Annotation of loncom/homework/structuretags.pm, revision 1.388
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.388 ! foxr 4: # $Id: structuretags.pm,v 1.387 2007/08/08 19:13:19 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 );
1.356 www 41: use lib '/home/httpd/lib/perl/';
42: use LONCAPA;
43:
1.78 harris41 44: BEGIN {
1.248 albertel 45: &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 46: }
47:
48: sub start_web {
1.326 albertel 49: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 50: if ($target ne 'edit' && $target ne 'modified') {
51: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
52: if ($target eq 'web' || $target eq 'webgrade') {
53: return $bodytext;
54: }
55: } elsif ($target eq "edit" ) {
56: my $bodytext =
57: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
58: my $result = &Apache::edit::tag_start($target,$token);
59: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
60: return $result;
61: } elsif ( $target eq "modified" ) {
62: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 63: }
64: return '';
1.10 albertel 65: }
66:
67: sub end_web {
1.44 ng 68: return '';
1.10 albertel 69: }
70:
71: sub start_tex {
1.326 albertel 72: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 73: my $result='';
1.383 albertel 74: if ($target ne 'edit' && $target ne 'modified') {
75: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
76: if ($target eq 'tex') {
77: return $bodytext.' ';
78: }
79: } elsif ($target eq "edit" ) {
80: my $bodytext =
81: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
82: my $result = &Apache::edit::tag_start($target,$token);
83: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
84: return $result;
85: } elsif ( $target eq "modified" ) {
86: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 87: }
1.198 sakharuk 88: return $result;;
1.10 albertel 89: }
90:
91: sub end_tex {
1.44 ng 92: return '';
1.9 albertel 93: }
94:
1.48 albertel 95: sub page_start {
1.345 albertel 96: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
97: $extra_head)=@_;
1.159 albertel 98: my %found;
1.207 albertel 99: foreach my $taginside (@$tagstack) {
1.159 albertel 100: foreach my $taglookedfor ('html','body','form') {
101: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
102: }
103: }
104:
1.343 albertel 105: if ($target eq 'tex') {
106: return
107: &Apache::londefdef::start_html($target,$token,$tagstack,
108: $parstack,$parser,$safeeval);
109: }
110:
1.374 albertel 111: $extra_head.= '
112: <script type="text/javascript">
113: function setSubmittedPart (part) {
114: this.document.lonhomework.submitted.value="part_"+part;
115: }
116: </script>
117: ';
118:
1.344 albertel 119: my %body_args;
120: if (defined($found{'html'})) {
121: $body_args{'skip_phases'}{'head'}=1;
122: } else {
1.343 albertel 123:
1.345 albertel 124: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 125:
1.379 albertel 126: $extra_head .= &Apache::londefdef::generate_css_links();
127:
1.384 albertel 128: if ($env{'request.state'} eq 'construct') {
1.343 albertel 129: $extra_head.=&Apache::edit::js_change_detection().
130: "<script type=\"text/javascript\">\n".
131: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
132: &Apache::loncommon::browser_and_searcher_javascript().
133: "\n</script>\n";
134: }
1.159 albertel 135: }
1.343 albertel 136:
1.344 albertel 137: if (defined($found{'body'})) {
138: $body_args{'skip_phases'}{'body'}=1;
139: } elsif (!defined($found{'body'})
140: && $env{'request.state'} eq 'construct') {
1.343 albertel 141: if ($target eq 'web' || $target eq 'edit') {
1.344 albertel 142: # no extra args to bodytag
1.297 albertel 143: }
1.272 albertel 144: } elsif (!defined($found{'body'})) {
1.343 albertel 145: my %add_entries;
1.159 albertel 146: my $background=&Apache::lonxml::get_param('background',$parstack,
147: $safeeval);
1.343 albertel 148: if ($background ne '' ) {
149: $add_entries{'background'} = $background;
150: }
1.344 albertel 151:
1.290 albertel 152: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
153: $safeeval);
1.344 albertel 154: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
155:
156: $body_args{'bgcolor'} = $bgcolor;
157: $body_args{'no_title'} = 1;
158: $body_args{'force_register'} = 1;
159: $body_args{'add_entries'} = \%add_entries;
160: }
1.365 albertel 161: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 162: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
163: \%body_args);
164:
165: if (!defined($found{'body'})
166: && $env{'request.state'} ne 'construct'
167: && ($target eq 'web' || $target eq 'webgrade')) {
168:
1.367 albertel 169: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
1.344 albertel 170: if ($symb eq '' && !$publicuser) {
171: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
172: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
173: $page_start .= $help;
1.159 albertel 174: }
1.344 albertel 175: }
176:
177: if (!defined($found{'body'})) {
1.343 albertel 178: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 179: }
1.344 albertel 180:
1.159 albertel 181: my $form_tag_start;
182: if (!defined($found{'form'})) {
1.337 albertel 183: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.338 albertel 184: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.327 albertel 185: $form_tag_start.=$uri.'" ';
186: if ($target eq 'edit') {
187: $form_tag_start.=&Apache::edit::form_change_detection();
188: }
1.368 albertel 189: $form_tag_start.='>'."\n";
1.355 albertel 190:
191: my $symb=&Apache::lonnet::symbread();
192: if ($symb =~ /\S/) {
193: $symb=
194: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
195: $form_tag_start.=
1.368 albertel 196: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 197: }
1.159 albertel 198: }
1.343 albertel 199: return ($page_start,$form_tag_start);
1.105 albertel 200: }
201:
1.141 matthew 202: #use Time::HiRes();
1.105 albertel 203: sub get_resource_name {
1.159 albertel 204: my ($parstack,$safeeval)=@_;
1.388 ! foxr 205: my $name;
1.204 albertel 206: if (defined($Apache::lonhomework::name)) {
1.388 ! foxr 207: $name = $Apache::lonhomework::name;
! 208: } else {
! 209: my ($symb)=&Apache::lonnet::whichuser();
! 210: my $name=&Apache::lonnet::gettitle($symb);
! 211: if ($name eq '') {
! 212: $name=&Apache::lonnet::EXT('resource.title');
! 213: if ($name eq 'con_lost') { $name = ''; }
! 214: }
! 215: if ($name!~/\S+/) {
! 216: $name=$env{'request.uri'};
! 217: $name=~s-.*/([^/]+)$-$1-;
! 218: }
! 219: # The name has had html tags escaped:
! 220:
! 221: $name=~s/</</gs;
! 222: $name=~s/>/>/gs;
! 223:
! 224: $Apache::lonhomework::name=$name;
1.204 albertel 225: }
1.159 albertel 226: return $name;
1.105 albertel 227: }
228:
229: sub setup_rndseed {
1.159 albertel 230: my ($safeeval)=@_;
231: my $rndseed;
1.367 albertel 232: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 233: if ($env{'request.state'} eq "construct"
234: || $symb eq ''
235: || $Apache::lonhomework::type eq 'practice'
236: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 237: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 238: ['rndseed']);
1.284 albertel 239: $rndseed=$env{'form.rndseed'};
1.159 albertel 240: if (!$rndseed) {
1.162 albertel 241: $rndseed=$Apache::lonhomework::history{'rndseed'};
242: if (!$rndseed) {
243: $rndseed=time;
244: }
1.284 albertel 245: $env{'form.rndseed'}=$rndseed;
1.162 albertel 246: }
1.374 albertel 247: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
248: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 249: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 250: srand(time);
251: $rndseed=int(rand(2100000000));
1.284 albertel 252: $env{'form.rndseed'}=$rndseed;
253: delete($env{'form.resetdata'});
254: delete($env{'form.newrandomization'});
1.159 albertel 255: }
1.187 albertel 256: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 257: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 258: }
1.247 albertel 259: if ($Apache::lonhomework::history{'resource.CODE'}) {
260: $rndseed=&Apache::lonnet::rndseed();
261: }
1.221 albertel 262: if ($safeeval) {
263: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 264: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 265: }
1.159 albertel 266: }
267: return $rndseed;
1.105 albertel 268: }
269:
1.268 albertel 270: sub remember_problem_state {
271: return '
1.284 albertel 272: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
273: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
274: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 275: }
276:
1.105 albertel 277: sub problem_edit_header {
1.268 albertel 278: return '<input type="hidden" name="submitted" value="edit" />'.
279: &Apache::structuretags::remember_problem_state().'
1.210 albertel 280: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 281: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
1.328 albertel 282: <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 283: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
284: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
285: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.359 albertel 286: &Apache::loncommon::help_open_menu('Problem Editing Help','Problem_Editor_XML_Index',5,'Authoring',undef,undef,undef,'Problem Editing Help')
1.260 albertel 287: .'</td></tr></table>'.
1.282 albertel 288: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 289: }
290:
291: sub problem_edit_footer {
1.210 albertel 292: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 293: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
1.348 albertel 294: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 295: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 296: }
297:
1.235 albertel 298: sub option {
299: my ($value,$name) = @_;
300: my $result ="<option value='".$value."' ";
1.284 albertel 301: if ($env{'form.'.$name} eq $value) {
1.235 albertel 302: $result.=" selected='on' ";
303: }
304: $result.='>';
305: return $result;
306: }
307:
1.105 albertel 308: sub problem_web_to_edit_header {
1.159 albertel 309: my ($rndseed)=@_;
1.313 albertel 310: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
1.373 albertel 311: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
1.313 albertel 312: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 313: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
314: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 315: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 316: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 317: $rndseed.'"
1.270 albertel 318: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.384 albertel 319: <span class="LC_nobreak"><label><input type="checkbox" name="showallfoils" ';
1.315 albertel 320: my $show_all_foils_text =
321: ($Apache::lonhomework::parsing_a_task) ?
322: &mt(' Show All Instances')
323: : &mt(' Show All Foils');
324:
1.284 albertel 325: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.384 albertel 326: $result.= ' />'.$show_all_foils_text.'</label></span>'.
1.228 www 327: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.371 albertel 328: '<hr />';
1.386 albertel 329: $result.=&mt('Apply style file: ').'
1.384 albertel 330: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
331: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
332: <input type="submit" name="clear_style_file" value="'.&mt('Clear').'" />
333: <br />';
334:
1.313 albertel 335: if (!$Apache::lonhomework::parsing_a_task) {
336: $result.="
1.235 albertel 337: <nobr>
338: Problem Status:
339: <select name='problemstate'>
1.270 albertel 340: <option value=''></option>
1.235 albertel 341: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
342: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
343: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
344: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
345: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
346: </select>
347: </nobr>
348: <nobr>
349: Problem Type:
350: <select name='problemtype'>
1.270 albertel 351: <option value=''></option>
1.242 albertel 352: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
353: ".&option('problem','problemtype').&mt("Homework problem")."</option>
354: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 355: </select>
356: </nobr>
357: <nobr>
358: Feedback Mode:
359: <select name='problemstatus'>
360: <option value=''></option>
1.242 albertel 361: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
362: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 363: </select>
364: </nobr>
1.242 albertel 365: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 366: <hr />";
1.313 albertel 367: my $numtoanalyze=$env{'form.numtoanalyze'};
368: if (!$numtoanalyze) { $numtoanalyze=20; }
369: $result.= '<input type="submit" name="problemmode" value='.
370: &mt('"Calculate answers').'" /> for
1.136 albertel 371: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 372: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
373: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 374: '',undef,undef,300).
1.210 albertel 375: '<hr />';
1.376 albertel 376: } elsif ($Apache::lonhomework::parsing_a_task) {
377: $result.="
378: <nobr>
379: Problem Status:
380: <select name='problemstate'>
381: <option value=''></option>
382: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
383: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
384: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
385: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
386: </select>
387: </nobr>
388: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
389: <hr />";
1.313 albertel 390: }
1.159 albertel 391: return $result;
1.48 albertel 392: }
393:
1.65 albertel 394: sub initialize_storage {
1.357 albertel 395: my ($given_symb) = @_;
1.353 albertel 396: undef(%Apache::lonhomework::results);
397: undef(%Apache::lonhomework::history);
1.357 albertel 398: my ($symb,$courseid,$domain,$name) =
1.367 albertel 399: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 400:
401: # anonymous users (CODEd exams) have no data
402: if ($name eq 'anonymous'
403: && !defined($domain)) {
404: return;
405: }
406:
1.333 albertel 407: if ($env{'request.state'} eq 'construct'
408: || $symb eq ''
409: || $Apache::lonhomework::type eq 'practice') {
410:
411: my $namespace = $symb || $env{'request.uri'};
412: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 413: ($env{'form.resetdata'} eq &mt('New Problem Variation')
414: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 415: $env{'form.newrandomization'} eq &mt('New Randomization')) {
416: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
417: &Apache::lonxml::debug("Attempt reset");
418: }
1.159 albertel 419: %Apache::lonhomework::history=
1.333 albertel 420: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 421: my ($temp)=keys %Apache::lonhomework::history ;
422: &Apache::lonxml::debug("Return message of $temp");
423: } else {
424: %Apache::lonhomework::history=
425: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
426: }
1.353 albertel 427:
1.159 albertel 428: #ignore error conditions
1.67 albertel 429: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 430: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 431: }
432:
433: # -------------------------------------------------------------finalize_storage
434: # Stores away the result has to a student's environment
435: # checks form.grade_ for specific values, other wises stores
436: # to the running users environment
1.285 raeburn 437: # Will increment totals for attempts, students, and corrects
438: # if running user has student role.
1.65 albertel 439: sub finalize_storage {
1.357 albertel 440: my ($given_symb) = @_;
1.159 albertel 441: my $result;
1.289 albertel 442: if (%Apache::lonhomework::results) {
1.323 albertel 443: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
444: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 445: my ($symb,$courseid,$domain,$name) =
1.367 albertel 446: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 447: if ($env{'request.state'} eq 'construct'
448: || $symb eq ''
449: || $Apache::lonhomework::type eq 'practice') {
450: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 451: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 452: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 453: $namespace,'',$domain,$name);
1.159 albertel 454: &Apache::lonxml::debug('Construct Store return message:'.$result);
455: } else {
456: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
457: $symb,$courseid,$domain,$name);
458: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 459: if ($env{'request.role'} =~/^st/) {
460: &store_aggregates($symb,$courseid);
461: }
1.159 albertel 462: }
1.323 albertel 463: } else {
464: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 465: }
1.159 albertel 466: return $result;
1.65 albertel 467: }
468:
1.285 raeburn 469: # -------------------------------------------------------------store_aggregates
470: # Sends hash of values to be incremented in nohist_resourcetracker.db
471: # for the course. Increments total number of attempts, unique students
472: # and corrects for each part for an instance of a problem, as appropriate.
473: sub store_aggregates {
474: my ($symb,$courseid) = @_;
1.286 albertel 475: my %aggregate;
476: my @parts;
1.288 albertel 477: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
478: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 479: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 480: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 481: push(@parts, $1);
1.285 raeburn 482: }
483: }
1.286 albertel 484: foreach my $part (@parts) {
485: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
486: eq 'APPROX_ANS' ||
487: $Apache::lonhomework::results{'resource.'.$part.'.award'}
488: eq 'EXACT_ANS') {
1.287 albertel 489: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 490: }
1.286 albertel 491: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 492: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 493: } else {
1.293 albertel 494: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 495: if ($last_reset) {
1.293 albertel 496: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 497: $aggregate{$symb."\0".$part."\0users"} = 1;
498: }
499: }
1.285 raeburn 500: }
1.287 albertel 501: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 502: }
1.292 raeburn 503: if (keys (%aggregate) > 0) {
1.289 albertel 504: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 505: $cdomain,$cname);
506: }
507: }
1.289 albertel 508:
1.65 albertel 509: sub checkout_msg {
1.211 albertel 510: my %lt=&Apache::lonlocal::texthash(
511: 'resource'=>'The resource needs to be checked out',
512: '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.',
513: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
514: 'checkout'=>'Check out Exam for Viewing',
515: 'checkout?'=>'Check out Exam?');
1.352 albertel 516: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 517: return (<<ENDCHECKOUT);
1.211 albertel 518: <h2>$lt{'resource'}</h2>
519: <p>$lt{'id_expln'}</p>
520: <font color="red">
521: <p>$lt{'warning'}</p>
1.91 albertel 522: </font>
1.352 albertel 523: <form name="checkout" method="POST" action="$uri">
1.91 albertel 524: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 525: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 526: </form>
527: ENDCHECKOUT
528: }
529:
1.252 albertel 530: sub firstaccess_msg {
1.253 albertel 531: my ($time,$symb)=@_;
532: my ($map)=&Apache::lonnet::decode_symb($symb);
533: my $foldertitle=&Apache::lonnet::gettitle($map);
534: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.352 albertel 535: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.252 albertel 536: return (<<ENDCHECKOUT);
1.253 albertel 537: <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 538: <form name="markaccess" method="POST" action="$uri">
1.252 albertel 539: <input type="hidden" name="markaccess" value="yes" />
540: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
541: </form>
542: ENDCHECKOUT
543: }
544:
1.204 albertel 545: sub init_problem_globals {
546: my ($type)=@_;
547: #initialize globals
1.308 foxr 548: # For problems, we start out in part 0 (outside a <part> tag).
549: # and part 0 is used to describe the main body of the <problem>
550: #
1.204 albertel 551: if ($type eq 'problem') {
552: $Apache::inputtags::part='0';
553: @Apache::inputtags::partlist=('0');
1.266 albertel 554: $Apache::lonhomework::problemstatus=&get_problem_status('0');
555: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 556:
1.266 albertel 557: } elsif ($type eq 'library') {
1.204 albertel 558: $Apache::inputtags::part='';
559: @Apache::inputtags::partlist=();
560: $Apache::lonhomework::problemstatus='';
1.266 albertel 561: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 562:
1.304 albertel 563: } elsif ($type eq 'Task') {
564: $Apache::inputtags::part='0';
565: @Apache::inputtags::partlist=('0');
566: $Apache::lonhomework::problemstatus='';
567: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 568: }
569: @Apache::inputtags::responselist = ();
570: @Apache::inputtags::importlist = ();
571: @Apache::inputtags::previous=();
572: @Apache::inputtags::previous_version=();
573: $Apache::structuretags::printanswer='No';
574: @Apache::structuretags::whileconds=();
575: @Apache::structuretags::whilebody=();
576: @Apache::structuretags::whileline=();
577: $Apache::lonhomework::scantronmode=0;
578: undef($Apache::lonhomework::name);
1.358 albertel 579: undef($Apache::lonhomework::default_type);
580: undef($Apache::lonhomework::type);
1.204 albertel 581: }
582:
583: sub reset_problem_globals {
584: my ($type)=@_;
585: undef(%Apache::lonhomework::history);
586: undef(%Apache::lonhomework::results);
587: undef($Apache::inputtags::part);
1.208 albertel 588: #don't undef this, lonhomework.pm takes care of this, we use this to
589: #detect if we try to do 2 problems in one file
590: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 591: undef($Apache::lonhomework::name);
1.358 albertel 592: undef($Apache::lonhomework::default_type);
593: undef($Apache::lonhomework::type);
594: undef($Apache::lonhomework::scantronmode);
595: undef($Apache::lonhomework::problemstatus);
596: undef($Apache::lonhomework::ignore_response_errors);
1.204 albertel 597: }
598:
1.241 albertel 599: sub set_problem_state {
1.240 albertel 600: my ($part)=@_;
1.284 albertel 601: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 602: $Apache::lonhomework::history{"resource.$part.solved"}=
603: 'correct_by_student';
604: }
605: }
606:
1.241 albertel 607: sub get_problem_status {
608: my ($part)=@_;
1.267 albertel 609: my $problem_status;
1.284 albertel 610: if ($env{'request.state'} eq 'construct' &&
611: defined($env{'form.problemstatus'})) {
612: $problem_status=$env{'form.problemstatus'};
1.267 albertel 613: } else {
614: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
615: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 616: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 617: }
618: return $problem_status;
619: }
620:
1.9 albertel 621: sub start_problem {
1.326 albertel 622: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 623:
1.311 foxr 624: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 625: if (!$Apache::lonxml::metamode) {
626: &Apache::lonxml::startredirection();
627: }
1.311 foxr 628:
1.308 foxr 629: # Problems don't nest and we don't allow more than one <problem> in
630: # a .problem file.
631: #
1.184 albertel 632: if ( $Apache::inputtags::part ne '' ||
633: $Apache::lonhomework::parsing_a_problem) {
634: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 635: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 636: return '';
637: }
1.184 albertel 638:
639: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 640: &init_problem_globals('problem');
1.166 albertel 641:
1.284 albertel 642: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 643: $Apache::lonhomework::scantronmode=1;
644: }
1.161 albertel 645:
1.159 albertel 646: if ($target ne 'analyze') {
1.284 albertel 647: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 648: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 649: if (($env{'request.state'} eq 'construct') &&
650: defined($env{'form.problemtype'})) {
651: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 652: }
1.332 albertel 653: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 654: }
1.164 albertel 655: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 656: my $uri=$env{'request.uri'};
1.159 albertel 657: if ($uri=~/\.(\w+)$/) {
658: $Apache::lonhomework::type=$1;
659: &Apache::lonxml::debug("Using type of $1");
660: } else {
661: $Apache::lonhomework::type='problem';
662: &Apache::lonxml::debug("Using default type, problem, :$uri:");
663: }
1.87 albertel 664: }
1.301 albertel 665: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 666:
1.363 albertel 667: &initialize_storage();
1.366 albertel 668: if ($target eq 'web') {
669: &Apache::lonxml::debug(" grading history ");
670: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
671: }
1.363 albertel 672:
1.159 albertel 673: #added vars to the scripting enviroment
1.213 albertel 674: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 675: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 676: &Apache::run::run($expression,$safeeval);
1.159 albertel 677: my $status;
678: my $accessmsg;
679:
1.343 albertel 680: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 681: my ($result,$form_tag_start);
1.354 albertel 682: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
683: || $target eq 'edit') {
1.350 albertel 684: ($result,$form_tag_start) =
685: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
686: $name);
687: }
688:
1.284 albertel 689: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 690:
691: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
692: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
693: $target eq 'tex') {
694: #handle exam checkout
695: if ($Apache::lonhomework::type eq 'exam') {
696: my $token=
697: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 698: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 699: $token=&Apache::lonxml::maketoken();
700: $Apache::lonhomework::history{"resource.0.outtoken"}=
701: $token;
702: }
1.343 albertel 703: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 704: }
1.284 albertel 705: if ($env{'form.markaccess'}) {
1.252 albertel 706: &Apache::lonnet::set_first_access('map');
707: }
1.159 albertel 708: #handle rand seed in construction space
709: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 710: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 711: if ($env{'request.state'} ne "construct" &&
712: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 713: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
714: $rndseed.'" />'.
715: '<input type="submit" name="resetdata"
1.334 albertel 716: value="'.&mt('New Problem Variation').'" />';
717: if (exists($env{'form.username'})) {
718: $form_tag_start.=
1.164 albertel 719: '<input type="hidden" name="username"
1.284 albertel 720: value="'.$env{'form.username'}.'" />';
1.334 albertel 721: }
1.333 albertel 722: if ($env{'request.role.adv'}) {
1.267 albertel 723: $form_tag_start.=
1.300 albertel 724: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 725: if (defined($env{'form.showallfoils'})) {
1.267 albertel 726: $form_tag_start.='checked="on"';
727: }
1.300 albertel 728: $form_tag_start.= ' />'.&mt(' Show All Foils').
729: '</label>';
1.267 albertel 730: }
731: $form_tag_start.='<hr />';
1.162 albertel 732: }
1.324 albertel 733:
734: ($status,$accessmsg,my $slot_name,my $slot) =
735: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 736: push (@Apache::inputtags::status,$status);
1.324 albertel 737:
1.159 albertel 738: my $expression='$external::datestatus="'.$status.'";';
739: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
740: &Apache::run::run($expression,$safeeval);
741: &Apache::lonxml::debug("Got $status");
1.324 albertel 742:
1.159 albertel 743: if (( $status eq 'CLOSED' ) ||
744: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 745: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 746: ( $status eq 'BANNED') ||
1.216 albertel 747: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 748: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 749: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 750: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
751: $style);
1.159 albertel 752: if ( $target eq "web" ) {
1.343 albertel 753: my $msg;
1.159 albertel 754: if ($status eq 'UNAVAILABLE') {
1.245 albertel 755: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 756: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 757: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 758: }
1.216 albertel 759: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 760: $msg.='The problem '.$accessmsg;
761: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 762: $msg.=&checkout_msg();
1.252 albertel 763: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 764: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 765: } elsif ($status eq 'NOT_IN_A_SLOT') {
766: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 767: }
768: $result.=$msg.'<br />';
769: } elsif ($target eq 'tex') {
1.332 albertel 770: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
771: : '\begin{minipage}{\textwidth}';
772: $result.='\begin{document}\noindent \vskip 1 mm '.
773: $startminipage.'\vskip 0 mm';
1.159 albertel 774: if ($status eq 'UNAVAILABLE') {
1.211 albertel 775: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 776: } else {
1.211 albertel 777: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 778: }
779: }
1.324 albertel 780: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 781: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
782: $style);
1.324 albertel 783: if ($target eq 'web') {
1.375 albertel 784: $result .=
785: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 786: } elsif ($target eq 'grade') {
787: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
788: 'problem');
789: }
1.159 albertel 790: } elsif ($target eq 'web') {
1.360 albertel 791: if ($status eq 'CAN_ANSWER'
792: && $slot_name ne ''
793: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
794: # unproctored slot access, self checkin
795: &Apache::bridgetask::check_in('problem',undef,undef,
796: $slot_name);
797: }
1.368 albertel 798: $result.="\n $form_tag_start \t".
1.227 albertel 799: '<input type="hidden" name="submitted" value="yes" />';
800: # create a page header and exit
1.284 albertel 801: if ($env{'request.state'} eq "construct") {
802: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 803: }
804: # if we are viewing someone else preserve that info
1.284 albertel 805: if (defined $env{'form.grade_symb'}) {
1.227 albertel 806: foreach my $field ('symb','courseid','domain','username') {
807: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 808: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 809: }
810: }
811: } elsif ($target eq 'tex') {
1.319 foxr 812: $result .= 'INSERTTEXFRONTMATTERHERE';
813:
1.99 sakharuk 814: }
1.159 albertel 815: } elsif ($target eq 'edit') {
1.343 albertel 816: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 817: $Apache::lonxml::warnings_error_header=
818: &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 819: my $temp=&Apache::edit::insertlist($target,$token);
820: $result.=$temp;
821: } elsif ($target eq 'modified') {
822: $result=$token->[4];
823: } else {
824: # page_start returned a starting result, delete it if we don't need it
825: $result = '';
1.99 sakharuk 826: }
1.159 albertel 827: return $result;
1.9 albertel 828: }
829:
830: sub end_problem {
1.159 albertel 831: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 832: my $result;
1.310 foxr 833:
1.321 albertel 834: if (!$Apache::lonxml::metamode) {
835: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 836: $Apache::lonxml::post_evaluate=0;
1.321 albertel 837: }
1.319 foxr 838:
839: if ($target eq 'tex') {
1.321 albertel 840: # Figure out the front matter and replace the
841: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
842: # this in end_problem because whether or not we display due
843: # dates depends on whether due dates have already been
844: # displayed in the problem parts.
845:
1.319 foxr 846: my $frontmatter = '';
847: my $startminipage = '';
848: if (not $env{'form.problem_split'}=~/yes/) {
849: $startminipage = '\begin{minipage}{\textwidth}';
850: }
851: my $id = $Apache::inputtags::part;
852: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
853: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
854: my @packages = split /,/,$packages;
855: my $allow_print_points = 0;
856: foreach my $partial_key (@packages) {
857: if ($partial_key=~m/^part_0$/) {
858: $allow_print_points=1;
859: }
860: }
861: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
862: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
863: if (lc($env{'course.'.$env{'request.course.id'}.
864: '.disableexampointprint'}) eq 'yes') {
865: $allow_print_points=0;
866: }
867: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
868: 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 ';
869: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
870: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
871:
872: # Figure out what the due date is and if we need to print
873: # it in the problem header. We have been logging the
874: # last due date written to file.
875:
876: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
877: my $duedate = POSIX::strftime("%c",localtime($duetime));
878: my $temp_file;
879: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
880:
881: # Figure out what the last printed due date is or set it
882: # to the epoch if no duedates have been printed.
883:
884: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
885: if (-e $filename) {
886: $temp_file = Apache::File->new($filename);
887: my @due_file = <$temp_file>;
888: $due_file_content = $due_file[$#due_file];
889: chomp $due_file_content;
890: }
891:
892: # We display the due date iff it is not the same as the last
893: # duedate in problem header ($due_file_content), and
894: # none of our parts displayed a duedate.
895: #
896: my $parts_with_displayduedate;
897: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
898: $parts_with_displayduedate =
899: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
900: } else {
901: $parts_with_displayduedate = 0;
902: }
903: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
904: $temp_file = Apache::File->new('>'.$filename);
905: print $temp_file "$duetime\n";
906: if (not $env{'request.symb'} =~ m/\.page_/) {
907: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
908: $frontmatter .= $begin_doc.
909: '\textit{Due date: '.$duedate.'} '.$toc_line;
910: } else {
911: $frontmatter.= $begin_doc.$toc_line;
912: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
913: }
914: } else {
1.381 albertel 915: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\'.$startminipage;
1.319 foxr 916: }
917: } else {
918: if (not $env{'request.symb'} =~ m/\.page_/) {
919: $frontmatter .= $begin_doc.$toc_line;
920: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
921: } else {
1.381 albertel 922: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 923: }
924: }
925: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
926: }
927:
1.159 albertel 928: my $status=$Apache::inputtags::status['-1'];
929: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
930: $target eq 'tex') {
1.249 albertel 931: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 932: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 933: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
934: &Apache::inputtags::grade;
1.324 albertel 935: } elsif ($status eq 'NEEDS_CHECKIN') {
936: # no need to grade, and don't want to hide data
1.249 albertel 937: } else {
938: # move any submission data to .hidden
939: &Apache::inputtags::hidealldata($Apache::inputtags::part);
940: }
1.159 albertel 941: } elsif ( ($target eq 'web' || $target eq 'tex') &&
942: $Apache::inputtags::part eq '0' &&
1.252 albertel 943: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 944: # if part is zero, no <part>s existed, so we need show the current
945: # grading status
946: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
947: $result.= $gradestatus;
948: }
949: if (
1.284 albertel 950: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 951: ($target eq 'answer') || ($target eq 'tex')
952: ) {
1.227 albertel 953: if ($target ne 'tex' &&
1.284 albertel 954: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 955: $result.="</form>";
1.348 albertel 956: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 957: }
958: if ($target eq 'web') {
1.346 albertel 959: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 960: } elsif ($target eq 'tex') {
1.178 sakharuk 961: my $endminipage = '';
1.284 albertel 962: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 963: $endminipage = '\end{minipage}';
964: }
1.284 albertel 965: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 966: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 967: } else {
1.262 sakharuk 968: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 969: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 970: $result .= $endminipage.'\end{document} ';
971: } else {
1.382 albertel 972: $result .= $endminipage;
1.262 sakharuk 973: }
1.159 albertel 974: }
975: }
976: }
977: if ($target eq 'grade') {
978: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
979: &finalize_storage();
980: }
1.284 albertel 981: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
982: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 983: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 984: # normally we get it from above, but in CSTR
1.172 albertel 985: # we always show answer mode too.
1.159 albertel 986: }
987: } elsif ($target eq 'meta') {
988: if ($Apache::inputtags::part eq '0') {
1.179 albertel 989: @Apache::inputtags::response=();
1.159 albertel 990: $result=&Apache::response::mandatory_part_meta;
991: }
1.215 albertel 992: $result.=&Apache::response::meta_part_order();
1.258 albertel 993: $result.=&Apache::response::meta_response_order();
1.159 albertel 994: } elsif ($target eq 'edit') {
995: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 996: $result .= &problem_edit_footer();
1.320 albertel 997: } elsif ($target eq 'modified') {
998: $result .= $token->[2];
1.159 albertel 999: }
1.155 albertel 1000:
1.284 albertel 1001: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1002: &Apache::inputtags::check_for_duplicate_ids();
1003: }
1.204 albertel 1004:
1005: &reset_problem_globals('problem');
1.159 albertel 1006:
1007: return $result;
1.48 albertel 1008: }
1009:
1.108 albertel 1010:
1.48 albertel 1011: sub start_library {
1.159 albertel 1012: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1013: my ($result,$form_tag_start);
1.371 albertel 1014: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1015: &init_problem_globals('library');
1016: $Apache::lonhomework::type='problem';
1017: }
1.159 albertel 1018: if ($target eq 'edit') {
1.343 albertel 1019: ($result,$form_tag_start)=
1020: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1021: 'Edit');
1022: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1023: my $temp=&Apache::edit::insertlist($target,$token);
1024: $result.=$temp;
1025: } elsif ($target eq 'modified') {
1026: $result=$token->[4];
1.340 albertel 1027: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1028: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1029: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1030: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1031: ($result,$form_tag_start)=
1032: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1033: $name);
1.159 albertel 1034: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1035: $result.=" \n $form_tag_start".
1.159 albertel 1036: '<input type="hidden" name="submitted" value="yes" />';
1037: $result.=&problem_web_to_edit_header($rndseed);
1038: }
1039: return $result;
1.48 albertel 1040: }
1041:
1042: sub end_library {
1.159 albertel 1043: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1044: my $result='';
1045: if ($target eq 'edit') {
1046: $result=&problem_edit_footer();
1.371 albertel 1047: } elsif ($target eq 'web'
1048: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1049: && $env{'request.state'} eq "construct") {
1.349 albertel 1050: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1051: }
1.371 albertel 1052: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1053: &reset_problem_globals('library');
1054: }
1.159 albertel 1055: return $result;
1.197 www 1056: }
1057:
1058: sub start_definetag {
1.326 albertel 1059: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1060:
1061: my $result;
1062:
1063: my $name = $token->[2]->{'name'};
1.326 albertel 1064: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 1065: if ($name=~/^\//) {
1066: $result=
1067: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
1068: } else {
1069: $result=
1070: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
1071: }
1072: $skip=~s/\</\<\;/gs;
1073: $skip=~s/\>/\>\;/gs;
1074: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1075: return $result;
1076: }
1077:
1078: sub end_definetag {
1079: return '';
1.1 albertel 1080: }
1081:
1082: sub start_block {
1.201 albertel 1083: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1084:
1085: my $result;
1.1 albertel 1086:
1.339 albertel 1087: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1088: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1089: my $code = $token->[2]->{'condition'};
1.385 albertel 1090: if (defined($code) && $code ne '') {
1.137 albertel 1091: if (!$Apache::lonxml::default_homework_loaded) {
1092: &Apache::lonxml::default_homework_load($safeeval);
1093: }
1.131 albertel 1094: $result = &Apache::run::run($code,$safeeval);
1095: &Apache::lonxml::debug("block :$code: returned :$result:");
1096: } else {
1097: $result='1';
1098: }
1099: if ( ! $result ) {
1.201 albertel 1100: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1101: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1102: }
1103: $result='';
1104: } elsif ($target eq 'edit') {
1105: $result .=&Apache::edit::tag_start($target,$token);
1106: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1107: $token,40);
1108: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1109: } elsif ($target eq 'modified') {
1110: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1111: $safeeval,'condition');
1112: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1113: }
1.131 albertel 1114: return $result;
1.1 albertel 1115: }
1116:
1117: sub end_block {
1.167 www 1118: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1119: my $result;
1120: if ($target eq "edit") {
1121: $result.= &Apache::edit::tag_end($target,$token,'');
1122: }
1123: return $result;
1124: }
1125:
1126: sub start_languageblock {
1.201 albertel 1127: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1128:
1129: my $result;
1130:
1.339 albertel 1131: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1132: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1133: my $include = $token->[2]->{'include'};
1134: my $exclude = $token->[2]->{'exclude'};
1135: my %languages=&Apache::loncommon::display_languages();
1136: $result='1';
1137: if ($include) {
1138: $result='';
1139: foreach (split(/\,/,$include)) {
1140: if ($languages{$_}) { $result='1'; }
1141: }
1142: }
1143: if ($exclude) {
1144: foreach (split(/\,/,$exclude)) {
1145: if ($languages{$_}) { $result='0'; }
1146: }
1147: }
1148: if ( ! $result ) {
1149: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1150: $style);
1151: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1152: }
1153: $result='';
1.167 www 1154: } elsif ($target eq 'edit') {
1155: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1156: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1157: $token,40);
1.211 albertel 1158: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1159: $token,40);
1160: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1161: } elsif ($target eq 'modified') {
1162: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1163: $safeeval,'include',
1164: 'exclude');
1.167 www 1165: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1166: }
1167: return $result;
1168: }
1169:
1170: sub end_languageblock {
1.170 www 1171: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1172: my $result;
1.201 albertel 1173: if ($target eq "edit") {
1.170 www 1174: $result.= &Apache::edit::tag_end($target,$token,'');
1175: }
1176: return $result;
1177: }
1178:
1179: sub start_instructorcomment {
1.201 albertel 1180: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1181:
1182: my $result;
1183:
1.339 albertel 1184: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1185: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1186: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1187: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1188: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1189: $parser,$style);
1.170 www 1190: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1191: }
1192: $result='';
1193: } elsif ($target eq 'edit') {
1194: $result .=&Apache::edit::tag_start($target,$token);
1195: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1196: }
1197: return $result;
1198: }
1199:
1200: sub end_instructorcomment {
1.159 albertel 1201: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1202: my $result;
1203: if ($target eq "edit") {
1204: $result.= &Apache::edit::tag_end($target,$token,'');
1205: }
1206: return $result;
1.4 tsai 1207: }
1208:
1209: sub start_while {
1.326 albertel 1210: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1211:
1.160 albertel 1212: my $result;
1.339 albertel 1213: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1214: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1215: my $code = $token->[2]->{'condition'};
1.4 tsai 1216:
1.160 albertel 1217: push( @Apache::structuretags::whileconds, $code);
1218: if (!$Apache::lonxml::default_homework_loaded) {
1219: &Apache::lonxml::default_homework_load($safeeval);
1220: }
1221: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1222: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1223: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1224: push( @Apache::structuretags::whileline, $token->[5]);
1225: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1226: if ( $result ) {
1227: &Apache::lonxml::newparser($parser,\$bodytext);
1228: }
1229: } elsif ($target eq 'edit') {
1230: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1231: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1232: $token,40);
1233: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1234: } elsif ($target eq 'modified') {
1235: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1236: $safeeval,'condition');
1237: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1238: }
1.160 albertel 1239: return $result;
1.4 tsai 1240: }
1241:
1242: sub end_while {
1.159 albertel 1243: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1244: my $result;
1245:
1.339 albertel 1246: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1247: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1248: my $code = pop(@Apache::structuretags::whileconds);
1249: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1250: my $line = pop(@Apache::structuretags::whileline);
1251: my $return = &Apache::run::run($code,$safeeval);
1252: my $starttime=time;
1253: my $error=0;
1254: while ($return) {
1255: if (time-$starttime >
1256: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1257: $return = 0; $error=1; next;
1.161 albertel 1258: }
1259: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1260: if ($target eq 'grade' || $target eq 'answer' ||
1261: $target eq 'analyze') {
1262: # grade/answer/analyze should produce no output but if we
1263: # are redirecting, the redirecter should know what to do
1264: # with the output
1265: if (!$Apache::lonxml::redirection) { undef($result); }
1266: }
1.161 albertel 1267: $return = &Apache::run::run($code,$safeeval);
1268: }
1269: if ($error) {
1.270 albertel 1270: &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 1271: }
1272: } elsif ($target eq "edit") {
1273: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1274: }
1.160 albertel 1275: return $result;
1.1 albertel 1276: }
1.6 tsai 1277:
1.160 albertel 1278: # <randomlist show="1">
1.6 tsai 1279: # <tag1>..</tag1>
1280: # <tag2>..</tag2>
1281: # <tag3>..</tag3>
1.160 albertel 1282: # ...
1.6 tsai 1283: # </randomlist>
1284: sub start_randomlist {
1.326 albertel 1285: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1286: my $result;
1.339 albertel 1287: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1288: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1289: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1290: my $b_parser= HTML::LCParser->new(\$body);
1291: $b_parser->xml_mode(1);
1292: $b_parser->marked_sections(1);
1.159 albertel 1293: my $b_tok;
1294: my @randomlist;
1295: my $list_item;
1296: while($b_tok = $b_parser->get_token() ) {
1297: if($b_tok->[0] eq 'S') { # start tag
1298: # get content of the tag until matching end tag
1299: # get all text upto the matching tag
1300: # and push the content into @randomlist
1301: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1302: $b_parser);
1303: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1304: push(@randomlist,$list_item);
1305: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1306: # $list_item</b>";
1307: }
1308: if($b_tok->[0] eq 'T') { # text
1309: # what to do with text in between tags?
1310: # print "<b>TEXT $b_tok->[1]</b><br />";
1311: }
1312: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1313: # print "<b>END-TAG $b_tok->[1]</b><br />";
1314: # }
1315: }
1.303 albertel 1316: if (@randomlist) {
1317: my @idx_arr = (0 .. $#randomlist);
1318: &Apache::structuretags::shuffle(\@idx_arr);
1319: my $bodytext = '';
1320: my $show=$#randomlist;
1321: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1322: $showarg--;
1323: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1324: for(0 .. $show) {
1325: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1326: }
1327: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1328: }
1329: } elsif ($target eq 'edit' ) {
1330: $result .=&Apache::edit::tag_start($target,$token);
1331: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1332: $token,5);
1333: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1334: } elsif ($target eq 'modified' ) {
1335: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1336: $safeeval,'show');
1337: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1338: }
1339: return $result;
1.7 tsai 1340: }
1341:
1342: sub shuffle {
1343: my $a=shift;
1344: my $i;
1.303 albertel 1345: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1346: &Apache::response::pushrandomnumber();
1.159 albertel 1347: for($i=@$a;--$i;) {
1348: my $j=int(&Math::Random::random_uniform() * ($i+1));
1349: next if $i == $j;
1350: @$a[$i,$j] = @$a[$j,$i];
1351: }
1.251 albertel 1352: &Apache::response::poprandomnumber();
1.7 tsai 1353: }
1.6 tsai 1354: }
1355:
1356: sub end_randomlist {
1.159 albertel 1357: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1358: my $result;
1359: if ($target eq 'edit' ) {
1360: $result=&Apache::edit::tag_end($target,$token,
1361: 'End Randomly Parsed Block');
1362: }
1363: return $result;
1.6 tsai 1364: }
1365:
1.283 albertel 1366: sub ordered_show_check {
1367: my $last_part=$Apache::inputtags::partlist[-2];
1368: my $in_order=
1369: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1370: my $in_order_show=1;
1371: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1372: $in_order_show=&Apache::response::check_status($last_part);
1373: }
1374: return $in_order_show;
1375: }
1376:
1.11 albertel 1377: sub start_part {
1.326 albertel 1378: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1379: if (!$Apache::lonxml::metamode) {
1380: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1381: # duedates.
1382: }
1.159 albertel 1383: my $result='';
1.386 albertel 1384: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1385: $Apache::inputtags::part=$id;
1.177 albertel 1386: push(@Apache::inputtags::partlist,$id);
1387: @Apache::inputtags::response=();
1.159 albertel 1388: @Apache::inputtags::previous=();
1389: @Apache::inputtags::previous_version=();
1.241 albertel 1390: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1391: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1392: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1393: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1394: my $in_order_show=&ordered_show_check();
1.214 albertel 1395: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1396: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1397: &Apache::run::run($expression,$safeeval);
1.159 albertel 1398:
1399: if ($target eq 'meta') {
1.224 www 1400: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1401: return &Apache::response::mandatory_part_meta.
1402: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1403: } elsif ($target eq 'web' || $target eq 'grade' ||
1404: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1405: if ($hidden || !$in_order_show) {
1.326 albertel 1406: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1407: } else {
1408: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1409: push (@Apache::inputtags::status,$status);
1410: my $expression='$external::datestatus="'.$status.'";';
1411: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1412: &Apache::run::run($expression,$safeeval);
1.284 albertel 1413: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1414: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1415: }
1.216 albertel 1416: if (( $status eq 'CLOSED' ) ||
1417: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1418: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1419: ( $status eq 'BANNED') ||
1420: ( $status eq 'UNAVAILABLE') ||
1421: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1422: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1423: $style);
1.159 albertel 1424: if ( $target eq "web" ) {
1.211 albertel 1425: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1426: } elsif ( $target eq 'tex' ) {
1.284 albertel 1427: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1428: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1429: } else {
1.211 albertel 1430: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1431: }
1.159 albertel 1432: }
1433: } else {
1434: if ($target eq 'tex') {
1.284 albertel 1435: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1436: if ($$tagstack[-2] eq 'td') {
1.388 ! foxr 1437: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1438: } else {
1439: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1440: }
1.195 sakharuk 1441: }
1.159 albertel 1442: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1443: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1444: my @allkeys = split /,/,$allkeys;
1445: my $allow_print_points = 0;
1446: foreach my $partial_key (@allkeys) {
1.230 albertel 1447: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1448: if ($1 ne '0') {$allow_print_points=1;}
1449: }
1450: }
1.275 albertel 1451: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1452: if (defined($maxtries) && $maxtries < 0) {
1453: $allow_print_points=0;
1454: }
1.302 albertel 1455: if (lc($env{'course.'.$env{'request.course.id'}.
1456: '.disableexampointprint'}) eq 'yes') {
1457: $allow_print_points=0;
1458: }
1.222 sakharuk 1459: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1460: } elsif ($target eq 'web') {
1.356 www 1461: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1462: }
1463: }
1464: }
1465: } elsif ($target eq 'edit') {
1466: $result.=&Apache::edit::tag_start($target,$token);
1467: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1468: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1469: ' '.
1470: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1471: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1472: } elsif ($target eq 'modified') {
1473: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1474: $safeeval,'id','display');
1.159 albertel 1475: if ($constructtag) {
1.225 albertel 1476: #limiting ids to only letters numbers, and space
1.224 www 1477: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1478: $result = &Apache::edit::rebuild_tag($token);
1479: }
1480: }
1481: return $result;
1.11 albertel 1482: }
1483:
1484: sub end_part {
1.159 albertel 1485: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1486: &Apache::lonxml::debug("in end_part $target ");
1487: my $status=$Apache::inputtags::status['-1'];
1488: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1489: my $in_order_show=&ordered_show_check();
1.321 albertel 1490: my $result;
1491: if (!$Apache::lonxml::metamode) {
1492: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1493: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1494: }
1.312 albertel 1495: if ($target eq 'grade') {
1.249 albertel 1496: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1497: !$hidden && $in_order_show) {
1.311 foxr 1498: $result.=&Apache::inputtags::grade;
1.249 albertel 1499: } else {
1500: # move any submission data to .hidden
1501: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1502: }
1.283 albertel 1503: } elsif (($target eq 'web' || $target eq 'tex') &&
1504: !$hidden && $in_order_show) {
1.159 albertel 1505: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1506: $target);
1.212 albertel 1507: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1508: $gradestatus='';
1509: }
1.311 foxr 1510: $result.=$gradestatus;
1.265 sakharuk 1511: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1512: } elsif ($target eq 'edit') {
1.311 foxr 1513: $result.=&Apache::edit::end_table();
1.322 albertel 1514: } elsif ($target eq 'modified') {
1515: $result .= $token->[2];
1.159 albertel 1516: }
1517: pop @Apache::inputtags::status;
1518: $Apache::inputtags::part='';
1.295 albertel 1519: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1520: return $result;
1.11 albertel 1521: }
1.1 albertel 1522:
1.25 albertel 1523: sub start_preduedate {
1.326 albertel 1524: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1525: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1526: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1527: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1528: if (!$Apache::lonhomework::scantronmode &&
1529: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1530: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1531: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1532: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1533: }
1.24 albertel 1534: }
1.159 albertel 1535: return '';
1.24 albertel 1536: }
1537:
1.25 albertel 1538: sub end_preduedate {
1.159 albertel 1539: return '';
1.24 albertel 1540: }
1541:
1.369 foxr 1542: # In all the modes where <postanswerdate> text is
1543: # displayable, all we do is eat up the text between the start/stop
1544: # tags if the conditions are not right to display it.
1.25 albertel 1545: sub start_postanswerdate {
1.326 albertel 1546: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1547: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1548: &Apache::lonnet::allowed('pav',
1549: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1550: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1551: $target eq 'tex' ) {
1.300 albertel 1552: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1553: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1554: (($target eq 'tex') && !$pav)) {
1.326 albertel 1555: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1556: }
1557: }
1558: return '';
1.24 albertel 1559: }
1560:
1.25 albertel 1561: sub end_postanswerdate {
1.159 albertel 1562: return '';
1.24 albertel 1563: }
1564:
1.25 albertel 1565: sub start_notsolved {
1.326 albertel 1566: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1567: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1568: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1569: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1570: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1571: if ($gradestatus =~ /^correct/ &&
1572: &Apache::response::show_answer()) {
1.159 albertel 1573: &Apache::lonxml::debug("skipping");
1.326 albertel 1574: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1575: }
1.24 albertel 1576: }
1.159 albertel 1577: return '';
1.24 albertel 1578: }
1579:
1.25 albertel 1580: sub end_notsolved {
1.159 albertel 1581: return '';
1.24 albertel 1582: }
1583:
1584: sub start_solved {
1.326 albertel 1585: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1586: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1587: $target eq 'tex') {
1588: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1589: if ($gradestatus !~ /^correct/ ||
1590: !&Apache::response::show_answer()) {
1.326 albertel 1591: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1592: }
1.24 albertel 1593: }
1.159 albertel 1594: return '';
1.24 albertel 1595: }
1596:
1597: sub end_solved {
1.248 albertel 1598: return '';
1599: }
1600:
1601: sub start_problemtype {
1.326 albertel 1602: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1603: my $result;
1.339 albertel 1604: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1605: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1606: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1607: if (!defined($mode)) { $mode='show'; }
1608: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1609: my $found=0;
1610: foreach my $type (split(',',$for)) {
1611: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1612: }
1613: if ($mode eq 'show' && !$found) {
1.326 albertel 1614: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1615: }
1616: if ($mode eq 'hide' && $found) {
1.326 albertel 1617: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1618: }
1619: } elsif ($target eq 'edit') {
1620: $result .=&Apache::edit::tag_start($target,$token);
1621: $result.=&Apache::edit::select_arg('Mode:','mode',
1622: [['show','Show'],
1623: ['hide','Hide']]
1624: ,$token);
1625: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1626: [ ['exam','Exam/Quiz Problem'],
1627: ['survey','Survey'],
1628: ['problem','Homework Problem'] ]
1629: ,$token);
1630: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1631: } elsif ($target eq 'modified') {
1632: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1633: $safeeval,'mode','for');
1634: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1635: }
1636: return $result;
1637: }
1638:
1639: sub end_problemtype {
1.159 albertel 1640: return '';
1.24 albertel 1641: }
1.34 albertel 1642:
1643: sub start_startouttext {
1.159 albertel 1644: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1645: my @result=(''.'');
1646: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1647: return (@result);
1.34 albertel 1648: }
1.159 albertel 1649:
1.34 albertel 1650: sub end_startouttext {
1.326 albertel 1651: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1652: my $result='';
1653: my $text='';
1654:
1655: if ($target eq 'edit') {
1.326 albertel 1656: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1657: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1658: <td>".&mt('Delete:').
1.159 albertel 1659: &Apache::edit::deletelist($target,$token)
1660: ."</td>
1.42 albertel 1661: <td>".
1.159 albertel 1662: &Apache::edit::insertlist($target,$token).
1.362 albertel 1663: '</td><td align="right" valign="top">' .
1664: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1665: &Apache::edit::end_row().
1.362 albertel 1666: &Apache::edit::start_spanning_row()."\n".
1.255 www 1667: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1668: }
1669: if ($target eq 'modified') {
1.219 albertel 1670: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1671: }
1672: if ($target eq 'tex') {
1673: $result .= '\noindent ';
1674: }
1675: return $result;
1.34 albertel 1676: }
1.159 albertel 1677:
1.34 albertel 1678: sub start_endouttext {
1.159 albertel 1679: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1680: my $result='';
1681: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1682: if ($target eq "modified") {
1683: $result='<endouttext />'.
1.377 albertel 1684: &Apache::edit::handle_insertafter('startouttext');
1685: }
1.159 albertel 1686: return $result;
1.34 albertel 1687: }
1.159 albertel 1688:
1.34 albertel 1689: sub end_endouttext {
1.159 albertel 1690: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1691: my @result=('','');
1692: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1693: return (@result);
1.34 albertel 1694: }
1.159 albertel 1695:
1.45 albertel 1696: sub delete_startouttext {
1.326 albertel 1697: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1698: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1699: my $text=$$parser['-1']->get_text("/endouttext");
1700: my $ntoken=$$parser['-1']->get_token();
1701: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1702: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1703: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1704: # they did the last time round
1705: &Apache::lonxml::increasedepth($ntoken);
1706: &Apache::lonxml::decreasedepth($ntoken);
1707: return 1;
1.193 www 1708: }
1709:
1710: sub start_simpleeditbutton {
1711: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1712: my $result='';
1.284 albertel 1713: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1714: ($target eq 'web') &&
1.330 albertel 1715: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1716: my $url=$env{'request.noversionuri'};
1.193 www 1717: $url=~s/\?.*$//;
1.367 albertel 1718: my ($symb) = &Apache::lonnet::whichuser();
1.194 www 1719: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.356 www 1720: '<a href="'.$url.'/smpedit?symb='.&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 1721: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1722: }
1723: return $result;
1724: }
1725:
1726: sub end_simpleeditbutton {
1727: return '';
1.45 albertel 1728: }
1.34 albertel 1729:
1.1 albertel 1730: 1;
1731: __END__
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