Annotation of loncom/homework/structuretags.pm, revision 1.355
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.355 ! albertel 4: # $Id: structuretags.pm,v 1.354 2006/04/28 18:34:22 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.='>';
1.355 ! albertel 163:
! 164: my $symb=&Apache::lonnet::symbread();
! 165: if ($symb =~ /\S/) {
! 166: $symb=
! 167: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
! 168: $form_tag_start.=
! 169: '<input type="hidden" name="symb" value="'.$symb.'" />';
! 170: }
1.159 albertel 171: }
1.343 albertel 172: return ($page_start,$form_tag_start);
1.105 albertel 173: }
174:
1.141 matthew 175: #use Time::HiRes();
1.105 albertel 176: sub get_resource_name {
1.159 albertel 177: my ($parstack,$safeeval)=@_;
1.204 albertel 178: if (defined($Apache::lonhomework::name)) {
179: return $Apache::lonhomework::name;
180: }
1.279 albertel 181: my ($symb)=&Apache::lonxml::whichuser();
182: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 183: if ($name eq '') {
184: $name=&Apache::lonnet::EXT('resource.title');
185: if ($name eq 'con_lost') { $name = ''; }
186: }
1.204 albertel 187: if ($name!~/\S+/) {
1.284 albertel 188: $name=$env{'request.uri'};
1.205 albertel 189: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 190: }
1.159 albertel 191: $Apache::lonhomework::name=$name;
192: return $name;
1.105 albertel 193: }
194:
195: sub setup_rndseed {
1.159 albertel 196: my ($safeeval)=@_;
197: my $rndseed;
1.162 albertel 198: my ($symb)=&Apache::lonxml::whichuser();
1.333 albertel 199: if ($env{'request.state'} eq "construct"
200: || $symb eq ''
201: || $Apache::lonhomework::type eq 'practice'
202: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 203: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 204: ['rndseed']);
1.284 albertel 205: $rndseed=$env{'form.rndseed'};
1.159 albertel 206: if (!$rndseed) {
1.162 albertel 207: $rndseed=$Apache::lonhomework::history{'rndseed'};
208: if (!$rndseed) {
209: $rndseed=time;
210: }
1.284 albertel 211: $env{'form.rndseed'}=$rndseed;
1.162 albertel 212: }
1.284 albertel 213: if ($env{'form.resetdata'} eq &mt('New Problem Variation') ||
214: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 215: srand(time);
216: $rndseed=int(rand(2100000000));
1.284 albertel 217: $env{'form.rndseed'}=$rndseed;
218: delete($env{'form.resetdata'});
219: delete($env{'form.newrandomization'});
1.159 albertel 220: }
1.187 albertel 221: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 222: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 223: }
1.247 albertel 224: if ($Apache::lonhomework::history{'resource.CODE'}) {
225: $rndseed=&Apache::lonnet::rndseed();
226: }
1.221 albertel 227: if ($safeeval) {
228: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 229: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 230: }
1.159 albertel 231: }
232: return $rndseed;
1.105 albertel 233: }
234:
1.268 albertel 235: sub remember_problem_state {
236: return '
1.284 albertel 237: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
238: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
239: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 240: }
241:
1.105 albertel 242: sub problem_edit_header {
1.268 albertel 243: return '<input type="hidden" name="submitted" value="edit" />'.
244: &Apache::structuretags::remember_problem_state().'
1.210 albertel 245: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 246: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
1.328 albertel 247: <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 248: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
249: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
250: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.260 albertel 251: &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
252: .'</td></tr></table>'.
1.282 albertel 253: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 254: }
255:
256: sub problem_edit_footer {
1.210 albertel 257: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 258: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
1.348 albertel 259: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 260: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 261: }
262:
1.235 albertel 263: sub option {
264: my ($value,$name) = @_;
265: my $result ="<option value='".$value."' ";
1.284 albertel 266: if ($env{'form.'.$name} eq $value) {
1.235 albertel 267: $result.=" selected='on' ";
268: }
269: $result.='>';
270: return $result;
271: }
272:
1.105 albertel 273: sub problem_web_to_edit_header {
1.159 albertel 274: my ($rndseed)=@_;
1.313 albertel 275: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
276: if (!$Apache::lonhomework::parsing_a_task) {
277: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
278: }
279: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 280: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
281: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 282: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 283: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 284: $rndseed.'"
1.270 albertel 285: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 286: <label><input type="checkbox" name="showallfoils" ';
1.315 albertel 287: my $show_all_foils_text =
288: ($Apache::lonhomework::parsing_a_task) ?
289: &mt(' Show All Instances')
290: : &mt(' Show All Foils');
291:
1.284 albertel 292: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.315 albertel 293: $result.= ' />'.$show_all_foils_text.
1.228 www 294: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.281 albertel 295: '</label><hr />';
1.313 albertel 296: if (!$Apache::lonhomework::parsing_a_task) {
297: $result.="
1.235 albertel 298: <nobr>
299: Problem Status:
300: <select name='problemstate'>
1.270 albertel 301: <option value=''></option>
1.235 albertel 302: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
303: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
304: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
305: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
306: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
307: </select>
308: </nobr>
309: <nobr>
310: Problem Type:
311: <select name='problemtype'>
1.270 albertel 312: <option value=''></option>
1.242 albertel 313: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
314: ".&option('problem','problemtype').&mt("Homework problem")."</option>
315: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 316: </select>
317: </nobr>
318: <nobr>
319: Feedback Mode:
320: <select name='problemstatus'>
321: <option value=''></option>
1.242 albertel 322: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
323: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 324: </select>
325: </nobr>
1.242 albertel 326: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 327: <hr />";
1.313 albertel 328: my $numtoanalyze=$env{'form.numtoanalyze'};
329: if (!$numtoanalyze) { $numtoanalyze=20; }
330: $result.= '<input type="submit" name="problemmode" value='.
331: &mt('"Calculate answers').'" /> for
1.136 albertel 332: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 333: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
334: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 335: '',undef,undef,300).
1.210 albertel 336: '<hr />';
1.313 albertel 337: }
1.159 albertel 338: return $result;
1.48 albertel 339: }
340:
1.65 albertel 341: sub initialize_storage {
1.353 albertel 342: undef(%Apache::lonhomework::results);
343: undef(%Apache::lonhomework::history);
1.159 albertel 344: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.353 albertel 345:
346: # anonymous users (CODEd exams) have no data
347: if ($name eq 'anonymous'
348: && !defined($domain)) {
349: return;
350: }
351:
1.333 albertel 352: if ($env{'request.state'} eq 'construct'
353: || $symb eq ''
354: || $Apache::lonhomework::type eq 'practice') {
355:
356: my $namespace = $symb || $env{'request.uri'};
357: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
358: $env{'form.resetdata'} eq &mt('New Problem Variation') ||
359: $env{'form.newrandomization'} eq &mt('New Randomization')) {
360: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
361: &Apache::lonxml::debug("Attempt reset");
362: }
1.159 albertel 363: %Apache::lonhomework::history=
1.333 albertel 364: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 365: my ($temp)=keys %Apache::lonhomework::history ;
366: &Apache::lonxml::debug("Return message of $temp");
367: } else {
368: %Apache::lonhomework::history=
369: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
370: }
1.353 albertel 371:
1.159 albertel 372: #ignore error conditions
1.67 albertel 373: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 374: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 375: }
376:
377: # -------------------------------------------------------------finalize_storage
378: # Stores away the result has to a student's environment
379: # checks form.grade_ for specific values, other wises stores
380: # to the running users environment
1.285 raeburn 381: # Will increment totals for attempts, students, and corrects
382: # if running user has student role.
1.65 albertel 383: sub finalize_storage {
1.159 albertel 384: my $result;
1.289 albertel 385: if (%Apache::lonhomework::results) {
1.323 albertel 386: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
387: delete(@Apache::lonhomework::results{@remove});
1.159 albertel 388: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.333 albertel 389: if ($env{'request.state'} eq 'construct'
390: || $symb eq ''
391: || $Apache::lonhomework::type eq 'practice') {
392: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 393: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 394: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 395: $namespace,'',$domain,$name);
1.159 albertel 396: &Apache::lonxml::debug('Construct Store return message:'.$result);
397: } else {
398: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
399: $symb,$courseid,$domain,$name);
400: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 401: if ($env{'request.role'} =~/^st/) {
402: &store_aggregates($symb,$courseid);
403: }
1.159 albertel 404: }
1.323 albertel 405: } else {
406: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 407: }
1.159 albertel 408: return $result;
1.65 albertel 409: }
1.289 albertel 410: use Data::Dumper;
1.65 albertel 411:
1.285 raeburn 412: # -------------------------------------------------------------store_aggregates
413: # Sends hash of values to be incremented in nohist_resourcetracker.db
414: # for the course. Increments total number of attempts, unique students
415: # and corrects for each part for an instance of a problem, as appropriate.
416: sub store_aggregates {
417: my ($symb,$courseid) = @_;
1.286 albertel 418: my %aggregate;
419: my @parts;
1.288 albertel 420: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
421: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 422: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 423: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 424: push(@parts, $1);
1.285 raeburn 425: }
426: }
1.286 albertel 427: foreach my $part (@parts) {
428: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
429: eq 'APPROX_ANS' ||
430: $Apache::lonhomework::results{'resource.'.$part.'.award'}
431: eq 'EXACT_ANS') {
1.287 albertel 432: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 433: }
1.286 albertel 434: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 435: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 436: } else {
1.293 albertel 437: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 438: if ($last_reset) {
1.293 albertel 439: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 440: $aggregate{$symb."\0".$part."\0users"} = 1;
441: }
442: }
1.285 raeburn 443: }
1.287 albertel 444: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 445: }
1.292 raeburn 446: if (keys (%aggregate) > 0) {
1.289 albertel 447: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 448: $cdomain,$cname);
449: }
450: }
1.289 albertel 451:
1.65 albertel 452: sub checkout_msg {
1.211 albertel 453: my %lt=&Apache::lonlocal::texthash(
454: 'resource'=>'The resource needs to be checked out',
455: '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.',
456: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
457: 'checkout'=>'Check out Exam for Viewing',
458: 'checkout?'=>'Check out Exam?');
1.352 albertel 459: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 460: return (<<ENDCHECKOUT);
1.211 albertel 461: <h2>$lt{'resource'}</h2>
462: <p>$lt{'id_expln'}</p>
463: <font color="red">
464: <p>$lt{'warning'}</p>
1.91 albertel 465: </font>
1.352 albertel 466: <form name="checkout" method="POST" action="$uri">
1.91 albertel 467: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 468: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 469: </form>
470: ENDCHECKOUT
471: }
472:
1.252 albertel 473: sub firstaccess_msg {
1.253 albertel 474: my ($time,$symb)=@_;
475: my ($map)=&Apache::lonnet::decode_symb($symb);
476: my $foldertitle=&Apache::lonnet::gettitle($map);
477: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.352 albertel 478: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.252 albertel 479: return (<<ENDCHECKOUT);
1.253 albertel 480: <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 481: <form name="markaccess" method="POST" action="$uri">
1.252 albertel 482: <input type="hidden" name="markaccess" value="yes" />
483: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
484: </form>
485: ENDCHECKOUT
486: }
487:
1.204 albertel 488: sub init_problem_globals {
489: my ($type)=@_;
490: #initialize globals
1.308 foxr 491: # For problems, we start out in part 0 (outside a <part> tag).
492: # and part 0 is used to describe the main body of the <problem>
493: #
1.204 albertel 494: if ($type eq 'problem') {
495: $Apache::inputtags::part='0';
496: @Apache::inputtags::partlist=('0');
1.266 albertel 497: $Apache::lonhomework::problemstatus=&get_problem_status('0');
498: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 499:
1.266 albertel 500: } elsif ($type eq 'library') {
1.204 albertel 501: $Apache::inputtags::part='';
502: @Apache::inputtags::partlist=();
503: $Apache::lonhomework::problemstatus='';
1.266 albertel 504: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 505:
1.304 albertel 506: } elsif ($type eq 'Task') {
507: $Apache::inputtags::part='0';
508: @Apache::inputtags::partlist=('0');
509: $Apache::lonhomework::problemstatus='';
510: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 511: }
512: @Apache::inputtags::responselist = ();
513: @Apache::inputtags::importlist = ();
514: @Apache::inputtags::previous=();
515: @Apache::inputtags::previous_version=();
516: $Apache::structuretags::printanswer='No';
517: @Apache::structuretags::whileconds=();
518: @Apache::structuretags::whilebody=();
519: @Apache::structuretags::whileline=();
520: $Apache::lonhomework::scantronmode=0;
521: undef($Apache::lonhomework::name);
522:
523: }
524:
525: sub reset_problem_globals {
526: my ($type)=@_;
527: undef(%Apache::lonhomework::history);
528: undef(%Apache::lonhomework::results);
529: undef($Apache::inputtags::part);
1.208 albertel 530: #don't undef this, lonhomework.pm takes care of this, we use this to
531: #detect if we try to do 2 problems in one file
532: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 533: undef($Apache::lonhomework::name);
534: }
535:
1.241 albertel 536: sub set_problem_state {
1.240 albertel 537: my ($part)=@_;
1.284 albertel 538: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 539: $Apache::lonhomework::history{"resource.$part.solved"}=
540: 'correct_by_student';
541: }
542: }
543:
1.241 albertel 544: sub get_problem_status {
545: my ($part)=@_;
1.267 albertel 546: my $problem_status;
1.284 albertel 547: if ($env{'request.state'} eq 'construct' &&
548: defined($env{'form.problemstatus'})) {
549: $problem_status=$env{'form.problemstatus'};
1.267 albertel 550: } else {
551: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
552: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 553: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 554: }
555: return $problem_status;
556: }
557:
1.9 albertel 558: sub start_problem {
1.326 albertel 559: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 560:
1.311 foxr 561: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 562: if (!$Apache::lonxml::metamode) {
563: &Apache::lonxml::startredirection();
564: }
1.311 foxr 565:
1.308 foxr 566: # Problems don't nest and we don't allow more than one <problem> in
567: # a .problem file.
568: #
1.184 albertel 569: if ( $Apache::inputtags::part ne '' ||
570: $Apache::lonhomework::parsing_a_problem) {
571: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 572: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 573: return '';
574: }
1.184 albertel 575:
576: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 577: &init_problem_globals('problem');
1.166 albertel 578:
1.284 albertel 579: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 580: $Apache::lonhomework::scantronmode=1;
581: }
1.161 albertel 582:
1.246 albertel 583: &initialize_storage();
1.159 albertel 584: if ($target ne 'analyze') {
585: if ($target eq 'web') {
586: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 587: }
1.284 albertel 588: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 589: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 590: if (($env{'request.state'} eq 'construct') &&
591: defined($env{'form.problemtype'})) {
592: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 593: }
1.332 albertel 594: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 595: }
1.164 albertel 596: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 597: my $uri=$env{'request.uri'};
1.159 albertel 598: if ($uri=~/\.(\w+)$/) {
599: $Apache::lonhomework::type=$1;
600: &Apache::lonxml::debug("Using type of $1");
601: } else {
602: $Apache::lonhomework::type='problem';
603: &Apache::lonxml::debug("Using default type, problem, :$uri:");
604: }
1.87 albertel 605: }
1.301 albertel 606: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 607:
1.159 albertel 608: #added vars to the scripting enviroment
1.213 albertel 609: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 610: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 611: &Apache::run::run($expression,$safeeval);
1.159 albertel 612: my $status;
613: my $accessmsg;
614:
1.343 albertel 615: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 616: my ($result,$form_tag_start);
1.354 albertel 617: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
618: || $target eq 'edit') {
1.350 albertel 619: ($result,$form_tag_start) =
620: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
621: $name);
622: }
623:
1.284 albertel 624: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 625:
626: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
627: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
628: $target eq 'tex') {
629: #handle exam checkout
630: if ($Apache::lonhomework::type eq 'exam') {
631: my $token=
632: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 633: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 634: $token=&Apache::lonxml::maketoken();
635: $Apache::lonhomework::history{"resource.0.outtoken"}=
636: $token;
637: }
1.343 albertel 638: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 639: }
1.284 albertel 640: if ($env{'form.markaccess'}) {
1.252 albertel 641: &Apache::lonnet::set_first_access('map');
642: }
1.159 albertel 643: #handle rand seed in construction space
644: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 645: my ($symb)=&Apache::lonxml::whichuser();
1.333 albertel 646: if ($env{'request.state'} ne "construct" &&
647: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 648: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
649: $rndseed.'" />'.
650: '<input type="submit" name="resetdata"
1.334 albertel 651: value="'.&mt('New Problem Variation').'" />';
652: if (exists($env{'form.username'})) {
653: $form_tag_start.=
1.164 albertel 654: '<input type="hidden" name="username"
1.284 albertel 655: value="'.$env{'form.username'}.'" />';
1.334 albertel 656: }
1.333 albertel 657: if ($env{'request.role.adv'}) {
1.267 albertel 658: $form_tag_start.=
1.300 albertel 659: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 660: if (defined($env{'form.showallfoils'})) {
1.267 albertel 661: $form_tag_start.='checked="on"';
662: }
1.300 albertel 663: $form_tag_start.= ' />'.&mt(' Show All Foils').
664: '</label>';
1.267 albertel 665: }
666: $form_tag_start.='<hr />';
1.162 albertel 667: }
1.324 albertel 668:
669: ($status,$accessmsg,my $slot_name,my $slot) =
670: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 671: push (@Apache::inputtags::status,$status);
1.324 albertel 672:
1.159 albertel 673: my $expression='$external::datestatus="'.$status.'";';
674: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
675: &Apache::run::run($expression,$safeeval);
676: &Apache::lonxml::debug("Got $status");
1.324 albertel 677:
1.159 albertel 678: if (( $status eq 'CLOSED' ) ||
679: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 680: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 681: ( $status eq 'BANNED') ||
1.216 albertel 682: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 683: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 684: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 685: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
686: $style);
1.159 albertel 687: if ( $target eq "web" ) {
1.343 albertel 688: my $msg;
1.159 albertel 689: if ($status eq 'UNAVAILABLE') {
1.245 albertel 690: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 691: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 692: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 693: }
1.216 albertel 694: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 695: $msg.='The problem '.$accessmsg;
696: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 697: $msg.=&checkout_msg();
1.252 albertel 698: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 699: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 700: } elsif ($status eq 'NOT_IN_A_SLOT') {
701: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 702: }
703: $result.=$msg.'<br />';
704: } elsif ($target eq 'tex') {
1.332 albertel 705: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
706: : '\begin{minipage}{\textwidth}';
707: $result.='\begin{document}\noindent \vskip 1 mm '.
708: $startminipage.'\vskip 0 mm';
1.159 albertel 709: if ($status eq 'UNAVAILABLE') {
1.211 albertel 710: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 711: } else {
1.211 albertel 712: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 713: }
714: }
1.324 albertel 715: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 716: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
717: $style);
1.324 albertel 718: if ($target eq 'web') {
719: $result .= &Apache::bridgetask::proctor_validation_screen();
720: } elsif ($target eq 'grade') {
721: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
722: 'problem');
723: }
1.159 albertel 724: } elsif ($target eq 'web') {
1.343 albertel 725: $result.="\n $form_tag_start".
1.227 albertel 726: '<input type="hidden" name="submitted" value="yes" />';
727: # create a page header and exit
1.284 albertel 728: if ($env{'request.state'} eq "construct") {
729: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 730: }
731: # if we are viewing someone else preserve that info
1.284 albertel 732: if (defined $env{'form.grade_symb'}) {
1.227 albertel 733: foreach my $field ('symb','courseid','domain','username') {
734: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 735: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 736: }
737: }
738: } elsif ($target eq 'tex') {
1.319 foxr 739: $result .= 'INSERTTEXFRONTMATTERHERE';
740:
1.99 sakharuk 741: }
1.159 albertel 742: } elsif ($target eq 'edit') {
1.343 albertel 743: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 744: $Apache::lonxml::warnings_error_header=
745: &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 746: my $temp=&Apache::edit::insertlist($target,$token);
747: $result.=$temp;
748: } elsif ($target eq 'modified') {
749: $result=$token->[4];
750: $result.=&Apache::edit::handle_insert();
751: } else {
752: # page_start returned a starting result, delete it if we don't need it
753: $result = '';
1.99 sakharuk 754: }
1.159 albertel 755: return $result;
1.9 albertel 756: }
757:
758: sub end_problem {
1.159 albertel 759: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 760: my $result;
1.310 foxr 761:
1.321 albertel 762: if (!$Apache::lonxml::metamode) {
763: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 764: $Apache::lonxml::post_evaluate=0;
1.321 albertel 765: }
1.319 foxr 766:
767: if ($target eq 'tex') {
1.321 albertel 768:
769: # Figure out the front matter and replace the
770: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
771: # this in end_problem because whether or not we display due
772: # dates depends on whether due dates have already been
773: # displayed in the problem parts.
774:
1.319 foxr 775: my $frontmatter = '';
776: my $startminipage = '';
777: if (not $env{'form.problem_split'}=~/yes/) {
778: $startminipage = '\begin{minipage}{\textwidth}';
779: }
780: my $id = $Apache::inputtags::part;
781: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
782: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
783: my @packages = split /,/,$packages;
784: my $allow_print_points = 0;
785: foreach my $partial_key (@packages) {
786: if ($partial_key=~m/^part_0$/) {
787: $allow_print_points=1;
788: }
789: }
790: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
791: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
792: if (lc($env{'course.'.$env{'request.course.id'}.
793: '.disableexampointprint'}) eq 'yes') {
794: $allow_print_points=0;
795: }
796: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
797: 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 ';
798: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
799: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
800:
801: # Figure out what the due date is and if we need to print
802: # it in the problem header. We have been logging the
803: # last due date written to file.
804:
805: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
806: my $duedate = POSIX::strftime("%c",localtime($duetime));
807: my $temp_file;
808: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
809:
810: # Figure out what the last printed due date is or set it
811: # to the epoch if no duedates have been printed.
812:
813: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
814: if (-e $filename) {
815: $temp_file = Apache::File->new($filename);
816: my @due_file = <$temp_file>;
817: $due_file_content = $due_file[$#due_file];
818: chomp $due_file_content;
819: }
820:
821: # We display the due date iff it is not the same as the last
822: # duedate in problem header ($due_file_content), and
823: # none of our parts displayed a duedate.
824: #
825: my $parts_with_displayduedate;
826: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
827: $parts_with_displayduedate =
828: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
829: } else {
830: $parts_with_displayduedate = 0;
831: }
832: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
833: $temp_file = Apache::File->new('>'.$filename);
834: print $temp_file "$duetime\n";
835: if (not $env{'request.symb'} =~ m/\.page_/) {
836: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
837: $frontmatter .= $begin_doc.
838: '\textit{Due date: '.$duedate.'} '.$toc_line;
839: } else {
840: $frontmatter.= $begin_doc.$toc_line;
841: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
842: }
843: } else {
844: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
845: }
846: } else {
847: if (not $env{'request.symb'} =~ m/\.page_/) {
848: $frontmatter .= $begin_doc.$toc_line;
849: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
850: } else {
851: $frontmatter .= '\vskip 1mm \\\\\\\\';
852: }
853: }
854: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
855: }
856:
1.159 albertel 857: my $status=$Apache::inputtags::status['-1'];
858: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
859: $target eq 'tex') {
1.249 albertel 860: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 861: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 862: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
863: &Apache::inputtags::grade;
1.324 albertel 864: } elsif ($status eq 'NEEDS_CHECKIN') {
865: # no need to grade, and don't want to hide data
1.249 albertel 866: } else {
867: # move any submission data to .hidden
868: &Apache::inputtags::hidealldata($Apache::inputtags::part);
869: }
1.159 albertel 870: } elsif ( ($target eq 'web' || $target eq 'tex') &&
871: $Apache::inputtags::part eq '0' &&
1.252 albertel 872: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 873: # if part is zero, no <part>s existed, so we need show the current
874: # grading status
875: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
876: $result.= $gradestatus;
877: }
878: if (
1.284 albertel 879: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 880: ($target eq 'answer') || ($target eq 'tex')
881: ) {
1.227 albertel 882: if ($target ne 'tex' &&
1.284 albertel 883: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 884: $result.="</form>";
1.348 albertel 885: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 886: }
887: if ($target eq 'web') {
1.346 albertel 888: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 889: } elsif ($target eq 'tex') {
1.178 sakharuk 890: my $endminipage = '';
1.284 albertel 891: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 892: $endminipage = '\end{minipage}';
893: }
1.284 albertel 894: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 895: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 896: } else {
1.262 sakharuk 897: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 898: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 899: $result .= $endminipage.'\end{document} ';
900: } else {
901: $result .= '';
902: }
1.159 albertel 903: }
904: }
905: }
906: if ($target eq 'grade') {
907: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
908: &finalize_storage();
909: }
1.284 albertel 910: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
911: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 912: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 913: # normally we get it from above, but in CSTR
1.172 albertel 914: # we always show answer mode too.
1.159 albertel 915: }
916: } elsif ($target eq 'meta') {
917: if ($Apache::inputtags::part eq '0') {
1.179 albertel 918: @Apache::inputtags::response=();
1.159 albertel 919: $result=&Apache::response::mandatory_part_meta;
920: }
1.215 albertel 921: $result.=&Apache::response::meta_part_order();
1.258 albertel 922: $result.=&Apache::response::meta_response_order();
1.159 albertel 923: } elsif ($target eq 'edit') {
924: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 925: $result .= &problem_edit_footer();
1.320 albertel 926: } elsif ($target eq 'modified') {
927: $result .= $token->[2];
928: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 929: }
1.155 albertel 930:
1.284 albertel 931: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 932: &Apache::inputtags::check_for_duplicate_ids();
933: }
1.204 albertel 934:
935: &reset_problem_globals('problem');
1.159 albertel 936:
937: return $result;
1.48 albertel 938: }
939:
1.108 albertel 940:
1.48 albertel 941: sub start_library {
1.159 albertel 942: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 943: my ($result,$form_tag_start);
1.244 albertel 944: if ($$tagstack[0] eq 'library') {
945: &init_problem_globals('library');
946: $Apache::lonhomework::type='problem';
947: }
1.159 albertel 948: if ($target eq 'edit') {
1.343 albertel 949: ($result,$form_tag_start)=
950: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
951: 'Edit');
952: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 953: my $temp=&Apache::edit::insertlist($target,$token);
954: $result.=$temp;
955: } elsif ($target eq 'modified') {
956: $result=$token->[4];
957: $result.=&Apache::edit::handle_insert();
1.340 albertel 958: } elsif (($target eq 'web' || $target eq 'webgrade')
959: && $$tagstack[0] eq 'library'
960: && $env{'request.state'} eq "construct" ) {
1.159 albertel 961: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 962: ($result,$form_tag_start)=
963: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
964: $name);
1.159 albertel 965: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 966: $result.=" \n $form_tag_start".
1.159 albertel 967: '<input type="hidden" name="submitted" value="yes" />';
968: $result.=&problem_web_to_edit_header($rndseed);
969: }
970: return $result;
1.48 albertel 971: }
972:
973: sub end_library {
1.159 albertel 974: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
975: my $result='';
976: if ($target eq 'edit') {
977: $result=&problem_edit_footer();
978: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 979: $env{'request.state'} eq "construct") {
1.349 albertel 980: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 981: }
1.204 albertel 982: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 983: return $result;
1.197 www 984: }
985:
986: sub start_definetag {
1.326 albertel 987: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 988:
989: my $result;
990:
991: my $name = $token->[2]->{'name'};
1.326 albertel 992: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 993: if ($name=~/^\//) {
994: $result=
995: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
996: } else {
997: $result=
998: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
999: }
1000: $skip=~s/\</\<\;/gs;
1001: $skip=~s/\>/\>\;/gs;
1002: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1003: return $result;
1004: }
1005:
1006: sub end_definetag {
1007: return '';
1.1 albertel 1008: }
1009:
1010: sub start_block {
1.201 albertel 1011: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1012:
1013: my $result;
1.1 albertel 1014:
1.339 albertel 1015: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1016: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1017: my $code = $token->[2]->{'condition'};
1.201 albertel 1018: if (defined($code)) {
1.137 albertel 1019: if (!$Apache::lonxml::default_homework_loaded) {
1020: &Apache::lonxml::default_homework_load($safeeval);
1021: }
1.131 albertel 1022: $result = &Apache::run::run($code,$safeeval);
1023: &Apache::lonxml::debug("block :$code: returned :$result:");
1024: } else {
1025: $result='1';
1026: }
1027: if ( ! $result ) {
1.201 albertel 1028: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1029: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1030: }
1031: $result='';
1032: } elsif ($target eq 'edit') {
1033: $result .=&Apache::edit::tag_start($target,$token);
1034: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1035: $token,40);
1036: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1037: } elsif ($target eq 'modified') {
1038: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1039: $safeeval,'condition');
1040: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1041: }
1.131 albertel 1042: return $result;
1.1 albertel 1043: }
1044:
1045: sub end_block {
1.167 www 1046: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1047: my $result;
1048: if ($target eq "edit") {
1049: $result.= &Apache::edit::tag_end($target,$token,'');
1050: }
1051: return $result;
1052: }
1053:
1054: sub start_languageblock {
1.201 albertel 1055: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1056:
1057: my $result;
1058:
1.339 albertel 1059: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1060: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1061: my $include = $token->[2]->{'include'};
1062: my $exclude = $token->[2]->{'exclude'};
1063: my %languages=&Apache::loncommon::display_languages();
1064: $result='1';
1065: if ($include) {
1066: $result='';
1067: foreach (split(/\,/,$include)) {
1068: if ($languages{$_}) { $result='1'; }
1069: }
1070: }
1071: if ($exclude) {
1072: foreach (split(/\,/,$exclude)) {
1073: if ($languages{$_}) { $result='0'; }
1074: }
1075: }
1076: if ( ! $result ) {
1077: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1078: $style);
1079: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1080: }
1081: $result='';
1.167 www 1082: } elsif ($target eq 'edit') {
1083: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1084: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1085: $token,40);
1.211 albertel 1086: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1087: $token,40);
1088: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1089: } elsif ($target eq 'modified') {
1090: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1091: $safeeval,'include',
1092: 'exclude');
1.167 www 1093: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1094: }
1095: return $result;
1096: }
1097:
1098: sub end_languageblock {
1.170 www 1099: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1100: my $result;
1.201 albertel 1101: if ($target eq "edit") {
1.170 www 1102: $result.= &Apache::edit::tag_end($target,$token,'');
1103: }
1104: return $result;
1105: }
1106:
1107: sub start_instructorcomment {
1.201 albertel 1108: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1109:
1110: my $result;
1111:
1.339 albertel 1112: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1113: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1114: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1115: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1116: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1117: $parser,$style);
1.170 www 1118: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1119: }
1120: $result='';
1121: } elsif ($target eq 'edit') {
1122: $result .=&Apache::edit::tag_start($target,$token);
1123: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1124: }
1125: return $result;
1126: }
1127:
1128: sub end_instructorcomment {
1.159 albertel 1129: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1130: my $result;
1131: if ($target eq "edit") {
1132: $result.= &Apache::edit::tag_end($target,$token,'');
1133: }
1134: return $result;
1.4 tsai 1135: }
1136:
1137: sub start_while {
1.326 albertel 1138: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1139:
1.160 albertel 1140: my $result;
1.339 albertel 1141: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1142: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1143: my $code = $token->[2]->{'condition'};
1.4 tsai 1144:
1.160 albertel 1145: push( @Apache::structuretags::whileconds, $code);
1146: if (!$Apache::lonxml::default_homework_loaded) {
1147: &Apache::lonxml::default_homework_load($safeeval);
1148: }
1149: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1150: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1151: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1152: push( @Apache::structuretags::whileline, $token->[5]);
1153: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1154: if ( $result ) {
1155: &Apache::lonxml::newparser($parser,\$bodytext);
1156: }
1157: } elsif ($target eq 'edit') {
1158: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1159: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1160: $token,40);
1161: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1162: } elsif ($target eq 'modified') {
1163: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1164: $safeeval,'condition');
1165: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1166: }
1.160 albertel 1167: return $result;
1.4 tsai 1168: }
1169:
1170: sub end_while {
1.159 albertel 1171: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1172: my $result;
1173:
1.339 albertel 1174: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1175: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1176: my $code = pop(@Apache::structuretags::whileconds);
1177: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1178: my $line = pop(@Apache::structuretags::whileline);
1179: my $return = &Apache::run::run($code,$safeeval);
1180: my $starttime=time;
1181: my $error=0;
1182: while ($return) {
1183: if (time-$starttime >
1184: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1185: #$return = 0; $error=1; next;
1.161 albertel 1186: }
1187: $result.=&Apache::scripttag::xmlparse($bodytext);
1188: $return = &Apache::run::run($code,$safeeval);
1189: }
1190: if ($error) {
1.270 albertel 1191: &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 1192: }
1193: } elsif ($target eq "edit") {
1194: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1195: }
1.160 albertel 1196: return $result;
1.1 albertel 1197: }
1.6 tsai 1198:
1.160 albertel 1199: # <randomlist show="1">
1.6 tsai 1200: # <tag1>..</tag1>
1201: # <tag2>..</tag2>
1202: # <tag3>..</tag3>
1.160 albertel 1203: # ...
1.6 tsai 1204: # </randomlist>
1205: sub start_randomlist {
1.326 albertel 1206: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1207: my $result;
1.339 albertel 1208: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1209: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1210: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1211: my $b_parser= HTML::LCParser->new(\$body);
1212: $b_parser->xml_mode(1);
1213: $b_parser->marked_sections(1);
1.159 albertel 1214: my $b_tok;
1215: my @randomlist;
1216: my $list_item;
1217: while($b_tok = $b_parser->get_token() ) {
1218: if($b_tok->[0] eq 'S') { # start tag
1219: # get content of the tag until matching end tag
1220: # get all text upto the matching tag
1221: # and push the content into @randomlist
1222: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1223: $b_parser);
1224: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1225: push(@randomlist,$list_item);
1226: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1227: # $list_item</b>";
1228: }
1229: if($b_tok->[0] eq 'T') { # text
1230: # what to do with text in between tags?
1231: # print "<b>TEXT $b_tok->[1]</b><br />";
1232: }
1233: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1234: # print "<b>END-TAG $b_tok->[1]</b><br />";
1235: # }
1236: }
1.303 albertel 1237: if (@randomlist) {
1238: my @idx_arr = (0 .. $#randomlist);
1239: &Apache::structuretags::shuffle(\@idx_arr);
1240: my $bodytext = '';
1241: my $show=$#randomlist;
1242: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1243: $showarg--;
1244: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1245: for(0 .. $show) {
1246: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1247: }
1248: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1249: }
1250: } elsif ($target eq 'edit' ) {
1251: $result .=&Apache::edit::tag_start($target,$token);
1252: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1253: $token,5);
1254: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1255: } elsif ($target eq 'modified' ) {
1256: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1257: $safeeval,'show');
1258: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1259: }
1260: return $result;
1.7 tsai 1261: }
1262:
1263: sub shuffle {
1264: my $a=shift;
1265: my $i;
1.303 albertel 1266: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1267: &Apache::response::pushrandomnumber();
1.159 albertel 1268: for($i=@$a;--$i;) {
1269: my $j=int(&Math::Random::random_uniform() * ($i+1));
1270: next if $i == $j;
1271: @$a[$i,$j] = @$a[$j,$i];
1272: }
1.251 albertel 1273: &Apache::response::poprandomnumber();
1.7 tsai 1274: }
1.6 tsai 1275: }
1276:
1277: sub end_randomlist {
1.159 albertel 1278: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1279: my $result;
1280: if ($target eq 'edit' ) {
1281: $result=&Apache::edit::tag_end($target,$token,
1282: 'End Randomly Parsed Block');
1283: }
1284: return $result;
1.6 tsai 1285: }
1286:
1.283 albertel 1287: sub ordered_show_check {
1288: my $last_part=$Apache::inputtags::partlist[-2];
1289: my $in_order=
1290: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1291: my $in_order_show=1;
1292: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1293: $in_order_show=&Apache::response::check_status($last_part);
1294: }
1295: return $in_order_show;
1296: }
1297:
1.11 albertel 1298: sub start_part {
1.326 albertel 1299: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1300: if (!$Apache::lonxml::metamode) {
1301: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1302: # duedates.
1303: }
1.159 albertel 1304: my $result='';
1305: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1306: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1307: $Apache::inputtags::part=$id;
1.177 albertel 1308: push(@Apache::inputtags::partlist,$id);
1309: @Apache::inputtags::response=();
1.159 albertel 1310: @Apache::inputtags::previous=();
1311: @Apache::inputtags::previous_version=();
1.241 albertel 1312: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1313: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1314: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1315: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1316: my $in_order_show=&ordered_show_check();
1.214 albertel 1317: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1318: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1319: &Apache::run::run($expression,$safeeval);
1.159 albertel 1320:
1321: if ($target eq 'meta') {
1.224 www 1322: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1323: return &Apache::response::mandatory_part_meta.
1324: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1325: } elsif ($target eq 'web' || $target eq 'grade' ||
1326: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1327: if ($hidden || !$in_order_show) {
1.326 albertel 1328: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1329: } else {
1330: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1331: push (@Apache::inputtags::status,$status);
1332: my $expression='$external::datestatus="'.$status.'";';
1333: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1334: &Apache::run::run($expression,$safeeval);
1.284 albertel 1335: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1336: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1337: }
1.216 albertel 1338: if (( $status eq 'CLOSED' ) ||
1339: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1340: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1341: ( $status eq 'BANNED') ||
1342: ( $status eq 'UNAVAILABLE') ||
1343: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1344: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1345: $style);
1.159 albertel 1346: if ( $target eq "web" ) {
1.211 albertel 1347: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1348: } elsif ( $target eq 'tex' ) {
1.284 albertel 1349: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1350: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1351: } else {
1.211 albertel 1352: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1353: }
1.159 albertel 1354: }
1355: } else {
1356: if ($target eq 'tex') {
1.284 albertel 1357: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1358: if ($$tagstack[-2] eq 'td') {
1359: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1360: } else {
1361: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1362: }
1.195 sakharuk 1363: }
1.159 albertel 1364: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1365: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1366: my @allkeys = split /,/,$allkeys;
1367: my $allow_print_points = 0;
1368: foreach my $partial_key (@allkeys) {
1.230 albertel 1369: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1370: if ($1 ne '0') {$allow_print_points=1;}
1371: }
1372: }
1.275 albertel 1373: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1374: if (defined($maxtries) && $maxtries < 0) {
1375: $allow_print_points=0;
1376: }
1.302 albertel 1377: if (lc($env{'course.'.$env{'request.course.id'}.
1378: '.disableexampointprint'}) eq 'yes') {
1379: $allow_print_points=0;
1380: }
1.222 sakharuk 1381: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1382: } elsif ($target eq 'web') {
1383: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1384: }
1385: }
1386: }
1387: } elsif ($target eq 'edit') {
1388: $result.=&Apache::edit::tag_start($target,$token);
1389: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1390: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1391: ' '.
1392: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1393: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1394: } elsif ($target eq 'modified') {
1395: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1396: $safeeval,'id','display');
1.159 albertel 1397: if ($constructtag) {
1.225 albertel 1398: #limiting ids to only letters numbers, and space
1.224 www 1399: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1400: $result = &Apache::edit::rebuild_tag($token);
1401: $result.=&Apache::edit::handle_insert();
1402: }
1403: }
1404: return $result;
1.11 albertel 1405: }
1406:
1407: sub end_part {
1.159 albertel 1408: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1409: &Apache::lonxml::debug("in end_part $target ");
1410: my $status=$Apache::inputtags::status['-1'];
1411: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1412: my $in_order_show=&ordered_show_check();
1.321 albertel 1413: my $result;
1414: if (!$Apache::lonxml::metamode) {
1415: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1416: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1417: }
1.312 albertel 1418: if ($target eq 'grade') {
1.249 albertel 1419: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1420: !$hidden && $in_order_show) {
1.311 foxr 1421: $result.=&Apache::inputtags::grade;
1.249 albertel 1422: } else {
1423: # move any submission data to .hidden
1424: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1425: }
1.283 albertel 1426: } elsif (($target eq 'web' || $target eq 'tex') &&
1427: !$hidden && $in_order_show) {
1.159 albertel 1428: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1429: $target);
1.212 albertel 1430: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1431: $gradestatus='';
1432: }
1.311 foxr 1433: $result.=$gradestatus;
1.265 sakharuk 1434: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1435: } elsif ($target eq 'edit') {
1.311 foxr 1436: $result.=&Apache::edit::end_table();
1.322 albertel 1437: } elsif ($target eq 'modified') {
1438: $result .= $token->[2];
1439: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 1440: }
1441: pop @Apache::inputtags::status;
1442: $Apache::inputtags::part='';
1.295 albertel 1443: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1444: return $result;
1.11 albertel 1445: }
1.1 albertel 1446:
1.25 albertel 1447: sub start_preduedate {
1.326 albertel 1448: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1449: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1450: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1451: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1452: if (!$Apache::lonhomework::scantronmode &&
1453: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1454: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1455: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1456: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1457: }
1.24 albertel 1458: }
1.159 albertel 1459: return '';
1.24 albertel 1460: }
1461:
1.25 albertel 1462: sub end_preduedate {
1.159 albertel 1463: return '';
1.24 albertel 1464: }
1465:
1.25 albertel 1466: sub start_postanswerdate {
1.326 albertel 1467: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1468: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade') {
1.300 albertel 1469: if ($Apache::lonhomework::scantronmode ||
1470: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.326 albertel 1471: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1472: }
1473: } elsif ($target eq 'tex') {
1.326 albertel 1474: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1475: }
1476: return '';
1.24 albertel 1477: }
1478:
1.25 albertel 1479: sub end_postanswerdate {
1.159 albertel 1480: return '';
1.24 albertel 1481: }
1482:
1.25 albertel 1483: sub start_notsolved {
1.326 albertel 1484: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1485: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1486: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1487: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1488: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1489: if ($gradestatus =~ /^correct/ &&
1490: &Apache::response::show_answer()) {
1.159 albertel 1491: &Apache::lonxml::debug("skipping");
1.326 albertel 1492: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1493: }
1.24 albertel 1494: }
1.159 albertel 1495: return '';
1.24 albertel 1496: }
1497:
1.25 albertel 1498: sub end_notsolved {
1.159 albertel 1499: return '';
1.24 albertel 1500: }
1501:
1502: sub start_solved {
1.326 albertel 1503: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1504: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1505: $target eq 'tex') {
1506: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1507: if ($gradestatus !~ /^correct/ ||
1508: !&Apache::response::show_answer()) {
1.326 albertel 1509: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1510: }
1.24 albertel 1511: }
1.159 albertel 1512: return '';
1.24 albertel 1513: }
1514:
1515: sub end_solved {
1.248 albertel 1516: return '';
1517: }
1518:
1519: sub start_problemtype {
1.326 albertel 1520: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1521: my $result;
1.339 albertel 1522: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1523: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1524: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1525: if (!defined($mode)) { $mode='show'; }
1526: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1527: my $found=0;
1528: foreach my $type (split(',',$for)) {
1529: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1530: }
1531: if ($mode eq 'show' && !$found) {
1.326 albertel 1532: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1533: }
1534: if ($mode eq 'hide' && $found) {
1.326 albertel 1535: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1536: }
1537: } elsif ($target eq 'edit') {
1538: $result .=&Apache::edit::tag_start($target,$token);
1539: $result.=&Apache::edit::select_arg('Mode:','mode',
1540: [['show','Show'],
1541: ['hide','Hide']]
1542: ,$token);
1543: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1544: [ ['exam','Exam/Quiz Problem'],
1545: ['survey','Survey'],
1546: ['problem','Homework Problem'] ]
1547: ,$token);
1548: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1549: } elsif ($target eq 'modified') {
1550: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1551: $safeeval,'mode','for');
1552: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1553: }
1554: return $result;
1555: }
1556:
1557: sub end_problemtype {
1.159 albertel 1558: return '';
1.24 albertel 1559: }
1.34 albertel 1560:
1561: sub start_startouttext {
1.159 albertel 1562: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1563: my @result=(''.'');
1564: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1565: return (@result);
1.34 albertel 1566: }
1.159 albertel 1567:
1.34 albertel 1568: sub end_startouttext {
1.326 albertel 1569: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1570: my $result='';
1571: my $text='';
1572:
1573: if ($target eq 'edit') {
1.326 albertel 1574: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1575: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1576: <td>".&mt('Delete:').
1.159 albertel 1577: &Apache::edit::deletelist($target,$token)
1578: ."</td>
1.42 albertel 1579: <td>".
1.159 albertel 1580: &Apache::edit::insertlist($target,$token).
1581: &Apache::edit::end_row().
1582: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1583: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1584: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1585: }
1586: if ($target eq 'modified') {
1.219 albertel 1587: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1588: }
1589: if ($target eq 'tex') {
1590: $result .= '\noindent ';
1591: }
1592: return $result;
1.34 albertel 1593: }
1.159 albertel 1594:
1.34 albertel 1595: sub start_endouttext {
1.159 albertel 1596: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1597: my $result='';
1598: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1599: if ($target eq "modified") {
1600: $result='<endouttext />'.
1601: &Apache::edit::handle_insertafter('startouttext'); }
1602: return $result;
1.34 albertel 1603: }
1.159 albertel 1604:
1.34 albertel 1605: sub end_endouttext {
1.159 albertel 1606: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1607: my @result=('','');
1608: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1609: return (@result);
1.34 albertel 1610: }
1.159 albertel 1611:
1.45 albertel 1612: sub delete_startouttext {
1.326 albertel 1613: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1614: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1615: my $text=$$parser['-1']->get_text("/endouttext");
1616: my $ntoken=$$parser['-1']->get_token();
1617: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1618: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1619: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1620: # they did the last time round
1621: &Apache::lonxml::increasedepth($ntoken);
1622: &Apache::lonxml::decreasedepth($ntoken);
1623: return 1;
1.193 www 1624: }
1625:
1626: sub start_simpleeditbutton {
1627: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1628: my $result='';
1.284 albertel 1629: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1630: ($target eq 'web') &&
1.330 albertel 1631: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1632: my $url=$env{'request.noversionuri'};
1.193 www 1633: $url=~s/\?.*$//;
1.278 albertel 1634: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1635: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1636: '<a href="'.$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 1637: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1638: }
1639: return $result;
1640: }
1641:
1642: sub end_simpleeditbutton {
1643: return '';
1.45 albertel 1644: }
1.34 albertel 1645:
1.1 albertel 1646: 1;
1647: __END__
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