Annotation of loncom/homework/structuretags.pm, revision 1.351
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.351 ! albertel 4: # $Id: structuretags.pm,v 1.350 2006/04/20 03:28:52 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;
1.338 albertel 39: use Apache::lonenc();
1.267 albertel 40: use Time::HiRes qw( gettimeofday tv_interval );
1.78 harris41 41: BEGIN {
1.248 albertel 42: &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 43: }
44:
45: sub start_web {
1.326 albertel 46: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
47: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
1.339 albertel 48: if ($target eq 'web' || $target eq 'webgrade') {
1.200 albertel 49: return $bodytext;
1.159 albertel 50: }
51: return '';
1.10 albertel 52: }
53:
54: sub end_web {
1.44 ng 55: return '';
1.10 albertel 56: }
57:
58: sub start_tex {
1.326 albertel 59: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 60: my $result='';
1.326 albertel 61: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
1.200 albertel 62: if ($target eq 'tex') {
63: return $bodytext.' ';
1.159 albertel 64: }
1.198 sakharuk 65: return $result;;
1.10 albertel 66: }
67:
68: sub end_tex {
1.44 ng 69: return '';
1.9 albertel 70: }
71:
1.48 albertel 72: sub page_start {
1.345 albertel 73: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
74: $extra_head)=@_;
1.159 albertel 75: my %found;
1.207 albertel 76: foreach my $taginside (@$tagstack) {
1.159 albertel 77: foreach my $taglookedfor ('html','body','form') {
78: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
79: }
80: }
81:
1.343 albertel 82: if ($target eq 'tex') {
83: return
84: &Apache::londefdef::start_html($target,$token,$tagstack,
85: $parstack,$parser,$safeeval);
86: }
87:
1.344 albertel 88: my %body_args;
89: if (defined($found{'html'})) {
90: $body_args{'skip_phases'}{'head'}=1;
91: } else {
1.343 albertel 92:
1.345 albertel 93: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 94:
1.336 albertel 95: my $css_href = &Apache::lonnet::EXT('resource.0.cssfile');
1.335 albertel 96: if ($css_href =~ /\S/) {
97: &Apache::lonxml::extlink($css_href);
1.343 albertel 98: $extra_head .=
1.335 albertel 99: '<link rel="stylesheet" type="text/css" href="'.$css_href.'" />';
100: }
1.327 albertel 101: if ($target eq 'edit') {
1.343 albertel 102: $extra_head.=&Apache::edit::js_change_detection().
103: "<script type=\"text/javascript\">\n".
104: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
105: &Apache::loncommon::browser_and_searcher_javascript().
106: "\n</script>\n";
107: }
1.159 albertel 108: }
1.343 albertel 109:
1.344 albertel 110: if (defined($found{'body'})) {
111: $body_args{'skip_phases'}{'body'}=1;
112: } elsif (!defined($found{'body'})
113: && $env{'request.state'} eq 'construct') {
1.343 albertel 114: if ($target eq 'web' || $target eq 'edit') {
1.344 albertel 115: # no extra args to bodytag
1.297 albertel 116: }
1.272 albertel 117: } elsif (!defined($found{'body'})) {
1.343 albertel 118: my %add_entries;
1.159 albertel 119: my $background=&Apache::lonxml::get_param('background',$parstack,
120: $safeeval);
1.343 albertel 121: if ($background ne '' ) {
122: $add_entries{'background'} = $background;
123: }
1.344 albertel 124:
1.290 albertel 125: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
126: $safeeval);
1.344 albertel 127: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
128:
129: $body_args{'bgcolor'} = $bgcolor;
130: $body_args{'no_title'} = 1;
131: $body_args{'force_register'} = 1;
132: $body_args{'add_entries'} = \%add_entries;
133: }
134:
135: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
136: \%body_args);
137:
138: if (!defined($found{'body'})
139: && $env{'request.state'} ne 'construct'
140: && ($target eq 'web' || $target eq 'webgrade')) {
141:
142: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonxml::whichuser();
143: if ($symb eq '' && !$publicuser) {
144: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
145: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
146: $page_start .= $help;
1.159 albertel 147: }
1.344 albertel 148: }
149:
150: if (!defined($found{'body'})) {
1.343 albertel 151: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 152: }
1.344 albertel 153:
1.159 albertel 154: my $form_tag_start;
155: if (!defined($found{'form'})) {
1.337 albertel 156: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.338 albertel 157: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.327 albertel 158: $form_tag_start.=$uri.'" ';
159: if ($target eq 'edit') {
160: $form_tag_start.=&Apache::edit::form_change_detection();
161: }
162: $form_tag_start.='>';
1.159 albertel 163: }
1.343 albertel 164: return ($page_start,$form_tag_start);
1.105 albertel 165: }
166:
1.141 matthew 167: #use Time::HiRes();
1.105 albertel 168: sub get_resource_name {
1.159 albertel 169: my ($parstack,$safeeval)=@_;
1.204 albertel 170: if (defined($Apache::lonhomework::name)) {
171: return $Apache::lonhomework::name;
172: }
1.279 albertel 173: my ($symb)=&Apache::lonxml::whichuser();
174: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 175: if ($name eq '') {
176: $name=&Apache::lonnet::EXT('resource.title');
177: if ($name eq 'con_lost') { $name = ''; }
178: }
1.204 albertel 179: if ($name!~/\S+/) {
1.284 albertel 180: $name=$env{'request.uri'};
1.205 albertel 181: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 182: }
1.159 albertel 183: $Apache::lonhomework::name=$name;
184: return $name;
1.105 albertel 185: }
186:
187: sub setup_rndseed {
1.159 albertel 188: my ($safeeval)=@_;
189: my $rndseed;
1.162 albertel 190: my ($symb)=&Apache::lonxml::whichuser();
1.333 albertel 191: if ($env{'request.state'} eq "construct"
192: || $symb eq ''
193: || $Apache::lonhomework::type eq 'practice'
194: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 195: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 196: ['rndseed']);
1.284 albertel 197: $rndseed=$env{'form.rndseed'};
1.159 albertel 198: if (!$rndseed) {
1.162 albertel 199: $rndseed=$Apache::lonhomework::history{'rndseed'};
200: if (!$rndseed) {
201: $rndseed=time;
202: }
1.284 albertel 203: $env{'form.rndseed'}=$rndseed;
1.162 albertel 204: }
1.284 albertel 205: if ($env{'form.resetdata'} eq &mt('New Problem Variation') ||
206: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 207: srand(time);
208: $rndseed=int(rand(2100000000));
1.284 albertel 209: $env{'form.rndseed'}=$rndseed;
210: delete($env{'form.resetdata'});
211: delete($env{'form.newrandomization'});
1.159 albertel 212: }
1.187 albertel 213: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 214: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 215: }
1.247 albertel 216: if ($Apache::lonhomework::history{'resource.CODE'}) {
217: $rndseed=&Apache::lonnet::rndseed();
218: }
1.221 albertel 219: if ($safeeval) {
220: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 221: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 222: }
1.159 albertel 223: }
224: return $rndseed;
1.105 albertel 225: }
226:
1.268 albertel 227: sub remember_problem_state {
228: return '
1.284 albertel 229: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
230: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
231: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 232: }
233:
1.105 albertel 234: sub problem_edit_header {
1.268 albertel 235: return '<input type="hidden" name="submitted" value="edit" />'.
236: &Apache::structuretags::remember_problem_state().'
1.210 albertel 237: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 238: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
1.328 albertel 239: <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 240: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
241: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
242: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.260 albertel 243: &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
244: .'</td></tr></table>'.
1.282 albertel 245: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 246: }
247:
248: sub problem_edit_footer {
1.210 albertel 249: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 250: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
1.348 albertel 251: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 252: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 253: }
254:
1.235 albertel 255: sub option {
256: my ($value,$name) = @_;
257: my $result ="<option value='".$value."' ";
1.284 albertel 258: if ($env{'form.'.$name} eq $value) {
1.235 albertel 259: $result.=" selected='on' ";
260: }
261: $result.='>';
262: return $result;
263: }
264:
1.105 albertel 265: sub problem_web_to_edit_header {
1.159 albertel 266: my ($rndseed)=@_;
1.313 albertel 267: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
268: if (!$Apache::lonhomework::parsing_a_task) {
269: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
270: }
271: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 272: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
273: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 274: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 275: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 276: $rndseed.'"
1.270 albertel 277: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 278: <label><input type="checkbox" name="showallfoils" ';
1.315 albertel 279: my $show_all_foils_text =
280: ($Apache::lonhomework::parsing_a_task) ?
281: &mt(' Show All Instances')
282: : &mt(' Show All Foils');
283:
1.284 albertel 284: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.315 albertel 285: $result.= ' />'.$show_all_foils_text.
1.228 www 286: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.281 albertel 287: '</label><hr />';
1.313 albertel 288: if (!$Apache::lonhomework::parsing_a_task) {
289: $result.="
1.235 albertel 290: <nobr>
291: Problem Status:
292: <select name='problemstate'>
1.270 albertel 293: <option value=''></option>
1.235 albertel 294: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
295: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
296: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
297: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
298: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
299: </select>
300: </nobr>
301: <nobr>
302: Problem Type:
303: <select name='problemtype'>
1.270 albertel 304: <option value=''></option>
1.242 albertel 305: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
306: ".&option('problem','problemtype').&mt("Homework problem")."</option>
307: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 308: </select>
309: </nobr>
310: <nobr>
311: Feedback Mode:
312: <select name='problemstatus'>
313: <option value=''></option>
1.242 albertel 314: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
315: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 316: </select>
317: </nobr>
1.242 albertel 318: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 319: <hr />";
1.313 albertel 320: my $numtoanalyze=$env{'form.numtoanalyze'};
321: if (!$numtoanalyze) { $numtoanalyze=20; }
322: $result.= '<input type="submit" name="problemmode" value='.
323: &mt('"Calculate answers').'" /> for
1.136 albertel 324: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 325: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
326: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 327: '',undef,undef,300).
1.210 albertel 328: '<hr />';
1.313 albertel 329: }
1.159 albertel 330: return $result;
1.48 albertel 331: }
332:
1.65 albertel 333: sub initialize_storage {
1.159 albertel 334: %Apache::lonhomework::results=();
1.162 albertel 335: %Apache::lonhomework::history=();
1.159 albertel 336: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.333 albertel 337: if ($env{'request.state'} eq 'construct'
338: || $symb eq ''
339: || $Apache::lonhomework::type eq 'practice') {
340:
341: my $namespace = $symb || $env{'request.uri'};
342: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
343: $env{'form.resetdata'} eq &mt('New Problem Variation') ||
344: $env{'form.newrandomization'} eq &mt('New Randomization')) {
345: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
346: &Apache::lonxml::debug("Attempt reset");
347: }
1.159 albertel 348: %Apache::lonhomework::history=
1.333 albertel 349: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 350: my ($temp)=keys %Apache::lonhomework::history ;
351: &Apache::lonxml::debug("Return message of $temp");
352: } else {
353: %Apache::lonhomework::history=
354: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
355: }
356: #ignore error conditions
1.67 albertel 357: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 358: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 359: }
360:
361: # -------------------------------------------------------------finalize_storage
362: # Stores away the result has to a student's environment
363: # checks form.grade_ for specific values, other wises stores
364: # to the running users environment
1.285 raeburn 365: # Will increment totals for attempts, students, and corrects
366: # if running user has student role.
1.65 albertel 367: sub finalize_storage {
1.159 albertel 368: my $result;
1.289 albertel 369: if (%Apache::lonhomework::results) {
1.323 albertel 370: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
371: delete(@Apache::lonhomework::results{@remove});
1.159 albertel 372: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.333 albertel 373: if ($env{'request.state'} eq 'construct'
374: || $symb eq ''
375: || $Apache::lonhomework::type eq 'practice') {
376: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 377: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 378: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 379: $namespace,'',$domain,$name);
1.159 albertel 380: &Apache::lonxml::debug('Construct Store return message:'.$result);
381: } else {
382: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
383: $symb,$courseid,$domain,$name);
384: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 385: if ($env{'request.role'} =~/^st/) {
386: &store_aggregates($symb,$courseid);
387: }
1.159 albertel 388: }
1.323 albertel 389: } else {
390: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 391: }
1.159 albertel 392: return $result;
1.65 albertel 393: }
1.289 albertel 394: use Data::Dumper;
1.65 albertel 395:
1.285 raeburn 396: # -------------------------------------------------------------store_aggregates
397: # Sends hash of values to be incremented in nohist_resourcetracker.db
398: # for the course. Increments total number of attempts, unique students
399: # and corrects for each part for an instance of a problem, as appropriate.
400: sub store_aggregates {
401: my ($symb,$courseid) = @_;
1.286 albertel 402: my %aggregate;
403: my @parts;
1.288 albertel 404: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
405: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 406: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 407: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 408: push(@parts, $1);
1.285 raeburn 409: }
410: }
1.286 albertel 411: foreach my $part (@parts) {
412: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
413: eq 'APPROX_ANS' ||
414: $Apache::lonhomework::results{'resource.'.$part.'.award'}
415: eq 'EXACT_ANS') {
1.287 albertel 416: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 417: }
1.286 albertel 418: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 419: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 420: } else {
1.293 albertel 421: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 422: if ($last_reset) {
1.293 albertel 423: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 424: $aggregate{$symb."\0".$part."\0users"} = 1;
425: }
426: }
1.285 raeburn 427: }
1.287 albertel 428: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 429: }
1.292 raeburn 430: if (keys (%aggregate) > 0) {
1.289 albertel 431: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 432: $cdomain,$cname);
433: }
434: }
1.289 albertel 435:
1.65 albertel 436: sub checkout_msg {
1.211 albertel 437: my %lt=&Apache::lonlocal::texthash(
438: 'resource'=>'The resource needs to be checked out',
439: '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.',
440: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
441: 'checkout'=>'Check out Exam for Viewing',
442: 'checkout?'=>'Check out Exam?');
1.159 albertel 443: return (<<ENDCHECKOUT);
1.211 albertel 444: <h2>$lt{'resource'}</h2>
445: <p>$lt{'id_expln'}</p>
446: <font color="red">
447: <p>$lt{'warning'}</p>
1.91 albertel 448: </font>
1.284 albertel 449: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.91 albertel 450: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 451: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 452: </form>
453: ENDCHECKOUT
454: }
455:
1.252 albertel 456: sub firstaccess_msg {
1.253 albertel 457: my ($time,$symb)=@_;
458: my ($map)=&Apache::lonnet::decode_symb($symb);
459: my $foldertitle=&Apache::lonnet::gettitle($map);
460: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.252 albertel 461: return (<<ENDCHECKOUT);
1.253 albertel 462: <h2>The resources in "$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 463: <form name="markaccess" method="POST" action="$env{'request.uri'}">
1.252 albertel 464: <input type="hidden" name="markaccess" value="yes" />
465: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
466: </form>
467: ENDCHECKOUT
468: }
469:
1.204 albertel 470: sub init_problem_globals {
471: my ($type)=@_;
472: #initialize globals
1.308 foxr 473: # For problems, we start out in part 0 (outside a <part> tag).
474: # and part 0 is used to describe the main body of the <problem>
475: #
1.204 albertel 476: if ($type eq 'problem') {
477: $Apache::inputtags::part='0';
478: @Apache::inputtags::partlist=('0');
1.266 albertel 479: $Apache::lonhomework::problemstatus=&get_problem_status('0');
480: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 481:
1.266 albertel 482: } elsif ($type eq 'library') {
1.204 albertel 483: $Apache::inputtags::part='';
484: @Apache::inputtags::partlist=();
485: $Apache::lonhomework::problemstatus='';
1.266 albertel 486: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 487:
1.304 albertel 488: } elsif ($type eq 'Task') {
489: $Apache::inputtags::part='0';
490: @Apache::inputtags::partlist=('0');
491: $Apache::lonhomework::problemstatus='';
492: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 493: }
494: @Apache::inputtags::responselist = ();
495: @Apache::inputtags::importlist = ();
496: @Apache::inputtags::previous=();
497: @Apache::inputtags::previous_version=();
498: $Apache::structuretags::printanswer='No';
499: @Apache::structuretags::whileconds=();
500: @Apache::structuretags::whilebody=();
501: @Apache::structuretags::whileline=();
502: $Apache::lonhomework::scantronmode=0;
503: undef($Apache::lonhomework::name);
504:
505: }
506:
507: sub reset_problem_globals {
508: my ($type)=@_;
509: undef(%Apache::lonhomework::history);
510: undef(%Apache::lonhomework::results);
511: undef($Apache::inputtags::part);
1.208 albertel 512: #don't undef this, lonhomework.pm takes care of this, we use this to
513: #detect if we try to do 2 problems in one file
514: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 515: undef($Apache::lonhomework::name);
516: }
517:
1.241 albertel 518: sub set_problem_state {
1.240 albertel 519: my ($part)=@_;
1.284 albertel 520: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 521: $Apache::lonhomework::history{"resource.$part.solved"}=
522: 'correct_by_student';
523: }
524: }
525:
1.241 albertel 526: sub get_problem_status {
527: my ($part)=@_;
1.267 albertel 528: my $problem_status;
1.284 albertel 529: if ($env{'request.state'} eq 'construct' &&
530: defined($env{'form.problemstatus'})) {
531: $problem_status=$env{'form.problemstatus'};
1.267 albertel 532: } else {
533: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
534: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 535: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 536: }
537: return $problem_status;
538: }
539:
1.9 albertel 540: sub start_problem {
1.326 albertel 541: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 542:
1.311 foxr 543: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 544: if (!$Apache::lonxml::metamode) {
545: &Apache::lonxml::startredirection();
546: }
1.311 foxr 547:
1.308 foxr 548: # Problems don't nest and we don't allow more than one <problem> in
549: # a .problem file.
550: #
1.184 albertel 551: if ( $Apache::inputtags::part ne '' ||
552: $Apache::lonhomework::parsing_a_problem) {
553: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 554: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 555: return '';
556: }
1.184 albertel 557:
558: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 559: &init_problem_globals('problem');
1.166 albertel 560:
1.284 albertel 561: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 562: $Apache::lonhomework::scantronmode=1;
563: }
1.161 albertel 564:
1.246 albertel 565: &initialize_storage();
1.159 albertel 566: if ($target ne 'analyze') {
567: if ($target eq 'web') {
568: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 569: }
1.284 albertel 570: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 571: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 572: if (($env{'request.state'} eq 'construct') &&
573: defined($env{'form.problemtype'})) {
574: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 575: }
1.332 albertel 576: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 577: }
1.164 albertel 578: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 579: my $uri=$env{'request.uri'};
1.159 albertel 580: if ($uri=~/\.(\w+)$/) {
581: $Apache::lonhomework::type=$1;
582: &Apache::lonxml::debug("Using type of $1");
583: } else {
584: $Apache::lonhomework::type='problem';
585: &Apache::lonxml::debug("Using default type, problem, :$uri:");
586: }
1.87 albertel 587: }
1.301 albertel 588: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 589:
1.159 albertel 590: #added vars to the scripting enviroment
1.213 albertel 591: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 592: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 593: &Apache::run::run($expression,$safeeval);
1.159 albertel 594: my $status;
595: my $accessmsg;
596:
1.343 albertel 597: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 598: my ($result,$form_tag_start);
599: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex') {
600: ($result,$form_tag_start) =
601: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
602: $name);
603: }
604:
1.284 albertel 605: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 606:
607: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
608: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
609: $target eq 'tex') {
610: #handle exam checkout
611: if ($Apache::lonhomework::type eq 'exam') {
612: my $token=
613: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 614: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 615: $token=&Apache::lonxml::maketoken();
616: $Apache::lonhomework::history{"resource.0.outtoken"}=
617: $token;
618: }
1.343 albertel 619: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 620: }
1.284 albertel 621: if ($env{'form.markaccess'}) {
1.252 albertel 622: &Apache::lonnet::set_first_access('map');
623: }
1.159 albertel 624: #handle rand seed in construction space
625: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 626: my ($symb)=&Apache::lonxml::whichuser();
1.333 albertel 627: if ($env{'request.state'} ne "construct" &&
628: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 629: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
630: $rndseed.'" />'.
631: '<input type="submit" name="resetdata"
1.334 albertel 632: value="'.&mt('New Problem Variation').'" />';
633: if (exists($env{'form.username'})) {
634: $form_tag_start.=
1.164 albertel 635: '<input type="hidden" name="username"
1.284 albertel 636: value="'.$env{'form.username'}.'" />';
1.334 albertel 637: }
1.333 albertel 638: if ($env{'request.role.adv'}) {
1.267 albertel 639: $form_tag_start.=
1.300 albertel 640: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 641: if (defined($env{'form.showallfoils'})) {
1.267 albertel 642: $form_tag_start.='checked="on"';
643: }
1.300 albertel 644: $form_tag_start.= ' />'.&mt(' Show All Foils').
645: '</label>';
1.267 albertel 646: }
647: $form_tag_start.='<hr />';
1.162 albertel 648: }
1.324 albertel 649:
650: ($status,$accessmsg,my $slot_name,my $slot) =
651: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 652: push (@Apache::inputtags::status,$status);
1.324 albertel 653:
1.159 albertel 654: my $expression='$external::datestatus="'.$status.'";';
655: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
656: &Apache::run::run($expression,$safeeval);
657: &Apache::lonxml::debug("Got $status");
1.324 albertel 658:
1.159 albertel 659: if (( $status eq 'CLOSED' ) ||
660: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 661: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 662: ( $status eq 'BANNED') ||
1.216 albertel 663: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 664: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 665: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 666: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
667: $style);
1.159 albertel 668: if ( $target eq "web" ) {
1.343 albertel 669: my $msg;
1.159 albertel 670: if ($status eq 'UNAVAILABLE') {
1.245 albertel 671: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 672: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 673: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 674: }
1.216 albertel 675: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 676: $msg.='The problem '.$accessmsg;
677: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 678: $msg.=&checkout_msg();
1.252 albertel 679: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 680: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 681: } elsif ($status eq 'NOT_IN_A_SLOT') {
682: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 683: }
684: $result.=$msg.'<br />';
685: } elsif ($target eq 'tex') {
1.332 albertel 686: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
687: : '\begin{minipage}{\textwidth}';
688: $result.='\begin{document}\noindent \vskip 1 mm '.
689: $startminipage.'\vskip 0 mm';
1.159 albertel 690: if ($status eq 'UNAVAILABLE') {
1.211 albertel 691: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 692: } else {
1.211 albertel 693: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 694: }
695: }
1.324 albertel 696: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 697: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
698: $style);
1.324 albertel 699: if ($target eq 'web') {
700: $result .= &Apache::bridgetask::proctor_validation_screen();
701: } elsif ($target eq 'grade') {
702: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
703: 'problem');
704: }
1.159 albertel 705: } elsif ($target eq 'web') {
1.343 albertel 706: $result.="\n $form_tag_start".
1.227 albertel 707: '<input type="hidden" name="submitted" value="yes" />';
708: # create a page header and exit
1.284 albertel 709: if ($env{'request.state'} eq "construct") {
710: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 711: }
712: # if we are viewing someone else preserve that info
1.284 albertel 713: if (defined $env{'form.grade_symb'}) {
1.227 albertel 714: foreach my $field ('symb','courseid','domain','username') {
715: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 716: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 717: }
718: }
719: } elsif ($target eq 'tex') {
1.319 foxr 720: $result .= 'INSERTTEXFRONTMATTERHERE';
721:
1.99 sakharuk 722: }
1.159 albertel 723: } elsif ($target eq 'edit') {
1.343 albertel 724: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 725: $Apache::lonxml::warnings_error_header=
726: &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 727: my $temp=&Apache::edit::insertlist($target,$token);
728: $result.=$temp;
729: } elsif ($target eq 'modified') {
730: $result=$token->[4];
731: $result.=&Apache::edit::handle_insert();
732: } else {
733: # page_start returned a starting result, delete it if we don't need it
734: $result = '';
1.99 sakharuk 735: }
1.159 albertel 736: return $result;
1.9 albertel 737: }
738:
739: sub end_problem {
1.159 albertel 740: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 741: my $result;
1.310 foxr 742:
1.321 albertel 743: if (!$Apache::lonxml::metamode) {
744: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 745: $Apache::lonxml::post_evaluate=0;
1.321 albertel 746: }
1.319 foxr 747:
748: if ($target eq 'tex') {
1.321 albertel 749:
750: # Figure out the front matter and replace the
751: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
752: # this in end_problem because whether or not we display due
753: # dates depends on whether due dates have already been
754: # displayed in the problem parts.
755:
1.319 foxr 756: my $frontmatter = '';
757: my $startminipage = '';
758: if (not $env{'form.problem_split'}=~/yes/) {
759: $startminipage = '\begin{minipage}{\textwidth}';
760: }
761: my $id = $Apache::inputtags::part;
762: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
763: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
764: my @packages = split /,/,$packages;
765: my $allow_print_points = 0;
766: foreach my $partial_key (@packages) {
767: if ($partial_key=~m/^part_0$/) {
768: $allow_print_points=1;
769: }
770: }
771: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
772: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
773: if (lc($env{'course.'.$env{'request.course.id'}.
774: '.disableexampointprint'}) eq 'yes') {
775: $allow_print_points=0;
776: }
777: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
778: 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 ';
779: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
780: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
781:
782: # Figure out what the due date is and if we need to print
783: # it in the problem header. We have been logging the
784: # last due date written to file.
785:
786: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
787: my $duedate = POSIX::strftime("%c",localtime($duetime));
788: my $temp_file;
789: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
790:
791: # Figure out what the last printed due date is or set it
792: # to the epoch if no duedates have been printed.
793:
794: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
795: if (-e $filename) {
796: $temp_file = Apache::File->new($filename);
797: my @due_file = <$temp_file>;
798: $due_file_content = $due_file[$#due_file];
799: chomp $due_file_content;
800: }
801:
802: # We display the due date iff it is not the same as the last
803: # duedate in problem header ($due_file_content), and
804: # none of our parts displayed a duedate.
805: #
806: my $parts_with_displayduedate;
807: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
808: $parts_with_displayduedate =
809: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
810: } else {
811: $parts_with_displayduedate = 0;
812: }
813: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
814: $temp_file = Apache::File->new('>'.$filename);
815: print $temp_file "$duetime\n";
816: if (not $env{'request.symb'} =~ m/\.page_/) {
817: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
818: $frontmatter .= $begin_doc.
819: '\textit{Due date: '.$duedate.'} '.$toc_line;
820: } else {
821: $frontmatter.= $begin_doc.$toc_line;
822: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
823: }
824: } else {
825: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
826: }
827: } else {
828: if (not $env{'request.symb'} =~ m/\.page_/) {
829: $frontmatter .= $begin_doc.$toc_line;
830: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
831: } else {
832: $frontmatter .= '\vskip 1mm \\\\\\\\';
833: }
834: }
835: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
836: }
837:
1.159 albertel 838: my $status=$Apache::inputtags::status['-1'];
839: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
840: $target eq 'tex') {
1.249 albertel 841: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 842: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 843: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
844: &Apache::inputtags::grade;
1.324 albertel 845: } elsif ($status eq 'NEEDS_CHECKIN') {
846: # no need to grade, and don't want to hide data
1.249 albertel 847: } else {
848: # move any submission data to .hidden
849: &Apache::inputtags::hidealldata($Apache::inputtags::part);
850: }
1.159 albertel 851: } elsif ( ($target eq 'web' || $target eq 'tex') &&
852: $Apache::inputtags::part eq '0' &&
1.252 albertel 853: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 854: # if part is zero, no <part>s existed, so we need show the current
855: # grading status
856: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
857: $result.= $gradestatus;
858: }
859: if (
1.284 albertel 860: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 861: ($target eq 'answer') || ($target eq 'tex')
862: ) {
1.227 albertel 863: if ($target ne 'tex' &&
1.284 albertel 864: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 865: $result.="</form>";
1.348 albertel 866: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 867: }
868: if ($target eq 'web') {
1.346 albertel 869: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 870: } elsif ($target eq 'tex') {
1.178 sakharuk 871: my $endminipage = '';
1.284 albertel 872: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 873: $endminipage = '\end{minipage}';
874: }
1.284 albertel 875: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 876: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 877: } else {
1.262 sakharuk 878: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 879: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 880: $result .= $endminipage.'\end{document} ';
881: } else {
882: $result .= '';
883: }
1.159 albertel 884: }
885: }
886: }
887: if ($target eq 'grade') {
888: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
889: &finalize_storage();
890: }
1.284 albertel 891: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
892: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 893: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 894: # normally we get it from above, but in CSTR
1.172 albertel 895: # we always show answer mode too.
1.159 albertel 896: }
897: } elsif ($target eq 'meta') {
898: if ($Apache::inputtags::part eq '0') {
1.179 albertel 899: @Apache::inputtags::response=();
1.159 albertel 900: $result=&Apache::response::mandatory_part_meta;
901: }
1.215 albertel 902: $result.=&Apache::response::meta_part_order();
1.258 albertel 903: $result.=&Apache::response::meta_response_order();
1.159 albertel 904: } elsif ($target eq 'edit') {
905: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 906: $result .= &problem_edit_footer();
1.320 albertel 907: } elsif ($target eq 'modified') {
908: $result .= $token->[2];
909: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 910: }
1.155 albertel 911:
1.284 albertel 912: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 913: &Apache::inputtags::check_for_duplicate_ids();
914: }
1.204 albertel 915:
916: &reset_problem_globals('problem');
1.159 albertel 917:
918: return $result;
1.48 albertel 919: }
920:
1.108 albertel 921:
1.48 albertel 922: sub start_library {
1.159 albertel 923: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 924: my ($result,$form_tag_start);
1.244 albertel 925: if ($$tagstack[0] eq 'library') {
926: &init_problem_globals('library');
927: $Apache::lonhomework::type='problem';
928: }
1.159 albertel 929: if ($target eq 'edit') {
1.343 albertel 930: ($result,$form_tag_start)=
931: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
932: 'Edit');
933: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 934: my $temp=&Apache::edit::insertlist($target,$token);
935: $result.=$temp;
936: } elsif ($target eq 'modified') {
937: $result=$token->[4];
938: $result.=&Apache::edit::handle_insert();
1.340 albertel 939: } elsif (($target eq 'web' || $target eq 'webgrade')
940: && $$tagstack[0] eq 'library'
941: && $env{'request.state'} eq "construct" ) {
1.159 albertel 942: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 943: ($result,$form_tag_start)=
944: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
945: $name);
1.159 albertel 946: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 947: $result.=" \n $form_tag_start".
1.159 albertel 948: '<input type="hidden" name="submitted" value="yes" />';
949: $result.=&problem_web_to_edit_header($rndseed);
950: }
951: return $result;
1.48 albertel 952: }
953:
954: sub end_library {
1.159 albertel 955: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
956: my $result='';
957: if ($target eq 'edit') {
958: $result=&problem_edit_footer();
959: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 960: $env{'request.state'} eq "construct") {
1.349 albertel 961: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 962: }
1.204 albertel 963: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 964: return $result;
1.197 www 965: }
966:
967: sub start_definetag {
1.326 albertel 968: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 969:
970: my $result;
971:
972: my $name = $token->[2]->{'name'};
1.326 albertel 973: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 974: if ($name=~/^\//) {
975: $result=
976: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
977: } else {
978: $result=
979: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
980: }
981: $skip=~s/\</\<\;/gs;
982: $skip=~s/\>/\>\;/gs;
983: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
984: return $result;
985: }
986:
987: sub end_definetag {
988: return '';
1.1 albertel 989: }
990:
991: sub start_block {
1.201 albertel 992: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 993:
994: my $result;
1.1 albertel 995:
1.339 albertel 996: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
997: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 998: my $code = $token->[2]->{'condition'};
1.201 albertel 999: if (defined($code)) {
1.137 albertel 1000: if (!$Apache::lonxml::default_homework_loaded) {
1001: &Apache::lonxml::default_homework_load($safeeval);
1002: }
1.131 albertel 1003: $result = &Apache::run::run($code,$safeeval);
1004: &Apache::lonxml::debug("block :$code: returned :$result:");
1005: } else {
1006: $result='1';
1007: }
1008: if ( ! $result ) {
1.201 albertel 1009: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1010: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1011: }
1012: $result='';
1013: } elsif ($target eq 'edit') {
1014: $result .=&Apache::edit::tag_start($target,$token);
1015: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1016: $token,40);
1017: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1018: } elsif ($target eq 'modified') {
1019: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1020: $safeeval,'condition');
1021: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1022: }
1.131 albertel 1023: return $result;
1.1 albertel 1024: }
1025:
1026: sub end_block {
1.167 www 1027: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1028: my $result;
1029: if ($target eq "edit") {
1030: $result.= &Apache::edit::tag_end($target,$token,'');
1031: }
1032: return $result;
1033: }
1034:
1035: sub start_languageblock {
1.201 albertel 1036: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1037:
1038: my $result;
1039:
1.339 albertel 1040: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1041: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1042: my $include = $token->[2]->{'include'};
1043: my $exclude = $token->[2]->{'exclude'};
1044: my %languages=&Apache::loncommon::display_languages();
1045: $result='1';
1046: if ($include) {
1047: $result='';
1048: foreach (split(/\,/,$include)) {
1049: if ($languages{$_}) { $result='1'; }
1050: }
1051: }
1052: if ($exclude) {
1053: foreach (split(/\,/,$exclude)) {
1054: if ($languages{$_}) { $result='0'; }
1055: }
1056: }
1057: if ( ! $result ) {
1058: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1059: $style);
1060: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1061: }
1062: $result='';
1.167 www 1063: } elsif ($target eq 'edit') {
1064: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1065: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1066: $token,40);
1.211 albertel 1067: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1068: $token,40);
1069: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1070: } elsif ($target eq 'modified') {
1071: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1072: $safeeval,'include',
1073: 'exclude');
1.167 www 1074: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1075: }
1076: return $result;
1077: }
1078:
1079: sub end_languageblock {
1.170 www 1080: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1081: my $result;
1.201 albertel 1082: if ($target eq "edit") {
1.170 www 1083: $result.= &Apache::edit::tag_end($target,$token,'');
1084: }
1085: return $result;
1086: }
1087:
1088: sub start_instructorcomment {
1.201 albertel 1089: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1090:
1091: my $result;
1092:
1.339 albertel 1093: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1094: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1095: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1096: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1097: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1098: $parser,$style);
1.170 www 1099: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1100: }
1101: $result='';
1102: } elsif ($target eq 'edit') {
1103: $result .=&Apache::edit::tag_start($target,$token);
1104: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1105: }
1106: return $result;
1107: }
1108:
1109: sub end_instructorcomment {
1.159 albertel 1110: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1111: my $result;
1112: if ($target eq "edit") {
1113: $result.= &Apache::edit::tag_end($target,$token,'');
1114: }
1115: return $result;
1.4 tsai 1116: }
1117:
1118: sub start_while {
1.326 albertel 1119: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1120:
1.160 albertel 1121: my $result;
1.339 albertel 1122: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1123: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1124: my $code = $token->[2]->{'condition'};
1.4 tsai 1125:
1.160 albertel 1126: push( @Apache::structuretags::whileconds, $code);
1127: if (!$Apache::lonxml::default_homework_loaded) {
1128: &Apache::lonxml::default_homework_load($safeeval);
1129: }
1130: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1131: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1132: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1133: push( @Apache::structuretags::whileline, $token->[5]);
1134: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1135: if ( $result ) {
1136: &Apache::lonxml::newparser($parser,\$bodytext);
1137: }
1138: } elsif ($target eq 'edit') {
1139: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1140: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1141: $token,40);
1142: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1143: } elsif ($target eq 'modified') {
1144: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1145: $safeeval,'condition');
1146: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1147: }
1.160 albertel 1148: return $result;
1.4 tsai 1149: }
1150:
1151: sub end_while {
1.159 albertel 1152: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1153: my $result;
1154:
1.339 albertel 1155: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1156: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1157: my $code = pop(@Apache::structuretags::whileconds);
1158: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1159: my $line = pop(@Apache::structuretags::whileline);
1160: my $return = &Apache::run::run($code,$safeeval);
1161: my $starttime=time;
1162: my $error=0;
1163: while ($return) {
1164: if (time-$starttime >
1165: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1166: #$return = 0; $error=1; next;
1.161 albertel 1167: }
1168: $result.=&Apache::scripttag::xmlparse($bodytext);
1169: $return = &Apache::run::run($code,$safeeval);
1170: }
1171: if ($error) {
1.270 albertel 1172: &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 1173: }
1174: } elsif ($target eq "edit") {
1175: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1176: }
1.160 albertel 1177: return $result;
1.1 albertel 1178: }
1.6 tsai 1179:
1.160 albertel 1180: # <randomlist show="1">
1.6 tsai 1181: # <tag1>..</tag1>
1182: # <tag2>..</tag2>
1183: # <tag3>..</tag3>
1.160 albertel 1184: # ...
1.6 tsai 1185: # </randomlist>
1186: sub start_randomlist {
1.326 albertel 1187: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1188: my $result;
1.339 albertel 1189: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1190: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1191: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1192: my $b_parser= HTML::LCParser->new(\$body);
1193: $b_parser->xml_mode(1);
1194: $b_parser->marked_sections(1);
1.159 albertel 1195: my $b_tok;
1196: my @randomlist;
1197: my $list_item;
1198: while($b_tok = $b_parser->get_token() ) {
1199: if($b_tok->[0] eq 'S') { # start tag
1200: # get content of the tag until matching end tag
1201: # get all text upto the matching tag
1202: # and push the content into @randomlist
1203: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1204: $b_parser);
1205: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1206: push(@randomlist,$list_item);
1207: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1208: # $list_item</b>";
1209: }
1210: if($b_tok->[0] eq 'T') { # text
1211: # what to do with text in between tags?
1212: # print "<b>TEXT $b_tok->[1]</b><br />";
1213: }
1214: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1215: # print "<b>END-TAG $b_tok->[1]</b><br />";
1216: # }
1217: }
1.303 albertel 1218: if (@randomlist) {
1219: my @idx_arr = (0 .. $#randomlist);
1220: &Apache::structuretags::shuffle(\@idx_arr);
1221: my $bodytext = '';
1222: my $show=$#randomlist;
1223: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1224: $showarg--;
1225: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1226: for(0 .. $show) {
1227: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1228: }
1229: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1230: }
1231: } elsif ($target eq 'edit' ) {
1232: $result .=&Apache::edit::tag_start($target,$token);
1233: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1234: $token,5);
1235: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1236: } elsif ($target eq 'modified' ) {
1237: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1238: $safeeval,'show');
1239: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1240: }
1241: return $result;
1.7 tsai 1242: }
1243:
1244: sub shuffle {
1245: my $a=shift;
1246: my $i;
1.303 albertel 1247: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1248: &Apache::response::pushrandomnumber();
1.159 albertel 1249: for($i=@$a;--$i;) {
1250: my $j=int(&Math::Random::random_uniform() * ($i+1));
1251: next if $i == $j;
1252: @$a[$i,$j] = @$a[$j,$i];
1253: }
1.251 albertel 1254: &Apache::response::poprandomnumber();
1.7 tsai 1255: }
1.6 tsai 1256: }
1257:
1258: sub end_randomlist {
1.159 albertel 1259: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1260: my $result;
1261: if ($target eq 'edit' ) {
1262: $result=&Apache::edit::tag_end($target,$token,
1263: 'End Randomly Parsed Block');
1264: }
1265: return $result;
1.6 tsai 1266: }
1267:
1.283 albertel 1268: sub ordered_show_check {
1269: my $last_part=$Apache::inputtags::partlist[-2];
1270: my $in_order=
1271: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1272: my $in_order_show=1;
1273: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1274: $in_order_show=&Apache::response::check_status($last_part);
1275: }
1276: return $in_order_show;
1277: }
1278:
1.11 albertel 1279: sub start_part {
1.326 albertel 1280: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1281: if (!$Apache::lonxml::metamode) {
1282: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1283: # duedates.
1284: }
1.159 albertel 1285: my $result='';
1286: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1287: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1288: $Apache::inputtags::part=$id;
1.177 albertel 1289: push(@Apache::inputtags::partlist,$id);
1290: @Apache::inputtags::response=();
1.159 albertel 1291: @Apache::inputtags::previous=();
1292: @Apache::inputtags::previous_version=();
1.241 albertel 1293: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1294: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1295: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1296: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1297: my $in_order_show=&ordered_show_check();
1.214 albertel 1298: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1299: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1300: &Apache::run::run($expression,$safeeval);
1.159 albertel 1301:
1302: if ($target eq 'meta') {
1.224 www 1303: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1304: return &Apache::response::mandatory_part_meta.
1305: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1306: } elsif ($target eq 'web' || $target eq 'grade' ||
1307: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1308: if ($hidden || !$in_order_show) {
1.326 albertel 1309: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1310: } else {
1311: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1312: push (@Apache::inputtags::status,$status);
1313: my $expression='$external::datestatus="'.$status.'";';
1314: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1315: &Apache::run::run($expression,$safeeval);
1.284 albertel 1316: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1317: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1318: }
1.216 albertel 1319: if (( $status eq 'CLOSED' ) ||
1320: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1321: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1322: ( $status eq 'BANNED') ||
1323: ( $status eq 'UNAVAILABLE') ||
1324: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1325: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1326: $style);
1.159 albertel 1327: if ( $target eq "web" ) {
1.211 albertel 1328: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1329: } elsif ( $target eq 'tex' ) {
1.284 albertel 1330: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1331: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1332: } else {
1.211 albertel 1333: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1334: }
1.159 albertel 1335: }
1336: } else {
1337: if ($target eq 'tex') {
1.284 albertel 1338: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1339: if ($$tagstack[-2] eq 'td') {
1340: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1341: } else {
1342: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1343: }
1.195 sakharuk 1344: }
1.159 albertel 1345: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1346: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1347: my @allkeys = split /,/,$allkeys;
1348: my $allow_print_points = 0;
1349: foreach my $partial_key (@allkeys) {
1.230 albertel 1350: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1351: if ($1 ne '0') {$allow_print_points=1;}
1352: }
1353: }
1.275 albertel 1354: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1355: if (defined($maxtries) && $maxtries < 0) {
1356: $allow_print_points=0;
1357: }
1.302 albertel 1358: if (lc($env{'course.'.$env{'request.course.id'}.
1359: '.disableexampointprint'}) eq 'yes') {
1360: $allow_print_points=0;
1361: }
1.222 sakharuk 1362: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1363: } elsif ($target eq 'web') {
1364: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1365: }
1366: }
1367: }
1368: } elsif ($target eq 'edit') {
1369: $result.=&Apache::edit::tag_start($target,$token);
1370: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1371: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1372: ' '.
1373: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1374: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1375: } elsif ($target eq 'modified') {
1376: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1377: $safeeval,'id','display');
1.159 albertel 1378: if ($constructtag) {
1.225 albertel 1379: #limiting ids to only letters numbers, and space
1.224 www 1380: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1381: $result = &Apache::edit::rebuild_tag($token);
1382: $result.=&Apache::edit::handle_insert();
1383: }
1384: }
1385: return $result;
1.11 albertel 1386: }
1387:
1388: sub end_part {
1.159 albertel 1389: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1390: &Apache::lonxml::debug("in end_part $target ");
1391: my $status=$Apache::inputtags::status['-1'];
1392: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1393: my $in_order_show=&ordered_show_check();
1.321 albertel 1394: my $result;
1395: if (!$Apache::lonxml::metamode) {
1396: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1397: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1398: }
1.312 albertel 1399: if ($target eq 'grade') {
1.249 albertel 1400: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1401: !$hidden && $in_order_show) {
1.311 foxr 1402: $result.=&Apache::inputtags::grade;
1.249 albertel 1403: } else {
1404: # move any submission data to .hidden
1405: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1406: }
1.283 albertel 1407: } elsif (($target eq 'web' || $target eq 'tex') &&
1408: !$hidden && $in_order_show) {
1.159 albertel 1409: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1410: $target);
1.212 albertel 1411: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1412: $gradestatus='';
1413: }
1.311 foxr 1414: $result.=$gradestatus;
1.265 sakharuk 1415: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1416: } elsif ($target eq 'edit') {
1.311 foxr 1417: $result.=&Apache::edit::end_table();
1.322 albertel 1418: } elsif ($target eq 'modified') {
1419: $result .= $token->[2];
1420: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 1421: }
1422: pop @Apache::inputtags::status;
1423: $Apache::inputtags::part='';
1.295 albertel 1424: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1425: return $result;
1.11 albertel 1426: }
1.1 albertel 1427:
1.25 albertel 1428: sub start_preduedate {
1.326 albertel 1429: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1430: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1431: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1432: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1433: if (!$Apache::lonhomework::scantronmode &&
1434: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1435: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1436: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1437: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1438: }
1.24 albertel 1439: }
1.159 albertel 1440: return '';
1.24 albertel 1441: }
1442:
1.25 albertel 1443: sub end_preduedate {
1.159 albertel 1444: return '';
1.24 albertel 1445: }
1446:
1.25 albertel 1447: sub start_postanswerdate {
1.326 albertel 1448: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1449: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade') {
1.300 albertel 1450: if ($Apache::lonhomework::scantronmode ||
1451: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.326 albertel 1452: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1453: }
1454: } elsif ($target eq 'tex') {
1.326 albertel 1455: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1456: }
1457: return '';
1.24 albertel 1458: }
1459:
1.25 albertel 1460: sub end_postanswerdate {
1.159 albertel 1461: return '';
1.24 albertel 1462: }
1463:
1.25 albertel 1464: sub start_notsolved {
1.326 albertel 1465: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1466: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1467: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1468: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1469: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1470: if ($gradestatus =~ /^correct/ &&
1471: &Apache::response::show_answer()) {
1.159 albertel 1472: &Apache::lonxml::debug("skipping");
1.326 albertel 1473: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1474: }
1.24 albertel 1475: }
1.159 albertel 1476: return '';
1.24 albertel 1477: }
1478:
1.25 albertel 1479: sub end_notsolved {
1.159 albertel 1480: return '';
1.24 albertel 1481: }
1482:
1483: sub start_solved {
1.326 albertel 1484: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1485: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1486: $target eq 'tex') {
1487: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1488: if ($gradestatus !~ /^correct/ ||
1489: !&Apache::response::show_answer()) {
1.326 albertel 1490: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1491: }
1.24 albertel 1492: }
1.159 albertel 1493: return '';
1.24 albertel 1494: }
1495:
1496: sub end_solved {
1.248 albertel 1497: return '';
1498: }
1499:
1500: sub start_problemtype {
1.326 albertel 1501: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1502: my $result;
1.339 albertel 1503: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1504: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1505: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1506: if (!defined($mode)) { $mode='show'; }
1507: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1508: my $found=0;
1509: foreach my $type (split(',',$for)) {
1510: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1511: }
1512: if ($mode eq 'show' && !$found) {
1.326 albertel 1513: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1514: }
1515: if ($mode eq 'hide' && $found) {
1.326 albertel 1516: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1517: }
1518: } elsif ($target eq 'edit') {
1519: $result .=&Apache::edit::tag_start($target,$token);
1520: $result.=&Apache::edit::select_arg('Mode:','mode',
1521: [['show','Show'],
1522: ['hide','Hide']]
1523: ,$token);
1524: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1525: [ ['exam','Exam/Quiz Problem'],
1526: ['survey','Survey'],
1527: ['problem','Homework Problem'] ]
1528: ,$token);
1529: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1530: } elsif ($target eq 'modified') {
1531: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1532: $safeeval,'mode','for');
1533: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1534: }
1535: return $result;
1536: }
1537:
1538: sub end_problemtype {
1.159 albertel 1539: return '';
1.24 albertel 1540: }
1.34 albertel 1541:
1542: sub start_startouttext {
1.159 albertel 1543: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1544: my @result=(''.'');
1545: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1546: return (@result);
1.34 albertel 1547: }
1.159 albertel 1548:
1.34 albertel 1549: sub end_startouttext {
1.326 albertel 1550: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1551: my $result='';
1552: my $text='';
1553:
1554: if ($target eq 'edit') {
1.326 albertel 1555: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1556: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1557: <td>".&mt('Delete:').
1.159 albertel 1558: &Apache::edit::deletelist($target,$token)
1559: ."</td>
1.42 albertel 1560: <td>".
1.159 albertel 1561: &Apache::edit::insertlist($target,$token).
1562: &Apache::edit::end_row().
1563: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1564: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1565: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1566: }
1567: if ($target eq 'modified') {
1.219 albertel 1568: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1569: }
1570: if ($target eq 'tex') {
1571: $result .= '\noindent ';
1572: }
1573: return $result;
1.34 albertel 1574: }
1.159 albertel 1575:
1.34 albertel 1576: sub start_endouttext {
1.159 albertel 1577: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1578: my $result='';
1579: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1580: if ($target eq "modified") {
1581: $result='<endouttext />'.
1582: &Apache::edit::handle_insertafter('startouttext'); }
1583: return $result;
1.34 albertel 1584: }
1.159 albertel 1585:
1.34 albertel 1586: sub end_endouttext {
1.159 albertel 1587: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1588: my @result=('','');
1589: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1590: return (@result);
1.34 albertel 1591: }
1.159 albertel 1592:
1.45 albertel 1593: sub delete_startouttext {
1.326 albertel 1594: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1595: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1596: my $text=$$parser['-1']->get_text("/endouttext");
1597: my $ntoken=$$parser['-1']->get_token();
1598: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1599: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1600: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1601: # they did the last time round
1602: &Apache::lonxml::increasedepth($ntoken);
1603: &Apache::lonxml::decreasedepth($ntoken);
1604: return 1;
1.193 www 1605: }
1606:
1607: sub start_simpleeditbutton {
1608: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1609: my $result='';
1.284 albertel 1610: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1611: ($target eq 'web') &&
1.330 albertel 1612: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1613: my $url=$env{'request.noversionuri'};
1.193 www 1614: $url=~s/\?.*$//;
1.278 albertel 1615: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1616: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1617: '<a href="'.$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 1618: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1619: }
1620: return $result;
1621: }
1622:
1623: sub end_simpleeditbutton {
1624: return '';
1.45 albertel 1625: }
1.34 albertel 1626:
1.1 albertel 1627: 1;
1628: __END__
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