Annotation of loncom/homework/structuretags.pm, revision 1.319
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.319 ! foxr 4: # $Id: structuretags.pm,v 1.318 2005/11/08 21:09:08 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 $result;
1.289 albertel 348: if (%Apache::lonhomework::results) {
1.159 albertel 349: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.284 albertel 350: if ($env{'request.state'} eq 'construct' || $symb eq '') {
351: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 352: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.284 albertel 353: $env{'request.uri'},'',$domain,$name);
1.159 albertel 354: &Apache::lonxml::debug('Construct Store return message:'.$result);
355: } else {
356: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
357: $symb,$courseid,$domain,$name);
358: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 359: if ($env{'request.role'} =~/^st/) {
360: &store_aggregates($symb,$courseid);
361: }
1.159 albertel 362: }
1.67 albertel 363: }
1.159 albertel 364: return $result;
1.65 albertel 365: }
1.289 albertel 366: use Data::Dumper;
1.65 albertel 367:
1.285 raeburn 368: # -------------------------------------------------------------store_aggregates
369: # Sends hash of values to be incremented in nohist_resourcetracker.db
370: # for the course. Increments total number of attempts, unique students
371: # and corrects for each part for an instance of a problem, as appropriate.
372: sub store_aggregates {
373: my ($symb,$courseid) = @_;
1.286 albertel 374: my %aggregate;
375: my @parts;
1.288 albertel 376: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
377: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 378: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 379: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 380: push(@parts, $1);
1.285 raeburn 381: }
382: }
1.286 albertel 383: foreach my $part (@parts) {
384: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
385: eq 'APPROX_ANS' ||
386: $Apache::lonhomework::results{'resource.'.$part.'.award'}
387: eq 'EXACT_ANS') {
1.287 albertel 388: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 389: }
1.286 albertel 390: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 391: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 392: } else {
1.293 albertel 393: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 394: if ($last_reset) {
1.293 albertel 395: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 396: $aggregate{$symb."\0".$part."\0users"} = 1;
397: }
398: }
1.285 raeburn 399: }
1.287 albertel 400: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 401: }
1.292 raeburn 402: if (keys (%aggregate) > 0) {
1.289 albertel 403: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 404: $cdomain,$cname);
405: }
406: }
1.289 albertel 407:
1.65 albertel 408: sub checkout_msg {
1.211 albertel 409: my %lt=&Apache::lonlocal::texthash(
410: 'resource'=>'The resource needs to be checked out',
411: '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.',
412: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
413: 'checkout'=>'Check out Exam for Viewing',
414: 'checkout?'=>'Check out Exam?');
1.159 albertel 415: return (<<ENDCHECKOUT);
1.211 albertel 416: <h2>$lt{'resource'}</h2>
417: <p>$lt{'id_expln'}</p>
418: <font color="red">
419: <p>$lt{'warning'}</p>
1.91 albertel 420: </font>
1.284 albertel 421: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.91 albertel 422: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 423: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 424: </form>
425: ENDCHECKOUT
426: }
427:
1.252 albertel 428: sub firstaccess_msg {
1.253 albertel 429: my ($time,$symb)=@_;
430: my ($map)=&Apache::lonnet::decode_symb($symb);
431: my $foldertitle=&Apache::lonnet::gettitle($map);
432: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.252 albertel 433: return (<<ENDCHECKOUT);
1.253 albertel 434: <h2>The resources in "$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 435: <form name="markaccess" method="POST" action="$env{'request.uri'}">
1.252 albertel 436: <input type="hidden" name="markaccess" value="yes" />
437: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
438: </form>
439: ENDCHECKOUT
440: }
441:
1.204 albertel 442: sub init_problem_globals {
443: my ($type)=@_;
444: #initialize globals
1.308 foxr 445: # For problems, we start out in part 0 (outside a <part> tag).
446: # and part 0 is used to describe the main body of the <problem>
447: #
1.204 albertel 448: if ($type eq 'problem') {
449: $Apache::inputtags::part='0';
450: @Apache::inputtags::partlist=('0');
1.266 albertel 451: $Apache::lonhomework::problemstatus=&get_problem_status('0');
452: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 453:
1.266 albertel 454: } elsif ($type eq 'library') {
1.204 albertel 455: $Apache::inputtags::part='';
456: @Apache::inputtags::partlist=();
457: $Apache::lonhomework::problemstatus='';
1.266 albertel 458: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 459:
1.304 albertel 460: } elsif ($type eq 'Task') {
461: $Apache::inputtags::part='0';
462: @Apache::inputtags::partlist=('0');
463: $Apache::lonhomework::problemstatus='';
464: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 465: }
466: @Apache::inputtags::responselist = ();
467: @Apache::inputtags::importlist = ();
468: @Apache::inputtags::previous=();
469: @Apache::inputtags::previous_version=();
470: $Apache::structuretags::printanswer='No';
471: @Apache::structuretags::whileconds=();
472: @Apache::structuretags::whilebody=();
473: @Apache::structuretags::whileline=();
474: $Apache::lonhomework::scantronmode=0;
475: undef($Apache::lonhomework::name);
476:
477: }
478:
479: sub reset_problem_globals {
480: my ($type)=@_;
481: undef(%Apache::lonhomework::history);
482: undef(%Apache::lonhomework::results);
483: undef($Apache::inputtags::part);
1.208 albertel 484: #don't undef this, lonhomework.pm takes care of this, we use this to
485: #detect if we try to do 2 problems in one file
486: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 487: undef($Apache::lonhomework::name);
488: }
489:
1.241 albertel 490: sub set_problem_state {
1.240 albertel 491: my ($part)=@_;
1.284 albertel 492: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 493: $Apache::lonhomework::history{"resource.$part.solved"}=
494: 'correct_by_student';
495: }
496: }
497:
1.241 albertel 498: sub get_problem_status {
499: my ($part)=@_;
1.267 albertel 500: my $problem_status;
1.284 albertel 501: if ($env{'request.state'} eq 'construct' &&
502: defined($env{'form.problemstatus'})) {
503: $problem_status=$env{'form.problemstatus'};
1.267 albertel 504: } else {
505: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
506: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 507: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 508: }
509: return $problem_status;
510: }
511:
1.9 albertel 512: sub start_problem {
1.159 albertel 513: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 514:
1.311 foxr 515: # We'll use the redirection to fix up printing of duedates.
1.312 albertel 516: &Apache::lonxml::startredirection();
1.311 foxr 517:
1.308 foxr 518: # Problems don't nest and we don't allow more than one <problem> in
519: # a .problem file.
520: #
1.184 albertel 521: if ( $Apache::inputtags::part ne '' ||
522: $Apache::lonhomework::parsing_a_problem) {
523: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
524: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
1.159 albertel 525: return '';
526: }
1.184 albertel 527:
528: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 529: &init_problem_globals('problem');
1.166 albertel 530:
1.284 albertel 531: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 532: $Apache::lonhomework::scantronmode=1;
533: }
1.161 albertel 534:
1.246 albertel 535: &initialize_storage();
1.159 albertel 536: if ($target ne 'analyze') {
537: if ($target eq 'web') {
538: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 539: }
1.284 albertel 540: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 541: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 542: if (($env{'request.state'} eq 'construct') &&
543: defined($env{'form.problemtype'})) {
544: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 545: }
1.240 albertel 546: &Apache::lonxml::debug("Found this to be of type :$Apache::ltonhomework::type:");
1.159 albertel 547: }
1.164 albertel 548: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 549: my $uri=$env{'request.uri'};
1.159 albertel 550: if ($uri=~/\.(\w+)$/) {
551: $Apache::lonhomework::type=$1;
552: &Apache::lonxml::debug("Using type of $1");
553: } else {
554: $Apache::lonhomework::type='problem';
555: &Apache::lonxml::debug("Using default type, problem, :$uri:");
556: }
1.87 albertel 557: }
1.301 albertel 558: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 559:
1.159 albertel 560: #added vars to the scripting enviroment
1.213 albertel 561: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 562: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 563: &Apache::run::run($expression,$safeeval);
1.159 albertel 564: my $status;
565: my $accessmsg;
566:
567: #should get back a <html> or the neccesary stuff to start XML/MathML
568: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
569: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.284 albertel 570: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 571:
572: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
573: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
574: $target eq 'tex') {
575: #handle exam checkout
576: if ($Apache::lonhomework::type eq 'exam') {
577: my $token=
578: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 579: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 580: $token=&Apache::lonxml::maketoken();
581: $Apache::lonhomework::history{"resource.0.outtoken"}=
582: $token;
583: }
584: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 585: }
1.284 albertel 586: if ($env{'form.markaccess'}) {
1.252 albertel 587: &Apache::lonnet::set_first_access('map');
588: }
1.159 albertel 589: #handle rand seed in construction space
590: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 591: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 592: if ($env{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 593: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
594: $rndseed.'" />'.
595: '<input type="submit" name="resetdata"
1.211 albertel 596: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 597: '<input type="hidden" name="username"
1.284 albertel 598: value="'.$env{'form.username'}.'" />';
599: if ($env{'user.adv'}) {
1.267 albertel 600: $form_tag_start.=
1.300 albertel 601: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 602: if (defined($env{'form.showallfoils'})) {
1.267 albertel 603: $form_tag_start.='checked="on"';
604: }
1.300 albertel 605: $form_tag_start.= ' />'.&mt(' Show All Foils').
606: '</label>';
1.267 albertel 607: }
608: $form_tag_start.='<hr />';
1.162 albertel 609: }
1.159 albertel 610: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
611: push (@Apache::inputtags::status,$status);
612: my $expression='$external::datestatus="'.$status.'";';
613: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
614: &Apache::run::run($expression,$safeeval);
615: &Apache::lonxml::debug("Got $status");
616: if (( $status eq 'CLOSED' ) ||
617: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 618: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 619: ( $status eq 'BANNED') ||
1.216 albertel 620: ( $status eq 'UNAVAILABLE') ||
621: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 622: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
623: if ( $target eq "web" ) {
624: $result.= $head_tag_start.'</head>';
625: my $msg=$body_tag_start;
626: if ($status eq 'UNAVAILABLE') {
1.245 albertel 627: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 628: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 629: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 630: }
1.216 albertel 631: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 632: $msg.='The problem '.$accessmsg;
633: } elsif ($status eq 'UNCHECKEDOUT') {
634: $msg.=&checkout_msg;
1.252 albertel 635: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 636: $msg.=&firstaccess_msg($accessmsg,$symb);
1.159 albertel 637: }
638: $result.=$msg.'<br />';
639: } elsif ($target eq 'tex') {
640: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
641: if ($status eq 'UNAVAILABLE') {
1.211 albertel 642: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 643: } else {
1.211 albertel 644: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 645: }
646: }
647: } elsif ($target eq 'web') {
648: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 649: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 650: $body_tag_start \n $form_tag_start".
1.227 albertel 651: '<input type="hidden" name="submitted" value="yes" />';
652: # create a page header and exit
1.284 albertel 653: if ($env{'request.state'} eq "construct") {
654: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 655: }
656: # if we are viewing someone else preserve that info
1.284 albertel 657: if (defined $env{'form.grade_symb'}) {
1.227 albertel 658: foreach my $field ('symb','courseid','domain','username') {
659: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 660: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 661: }
662: }
663: } elsif ($target eq 'tex') {
1.319 ! foxr 664: $result .= 'INSERTTEXFRONTMATTERHERE';
! 665:
1.99 sakharuk 666: }
1.159 albertel 667: } elsif ($target eq 'edit') {
668: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
669: &problem_edit_header();
1.226 albertel 670: $Apache::lonxml::warnings_error_header=
671: &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 672: my $temp=&Apache::edit::insertlist($target,$token);
673: $result.=$temp;
674: } elsif ($target eq 'modified') {
675: $result=$token->[4];
676: $result.=&Apache::edit::handle_insert();
677: } else {
678: # page_start returned a starting result, delete it if we don't need it
679: $result = '';
1.99 sakharuk 680: }
1.159 albertel 681: return $result;
1.9 albertel 682: }
683:
684: sub end_problem {
1.159 albertel 685: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.312 albertel 686: my $result= &Apache::lonxml::endredirection(); # started in &start_problem
1.310 foxr 687:
1.319 ! foxr 688: # Figure out the front matter which was too deeply coupled for me to easily
! 689: # unravel and replace the INSERTTEXFRONTMATTERHERE in result with it.
! 690: # note that we do this in end_problem because whether or not we display
! 691: # due dates depends on whether due dates have already been displayed in the problem parts.
! 692:
! 693: if ($target eq 'tex') {
! 694: my $frontmatter = '';
! 695: my $startminipage = '';
! 696: if (not $env{'form.problem_split'}=~/yes/) {
! 697: $startminipage = '\begin{minipage}{\textwidth}';
! 698: }
! 699: my $id = $Apache::inputtags::part;
! 700: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
! 701: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
! 702: my @packages = split /,/,$packages;
! 703: my $allow_print_points = 0;
! 704: foreach my $partial_key (@packages) {
! 705: if ($partial_key=~m/^part_0$/) {
! 706: $allow_print_points=1;
! 707: }
! 708: }
! 709: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
! 710: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
! 711: if (lc($env{'course.'.$env{'request.course.id'}.
! 712: '.disableexampointprint'}) eq 'yes') {
! 713: $allow_print_points=0;
! 714: }
! 715: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
! 716: 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 ';
! 717: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
! 718: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
! 719:
! 720: # Figure out what the due date is and if we need to print
! 721: # it in the problem header. We have been logging the
! 722: # last due date written to file.
! 723:
! 724: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
! 725: my $duedate = POSIX::strftime("%c",localtime($duetime));
! 726: my $temp_file;
! 727: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
! 728:
! 729: # Figure out what the last printed due date is or set it
! 730: # to the epoch if no duedates have been printed.
! 731:
! 732: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
! 733: if (-e $filename) {
! 734: $temp_file = Apache::File->new($filename);
! 735: my @due_file = <$temp_file>;
! 736: $due_file_content = $due_file[$#due_file];
! 737: chomp $due_file_content;
! 738: }
! 739:
! 740: # We display the due date iff it is not the same as the last
! 741: # duedate in problem header ($due_file_content), and
! 742: # none of our parts displayed a duedate.
! 743: #
! 744: my $parts_with_displayduedate;
! 745: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
! 746: $parts_with_displayduedate =
! 747: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
! 748: } else {
! 749: $parts_with_displayduedate = 0;
! 750: }
! 751: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
! 752: $temp_file = Apache::File->new('>'.$filename);
! 753: print $temp_file "$duetime\n";
! 754: if (not $env{'request.symb'} =~ m/\.page_/) {
! 755: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
! 756: $frontmatter .= $begin_doc.
! 757: '\textit{Due date: '.$duedate.'} '.$toc_line;
! 758: } else {
! 759: $frontmatter.= $begin_doc.$toc_line;
! 760: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
! 761: }
! 762: } else {
! 763: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
! 764: }
! 765: } else {
! 766: if (not $env{'request.symb'} =~ m/\.page_/) {
! 767: $frontmatter .= $begin_doc.$toc_line;
! 768: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
! 769: } else {
! 770: $frontmatter .= '\vskip 1mm \\\\\\\\';
! 771: }
! 772: }
! 773: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
! 774: }
! 775:
1.159 albertel 776: my $status=$Apache::inputtags::status['-1'];
777: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
778: $target eq 'tex') {
1.249 albertel 779: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 780: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 781: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
782: &Apache::inputtags::grade;
783: } else {
784: # move any submission data to .hidden
785: &Apache::inputtags::hidealldata($Apache::inputtags::part);
786: }
1.159 albertel 787: } elsif ( ($target eq 'web' || $target eq 'tex') &&
788: $Apache::inputtags::part eq '0' &&
1.252 albertel 789: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 790: # if part is zero, no <part>s existed, so we need show the current
791: # grading status
792: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
793: $result.= $gradestatus;
794: }
795: if (
1.284 albertel 796: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 797: ($target eq 'answer') || ($target eq 'tex')
798: ) {
1.227 albertel 799: if ($target ne 'tex' &&
1.284 albertel 800: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 801: $result.="</form>";
802: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
1.159 albertel 803: }
804: if ($target eq 'web') {
1.281 albertel 805: $result.=&Apache::lonxml::xmlend().'</html>';
1.159 albertel 806: } elsif ($target eq 'tex') {
1.178 sakharuk 807: my $endminipage = '';
1.284 albertel 808: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 809: $endminipage = '\end{minipage}';
810: }
1.284 albertel 811: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 812: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 813: $result=~s/<\/html>//;
1.159 albertel 814: } else {
1.262 sakharuk 815: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 816: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 817: $result .= $endminipage.'\end{document} ';
818: } else {
819: $result .= '';
820: }
1.159 albertel 821: }
822: }
823: }
824: if ($target eq 'grade') {
825: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
826: &finalize_storage();
827: }
1.284 albertel 828: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
829: && $env{'form.answer_output_mode'} ne 'tex') {
1.294 albertel 830: $result.=&Apache::lonxml::xmlend().'</html>';
831: # normally we get it from above, but in CSTR
1.172 albertel 832: # we always show answer mode too.
1.159 albertel 833: }
834: } elsif ($target eq 'meta') {
835: if ($Apache::inputtags::part eq '0') {
1.179 albertel 836: @Apache::inputtags::response=();
1.159 albertel 837: $result=&Apache::response::mandatory_part_meta;
838: }
1.215 albertel 839: $result.=&Apache::response::meta_part_order();
1.258 albertel 840: $result.=&Apache::response::meta_response_order();
1.159 albertel 841: } elsif ($target eq 'edit') {
842: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 843: $result .= &problem_edit_footer();
1.159 albertel 844: }
1.155 albertel 845:
1.284 albertel 846: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 847: &Apache::inputtags::check_for_duplicate_ids();
848: }
1.204 albertel 849:
850: &reset_problem_globals('problem');
1.159 albertel 851:
852: return $result;
1.48 albertel 853: }
854:
1.108 albertel 855:
1.48 albertel 856: sub start_library {
1.159 albertel 857: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
858: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 859: if ($$tagstack[0] eq 'library') {
860: &init_problem_globals('library');
861: $Apache::lonhomework::type='problem';
862: }
1.159 albertel 863: if ($target eq 'edit') {
864: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
865: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
866: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
867: &problem_edit_header();
868: my $temp=&Apache::edit::insertlist($target,$token);
869: $result.=$temp;
870: } elsif ($target eq 'modified') {
871: $result=$token->[4];
872: $result.=&Apache::edit::handle_insert();
873: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 874: $env{'request.state'} eq "construct" ) {
1.159 albertel 875: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
876: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
877: my $name=&get_resource_name($parstack,$safeeval);
878: my $rndseed=&setup_rndseed($safeeval);
879: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 880: $body_tag_start \n $form_tag_start".
1.159 albertel 881: '<input type="hidden" name="submitted" value="yes" />';
882: $result.=&problem_web_to_edit_header($rndseed);
883: }
884: return $result;
1.48 albertel 885: }
886:
887: sub end_library {
1.159 albertel 888: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
889: my $result='';
890: if ($target eq 'edit') {
891: $result=&problem_edit_footer();
892: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 893: $env{'request.state'} eq "construct") {
1.280 albertel 894: $result.='</form>'.&Apache::loncommon::endbodytag().
895: &Apache::lonxml::xmlend();
1.159 albertel 896: }
1.204 albertel 897: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 898: return $result;
1.197 www 899: }
900:
901: sub start_definetag {
902: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
903:
904: my $result;
905:
906: my $name = $token->[2]->{'name'};
907: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
908: if ($name=~/^\//) {
909: $result=
910: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
911: } else {
912: $result=
913: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
914: }
915: $skip=~s/\</\<\;/gs;
916: $skip=~s/\>/\>\;/gs;
917: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
918: return $result;
919: }
920:
921: sub end_definetag {
922: return '';
1.1 albertel 923: }
924:
925: sub start_block {
1.201 albertel 926: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 927:
928: my $result;
1.1 albertel 929:
1.160 albertel 930: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 931: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 932: my $code = $token->[2]->{'condition'};
1.201 albertel 933: if (defined($code)) {
1.137 albertel 934: if (!$Apache::lonxml::default_homework_loaded) {
935: &Apache::lonxml::default_homework_load($safeeval);
936: }
1.131 albertel 937: $result = &Apache::run::run($code,$safeeval);
938: &Apache::lonxml::debug("block :$code: returned :$result:");
939: } else {
940: $result='1';
941: }
942: if ( ! $result ) {
1.201 albertel 943: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 944: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
945: }
946: $result='';
947: } elsif ($target eq 'edit') {
948: $result .=&Apache::edit::tag_start($target,$token);
949: $result .=&Apache::edit::text_arg('Test Condition:','condition',
950: $token,40);
951: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
952: } elsif ($target eq 'modified') {
953: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
954: $safeeval,'condition');
955: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 956: }
1.131 albertel 957: return $result;
1.1 albertel 958: }
959:
960: sub end_block {
1.167 www 961: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
962: my $result;
963: if ($target eq "edit") {
964: $result.= &Apache::edit::tag_end($target,$token,'');
965: }
966: return $result;
967: }
968:
969: sub start_languageblock {
1.201 albertel 970: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 971:
972: my $result;
973:
974: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
975: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 976: my $include = $token->[2]->{'include'};
977: my $exclude = $token->[2]->{'exclude'};
978: my %languages=&Apache::loncommon::display_languages();
979: $result='1';
980: if ($include) {
981: $result='';
982: foreach (split(/\,/,$include)) {
983: if ($languages{$_}) { $result='1'; }
984: }
985: }
986: if ($exclude) {
987: foreach (split(/\,/,$exclude)) {
988: if ($languages{$_}) { $result='0'; }
989: }
990: }
991: if ( ! $result ) {
992: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
993: $style);
994: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
995: }
996: $result='';
1.167 www 997: } elsif ($target eq 'edit') {
998: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 999: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1000: $token,40);
1.211 albertel 1001: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1002: $token,40);
1003: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1004: } elsif ($target eq 'modified') {
1005: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1006: $safeeval,'include',
1007: 'exclude');
1.167 www 1008: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1009: }
1010: return $result;
1011: }
1012:
1013: sub end_languageblock {
1.170 www 1014: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1015: my $result;
1.201 albertel 1016: if ($target eq "edit") {
1.170 www 1017: $result.= &Apache::edit::tag_end($target,$token,'');
1018: }
1019: return $result;
1020: }
1021:
1022: sub start_instructorcomment {
1.201 albertel 1023: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1024:
1025: my $result;
1026:
1027: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1028: $target eq 'tex' || $target eq 'analyze') {
1.284 albertel 1029: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1030: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1031: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1032: $parser,$style);
1.170 www 1033: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1034: }
1035: $result='';
1036: } elsif ($target eq 'edit') {
1037: $result .=&Apache::edit::tag_start($target,$token);
1038: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1039: }
1040: return $result;
1041: }
1042:
1043: sub end_instructorcomment {
1.159 albertel 1044: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1045: my $result;
1046: if ($target eq "edit") {
1047: $result.= &Apache::edit::tag_end($target,$token,'');
1048: }
1049: return $result;
1.4 tsai 1050: }
1051:
1052: sub start_while {
1.159 albertel 1053: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1054:
1.160 albertel 1055: my $result;
1.161 albertel 1056: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 1057: $target eq 'tex' || $target eq 'analyze') {
1058: my $code = $token->[2]->{'condition'};
1.4 tsai 1059:
1.160 albertel 1060: push( @Apache::structuretags::whileconds, $code);
1061: if (!$Apache::lonxml::default_homework_loaded) {
1062: &Apache::lonxml::default_homework_load($safeeval);
1063: }
1064: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 1065: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 1066: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1067: push( @Apache::structuretags::whileline, $token->[5]);
1068: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1069: if ( $result ) {
1070: &Apache::lonxml::newparser($parser,\$bodytext);
1071: }
1072: } elsif ($target eq 'edit') {
1073: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1074: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1075: $token,40);
1076: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1077: } elsif ($target eq 'modified') {
1078: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1079: $safeeval,'condition');
1080: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1081: }
1.160 albertel 1082: return $result;
1.4 tsai 1083: }
1084:
1085: sub end_while {
1.159 albertel 1086: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1087: my $result;
1088:
1089: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1090: $target eq 'tex' || $target eq 'analyze') {
1091: my $code = pop(@Apache::structuretags::whileconds);
1092: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1093: my $line = pop(@Apache::structuretags::whileline);
1094: my $return = &Apache::run::run($code,$safeeval);
1095: my $starttime=time;
1096: my $error=0;
1097: while ($return) {
1098: if (time-$starttime >
1099: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1100: #$return = 0; $error=1; next;
1.161 albertel 1101: }
1102: $result.=&Apache::scripttag::xmlparse($bodytext);
1103: $return = &Apache::run::run($code,$safeeval);
1104: }
1105: if ($error) {
1.270 albertel 1106: &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 1107: }
1108: } elsif ($target eq "edit") {
1109: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1110: }
1.160 albertel 1111: return $result;
1.1 albertel 1112: }
1.6 tsai 1113:
1.160 albertel 1114: # <randomlist show="1">
1.6 tsai 1115: # <tag1>..</tag1>
1116: # <tag2>..</tag2>
1117: # <tag3>..</tag3>
1.160 albertel 1118: # ...
1.6 tsai 1119: # </randomlist>
1120: sub start_randomlist {
1.159 albertel 1121: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1122: my $result;
1123: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1124: $target eq 'tex' || $target eq 'analyze') {
1125: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1126: my $b_parser= HTML::LCParser->new(\$body);
1127: $b_parser->xml_mode(1);
1128: $b_parser->marked_sections(1);
1.159 albertel 1129: my $b_tok;
1130: my @randomlist;
1131: my $list_item;
1132: while($b_tok = $b_parser->get_token() ) {
1133: if($b_tok->[0] eq 'S') { # start tag
1134: # get content of the tag until matching end tag
1135: # get all text upto the matching tag
1136: # and push the content into @randomlist
1137: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1138: $b_parser);
1139: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1140: push(@randomlist,$list_item);
1141: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1142: # $list_item</b>";
1143: }
1144: if($b_tok->[0] eq 'T') { # text
1145: # what to do with text in between tags?
1146: # print "<b>TEXT $b_tok->[1]</b><br />";
1147: }
1148: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1149: # print "<b>END-TAG $b_tok->[1]</b><br />";
1150: # }
1151: }
1.303 albertel 1152: if (@randomlist) {
1153: my @idx_arr = (0 .. $#randomlist);
1154: &Apache::structuretags::shuffle(\@idx_arr);
1155: my $bodytext = '';
1156: my $show=$#randomlist;
1157: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1158: $showarg--;
1159: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1160: for(0 .. $show) {
1161: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1162: }
1163: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1164: }
1165: } elsif ($target eq 'edit' ) {
1166: $result .=&Apache::edit::tag_start($target,$token);
1167: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1168: $token,5);
1169: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1170: } elsif ($target eq 'modified' ) {
1171: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1172: $safeeval,'show');
1173: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1174: }
1175: return $result;
1.7 tsai 1176: }
1177:
1178: sub shuffle {
1179: my $a=shift;
1180: my $i;
1.303 albertel 1181: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1182: &Apache::response::pushrandomnumber();
1.159 albertel 1183: for($i=@$a;--$i;) {
1184: my $j=int(&Math::Random::random_uniform() * ($i+1));
1185: next if $i == $j;
1186: @$a[$i,$j] = @$a[$j,$i];
1187: }
1.251 albertel 1188: &Apache::response::poprandomnumber();
1.7 tsai 1189: }
1.6 tsai 1190: }
1191:
1192: sub end_randomlist {
1.159 albertel 1193: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1194: my $result;
1195: if ($target eq 'edit' ) {
1196: $result=&Apache::edit::tag_end($target,$token,
1197: 'End Randomly Parsed Block');
1198: }
1199: return $result;
1.6 tsai 1200: }
1201:
1.283 albertel 1202: sub ordered_show_check {
1203: my $last_part=$Apache::inputtags::partlist[-2];
1204: my $in_order=
1205: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1206: my $in_order_show=1;
1207: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1208: $in_order_show=&Apache::response::check_status($last_part);
1209: }
1210: return $in_order_show;
1211: }
1212:
1.11 albertel 1213: sub start_part {
1.159 albertel 1214: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.312 albertel 1215: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1216: # duedates.
1.159 albertel 1217: my $result='';
1218: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1219: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1220: $Apache::inputtags::part=$id;
1.177 albertel 1221: push(@Apache::inputtags::partlist,$id);
1222: @Apache::inputtags::response=();
1.159 albertel 1223: @Apache::inputtags::previous=();
1224: @Apache::inputtags::previous_version=();
1.241 albertel 1225: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1226: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1227: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1228: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1229: my $in_order_show=&ordered_show_check();
1.214 albertel 1230: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1231: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1232: &Apache::run::run($expression,$safeeval);
1.159 albertel 1233:
1234: if ($target eq 'meta') {
1.224 www 1235: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1236: return &Apache::response::mandatory_part_meta.
1237: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1238: } elsif ($target eq 'web' || $target eq 'grade' ||
1239: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1240: if ($hidden || !$in_order_show) {
1.159 albertel 1241: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1242: } else {
1243: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1244: push (@Apache::inputtags::status,$status);
1245: my $expression='$external::datestatus="'.$status.'";';
1246: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1247: &Apache::run::run($expression,$safeeval);
1.284 albertel 1248: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1249: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1250: }
1.216 albertel 1251: if (( $status eq 'CLOSED' ) ||
1252: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1253: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1254: ( $status eq 'BANNED') ||
1255: ( $status eq 'UNAVAILABLE') ||
1256: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 1257: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1258: if ( $target eq "web" ) {
1.211 albertel 1259: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1260: } elsif ( $target eq 'tex' ) {
1.284 albertel 1261: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1262: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1263: } else {
1.211 albertel 1264: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1265: }
1.159 albertel 1266: }
1267: } else {
1268: if ($target eq 'tex') {
1.284 albertel 1269: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1270: if ($$tagstack[-2] eq 'td') {
1271: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1272: } else {
1273: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1274: }
1.195 sakharuk 1275: }
1.159 albertel 1276: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1277: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1278: my @allkeys = split /,/,$allkeys;
1279: my $allow_print_points = 0;
1280: foreach my $partial_key (@allkeys) {
1.230 albertel 1281: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1282: if ($1 ne '0') {$allow_print_points=1;}
1283: }
1284: }
1.275 albertel 1285: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1286: if (defined($maxtries) && $maxtries < 0) {
1287: $allow_print_points=0;
1288: }
1.302 albertel 1289: if (lc($env{'course.'.$env{'request.course.id'}.
1290: '.disableexampointprint'}) eq 'yes') {
1291: $allow_print_points=0;
1292: }
1.222 sakharuk 1293: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1294: } elsif ($target eq 'web') {
1295: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1296: }
1297: }
1298: }
1299: } elsif ($target eq 'edit') {
1300: $result.=&Apache::edit::tag_start($target,$token);
1301: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1302: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1303: ' '.
1304: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1305: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1306: } elsif ($target eq 'modified') {
1307: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1308: $safeeval,'id','display');
1.159 albertel 1309: if ($constructtag) {
1.225 albertel 1310: #limiting ids to only letters numbers, and space
1.224 www 1311: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1312: $result = &Apache::edit::rebuild_tag($token);
1313: $result.=&Apache::edit::handle_insert();
1314: }
1315: }
1316: return $result;
1.11 albertel 1317: }
1318:
1319: sub end_part {
1.159 albertel 1320: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1321: &Apache::lonxml::debug("in end_part $target ");
1322: my $status=$Apache::inputtags::status['-1'];
1323: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1324: my $in_order_show=&ordered_show_check();
1.312 albertel 1325: my $result= &Apache::lonxml::endredirection(); # started in &start_part
1326: if ($target eq 'grade') {
1.249 albertel 1327: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1328: !$hidden && $in_order_show) {
1.311 foxr 1329: $result.=&Apache::inputtags::grade;
1.249 albertel 1330: } else {
1331: # move any submission data to .hidden
1332: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1333: }
1.283 albertel 1334: } elsif (($target eq 'web' || $target eq 'tex') &&
1335: !$hidden && $in_order_show) {
1.159 albertel 1336: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1337: $target);
1.212 albertel 1338: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1339: $gradestatus='';
1340: }
1.311 foxr 1341: $result.=$gradestatus;
1.265 sakharuk 1342: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1343: } elsif ($target eq 'edit') {
1.311 foxr 1344: $result.=&Apache::edit::end_table();
1.159 albertel 1345: }
1346: pop @Apache::inputtags::status;
1347: $Apache::inputtags::part='';
1.295 albertel 1348: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1349: return $result;
1.11 albertel 1350: }
1.1 albertel 1351:
1.25 albertel 1352: sub start_preduedate {
1.159 albertel 1353: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1354: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1.236 albertel 1355: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1356: if (!$Apache::lonhomework::scantronmode &&
1357: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1358: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1359: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.159 albertel 1360: &Apache::lonxml::get_all_text("/preduedate",$parser);
1361: }
1.24 albertel 1362: }
1.159 albertel 1363: return '';
1.24 albertel 1364: }
1365:
1.25 albertel 1366: sub end_preduedate {
1.159 albertel 1367: return '';
1.24 albertel 1368: }
1369:
1.25 albertel 1370: sub start_postanswerdate {
1.159 albertel 1371: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.234 albertel 1372: if ($target eq 'web' || $target eq 'grade') {
1.300 albertel 1373: if ($Apache::lonhomework::scantronmode ||
1374: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.159 albertel 1375: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1376: }
1377: } elsif ($target eq 'tex') {
1.234 albertel 1378: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1.159 albertel 1379: }
1380: return '';
1.24 albertel 1381: }
1382:
1.25 albertel 1383: sub end_postanswerdate {
1.159 albertel 1384: return '';
1.24 albertel 1385: }
1386:
1.25 albertel 1387: sub start_notsolved {
1.159 albertel 1388: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1389: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1390: $target eq 'tex') {
1391: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1392: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1393: if ($gradestatus =~ /^correct/ &&
1394: &Apache::response::show_answer()) {
1.159 albertel 1395: &Apache::lonxml::debug("skipping");
1396: &Apache::lonxml::get_all_text("/notsolved",$parser);
1397: }
1.24 albertel 1398: }
1.159 albertel 1399: return '';
1.24 albertel 1400: }
1401:
1.25 albertel 1402: sub end_notsolved {
1.159 albertel 1403: return '';
1.24 albertel 1404: }
1405:
1406: sub start_solved {
1.159 albertel 1407: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1408: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1409: $target eq 'tex') {
1410: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1411: if ($gradestatus !~ /^correct/ ||
1412: !&Apache::response::show_answer()) {
1.159 albertel 1413: &Apache::lonxml::get_all_text("/solved",$parser);
1414: }
1.24 albertel 1415: }
1.159 albertel 1416: return '';
1.24 albertel 1417: }
1418:
1419: sub end_solved {
1.248 albertel 1420: return '';
1421: }
1422:
1423: sub start_problemtype {
1424: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1425: my $result;
1426: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1427: $target eq 'tex' || $target eq 'analyze') {
1428: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1429: if (!defined($mode)) { $mode='show'; }
1430: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1431: my $found=0;
1432: foreach my $type (split(',',$for)) {
1433: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1434: }
1435: if ($mode eq 'show' && !$found) {
1436: &Apache::lonxml::get_all_text("/problemtype",$parser);
1437: }
1438: if ($mode eq 'hide' && $found) {
1439: &Apache::lonxml::get_all_text("/problemtype",$parser);
1440: }
1441: } elsif ($target eq 'edit') {
1442: $result .=&Apache::edit::tag_start($target,$token);
1443: $result.=&Apache::edit::select_arg('Mode:','mode',
1444: [['show','Show'],
1445: ['hide','Hide']]
1446: ,$token);
1447: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1448: [ ['exam','Exam/Quiz Problem'],
1449: ['survey','Survey'],
1450: ['problem','Homework Problem'] ]
1451: ,$token);
1452: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1453: } elsif ($target eq 'modified') {
1454: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1455: $safeeval,'mode','for');
1456: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1457: }
1458: return $result;
1459: }
1460:
1461: sub end_problemtype {
1.159 albertel 1462: return '';
1.24 albertel 1463: }
1.34 albertel 1464:
1465: sub start_startouttext {
1.159 albertel 1466: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1467: my @result=(''.'');
1468: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1469: return (@result);
1.34 albertel 1470: }
1.159 albertel 1471:
1.34 albertel 1472: sub end_startouttext {
1.159 albertel 1473: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1474: my $result='';
1475: my $text='';
1476:
1477: if ($target eq 'edit') {
1478: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1.211 albertel 1479: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1480: <td>".&mt('Delete:').
1.159 albertel 1481: &Apache::edit::deletelist($target,$token)
1482: ."</td>
1.42 albertel 1483: <td>".
1.159 albertel 1484: &Apache::edit::insertlist($target,$token).
1485: &Apache::edit::end_row().
1486: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1487: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1488: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1489: }
1490: if ($target eq 'modified') {
1.219 albertel 1491: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1492: }
1493: if ($target eq 'tex') {
1494: $result .= '\noindent ';
1495: }
1496: return $result;
1.34 albertel 1497: }
1.159 albertel 1498:
1.34 albertel 1499: sub start_endouttext {
1.159 albertel 1500: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1501: my $result='';
1502: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1503: if ($target eq "modified") {
1504: $result='<endouttext />'.
1505: &Apache::edit::handle_insertafter('startouttext'); }
1506: return $result;
1.34 albertel 1507: }
1.159 albertel 1508:
1.34 albertel 1509: sub end_endouttext {
1.159 albertel 1510: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1511: my @result=('','');
1512: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1513: return (@result);
1.34 albertel 1514: }
1.159 albertel 1515:
1.45 albertel 1516: sub delete_startouttext {
1.159 albertel 1517: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1518: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1519: my $text=$$parser['-1']->get_text("/endouttext");
1520: my $ntoken=$$parser['-1']->get_token();
1521: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1522: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1523: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1524: # they did the last time round
1525: &Apache::lonxml::increasedepth($ntoken);
1526: &Apache::lonxml::decreasedepth($ntoken);
1527: return 1;
1.193 www 1528: }
1529:
1530: sub start_simpleeditbutton {
1531: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1532: my $result='';
1.284 albertel 1533: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1534: ($target eq 'web') &&
1.284 albertel 1535: (&Apache::lonnet::allowed('srm',$env{'request.course.id'}))) {
1536: my $url=$env{'request.noversionuri'};
1.193 www 1537: $url=~s/\?.*$//;
1.278 albertel 1538: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1539: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1540: '<a href="'.$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 1541: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1542: }
1543: return $result;
1544: }
1545:
1546: sub end_simpleeditbutton {
1547: return '';
1.45 albertel 1548: }
1.34 albertel 1549:
1.1 albertel 1550: 1;
1551: __END__
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