Annotation of loncom/homework/structuretags.pm, revision 1.352
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.352 ! albertel 4: # $Id: structuretags.pm,v 1.351 2006/04/20 03:35:06 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?');
1.352 ! albertel 443: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 444: return (<<ENDCHECKOUT);
1.211 albertel 445: <h2>$lt{'resource'}</h2>
446: <p>$lt{'id_expln'}</p>
447: <font color="red">
448: <p>$lt{'warning'}</p>
1.91 albertel 449: </font>
1.352 ! albertel 450: <form name="checkout" method="POST" action="$uri">
1.91 albertel 451: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 452: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 453: </form>
454: ENDCHECKOUT
455: }
456:
1.252 albertel 457: sub firstaccess_msg {
1.253 albertel 458: my ($time,$symb)=@_;
459: my ($map)=&Apache::lonnet::decode_symb($symb);
460: my $foldertitle=&Apache::lonnet::gettitle($map);
461: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.352 ! albertel 462: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.252 albertel 463: return (<<ENDCHECKOUT);
1.253 albertel 464: <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 465: <form name="markaccess" method="POST" action="$uri">
1.252 albertel 466: <input type="hidden" name="markaccess" value="yes" />
467: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
468: </form>
469: ENDCHECKOUT
470: }
471:
1.204 albertel 472: sub init_problem_globals {
473: my ($type)=@_;
474: #initialize globals
1.308 foxr 475: # For problems, we start out in part 0 (outside a <part> tag).
476: # and part 0 is used to describe the main body of the <problem>
477: #
1.204 albertel 478: if ($type eq 'problem') {
479: $Apache::inputtags::part='0';
480: @Apache::inputtags::partlist=('0');
1.266 albertel 481: $Apache::lonhomework::problemstatus=&get_problem_status('0');
482: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 483:
1.266 albertel 484: } elsif ($type eq 'library') {
1.204 albertel 485: $Apache::inputtags::part='';
486: @Apache::inputtags::partlist=();
487: $Apache::lonhomework::problemstatus='';
1.266 albertel 488: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 489:
1.304 albertel 490: } elsif ($type eq 'Task') {
491: $Apache::inputtags::part='0';
492: @Apache::inputtags::partlist=('0');
493: $Apache::lonhomework::problemstatus='';
494: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 495: }
496: @Apache::inputtags::responselist = ();
497: @Apache::inputtags::importlist = ();
498: @Apache::inputtags::previous=();
499: @Apache::inputtags::previous_version=();
500: $Apache::structuretags::printanswer='No';
501: @Apache::structuretags::whileconds=();
502: @Apache::structuretags::whilebody=();
503: @Apache::structuretags::whileline=();
504: $Apache::lonhomework::scantronmode=0;
505: undef($Apache::lonhomework::name);
506:
507: }
508:
509: sub reset_problem_globals {
510: my ($type)=@_;
511: undef(%Apache::lonhomework::history);
512: undef(%Apache::lonhomework::results);
513: undef($Apache::inputtags::part);
1.208 albertel 514: #don't undef this, lonhomework.pm takes care of this, we use this to
515: #detect if we try to do 2 problems in one file
516: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 517: undef($Apache::lonhomework::name);
518: }
519:
1.241 albertel 520: sub set_problem_state {
1.240 albertel 521: my ($part)=@_;
1.284 albertel 522: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 523: $Apache::lonhomework::history{"resource.$part.solved"}=
524: 'correct_by_student';
525: }
526: }
527:
1.241 albertel 528: sub get_problem_status {
529: my ($part)=@_;
1.267 albertel 530: my $problem_status;
1.284 albertel 531: if ($env{'request.state'} eq 'construct' &&
532: defined($env{'form.problemstatus'})) {
533: $problem_status=$env{'form.problemstatus'};
1.267 albertel 534: } else {
535: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
536: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 537: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 538: }
539: return $problem_status;
540: }
541:
1.9 albertel 542: sub start_problem {
1.326 albertel 543: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 544:
1.311 foxr 545: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 546: if (!$Apache::lonxml::metamode) {
547: &Apache::lonxml::startredirection();
548: }
1.311 foxr 549:
1.308 foxr 550: # Problems don't nest and we don't allow more than one <problem> in
551: # a .problem file.
552: #
1.184 albertel 553: if ( $Apache::inputtags::part ne '' ||
554: $Apache::lonhomework::parsing_a_problem) {
555: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 556: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 557: return '';
558: }
1.184 albertel 559:
560: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 561: &init_problem_globals('problem');
1.166 albertel 562:
1.284 albertel 563: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 564: $Apache::lonhomework::scantronmode=1;
565: }
1.161 albertel 566:
1.246 albertel 567: &initialize_storage();
1.159 albertel 568: if ($target ne 'analyze') {
569: if ($target eq 'web') {
570: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 571: }
1.284 albertel 572: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 573: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 574: if (($env{'request.state'} eq 'construct') &&
575: defined($env{'form.problemtype'})) {
576: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 577: }
1.332 albertel 578: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 579: }
1.164 albertel 580: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 581: my $uri=$env{'request.uri'};
1.159 albertel 582: if ($uri=~/\.(\w+)$/) {
583: $Apache::lonhomework::type=$1;
584: &Apache::lonxml::debug("Using type of $1");
585: } else {
586: $Apache::lonhomework::type='problem';
587: &Apache::lonxml::debug("Using default type, problem, :$uri:");
588: }
1.87 albertel 589: }
1.301 albertel 590: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 591:
1.159 albertel 592: #added vars to the scripting enviroment
1.213 albertel 593: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 594: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 595: &Apache::run::run($expression,$safeeval);
1.159 albertel 596: my $status;
597: my $accessmsg;
598:
1.343 albertel 599: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 600: my ($result,$form_tag_start);
601: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex') {
602: ($result,$form_tag_start) =
603: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
604: $name);
605: }
606:
1.284 albertel 607: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 608:
609: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
610: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
611: $target eq 'tex') {
612: #handle exam checkout
613: if ($Apache::lonhomework::type eq 'exam') {
614: my $token=
615: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 616: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 617: $token=&Apache::lonxml::maketoken();
618: $Apache::lonhomework::history{"resource.0.outtoken"}=
619: $token;
620: }
1.343 albertel 621: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 622: }
1.284 albertel 623: if ($env{'form.markaccess'}) {
1.252 albertel 624: &Apache::lonnet::set_first_access('map');
625: }
1.159 albertel 626: #handle rand seed in construction space
627: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 628: my ($symb)=&Apache::lonxml::whichuser();
1.333 albertel 629: if ($env{'request.state'} ne "construct" &&
630: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 631: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
632: $rndseed.'" />'.
633: '<input type="submit" name="resetdata"
1.334 albertel 634: value="'.&mt('New Problem Variation').'" />';
635: if (exists($env{'form.username'})) {
636: $form_tag_start.=
1.164 albertel 637: '<input type="hidden" name="username"
1.284 albertel 638: value="'.$env{'form.username'}.'" />';
1.334 albertel 639: }
1.333 albertel 640: if ($env{'request.role.adv'}) {
1.267 albertel 641: $form_tag_start.=
1.300 albertel 642: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 643: if (defined($env{'form.showallfoils'})) {
1.267 albertel 644: $form_tag_start.='checked="on"';
645: }
1.300 albertel 646: $form_tag_start.= ' />'.&mt(' Show All Foils').
647: '</label>';
1.267 albertel 648: }
649: $form_tag_start.='<hr />';
1.162 albertel 650: }
1.324 albertel 651:
652: ($status,$accessmsg,my $slot_name,my $slot) =
653: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 654: push (@Apache::inputtags::status,$status);
1.324 albertel 655:
1.159 albertel 656: my $expression='$external::datestatus="'.$status.'";';
657: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
658: &Apache::run::run($expression,$safeeval);
659: &Apache::lonxml::debug("Got $status");
1.324 albertel 660:
1.159 albertel 661: if (( $status eq 'CLOSED' ) ||
662: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 663: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 664: ( $status eq 'BANNED') ||
1.216 albertel 665: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 666: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 667: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 668: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
669: $style);
1.159 albertel 670: if ( $target eq "web" ) {
1.343 albertel 671: my $msg;
1.159 albertel 672: if ($status eq 'UNAVAILABLE') {
1.245 albertel 673: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 674: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 675: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 676: }
1.216 albertel 677: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 678: $msg.='The problem '.$accessmsg;
679: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 680: $msg.=&checkout_msg();
1.252 albertel 681: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 682: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 683: } elsif ($status eq 'NOT_IN_A_SLOT') {
684: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 685: }
686: $result.=$msg.'<br />';
687: } elsif ($target eq 'tex') {
1.332 albertel 688: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
689: : '\begin{minipage}{\textwidth}';
690: $result.='\begin{document}\noindent \vskip 1 mm '.
691: $startminipage.'\vskip 0 mm';
1.159 albertel 692: if ($status eq 'UNAVAILABLE') {
1.211 albertel 693: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 694: } else {
1.211 albertel 695: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 696: }
697: }
1.324 albertel 698: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 699: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
700: $style);
1.324 albertel 701: if ($target eq 'web') {
702: $result .= &Apache::bridgetask::proctor_validation_screen();
703: } elsif ($target eq 'grade') {
704: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
705: 'problem');
706: }
1.159 albertel 707: } elsif ($target eq 'web') {
1.343 albertel 708: $result.="\n $form_tag_start".
1.227 albertel 709: '<input type="hidden" name="submitted" value="yes" />';
710: # create a page header and exit
1.284 albertel 711: if ($env{'request.state'} eq "construct") {
712: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 713: }
714: # if we are viewing someone else preserve that info
1.284 albertel 715: if (defined $env{'form.grade_symb'}) {
1.227 albertel 716: foreach my $field ('symb','courseid','domain','username') {
717: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 718: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 719: }
720: }
721: } elsif ($target eq 'tex') {
1.319 foxr 722: $result .= 'INSERTTEXFRONTMATTERHERE';
723:
1.99 sakharuk 724: }
1.159 albertel 725: } elsif ($target eq 'edit') {
1.343 albertel 726: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 727: $Apache::lonxml::warnings_error_header=
728: &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 729: my $temp=&Apache::edit::insertlist($target,$token);
730: $result.=$temp;
731: } elsif ($target eq 'modified') {
732: $result=$token->[4];
733: $result.=&Apache::edit::handle_insert();
734: } else {
735: # page_start returned a starting result, delete it if we don't need it
736: $result = '';
1.99 sakharuk 737: }
1.159 albertel 738: return $result;
1.9 albertel 739: }
740:
741: sub end_problem {
1.159 albertel 742: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 743: my $result;
1.310 foxr 744:
1.321 albertel 745: if (!$Apache::lonxml::metamode) {
746: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 747: $Apache::lonxml::post_evaluate=0;
1.321 albertel 748: }
1.319 foxr 749:
750: if ($target eq 'tex') {
1.321 albertel 751:
752: # Figure out the front matter and replace the
753: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
754: # this in end_problem because whether or not we display due
755: # dates depends on whether due dates have already been
756: # displayed in the problem parts.
757:
1.319 foxr 758: my $frontmatter = '';
759: my $startminipage = '';
760: if (not $env{'form.problem_split'}=~/yes/) {
761: $startminipage = '\begin{minipage}{\textwidth}';
762: }
763: my $id = $Apache::inputtags::part;
764: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
765: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
766: my @packages = split /,/,$packages;
767: my $allow_print_points = 0;
768: foreach my $partial_key (@packages) {
769: if ($partial_key=~m/^part_0$/) {
770: $allow_print_points=1;
771: }
772: }
773: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
774: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
775: if (lc($env{'course.'.$env{'request.course.id'}.
776: '.disableexampointprint'}) eq 'yes') {
777: $allow_print_points=0;
778: }
779: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
780: 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 ';
781: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
782: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
783:
784: # Figure out what the due date is and if we need to print
785: # it in the problem header. We have been logging the
786: # last due date written to file.
787:
788: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
789: my $duedate = POSIX::strftime("%c",localtime($duetime));
790: my $temp_file;
791: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
792:
793: # Figure out what the last printed due date is or set it
794: # to the epoch if no duedates have been printed.
795:
796: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
797: if (-e $filename) {
798: $temp_file = Apache::File->new($filename);
799: my @due_file = <$temp_file>;
800: $due_file_content = $due_file[$#due_file];
801: chomp $due_file_content;
802: }
803:
804: # We display the due date iff it is not the same as the last
805: # duedate in problem header ($due_file_content), and
806: # none of our parts displayed a duedate.
807: #
808: my $parts_with_displayduedate;
809: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
810: $parts_with_displayduedate =
811: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
812: } else {
813: $parts_with_displayduedate = 0;
814: }
815: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
816: $temp_file = Apache::File->new('>'.$filename);
817: print $temp_file "$duetime\n";
818: if (not $env{'request.symb'} =~ m/\.page_/) {
819: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
820: $frontmatter .= $begin_doc.
821: '\textit{Due date: '.$duedate.'} '.$toc_line;
822: } else {
823: $frontmatter.= $begin_doc.$toc_line;
824: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
825: }
826: } else {
827: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
828: }
829: } else {
830: if (not $env{'request.symb'} =~ m/\.page_/) {
831: $frontmatter .= $begin_doc.$toc_line;
832: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
833: } else {
834: $frontmatter .= '\vskip 1mm \\\\\\\\';
835: }
836: }
837: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
838: }
839:
1.159 albertel 840: my $status=$Apache::inputtags::status['-1'];
841: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
842: $target eq 'tex') {
1.249 albertel 843: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 844: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 845: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
846: &Apache::inputtags::grade;
1.324 albertel 847: } elsif ($status eq 'NEEDS_CHECKIN') {
848: # no need to grade, and don't want to hide data
1.249 albertel 849: } else {
850: # move any submission data to .hidden
851: &Apache::inputtags::hidealldata($Apache::inputtags::part);
852: }
1.159 albertel 853: } elsif ( ($target eq 'web' || $target eq 'tex') &&
854: $Apache::inputtags::part eq '0' &&
1.252 albertel 855: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 856: # if part is zero, no <part>s existed, so we need show the current
857: # grading status
858: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
859: $result.= $gradestatus;
860: }
861: if (
1.284 albertel 862: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 863: ($target eq 'answer') || ($target eq 'tex')
864: ) {
1.227 albertel 865: if ($target ne 'tex' &&
1.284 albertel 866: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 867: $result.="</form>";
1.348 albertel 868: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 869: }
870: if ($target eq 'web') {
1.346 albertel 871: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 872: } elsif ($target eq 'tex') {
1.178 sakharuk 873: my $endminipage = '';
1.284 albertel 874: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 875: $endminipage = '\end{minipage}';
876: }
1.284 albertel 877: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 878: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 879: } else {
1.262 sakharuk 880: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 881: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 882: $result .= $endminipage.'\end{document} ';
883: } else {
884: $result .= '';
885: }
1.159 albertel 886: }
887: }
888: }
889: if ($target eq 'grade') {
890: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
891: &finalize_storage();
892: }
1.284 albertel 893: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
894: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 895: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 896: # normally we get it from above, but in CSTR
1.172 albertel 897: # we always show answer mode too.
1.159 albertel 898: }
899: } elsif ($target eq 'meta') {
900: if ($Apache::inputtags::part eq '0') {
1.179 albertel 901: @Apache::inputtags::response=();
1.159 albertel 902: $result=&Apache::response::mandatory_part_meta;
903: }
1.215 albertel 904: $result.=&Apache::response::meta_part_order();
1.258 albertel 905: $result.=&Apache::response::meta_response_order();
1.159 albertel 906: } elsif ($target eq 'edit') {
907: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 908: $result .= &problem_edit_footer();
1.320 albertel 909: } elsif ($target eq 'modified') {
910: $result .= $token->[2];
911: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 912: }
1.155 albertel 913:
1.284 albertel 914: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 915: &Apache::inputtags::check_for_duplicate_ids();
916: }
1.204 albertel 917:
918: &reset_problem_globals('problem');
1.159 albertel 919:
920: return $result;
1.48 albertel 921: }
922:
1.108 albertel 923:
1.48 albertel 924: sub start_library {
1.159 albertel 925: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 926: my ($result,$form_tag_start);
1.244 albertel 927: if ($$tagstack[0] eq 'library') {
928: &init_problem_globals('library');
929: $Apache::lonhomework::type='problem';
930: }
1.159 albertel 931: if ($target eq 'edit') {
1.343 albertel 932: ($result,$form_tag_start)=
933: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
934: 'Edit');
935: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 936: my $temp=&Apache::edit::insertlist($target,$token);
937: $result.=$temp;
938: } elsif ($target eq 'modified') {
939: $result=$token->[4];
940: $result.=&Apache::edit::handle_insert();
1.340 albertel 941: } elsif (($target eq 'web' || $target eq 'webgrade')
942: && $$tagstack[0] eq 'library'
943: && $env{'request.state'} eq "construct" ) {
1.159 albertel 944: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 945: ($result,$form_tag_start)=
946: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
947: $name);
1.159 albertel 948: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 949: $result.=" \n $form_tag_start".
1.159 albertel 950: '<input type="hidden" name="submitted" value="yes" />';
951: $result.=&problem_web_to_edit_header($rndseed);
952: }
953: return $result;
1.48 albertel 954: }
955:
956: sub end_library {
1.159 albertel 957: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
958: my $result='';
959: if ($target eq 'edit') {
960: $result=&problem_edit_footer();
961: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 962: $env{'request.state'} eq "construct") {
1.349 albertel 963: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 964: }
1.204 albertel 965: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 966: return $result;
1.197 www 967: }
968:
969: sub start_definetag {
1.326 albertel 970: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 971:
972: my $result;
973:
974: my $name = $token->[2]->{'name'};
1.326 albertel 975: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 976: if ($name=~/^\//) {
977: $result=
978: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
979: } else {
980: $result=
981: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
982: }
983: $skip=~s/\</\<\;/gs;
984: $skip=~s/\>/\>\;/gs;
985: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
986: return $result;
987: }
988:
989: sub end_definetag {
990: return '';
1.1 albertel 991: }
992:
993: sub start_block {
1.201 albertel 994: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 995:
996: my $result;
1.1 albertel 997:
1.339 albertel 998: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
999: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1000: my $code = $token->[2]->{'condition'};
1.201 albertel 1001: if (defined($code)) {
1.137 albertel 1002: if (!$Apache::lonxml::default_homework_loaded) {
1003: &Apache::lonxml::default_homework_load($safeeval);
1004: }
1.131 albertel 1005: $result = &Apache::run::run($code,$safeeval);
1006: &Apache::lonxml::debug("block :$code: returned :$result:");
1007: } else {
1008: $result='1';
1009: }
1010: if ( ! $result ) {
1.201 albertel 1011: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1012: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1013: }
1014: $result='';
1015: } elsif ($target eq 'edit') {
1016: $result .=&Apache::edit::tag_start($target,$token);
1017: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1018: $token,40);
1019: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1020: } elsif ($target eq 'modified') {
1021: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1022: $safeeval,'condition');
1023: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1024: }
1.131 albertel 1025: return $result;
1.1 albertel 1026: }
1027:
1028: sub end_block {
1.167 www 1029: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1030: my $result;
1031: if ($target eq "edit") {
1032: $result.= &Apache::edit::tag_end($target,$token,'');
1033: }
1034: return $result;
1035: }
1036:
1037: sub start_languageblock {
1.201 albertel 1038: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1039:
1040: my $result;
1041:
1.339 albertel 1042: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1043: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1044: my $include = $token->[2]->{'include'};
1045: my $exclude = $token->[2]->{'exclude'};
1046: my %languages=&Apache::loncommon::display_languages();
1047: $result='1';
1048: if ($include) {
1049: $result='';
1050: foreach (split(/\,/,$include)) {
1051: if ($languages{$_}) { $result='1'; }
1052: }
1053: }
1054: if ($exclude) {
1055: foreach (split(/\,/,$exclude)) {
1056: if ($languages{$_}) { $result='0'; }
1057: }
1058: }
1059: if ( ! $result ) {
1060: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1061: $style);
1062: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1063: }
1064: $result='';
1.167 www 1065: } elsif ($target eq 'edit') {
1066: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1067: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1068: $token,40);
1.211 albertel 1069: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1070: $token,40);
1071: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1072: } elsif ($target eq 'modified') {
1073: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1074: $safeeval,'include',
1075: 'exclude');
1.167 www 1076: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1077: }
1078: return $result;
1079: }
1080:
1081: sub end_languageblock {
1.170 www 1082: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1083: my $result;
1.201 albertel 1084: if ($target eq "edit") {
1.170 www 1085: $result.= &Apache::edit::tag_end($target,$token,'');
1086: }
1087: return $result;
1088: }
1089:
1090: sub start_instructorcomment {
1.201 albertel 1091: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1092:
1093: my $result;
1094:
1.339 albertel 1095: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1096: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1097: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1098: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1099: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1100: $parser,$style);
1.170 www 1101: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1102: }
1103: $result='';
1104: } elsif ($target eq 'edit') {
1105: $result .=&Apache::edit::tag_start($target,$token);
1106: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1107: }
1108: return $result;
1109: }
1110:
1111: sub end_instructorcomment {
1.159 albertel 1112: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1113: my $result;
1114: if ($target eq "edit") {
1115: $result.= &Apache::edit::tag_end($target,$token,'');
1116: }
1117: return $result;
1.4 tsai 1118: }
1119:
1120: sub start_while {
1.326 albertel 1121: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1122:
1.160 albertel 1123: my $result;
1.339 albertel 1124: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1125: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1126: my $code = $token->[2]->{'condition'};
1.4 tsai 1127:
1.160 albertel 1128: push( @Apache::structuretags::whileconds, $code);
1129: if (!$Apache::lonxml::default_homework_loaded) {
1130: &Apache::lonxml::default_homework_load($safeeval);
1131: }
1132: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1133: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1134: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1135: push( @Apache::structuretags::whileline, $token->[5]);
1136: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1137: if ( $result ) {
1138: &Apache::lonxml::newparser($parser,\$bodytext);
1139: }
1140: } elsif ($target eq 'edit') {
1141: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1142: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1143: $token,40);
1144: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1145: } elsif ($target eq 'modified') {
1146: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1147: $safeeval,'condition');
1148: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1149: }
1.160 albertel 1150: return $result;
1.4 tsai 1151: }
1152:
1153: sub end_while {
1.159 albertel 1154: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1155: my $result;
1156:
1.339 albertel 1157: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1158: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1159: my $code = pop(@Apache::structuretags::whileconds);
1160: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1161: my $line = pop(@Apache::structuretags::whileline);
1162: my $return = &Apache::run::run($code,$safeeval);
1163: my $starttime=time;
1164: my $error=0;
1165: while ($return) {
1166: if (time-$starttime >
1167: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1168: #$return = 0; $error=1; next;
1.161 albertel 1169: }
1170: $result.=&Apache::scripttag::xmlparse($bodytext);
1171: $return = &Apache::run::run($code,$safeeval);
1172: }
1173: if ($error) {
1.270 albertel 1174: &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 1175: }
1176: } elsif ($target eq "edit") {
1177: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1178: }
1.160 albertel 1179: return $result;
1.1 albertel 1180: }
1.6 tsai 1181:
1.160 albertel 1182: # <randomlist show="1">
1.6 tsai 1183: # <tag1>..</tag1>
1184: # <tag2>..</tag2>
1185: # <tag3>..</tag3>
1.160 albertel 1186: # ...
1.6 tsai 1187: # </randomlist>
1188: sub start_randomlist {
1.326 albertel 1189: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1190: my $result;
1.339 albertel 1191: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1192: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1193: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1194: my $b_parser= HTML::LCParser->new(\$body);
1195: $b_parser->xml_mode(1);
1196: $b_parser->marked_sections(1);
1.159 albertel 1197: my $b_tok;
1198: my @randomlist;
1199: my $list_item;
1200: while($b_tok = $b_parser->get_token() ) {
1201: if($b_tok->[0] eq 'S') { # start tag
1202: # get content of the tag until matching end tag
1203: # get all text upto the matching tag
1204: # and push the content into @randomlist
1205: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1206: $b_parser);
1207: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1208: push(@randomlist,$list_item);
1209: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1210: # $list_item</b>";
1211: }
1212: if($b_tok->[0] eq 'T') { # text
1213: # what to do with text in between tags?
1214: # print "<b>TEXT $b_tok->[1]</b><br />";
1215: }
1216: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1217: # print "<b>END-TAG $b_tok->[1]</b><br />";
1218: # }
1219: }
1.303 albertel 1220: if (@randomlist) {
1221: my @idx_arr = (0 .. $#randomlist);
1222: &Apache::structuretags::shuffle(\@idx_arr);
1223: my $bodytext = '';
1224: my $show=$#randomlist;
1225: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1226: $showarg--;
1227: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1228: for(0 .. $show) {
1229: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1230: }
1231: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1232: }
1233: } elsif ($target eq 'edit' ) {
1234: $result .=&Apache::edit::tag_start($target,$token);
1235: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1236: $token,5);
1237: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1238: } elsif ($target eq 'modified' ) {
1239: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1240: $safeeval,'show');
1241: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1242: }
1243: return $result;
1.7 tsai 1244: }
1245:
1246: sub shuffle {
1247: my $a=shift;
1248: my $i;
1.303 albertel 1249: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1250: &Apache::response::pushrandomnumber();
1.159 albertel 1251: for($i=@$a;--$i;) {
1252: my $j=int(&Math::Random::random_uniform() * ($i+1));
1253: next if $i == $j;
1254: @$a[$i,$j] = @$a[$j,$i];
1255: }
1.251 albertel 1256: &Apache::response::poprandomnumber();
1.7 tsai 1257: }
1.6 tsai 1258: }
1259:
1260: sub end_randomlist {
1.159 albertel 1261: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1262: my $result;
1263: if ($target eq 'edit' ) {
1264: $result=&Apache::edit::tag_end($target,$token,
1265: 'End Randomly Parsed Block');
1266: }
1267: return $result;
1.6 tsai 1268: }
1269:
1.283 albertel 1270: sub ordered_show_check {
1271: my $last_part=$Apache::inputtags::partlist[-2];
1272: my $in_order=
1273: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1274: my $in_order_show=1;
1275: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1276: $in_order_show=&Apache::response::check_status($last_part);
1277: }
1278: return $in_order_show;
1279: }
1280:
1.11 albertel 1281: sub start_part {
1.326 albertel 1282: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1283: if (!$Apache::lonxml::metamode) {
1284: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1285: # duedates.
1286: }
1.159 albertel 1287: my $result='';
1288: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1289: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1290: $Apache::inputtags::part=$id;
1.177 albertel 1291: push(@Apache::inputtags::partlist,$id);
1292: @Apache::inputtags::response=();
1.159 albertel 1293: @Apache::inputtags::previous=();
1294: @Apache::inputtags::previous_version=();
1.241 albertel 1295: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1296: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1297: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1298: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1299: my $in_order_show=&ordered_show_check();
1.214 albertel 1300: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1301: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1302: &Apache::run::run($expression,$safeeval);
1.159 albertel 1303:
1304: if ($target eq 'meta') {
1.224 www 1305: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1306: return &Apache::response::mandatory_part_meta.
1307: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1308: } elsif ($target eq 'web' || $target eq 'grade' ||
1309: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1310: if ($hidden || !$in_order_show) {
1.326 albertel 1311: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1312: } else {
1313: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1314: push (@Apache::inputtags::status,$status);
1315: my $expression='$external::datestatus="'.$status.'";';
1316: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1317: &Apache::run::run($expression,$safeeval);
1.284 albertel 1318: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1319: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1320: }
1.216 albertel 1321: if (( $status eq 'CLOSED' ) ||
1322: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1323: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1324: ( $status eq 'BANNED') ||
1325: ( $status eq 'UNAVAILABLE') ||
1326: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1327: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1328: $style);
1.159 albertel 1329: if ( $target eq "web" ) {
1.211 albertel 1330: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1331: } elsif ( $target eq 'tex' ) {
1.284 albertel 1332: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1333: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1334: } else {
1.211 albertel 1335: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1336: }
1.159 albertel 1337: }
1338: } else {
1339: if ($target eq 'tex') {
1.284 albertel 1340: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1341: if ($$tagstack[-2] eq 'td') {
1342: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1343: } else {
1344: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1345: }
1.195 sakharuk 1346: }
1.159 albertel 1347: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1348: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1349: my @allkeys = split /,/,$allkeys;
1350: my $allow_print_points = 0;
1351: foreach my $partial_key (@allkeys) {
1.230 albertel 1352: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1353: if ($1 ne '0') {$allow_print_points=1;}
1354: }
1355: }
1.275 albertel 1356: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1357: if (defined($maxtries) && $maxtries < 0) {
1358: $allow_print_points=0;
1359: }
1.302 albertel 1360: if (lc($env{'course.'.$env{'request.course.id'}.
1361: '.disableexampointprint'}) eq 'yes') {
1362: $allow_print_points=0;
1363: }
1.222 sakharuk 1364: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1365: } elsif ($target eq 'web') {
1366: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1367: }
1368: }
1369: }
1370: } elsif ($target eq 'edit') {
1371: $result.=&Apache::edit::tag_start($target,$token);
1372: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1373: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1374: ' '.
1375: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1376: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1377: } elsif ($target eq 'modified') {
1378: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1379: $safeeval,'id','display');
1.159 albertel 1380: if ($constructtag) {
1.225 albertel 1381: #limiting ids to only letters numbers, and space
1.224 www 1382: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1383: $result = &Apache::edit::rebuild_tag($token);
1384: $result.=&Apache::edit::handle_insert();
1385: }
1386: }
1387: return $result;
1.11 albertel 1388: }
1389:
1390: sub end_part {
1.159 albertel 1391: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1392: &Apache::lonxml::debug("in end_part $target ");
1393: my $status=$Apache::inputtags::status['-1'];
1394: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1395: my $in_order_show=&ordered_show_check();
1.321 albertel 1396: my $result;
1397: if (!$Apache::lonxml::metamode) {
1398: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1399: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1400: }
1.312 albertel 1401: if ($target eq 'grade') {
1.249 albertel 1402: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1403: !$hidden && $in_order_show) {
1.311 foxr 1404: $result.=&Apache::inputtags::grade;
1.249 albertel 1405: } else {
1406: # move any submission data to .hidden
1407: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1408: }
1.283 albertel 1409: } elsif (($target eq 'web' || $target eq 'tex') &&
1410: !$hidden && $in_order_show) {
1.159 albertel 1411: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1412: $target);
1.212 albertel 1413: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1414: $gradestatus='';
1415: }
1.311 foxr 1416: $result.=$gradestatus;
1.265 sakharuk 1417: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1418: } elsif ($target eq 'edit') {
1.311 foxr 1419: $result.=&Apache::edit::end_table();
1.322 albertel 1420: } elsif ($target eq 'modified') {
1421: $result .= $token->[2];
1422: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 1423: }
1424: pop @Apache::inputtags::status;
1425: $Apache::inputtags::part='';
1.295 albertel 1426: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1427: return $result;
1.11 albertel 1428: }
1.1 albertel 1429:
1.25 albertel 1430: sub start_preduedate {
1.326 albertel 1431: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1432: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1433: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1434: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1435: if (!$Apache::lonhomework::scantronmode &&
1436: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1437: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1438: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1439: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1440: }
1.24 albertel 1441: }
1.159 albertel 1442: return '';
1.24 albertel 1443: }
1444:
1.25 albertel 1445: sub end_preduedate {
1.159 albertel 1446: return '';
1.24 albertel 1447: }
1448:
1.25 albertel 1449: sub start_postanswerdate {
1.326 albertel 1450: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1451: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade') {
1.300 albertel 1452: if ($Apache::lonhomework::scantronmode ||
1453: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.326 albertel 1454: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1455: }
1456: } elsif ($target eq 'tex') {
1.326 albertel 1457: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1458: }
1459: return '';
1.24 albertel 1460: }
1461:
1.25 albertel 1462: sub end_postanswerdate {
1.159 albertel 1463: return '';
1.24 albertel 1464: }
1465:
1.25 albertel 1466: sub start_notsolved {
1.326 albertel 1467: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1468: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1469: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1470: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1471: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1472: if ($gradestatus =~ /^correct/ &&
1473: &Apache::response::show_answer()) {
1.159 albertel 1474: &Apache::lonxml::debug("skipping");
1.326 albertel 1475: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1476: }
1.24 albertel 1477: }
1.159 albertel 1478: return '';
1.24 albertel 1479: }
1480:
1.25 albertel 1481: sub end_notsolved {
1.159 albertel 1482: return '';
1.24 albertel 1483: }
1484:
1485: sub start_solved {
1.326 albertel 1486: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1487: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1488: $target eq 'tex') {
1489: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1490: if ($gradestatus !~ /^correct/ ||
1491: !&Apache::response::show_answer()) {
1.326 albertel 1492: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1493: }
1.24 albertel 1494: }
1.159 albertel 1495: return '';
1.24 albertel 1496: }
1497:
1498: sub end_solved {
1.248 albertel 1499: return '';
1500: }
1501:
1502: sub start_problemtype {
1.326 albertel 1503: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1504: my $result;
1.339 albertel 1505: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1506: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1507: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1508: if (!defined($mode)) { $mode='show'; }
1509: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1510: my $found=0;
1511: foreach my $type (split(',',$for)) {
1512: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1513: }
1514: if ($mode eq 'show' && !$found) {
1.326 albertel 1515: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1516: }
1517: if ($mode eq 'hide' && $found) {
1.326 albertel 1518: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1519: }
1520: } elsif ($target eq 'edit') {
1521: $result .=&Apache::edit::tag_start($target,$token);
1522: $result.=&Apache::edit::select_arg('Mode:','mode',
1523: [['show','Show'],
1524: ['hide','Hide']]
1525: ,$token);
1526: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1527: [ ['exam','Exam/Quiz Problem'],
1528: ['survey','Survey'],
1529: ['problem','Homework Problem'] ]
1530: ,$token);
1531: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1532: } elsif ($target eq 'modified') {
1533: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1534: $safeeval,'mode','for');
1535: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1536: }
1537: return $result;
1538: }
1539:
1540: sub end_problemtype {
1.159 albertel 1541: return '';
1.24 albertel 1542: }
1.34 albertel 1543:
1544: sub start_startouttext {
1.159 albertel 1545: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1546: my @result=(''.'');
1547: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1548: return (@result);
1.34 albertel 1549: }
1.159 albertel 1550:
1.34 albertel 1551: sub end_startouttext {
1.326 albertel 1552: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1553: my $result='';
1554: my $text='';
1555:
1556: if ($target eq 'edit') {
1.326 albertel 1557: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1558: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1559: <td>".&mt('Delete:').
1.159 albertel 1560: &Apache::edit::deletelist($target,$token)
1561: ."</td>
1.42 albertel 1562: <td>".
1.159 albertel 1563: &Apache::edit::insertlist($target,$token).
1564: &Apache::edit::end_row().
1565: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1566: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1567: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1568: }
1569: if ($target eq 'modified') {
1.219 albertel 1570: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1571: }
1572: if ($target eq 'tex') {
1573: $result .= '\noindent ';
1574: }
1575: return $result;
1.34 albertel 1576: }
1.159 albertel 1577:
1.34 albertel 1578: sub start_endouttext {
1.159 albertel 1579: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1580: my $result='';
1581: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1582: if ($target eq "modified") {
1583: $result='<endouttext />'.
1584: &Apache::edit::handle_insertafter('startouttext'); }
1585: return $result;
1.34 albertel 1586: }
1.159 albertel 1587:
1.34 albertel 1588: sub end_endouttext {
1.159 albertel 1589: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1590: my @result=('','');
1591: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1592: return (@result);
1.34 albertel 1593: }
1.159 albertel 1594:
1.45 albertel 1595: sub delete_startouttext {
1.326 albertel 1596: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1597: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1598: my $text=$$parser['-1']->get_text("/endouttext");
1599: my $ntoken=$$parser['-1']->get_token();
1600: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1601: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1602: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1603: # they did the last time round
1604: &Apache::lonxml::increasedepth($ntoken);
1605: &Apache::lonxml::decreasedepth($ntoken);
1606: return 1;
1.193 www 1607: }
1608:
1609: sub start_simpleeditbutton {
1610: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1611: my $result='';
1.284 albertel 1612: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1613: ($target eq 'web') &&
1.330 albertel 1614: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1615: my $url=$env{'request.noversionuri'};
1.193 www 1616: $url=~s/\?.*$//;
1.278 albertel 1617: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1618: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1619: '<a href="'.$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 1620: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1621: }
1622: return $result;
1623: }
1624:
1625: sub end_simpleeditbutton {
1626: return '';
1.45 albertel 1627: }
1.34 albertel 1628:
1.1 albertel 1629: 1;
1630: __END__
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