Annotation of loncom/homework/structuretags.pm, revision 1.354
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.354 ! albertel 4: # $Id: structuretags.pm,v 1.353 2006/04/28 18:33:10 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 $result;
1.48 albertel 331: }
332:
1.65 albertel 333: sub initialize_storage {
1.353 albertel 334: undef(%Apache::lonhomework::results);
335: undef(%Apache::lonhomework::history);
1.159 albertel 336: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.353 albertel 337:
338: # anonymous users (CODEd exams) have no data
339: if ($name eq 'anonymous'
340: && !defined($domain)) {
341: return;
342: }
343:
1.333 albertel 344: if ($env{'request.state'} eq 'construct'
345: || $symb eq ''
346: || $Apache::lonhomework::type eq 'practice') {
347:
348: my $namespace = $symb || $env{'request.uri'};
349: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
350: $env{'form.resetdata'} eq &mt('New Problem Variation') ||
351: $env{'form.newrandomization'} eq &mt('New Randomization')) {
352: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
353: &Apache::lonxml::debug("Attempt reset");
354: }
1.159 albertel 355: %Apache::lonhomework::history=
1.333 albertel 356: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 357: my ($temp)=keys %Apache::lonhomework::history ;
358: &Apache::lonxml::debug("Return message of $temp");
359: } else {
360: %Apache::lonhomework::history=
361: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
362: }
1.353 albertel 363:
1.159 albertel 364: #ignore error conditions
1.67 albertel 365: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 366: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 367: }
368:
369: # -------------------------------------------------------------finalize_storage
370: # Stores away the result has to a student's environment
371: # checks form.grade_ for specific values, other wises stores
372: # to the running users environment
1.285 raeburn 373: # Will increment totals for attempts, students, and corrects
374: # if running user has student role.
1.65 albertel 375: sub finalize_storage {
1.159 albertel 376: my $result;
1.289 albertel 377: if (%Apache::lonhomework::results) {
1.323 albertel 378: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
379: delete(@Apache::lonhomework::results{@remove});
1.159 albertel 380: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.333 albertel 381: if ($env{'request.state'} eq 'construct'
382: || $symb eq ''
383: || $Apache::lonhomework::type eq 'practice') {
384: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 385: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 386: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 387: $namespace,'',$domain,$name);
1.159 albertel 388: &Apache::lonxml::debug('Construct Store return message:'.$result);
389: } else {
390: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
391: $symb,$courseid,$domain,$name);
392: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 393: if ($env{'request.role'} =~/^st/) {
394: &store_aggregates($symb,$courseid);
395: }
1.159 albertel 396: }
1.323 albertel 397: } else {
398: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 399: }
1.159 albertel 400: return $result;
1.65 albertel 401: }
1.289 albertel 402: use Data::Dumper;
1.65 albertel 403:
1.285 raeburn 404: # -------------------------------------------------------------store_aggregates
405: # Sends hash of values to be incremented in nohist_resourcetracker.db
406: # for the course. Increments total number of attempts, unique students
407: # and corrects for each part for an instance of a problem, as appropriate.
408: sub store_aggregates {
409: my ($symb,$courseid) = @_;
1.286 albertel 410: my %aggregate;
411: my @parts;
1.288 albertel 412: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
413: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 414: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 415: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 416: push(@parts, $1);
1.285 raeburn 417: }
418: }
1.286 albertel 419: foreach my $part (@parts) {
420: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
421: eq 'APPROX_ANS' ||
422: $Apache::lonhomework::results{'resource.'.$part.'.award'}
423: eq 'EXACT_ANS') {
1.287 albertel 424: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 425: }
1.286 albertel 426: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 427: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 428: } else {
1.293 albertel 429: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 430: if ($last_reset) {
1.293 albertel 431: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 432: $aggregate{$symb."\0".$part."\0users"} = 1;
433: }
434: }
1.285 raeburn 435: }
1.287 albertel 436: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 437: }
1.292 raeburn 438: if (keys (%aggregate) > 0) {
1.289 albertel 439: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 440: $cdomain,$cname);
441: }
442: }
1.289 albertel 443:
1.65 albertel 444: sub checkout_msg {
1.211 albertel 445: my %lt=&Apache::lonlocal::texthash(
446: 'resource'=>'The resource needs to be checked out',
447: '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.',
448: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
449: 'checkout'=>'Check out Exam for Viewing',
450: 'checkout?'=>'Check out Exam?');
1.352 albertel 451: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 452: return (<<ENDCHECKOUT);
1.211 albertel 453: <h2>$lt{'resource'}</h2>
454: <p>$lt{'id_expln'}</p>
455: <font color="red">
456: <p>$lt{'warning'}</p>
1.91 albertel 457: </font>
1.352 albertel 458: <form name="checkout" method="POST" action="$uri">
1.91 albertel 459: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 460: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 461: </form>
462: ENDCHECKOUT
463: }
464:
1.252 albertel 465: sub firstaccess_msg {
1.253 albertel 466: my ($time,$symb)=@_;
467: my ($map)=&Apache::lonnet::decode_symb($symb);
468: my $foldertitle=&Apache::lonnet::gettitle($map);
469: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.352 albertel 470: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.252 albertel 471: return (<<ENDCHECKOUT);
1.253 albertel 472: <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>
1.352 albertel 473: <form name="markaccess" method="POST" action="$uri">
1.252 albertel 474: <input type="hidden" name="markaccess" value="yes" />
475: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
476: </form>
477: ENDCHECKOUT
478: }
479:
1.204 albertel 480: sub init_problem_globals {
481: my ($type)=@_;
482: #initialize globals
1.308 foxr 483: # For problems, we start out in part 0 (outside a <part> tag).
484: # and part 0 is used to describe the main body of the <problem>
485: #
1.204 albertel 486: if ($type eq 'problem') {
487: $Apache::inputtags::part='0';
488: @Apache::inputtags::partlist=('0');
1.266 albertel 489: $Apache::lonhomework::problemstatus=&get_problem_status('0');
490: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 491:
1.266 albertel 492: } elsif ($type eq 'library') {
1.204 albertel 493: $Apache::inputtags::part='';
494: @Apache::inputtags::partlist=();
495: $Apache::lonhomework::problemstatus='';
1.266 albertel 496: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 497:
1.304 albertel 498: } elsif ($type eq 'Task') {
499: $Apache::inputtags::part='0';
500: @Apache::inputtags::partlist=('0');
501: $Apache::lonhomework::problemstatus='';
502: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 503: }
504: @Apache::inputtags::responselist = ();
505: @Apache::inputtags::importlist = ();
506: @Apache::inputtags::previous=();
507: @Apache::inputtags::previous_version=();
508: $Apache::structuretags::printanswer='No';
509: @Apache::structuretags::whileconds=();
510: @Apache::structuretags::whilebody=();
511: @Apache::structuretags::whileline=();
512: $Apache::lonhomework::scantronmode=0;
513: undef($Apache::lonhomework::name);
514:
515: }
516:
517: sub reset_problem_globals {
518: my ($type)=@_;
519: undef(%Apache::lonhomework::history);
520: undef(%Apache::lonhomework::results);
521: undef($Apache::inputtags::part);
1.208 albertel 522: #don't undef this, lonhomework.pm takes care of this, we use this to
523: #detect if we try to do 2 problems in one file
524: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 525: undef($Apache::lonhomework::name);
526: }
527:
1.241 albertel 528: sub set_problem_state {
1.240 albertel 529: my ($part)=@_;
1.284 albertel 530: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 531: $Apache::lonhomework::history{"resource.$part.solved"}=
532: 'correct_by_student';
533: }
534: }
535:
1.241 albertel 536: sub get_problem_status {
537: my ($part)=@_;
1.267 albertel 538: my $problem_status;
1.284 albertel 539: if ($env{'request.state'} eq 'construct' &&
540: defined($env{'form.problemstatus'})) {
541: $problem_status=$env{'form.problemstatus'};
1.267 albertel 542: } else {
543: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
544: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 545: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 546: }
547: return $problem_status;
548: }
549:
1.9 albertel 550: sub start_problem {
1.326 albertel 551: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 552:
1.311 foxr 553: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 554: if (!$Apache::lonxml::metamode) {
555: &Apache::lonxml::startredirection();
556: }
1.311 foxr 557:
1.308 foxr 558: # Problems don't nest and we don't allow more than one <problem> in
559: # a .problem file.
560: #
1.184 albertel 561: if ( $Apache::inputtags::part ne '' ||
562: $Apache::lonhomework::parsing_a_problem) {
563: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 564: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 565: return '';
566: }
1.184 albertel 567:
568: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 569: &init_problem_globals('problem');
1.166 albertel 570:
1.284 albertel 571: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 572: $Apache::lonhomework::scantronmode=1;
573: }
1.161 albertel 574:
1.246 albertel 575: &initialize_storage();
1.159 albertel 576: if ($target ne 'analyze') {
577: if ($target eq 'web') {
578: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 579: }
1.284 albertel 580: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 581: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 582: if (($env{'request.state'} eq 'construct') &&
583: defined($env{'form.problemtype'})) {
584: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 585: }
1.332 albertel 586: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 587: }
1.164 albertel 588: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 589: my $uri=$env{'request.uri'};
1.159 albertel 590: if ($uri=~/\.(\w+)$/) {
591: $Apache::lonhomework::type=$1;
592: &Apache::lonxml::debug("Using type of $1");
593: } else {
594: $Apache::lonhomework::type='problem';
595: &Apache::lonxml::debug("Using default type, problem, :$uri:");
596: }
1.87 albertel 597: }
1.301 albertel 598: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 599:
1.159 albertel 600: #added vars to the scripting enviroment
1.213 albertel 601: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 602: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 603: &Apache::run::run($expression,$safeeval);
1.159 albertel 604: my $status;
605: my $accessmsg;
606:
1.343 albertel 607: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 608: my ($result,$form_tag_start);
1.354 ! albertel 609: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
! 610: || $target eq 'edit') {
1.350 albertel 611: ($result,$form_tag_start) =
612: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
613: $name);
614: }
615:
1.284 albertel 616: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 617:
618: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
619: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
620: $target eq 'tex') {
621: #handle exam checkout
622: if ($Apache::lonhomework::type eq 'exam') {
623: my $token=
624: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 625: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 626: $token=&Apache::lonxml::maketoken();
627: $Apache::lonhomework::history{"resource.0.outtoken"}=
628: $token;
629: }
1.343 albertel 630: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 631: }
1.284 albertel 632: if ($env{'form.markaccess'}) {
1.252 albertel 633: &Apache::lonnet::set_first_access('map');
634: }
1.159 albertel 635: #handle rand seed in construction space
636: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 637: my ($symb)=&Apache::lonxml::whichuser();
1.333 albertel 638: if ($env{'request.state'} ne "construct" &&
639: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 640: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
641: $rndseed.'" />'.
642: '<input type="submit" name="resetdata"
1.334 albertel 643: value="'.&mt('New Problem Variation').'" />';
644: if (exists($env{'form.username'})) {
645: $form_tag_start.=
1.164 albertel 646: '<input type="hidden" name="username"
1.284 albertel 647: value="'.$env{'form.username'}.'" />';
1.334 albertel 648: }
1.333 albertel 649: if ($env{'request.role.adv'}) {
1.267 albertel 650: $form_tag_start.=
1.300 albertel 651: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 652: if (defined($env{'form.showallfoils'})) {
1.267 albertel 653: $form_tag_start.='checked="on"';
654: }
1.300 albertel 655: $form_tag_start.= ' />'.&mt(' Show All Foils').
656: '</label>';
1.267 albertel 657: }
658: $form_tag_start.='<hr />';
1.162 albertel 659: }
1.324 albertel 660:
661: ($status,$accessmsg,my $slot_name,my $slot) =
662: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 663: push (@Apache::inputtags::status,$status);
1.324 albertel 664:
1.159 albertel 665: my $expression='$external::datestatus="'.$status.'";';
666: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
667: &Apache::run::run($expression,$safeeval);
668: &Apache::lonxml::debug("Got $status");
1.324 albertel 669:
1.159 albertel 670: if (( $status eq 'CLOSED' ) ||
671: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 672: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 673: ( $status eq 'BANNED') ||
1.216 albertel 674: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 675: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 676: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 677: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
678: $style);
1.159 albertel 679: if ( $target eq "web" ) {
1.343 albertel 680: my $msg;
1.159 albertel 681: if ($status eq 'UNAVAILABLE') {
1.245 albertel 682: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 683: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 684: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 685: }
1.216 albertel 686: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 687: $msg.='The problem '.$accessmsg;
688: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 689: $msg.=&checkout_msg();
1.252 albertel 690: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 691: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 692: } elsif ($status eq 'NOT_IN_A_SLOT') {
693: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 694: }
695: $result.=$msg.'<br />';
696: } elsif ($target eq 'tex') {
1.332 albertel 697: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
698: : '\begin{minipage}{\textwidth}';
699: $result.='\begin{document}\noindent \vskip 1 mm '.
700: $startminipage.'\vskip 0 mm';
1.159 albertel 701: if ($status eq 'UNAVAILABLE') {
1.211 albertel 702: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 703: } else {
1.211 albertel 704: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 705: }
706: }
1.324 albertel 707: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 708: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
709: $style);
1.324 albertel 710: if ($target eq 'web') {
711: $result .= &Apache::bridgetask::proctor_validation_screen();
712: } elsif ($target eq 'grade') {
713: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
714: 'problem');
715: }
1.159 albertel 716: } elsif ($target eq 'web') {
1.343 albertel 717: $result.="\n $form_tag_start".
1.227 albertel 718: '<input type="hidden" name="submitted" value="yes" />';
719: # create a page header and exit
1.284 albertel 720: if ($env{'request.state'} eq "construct") {
721: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 722: }
723: # if we are viewing someone else preserve that info
1.284 albertel 724: if (defined $env{'form.grade_symb'}) {
1.227 albertel 725: foreach my $field ('symb','courseid','domain','username') {
726: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 727: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 728: }
729: }
730: } elsif ($target eq 'tex') {
1.319 foxr 731: $result .= 'INSERTTEXFRONTMATTERHERE';
732:
1.99 sakharuk 733: }
1.159 albertel 734: } elsif ($target eq 'edit') {
1.343 albertel 735: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 736: $Apache::lonxml::warnings_error_header=
737: &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 738: my $temp=&Apache::edit::insertlist($target,$token);
739: $result.=$temp;
740: } elsif ($target eq 'modified') {
741: $result=$token->[4];
742: $result.=&Apache::edit::handle_insert();
743: } else {
744: # page_start returned a starting result, delete it if we don't need it
745: $result = '';
1.99 sakharuk 746: }
1.159 albertel 747: return $result;
1.9 albertel 748: }
749:
750: sub end_problem {
1.159 albertel 751: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 752: my $result;
1.310 foxr 753:
1.321 albertel 754: if (!$Apache::lonxml::metamode) {
755: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 756: $Apache::lonxml::post_evaluate=0;
1.321 albertel 757: }
1.319 foxr 758:
759: if ($target eq 'tex') {
1.321 albertel 760:
761: # Figure out the front matter and replace the
762: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
763: # this in end_problem because whether or not we display due
764: # dates depends on whether due dates have already been
765: # displayed in the problem parts.
766:
1.319 foxr 767: my $frontmatter = '';
768: my $startminipage = '';
769: if (not $env{'form.problem_split'}=~/yes/) {
770: $startminipage = '\begin{minipage}{\textwidth}';
771: }
772: my $id = $Apache::inputtags::part;
773: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
774: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
775: my @packages = split /,/,$packages;
776: my $allow_print_points = 0;
777: foreach my $partial_key (@packages) {
778: if ($partial_key=~m/^part_0$/) {
779: $allow_print_points=1;
780: }
781: }
782: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
783: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
784: if (lc($env{'course.'.$env{'request.course.id'}.
785: '.disableexampointprint'}) eq 'yes') {
786: $allow_print_points=0;
787: }
788: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
789: 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 ';
790: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
791: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
792:
793: # Figure out what the due date is and if we need to print
794: # it in the problem header. We have been logging the
795: # last due date written to file.
796:
797: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
798: my $duedate = POSIX::strftime("%c",localtime($duetime));
799: my $temp_file;
800: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
801:
802: # Figure out what the last printed due date is or set it
803: # to the epoch if no duedates have been printed.
804:
805: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
806: if (-e $filename) {
807: $temp_file = Apache::File->new($filename);
808: my @due_file = <$temp_file>;
809: $due_file_content = $due_file[$#due_file];
810: chomp $due_file_content;
811: }
812:
813: # We display the due date iff it is not the same as the last
814: # duedate in problem header ($due_file_content), and
815: # none of our parts displayed a duedate.
816: #
817: my $parts_with_displayduedate;
818: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
819: $parts_with_displayduedate =
820: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
821: } else {
822: $parts_with_displayduedate = 0;
823: }
824: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
825: $temp_file = Apache::File->new('>'.$filename);
826: print $temp_file "$duetime\n";
827: if (not $env{'request.symb'} =~ m/\.page_/) {
828: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
829: $frontmatter .= $begin_doc.
830: '\textit{Due date: '.$duedate.'} '.$toc_line;
831: } else {
832: $frontmatter.= $begin_doc.$toc_line;
833: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
834: }
835: } else {
836: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
837: }
838: } else {
839: if (not $env{'request.symb'} =~ m/\.page_/) {
840: $frontmatter .= $begin_doc.$toc_line;
841: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
842: } else {
843: $frontmatter .= '\vskip 1mm \\\\\\\\';
844: }
845: }
846: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
847: }
848:
1.159 albertel 849: my $status=$Apache::inputtags::status['-1'];
850: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
851: $target eq 'tex') {
1.249 albertel 852: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 853: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 854: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
855: &Apache::inputtags::grade;
1.324 albertel 856: } elsif ($status eq 'NEEDS_CHECKIN') {
857: # no need to grade, and don't want to hide data
1.249 albertel 858: } else {
859: # move any submission data to .hidden
860: &Apache::inputtags::hidealldata($Apache::inputtags::part);
861: }
1.159 albertel 862: } elsif ( ($target eq 'web' || $target eq 'tex') &&
863: $Apache::inputtags::part eq '0' &&
1.252 albertel 864: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 865: # if part is zero, no <part>s existed, so we need show the current
866: # grading status
867: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
868: $result.= $gradestatus;
869: }
870: if (
1.284 albertel 871: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 872: ($target eq 'answer') || ($target eq 'tex')
873: ) {
1.227 albertel 874: if ($target ne 'tex' &&
1.284 albertel 875: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 876: $result.="</form>";
1.348 albertel 877: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 878: }
879: if ($target eq 'web') {
1.346 albertel 880: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 881: } elsif ($target eq 'tex') {
1.178 sakharuk 882: my $endminipage = '';
1.284 albertel 883: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 884: $endminipage = '\end{minipage}';
885: }
1.284 albertel 886: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 887: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 888: } else {
1.262 sakharuk 889: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 890: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 891: $result .= $endminipage.'\end{document} ';
892: } else {
893: $result .= '';
894: }
1.159 albertel 895: }
896: }
897: }
898: if ($target eq 'grade') {
899: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
900: &finalize_storage();
901: }
1.284 albertel 902: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
903: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 904: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 905: # normally we get it from above, but in CSTR
1.172 albertel 906: # we always show answer mode too.
1.159 albertel 907: }
908: } elsif ($target eq 'meta') {
909: if ($Apache::inputtags::part eq '0') {
1.179 albertel 910: @Apache::inputtags::response=();
1.159 albertel 911: $result=&Apache::response::mandatory_part_meta;
912: }
1.215 albertel 913: $result.=&Apache::response::meta_part_order();
1.258 albertel 914: $result.=&Apache::response::meta_response_order();
1.159 albertel 915: } elsif ($target eq 'edit') {
916: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 917: $result .= &problem_edit_footer();
1.320 albertel 918: } elsif ($target eq 'modified') {
919: $result .= $token->[2];
920: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 921: }
1.155 albertel 922:
1.284 albertel 923: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 924: &Apache::inputtags::check_for_duplicate_ids();
925: }
1.204 albertel 926:
927: &reset_problem_globals('problem');
1.159 albertel 928:
929: return $result;
1.48 albertel 930: }
931:
1.108 albertel 932:
1.48 albertel 933: sub start_library {
1.159 albertel 934: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 935: my ($result,$form_tag_start);
1.244 albertel 936: if ($$tagstack[0] eq 'library') {
937: &init_problem_globals('library');
938: $Apache::lonhomework::type='problem';
939: }
1.159 albertel 940: if ($target eq 'edit') {
1.343 albertel 941: ($result,$form_tag_start)=
942: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
943: 'Edit');
944: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 945: my $temp=&Apache::edit::insertlist($target,$token);
946: $result.=$temp;
947: } elsif ($target eq 'modified') {
948: $result=$token->[4];
949: $result.=&Apache::edit::handle_insert();
1.340 albertel 950: } elsif (($target eq 'web' || $target eq 'webgrade')
951: && $$tagstack[0] eq 'library'
952: && $env{'request.state'} eq "construct" ) {
1.159 albertel 953: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 954: ($result,$form_tag_start)=
955: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
956: $name);
1.159 albertel 957: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 958: $result.=" \n $form_tag_start".
1.159 albertel 959: '<input type="hidden" name="submitted" value="yes" />';
960: $result.=&problem_web_to_edit_header($rndseed);
961: }
962: return $result;
1.48 albertel 963: }
964:
965: sub end_library {
1.159 albertel 966: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
967: my $result='';
968: if ($target eq 'edit') {
969: $result=&problem_edit_footer();
970: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 971: $env{'request.state'} eq "construct") {
1.349 albertel 972: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 973: }
1.204 albertel 974: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 975: return $result;
1.197 www 976: }
977:
978: sub start_definetag {
1.326 albertel 979: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 980:
981: my $result;
982:
983: my $name = $token->[2]->{'name'};
1.326 albertel 984: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 985: if ($name=~/^\//) {
986: $result=
987: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
988: } else {
989: $result=
990: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
991: }
992: $skip=~s/\</\<\;/gs;
993: $skip=~s/\>/\>\;/gs;
994: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
995: return $result;
996: }
997:
998: sub end_definetag {
999: return '';
1.1 albertel 1000: }
1001:
1002: sub start_block {
1.201 albertel 1003: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1004:
1005: my $result;
1.1 albertel 1006:
1.339 albertel 1007: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1008: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1009: my $code = $token->[2]->{'condition'};
1.201 albertel 1010: if (defined($code)) {
1.137 albertel 1011: if (!$Apache::lonxml::default_homework_loaded) {
1012: &Apache::lonxml::default_homework_load($safeeval);
1013: }
1.131 albertel 1014: $result = &Apache::run::run($code,$safeeval);
1015: &Apache::lonxml::debug("block :$code: returned :$result:");
1016: } else {
1017: $result='1';
1018: }
1019: if ( ! $result ) {
1.201 albertel 1020: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1021: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1022: }
1023: $result='';
1024: } elsif ($target eq 'edit') {
1025: $result .=&Apache::edit::tag_start($target,$token);
1026: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1027: $token,40);
1028: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1029: } elsif ($target eq 'modified') {
1030: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1031: $safeeval,'condition');
1032: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1033: }
1.131 albertel 1034: return $result;
1.1 albertel 1035: }
1036:
1037: sub end_block {
1.167 www 1038: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1039: my $result;
1040: if ($target eq "edit") {
1041: $result.= &Apache::edit::tag_end($target,$token,'');
1042: }
1043: return $result;
1044: }
1045:
1046: sub start_languageblock {
1.201 albertel 1047: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1048:
1049: my $result;
1050:
1.339 albertel 1051: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1052: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1053: my $include = $token->[2]->{'include'};
1054: my $exclude = $token->[2]->{'exclude'};
1055: my %languages=&Apache::loncommon::display_languages();
1056: $result='1';
1057: if ($include) {
1058: $result='';
1059: foreach (split(/\,/,$include)) {
1060: if ($languages{$_}) { $result='1'; }
1061: }
1062: }
1063: if ($exclude) {
1064: foreach (split(/\,/,$exclude)) {
1065: if ($languages{$_}) { $result='0'; }
1066: }
1067: }
1068: if ( ! $result ) {
1069: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1070: $style);
1071: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1072: }
1073: $result='';
1.167 www 1074: } elsif ($target eq 'edit') {
1075: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1076: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1077: $token,40);
1.211 albertel 1078: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1079: $token,40);
1080: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1081: } elsif ($target eq 'modified') {
1082: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1083: $safeeval,'include',
1084: 'exclude');
1.167 www 1085: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1086: }
1087: return $result;
1088: }
1089:
1090: sub end_languageblock {
1.170 www 1091: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1092: my $result;
1.201 albertel 1093: if ($target eq "edit") {
1.170 www 1094: $result.= &Apache::edit::tag_end($target,$token,'');
1095: }
1096: return $result;
1097: }
1098:
1099: sub start_instructorcomment {
1.201 albertel 1100: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1101:
1102: my $result;
1103:
1.339 albertel 1104: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1105: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1106: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1107: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1108: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1109: $parser,$style);
1.170 www 1110: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1111: }
1112: $result='';
1113: } elsif ($target eq 'edit') {
1114: $result .=&Apache::edit::tag_start($target,$token);
1115: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1116: }
1117: return $result;
1118: }
1119:
1120: sub end_instructorcomment {
1.159 albertel 1121: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1122: my $result;
1123: if ($target eq "edit") {
1124: $result.= &Apache::edit::tag_end($target,$token,'');
1125: }
1126: return $result;
1.4 tsai 1127: }
1128:
1129: sub start_while {
1.326 albertel 1130: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1131:
1.160 albertel 1132: my $result;
1.339 albertel 1133: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1134: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1135: my $code = $token->[2]->{'condition'};
1.4 tsai 1136:
1.160 albertel 1137: push( @Apache::structuretags::whileconds, $code);
1138: if (!$Apache::lonxml::default_homework_loaded) {
1139: &Apache::lonxml::default_homework_load($safeeval);
1140: }
1141: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1142: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1143: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1144: push( @Apache::structuretags::whileline, $token->[5]);
1145: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1146: if ( $result ) {
1147: &Apache::lonxml::newparser($parser,\$bodytext);
1148: }
1149: } elsif ($target eq 'edit') {
1150: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1151: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1152: $token,40);
1153: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1154: } elsif ($target eq 'modified') {
1155: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1156: $safeeval,'condition');
1157: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1158: }
1.160 albertel 1159: return $result;
1.4 tsai 1160: }
1161:
1162: sub end_while {
1.159 albertel 1163: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1164: my $result;
1165:
1.339 albertel 1166: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1167: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1168: my $code = pop(@Apache::structuretags::whileconds);
1169: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1170: my $line = pop(@Apache::structuretags::whileline);
1171: my $return = &Apache::run::run($code,$safeeval);
1172: my $starttime=time;
1173: my $error=0;
1174: while ($return) {
1175: if (time-$starttime >
1176: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1177: #$return = 0; $error=1; next;
1.161 albertel 1178: }
1179: $result.=&Apache::scripttag::xmlparse($bodytext);
1180: $return = &Apache::run::run($code,$safeeval);
1181: }
1182: if ($error) {
1.270 albertel 1183: &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 1184: }
1185: } elsif ($target eq "edit") {
1186: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1187: }
1.160 albertel 1188: return $result;
1.1 albertel 1189: }
1.6 tsai 1190:
1.160 albertel 1191: # <randomlist show="1">
1.6 tsai 1192: # <tag1>..</tag1>
1193: # <tag2>..</tag2>
1194: # <tag3>..</tag3>
1.160 albertel 1195: # ...
1.6 tsai 1196: # </randomlist>
1197: sub start_randomlist {
1.326 albertel 1198: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1199: my $result;
1.339 albertel 1200: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1201: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1202: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1203: my $b_parser= HTML::LCParser->new(\$body);
1204: $b_parser->xml_mode(1);
1205: $b_parser->marked_sections(1);
1.159 albertel 1206: my $b_tok;
1207: my @randomlist;
1208: my $list_item;
1209: while($b_tok = $b_parser->get_token() ) {
1210: if($b_tok->[0] eq 'S') { # start tag
1211: # get content of the tag until matching end tag
1212: # get all text upto the matching tag
1213: # and push the content into @randomlist
1214: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1215: $b_parser);
1216: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1217: push(@randomlist,$list_item);
1218: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1219: # $list_item</b>";
1220: }
1221: if($b_tok->[0] eq 'T') { # text
1222: # what to do with text in between tags?
1223: # print "<b>TEXT $b_tok->[1]</b><br />";
1224: }
1225: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1226: # print "<b>END-TAG $b_tok->[1]</b><br />";
1227: # }
1228: }
1.303 albertel 1229: if (@randomlist) {
1230: my @idx_arr = (0 .. $#randomlist);
1231: &Apache::structuretags::shuffle(\@idx_arr);
1232: my $bodytext = '';
1233: my $show=$#randomlist;
1234: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1235: $showarg--;
1236: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1237: for(0 .. $show) {
1238: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1239: }
1240: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1241: }
1242: } elsif ($target eq 'edit' ) {
1243: $result .=&Apache::edit::tag_start($target,$token);
1244: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1245: $token,5);
1246: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1247: } elsif ($target eq 'modified' ) {
1248: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1249: $safeeval,'show');
1250: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1251: }
1252: return $result;
1.7 tsai 1253: }
1254:
1255: sub shuffle {
1256: my $a=shift;
1257: my $i;
1.303 albertel 1258: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1259: &Apache::response::pushrandomnumber();
1.159 albertel 1260: for($i=@$a;--$i;) {
1261: my $j=int(&Math::Random::random_uniform() * ($i+1));
1262: next if $i == $j;
1263: @$a[$i,$j] = @$a[$j,$i];
1264: }
1.251 albertel 1265: &Apache::response::poprandomnumber();
1.7 tsai 1266: }
1.6 tsai 1267: }
1268:
1269: sub end_randomlist {
1.159 albertel 1270: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1271: my $result;
1272: if ($target eq 'edit' ) {
1273: $result=&Apache::edit::tag_end($target,$token,
1274: 'End Randomly Parsed Block');
1275: }
1276: return $result;
1.6 tsai 1277: }
1278:
1.283 albertel 1279: sub ordered_show_check {
1280: my $last_part=$Apache::inputtags::partlist[-2];
1281: my $in_order=
1282: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1283: my $in_order_show=1;
1284: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1285: $in_order_show=&Apache::response::check_status($last_part);
1286: }
1287: return $in_order_show;
1288: }
1289:
1.11 albertel 1290: sub start_part {
1.326 albertel 1291: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1292: if (!$Apache::lonxml::metamode) {
1293: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1294: # duedates.
1295: }
1.159 albertel 1296: my $result='';
1297: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1298: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1299: $Apache::inputtags::part=$id;
1.177 albertel 1300: push(@Apache::inputtags::partlist,$id);
1301: @Apache::inputtags::response=();
1.159 albertel 1302: @Apache::inputtags::previous=();
1303: @Apache::inputtags::previous_version=();
1.241 albertel 1304: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1305: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1306: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1307: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1308: my $in_order_show=&ordered_show_check();
1.214 albertel 1309: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1310: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1311: &Apache::run::run($expression,$safeeval);
1.159 albertel 1312:
1313: if ($target eq 'meta') {
1.224 www 1314: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1315: return &Apache::response::mandatory_part_meta.
1316: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1317: } elsif ($target eq 'web' || $target eq 'grade' ||
1318: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1319: if ($hidden || !$in_order_show) {
1.326 albertel 1320: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1321: } else {
1322: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1323: push (@Apache::inputtags::status,$status);
1324: my $expression='$external::datestatus="'.$status.'";';
1325: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1326: &Apache::run::run($expression,$safeeval);
1.284 albertel 1327: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1328: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1329: }
1.216 albertel 1330: if (( $status eq 'CLOSED' ) ||
1331: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1332: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1333: ( $status eq 'BANNED') ||
1334: ( $status eq 'UNAVAILABLE') ||
1335: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1336: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1337: $style);
1.159 albertel 1338: if ( $target eq "web" ) {
1.211 albertel 1339: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1340: } elsif ( $target eq 'tex' ) {
1.284 albertel 1341: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1342: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1343: } else {
1.211 albertel 1344: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1345: }
1.159 albertel 1346: }
1347: } else {
1348: if ($target eq 'tex') {
1.284 albertel 1349: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1350: if ($$tagstack[-2] eq 'td') {
1351: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1352: } else {
1353: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1354: }
1.195 sakharuk 1355: }
1.159 albertel 1356: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1357: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1358: my @allkeys = split /,/,$allkeys;
1359: my $allow_print_points = 0;
1360: foreach my $partial_key (@allkeys) {
1.230 albertel 1361: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1362: if ($1 ne '0') {$allow_print_points=1;}
1363: }
1364: }
1.275 albertel 1365: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1366: if (defined($maxtries) && $maxtries < 0) {
1367: $allow_print_points=0;
1368: }
1.302 albertel 1369: if (lc($env{'course.'.$env{'request.course.id'}.
1370: '.disableexampointprint'}) eq 'yes') {
1371: $allow_print_points=0;
1372: }
1.222 sakharuk 1373: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1374: } elsif ($target eq 'web') {
1375: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1376: }
1377: }
1378: }
1379: } elsif ($target eq 'edit') {
1380: $result.=&Apache::edit::tag_start($target,$token);
1381: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1382: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1383: ' '.
1384: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1385: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1386: } elsif ($target eq 'modified') {
1387: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1388: $safeeval,'id','display');
1.159 albertel 1389: if ($constructtag) {
1.225 albertel 1390: #limiting ids to only letters numbers, and space
1.224 www 1391: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1392: $result = &Apache::edit::rebuild_tag($token);
1393: $result.=&Apache::edit::handle_insert();
1394: }
1395: }
1396: return $result;
1.11 albertel 1397: }
1398:
1399: sub end_part {
1.159 albertel 1400: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1401: &Apache::lonxml::debug("in end_part $target ");
1402: my $status=$Apache::inputtags::status['-1'];
1403: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1404: my $in_order_show=&ordered_show_check();
1.321 albertel 1405: my $result;
1406: if (!$Apache::lonxml::metamode) {
1407: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1408: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1409: }
1.312 albertel 1410: if ($target eq 'grade') {
1.249 albertel 1411: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1412: !$hidden && $in_order_show) {
1.311 foxr 1413: $result.=&Apache::inputtags::grade;
1.249 albertel 1414: } else {
1415: # move any submission data to .hidden
1416: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1417: }
1.283 albertel 1418: } elsif (($target eq 'web' || $target eq 'tex') &&
1419: !$hidden && $in_order_show) {
1.159 albertel 1420: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1421: $target);
1.212 albertel 1422: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1423: $gradestatus='';
1424: }
1.311 foxr 1425: $result.=$gradestatus;
1.265 sakharuk 1426: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1427: } elsif ($target eq 'edit') {
1.311 foxr 1428: $result.=&Apache::edit::end_table();
1.322 albertel 1429: } elsif ($target eq 'modified') {
1430: $result .= $token->[2];
1431: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 1432: }
1433: pop @Apache::inputtags::status;
1434: $Apache::inputtags::part='';
1.295 albertel 1435: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1436: return $result;
1.11 albertel 1437: }
1.1 albertel 1438:
1.25 albertel 1439: sub start_preduedate {
1.326 albertel 1440: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1441: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1442: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1443: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1444: if (!$Apache::lonhomework::scantronmode &&
1445: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1446: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1447: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1448: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1449: }
1.24 albertel 1450: }
1.159 albertel 1451: return '';
1.24 albertel 1452: }
1453:
1.25 albertel 1454: sub end_preduedate {
1.159 albertel 1455: return '';
1.24 albertel 1456: }
1457:
1.25 albertel 1458: sub start_postanswerdate {
1.326 albertel 1459: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1460: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade') {
1.300 albertel 1461: if ($Apache::lonhomework::scantronmode ||
1462: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.326 albertel 1463: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1464: }
1465: } elsif ($target eq 'tex') {
1.326 albertel 1466: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1467: }
1468: return '';
1.24 albertel 1469: }
1470:
1.25 albertel 1471: sub end_postanswerdate {
1.159 albertel 1472: return '';
1.24 albertel 1473: }
1474:
1.25 albertel 1475: sub start_notsolved {
1.326 albertel 1476: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1477: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1478: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1479: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1480: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1481: if ($gradestatus =~ /^correct/ &&
1482: &Apache::response::show_answer()) {
1.159 albertel 1483: &Apache::lonxml::debug("skipping");
1.326 albertel 1484: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1485: }
1.24 albertel 1486: }
1.159 albertel 1487: return '';
1.24 albertel 1488: }
1489:
1.25 albertel 1490: sub end_notsolved {
1.159 albertel 1491: return '';
1.24 albertel 1492: }
1493:
1494: sub start_solved {
1.326 albertel 1495: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1496: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1497: $target eq 'tex') {
1498: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1499: if ($gradestatus !~ /^correct/ ||
1500: !&Apache::response::show_answer()) {
1.326 albertel 1501: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1502: }
1.24 albertel 1503: }
1.159 albertel 1504: return '';
1.24 albertel 1505: }
1506:
1507: sub end_solved {
1.248 albertel 1508: return '';
1509: }
1510:
1511: sub start_problemtype {
1.326 albertel 1512: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1513: my $result;
1.339 albertel 1514: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1515: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1516: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1517: if (!defined($mode)) { $mode='show'; }
1518: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1519: my $found=0;
1520: foreach my $type (split(',',$for)) {
1521: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1522: }
1523: if ($mode eq 'show' && !$found) {
1.326 albertel 1524: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1525: }
1526: if ($mode eq 'hide' && $found) {
1.326 albertel 1527: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1528: }
1529: } elsif ($target eq 'edit') {
1530: $result .=&Apache::edit::tag_start($target,$token);
1531: $result.=&Apache::edit::select_arg('Mode:','mode',
1532: [['show','Show'],
1533: ['hide','Hide']]
1534: ,$token);
1535: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1536: [ ['exam','Exam/Quiz Problem'],
1537: ['survey','Survey'],
1538: ['problem','Homework Problem'] ]
1539: ,$token);
1540: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1541: } elsif ($target eq 'modified') {
1542: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1543: $safeeval,'mode','for');
1544: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1545: }
1546: return $result;
1547: }
1548:
1549: sub end_problemtype {
1.159 albertel 1550: return '';
1.24 albertel 1551: }
1.34 albertel 1552:
1553: sub start_startouttext {
1.159 albertel 1554: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1555: my @result=(''.'');
1556: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1557: return (@result);
1.34 albertel 1558: }
1.159 albertel 1559:
1.34 albertel 1560: sub end_startouttext {
1.326 albertel 1561: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1562: my $result='';
1563: my $text='';
1564:
1565: if ($target eq 'edit') {
1.326 albertel 1566: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1567: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1568: <td>".&mt('Delete:').
1.159 albertel 1569: &Apache::edit::deletelist($target,$token)
1570: ."</td>
1.42 albertel 1571: <td>".
1.159 albertel 1572: &Apache::edit::insertlist($target,$token).
1573: &Apache::edit::end_row().
1574: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1575: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1576: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1577: }
1578: if ($target eq 'modified') {
1.219 albertel 1579: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1580: }
1581: if ($target eq 'tex') {
1582: $result .= '\noindent ';
1583: }
1584: return $result;
1.34 albertel 1585: }
1.159 albertel 1586:
1.34 albertel 1587: sub start_endouttext {
1.159 albertel 1588: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1589: my $result='';
1590: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1591: if ($target eq "modified") {
1592: $result='<endouttext />'.
1593: &Apache::edit::handle_insertafter('startouttext'); }
1594: return $result;
1.34 albertel 1595: }
1.159 albertel 1596:
1.34 albertel 1597: sub end_endouttext {
1.159 albertel 1598: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1599: my @result=('','');
1600: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1601: return (@result);
1.34 albertel 1602: }
1.159 albertel 1603:
1.45 albertel 1604: sub delete_startouttext {
1.326 albertel 1605: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1606: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1607: my $text=$$parser['-1']->get_text("/endouttext");
1608: my $ntoken=$$parser['-1']->get_token();
1609: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1610: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1611: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1612: # they did the last time round
1613: &Apache::lonxml::increasedepth($ntoken);
1614: &Apache::lonxml::decreasedepth($ntoken);
1615: return 1;
1.193 www 1616: }
1617:
1618: sub start_simpleeditbutton {
1619: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1620: my $result='';
1.284 albertel 1621: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1622: ($target eq 'web') &&
1.330 albertel 1623: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1624: my $url=$env{'request.noversionuri'};
1.193 www 1625: $url=~s/\?.*$//;
1.278 albertel 1626: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1627: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1628: '<a href="'.$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 1629: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1630: }
1631: return $result;
1632: }
1633:
1634: sub end_simpleeditbutton {
1635: return '';
1.45 albertel 1636: }
1.34 albertel 1637:
1.1 albertel 1638: 1;
1639: __END__
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