Annotation of loncom/homework/structuretags.pm, revision 1.389
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.389 ! albertel 4: # $Id: structuretags.pm,v 1.388 2007/08/10 11:35:57 foxr 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 = $Apache::lonhomework::type;
1.58 www 666:
1.363 albertel 667: &initialize_storage();
1.389 ! albertel 668: if ($target ne 'analyze'
! 669: && $env{'request.state'} eq 'construct') {
! 670: &set_problem_state('0');
! 671: }
! 672:
1.366 albertel 673: if ($target eq 'web') {
674: &Apache::lonxml::debug(" grading history ");
675: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
676: }
1.363 albertel 677:
1.159 albertel 678: #added vars to the scripting enviroment
1.213 albertel 679: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 680: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 681: &Apache::run::run($expression,$safeeval);
1.159 albertel 682: my $status;
683: my $accessmsg;
684:
1.343 albertel 685: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 686: my ($result,$form_tag_start);
1.354 albertel 687: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
688: || $target eq 'edit') {
1.350 albertel 689: ($result,$form_tag_start) =
690: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
691: $name);
692: }
693:
1.284 albertel 694: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 695:
696: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
697: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
698: $target eq 'tex') {
699: #handle exam checkout
700: if ($Apache::lonhomework::type eq 'exam') {
701: my $token=
702: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 703: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 704: $token=&Apache::lonxml::maketoken();
705: $Apache::lonhomework::history{"resource.0.outtoken"}=
706: $token;
707: }
1.343 albertel 708: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 709: }
1.284 albertel 710: if ($env{'form.markaccess'}) {
1.252 albertel 711: &Apache::lonnet::set_first_access('map');
712: }
1.159 albertel 713: #handle rand seed in construction space
714: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 715: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 716: if ($env{'request.state'} ne "construct" &&
717: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 718: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
719: $rndseed.'" />'.
720: '<input type="submit" name="resetdata"
1.334 albertel 721: value="'.&mt('New Problem Variation').'" />';
722: if (exists($env{'form.username'})) {
723: $form_tag_start.=
1.164 albertel 724: '<input type="hidden" name="username"
1.284 albertel 725: value="'.$env{'form.username'}.'" />';
1.334 albertel 726: }
1.333 albertel 727: if ($env{'request.role.adv'}) {
1.267 albertel 728: $form_tag_start.=
1.300 albertel 729: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 730: if (defined($env{'form.showallfoils'})) {
1.267 albertel 731: $form_tag_start.='checked="on"';
732: }
1.300 albertel 733: $form_tag_start.= ' />'.&mt(' Show All Foils').
734: '</label>';
1.267 albertel 735: }
736: $form_tag_start.='<hr />';
1.162 albertel 737: }
1.324 albertel 738:
739: ($status,$accessmsg,my $slot_name,my $slot) =
740: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 741: push (@Apache::inputtags::status,$status);
1.324 albertel 742:
1.159 albertel 743: my $expression='$external::datestatus="'.$status.'";';
744: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
745: &Apache::run::run($expression,$safeeval);
746: &Apache::lonxml::debug("Got $status");
1.324 albertel 747:
1.159 albertel 748: if (( $status eq 'CLOSED' ) ||
749: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 750: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 751: ( $status eq 'BANNED') ||
1.216 albertel 752: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 753: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 754: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 755: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
756: $style);
1.159 albertel 757: if ( $target eq "web" ) {
1.343 albertel 758: my $msg;
1.159 albertel 759: if ($status eq 'UNAVAILABLE') {
1.245 albertel 760: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 761: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 762: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 763: }
1.216 albertel 764: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 765: $msg.='The problem '.$accessmsg;
766: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 767: $msg.=&checkout_msg();
1.252 albertel 768: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 769: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 770: } elsif ($status eq 'NOT_IN_A_SLOT') {
771: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 772: }
773: $result.=$msg.'<br />';
774: } elsif ($target eq 'tex') {
1.332 albertel 775: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
776: : '\begin{minipage}{\textwidth}';
777: $result.='\begin{document}\noindent \vskip 1 mm '.
778: $startminipage.'\vskip 0 mm';
1.159 albertel 779: if ($status eq 'UNAVAILABLE') {
1.211 albertel 780: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 781: } else {
1.211 albertel 782: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 783: }
784: }
1.324 albertel 785: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 786: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
787: $style);
1.324 albertel 788: if ($target eq 'web') {
1.375 albertel 789: $result .=
790: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 791: } elsif ($target eq 'grade') {
792: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
793: 'problem');
794: }
1.159 albertel 795: } elsif ($target eq 'web') {
1.360 albertel 796: if ($status eq 'CAN_ANSWER'
797: && $slot_name ne ''
798: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
799: # unproctored slot access, self checkin
800: &Apache::bridgetask::check_in('problem',undef,undef,
801: $slot_name);
802: }
1.368 albertel 803: $result.="\n $form_tag_start \t".
1.227 albertel 804: '<input type="hidden" name="submitted" value="yes" />';
805: # create a page header and exit
1.284 albertel 806: if ($env{'request.state'} eq "construct") {
807: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 808: }
809: # if we are viewing someone else preserve that info
1.284 albertel 810: if (defined $env{'form.grade_symb'}) {
1.227 albertel 811: foreach my $field ('symb','courseid','domain','username') {
812: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 813: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 814: }
815: }
816: } elsif ($target eq 'tex') {
1.319 foxr 817: $result .= 'INSERTTEXFRONTMATTERHERE';
818:
1.99 sakharuk 819: }
1.159 albertel 820: } elsif ($target eq 'edit') {
1.343 albertel 821: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 822: $Apache::lonxml::warnings_error_header=
823: &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 824: my $temp=&Apache::edit::insertlist($target,$token);
825: $result.=$temp;
826: } elsif ($target eq 'modified') {
827: $result=$token->[4];
828: } else {
829: # page_start returned a starting result, delete it if we don't need it
830: $result = '';
1.99 sakharuk 831: }
1.159 albertel 832: return $result;
1.9 albertel 833: }
834:
835: sub end_problem {
1.159 albertel 836: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 837: my $result;
1.310 foxr 838:
1.321 albertel 839: if (!$Apache::lonxml::metamode) {
840: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 841: $Apache::lonxml::post_evaluate=0;
1.321 albertel 842: }
1.319 foxr 843:
844: if ($target eq 'tex') {
1.321 albertel 845: # Figure out the front matter and replace the
846: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
847: # this in end_problem because whether or not we display due
848: # dates depends on whether due dates have already been
849: # displayed in the problem parts.
850:
1.319 foxr 851: my $frontmatter = '';
852: my $startminipage = '';
853: if (not $env{'form.problem_split'}=~/yes/) {
854: $startminipage = '\begin{minipage}{\textwidth}';
855: }
856: my $id = $Apache::inputtags::part;
857: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
858: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
859: my @packages = split /,/,$packages;
860: my $allow_print_points = 0;
861: foreach my $partial_key (@packages) {
862: if ($partial_key=~m/^part_0$/) {
863: $allow_print_points=1;
864: }
865: }
866: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
867: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
868: if (lc($env{'course.'.$env{'request.course.id'}.
869: '.disableexampointprint'}) eq 'yes') {
870: $allow_print_points=0;
871: }
872: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
873: 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 ';
874: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
875: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
876:
877: # Figure out what the due date is and if we need to print
878: # it in the problem header. We have been logging the
879: # last due date written to file.
880:
881: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
882: my $duedate = POSIX::strftime("%c",localtime($duetime));
883: my $temp_file;
884: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
885:
886: # Figure out what the last printed due date is or set it
887: # to the epoch if no duedates have been printed.
888:
889: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
890: if (-e $filename) {
891: $temp_file = Apache::File->new($filename);
892: my @due_file = <$temp_file>;
893: $due_file_content = $due_file[$#due_file];
894: chomp $due_file_content;
895: }
896:
897: # We display the due date iff it is not the same as the last
898: # duedate in problem header ($due_file_content), and
899: # none of our parts displayed a duedate.
900: #
901: my $parts_with_displayduedate;
902: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
903: $parts_with_displayduedate =
904: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
905: } else {
906: $parts_with_displayduedate = 0;
907: }
908: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
909: $temp_file = Apache::File->new('>'.$filename);
910: print $temp_file "$duetime\n";
911: if (not $env{'request.symb'} =~ m/\.page_/) {
912: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
913: $frontmatter .= $begin_doc.
914: '\textit{Due date: '.$duedate.'} '.$toc_line;
915: } else {
916: $frontmatter.= $begin_doc.$toc_line;
917: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
918: }
919: } else {
1.381 albertel 920: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\'.$startminipage;
1.319 foxr 921: }
922: } else {
923: if (not $env{'request.symb'} =~ m/\.page_/) {
924: $frontmatter .= $begin_doc.$toc_line;
925: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
926: } else {
1.381 albertel 927: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 928: }
929: }
930: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
931: }
932:
1.159 albertel 933: my $status=$Apache::inputtags::status['-1'];
934: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
935: $target eq 'tex') {
1.249 albertel 936: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 937: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 938: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
939: &Apache::inputtags::grade;
1.324 albertel 940: } elsif ($status eq 'NEEDS_CHECKIN') {
941: # no need to grade, and don't want to hide data
1.249 albertel 942: } else {
943: # move any submission data to .hidden
944: &Apache::inputtags::hidealldata($Apache::inputtags::part);
945: }
1.159 albertel 946: } elsif ( ($target eq 'web' || $target eq 'tex') &&
947: $Apache::inputtags::part eq '0' &&
1.252 albertel 948: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 949: # if part is zero, no <part>s existed, so we need show the current
950: # grading status
951: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
952: $result.= $gradestatus;
953: }
954: if (
1.284 albertel 955: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 956: ($target eq 'answer') || ($target eq 'tex')
957: ) {
1.227 albertel 958: if ($target ne 'tex' &&
1.284 albertel 959: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 960: $result.="</form>";
1.348 albertel 961: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 962: }
963: if ($target eq 'web') {
1.346 albertel 964: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 965: } elsif ($target eq 'tex') {
1.178 sakharuk 966: my $endminipage = '';
1.284 albertel 967: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 968: $endminipage = '\end{minipage}';
969: }
1.284 albertel 970: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 971: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 972: } else {
1.262 sakharuk 973: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 974: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 975: $result .= $endminipage.'\end{document} ';
976: } else {
1.382 albertel 977: $result .= $endminipage;
1.262 sakharuk 978: }
1.159 albertel 979: }
980: }
981: }
982: if ($target eq 'grade') {
983: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
984: &finalize_storage();
985: }
1.284 albertel 986: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
987: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 988: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 989: # normally we get it from above, but in CSTR
1.172 albertel 990: # we always show answer mode too.
1.159 albertel 991: }
992: } elsif ($target eq 'meta') {
993: if ($Apache::inputtags::part eq '0') {
1.179 albertel 994: @Apache::inputtags::response=();
1.159 albertel 995: $result=&Apache::response::mandatory_part_meta;
996: }
1.215 albertel 997: $result.=&Apache::response::meta_part_order();
1.258 albertel 998: $result.=&Apache::response::meta_response_order();
1.159 albertel 999: } elsif ($target eq 'edit') {
1000: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1001: $result .= &problem_edit_footer();
1.320 albertel 1002: } elsif ($target eq 'modified') {
1003: $result .= $token->[2];
1.159 albertel 1004: }
1.155 albertel 1005:
1.284 albertel 1006: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1007: &Apache::inputtags::check_for_duplicate_ids();
1008: }
1.204 albertel 1009:
1010: &reset_problem_globals('problem');
1.159 albertel 1011:
1012: return $result;
1.48 albertel 1013: }
1014:
1.108 albertel 1015:
1.48 albertel 1016: sub start_library {
1.159 albertel 1017: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1018: my ($result,$form_tag_start);
1.371 albertel 1019: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1020: &init_problem_globals('library');
1021: $Apache::lonhomework::type='problem';
1022: }
1.159 albertel 1023: if ($target eq 'edit') {
1.343 albertel 1024: ($result,$form_tag_start)=
1025: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1026: 'Edit');
1027: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1028: my $temp=&Apache::edit::insertlist($target,$token);
1029: $result.=$temp;
1030: } elsif ($target eq 'modified') {
1031: $result=$token->[4];
1.340 albertel 1032: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1033: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1034: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1035: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1036: ($result,$form_tag_start)=
1037: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1038: $name);
1.159 albertel 1039: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1040: $result.=" \n $form_tag_start".
1.159 albertel 1041: '<input type="hidden" name="submitted" value="yes" />';
1042: $result.=&problem_web_to_edit_header($rndseed);
1043: }
1044: return $result;
1.48 albertel 1045: }
1046:
1047: sub end_library {
1.159 albertel 1048: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1049: my $result='';
1050: if ($target eq 'edit') {
1051: $result=&problem_edit_footer();
1.371 albertel 1052: } elsif ($target eq 'web'
1053: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1054: && $env{'request.state'} eq "construct") {
1.349 albertel 1055: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1056: }
1.371 albertel 1057: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1058: &reset_problem_globals('library');
1059: }
1.159 albertel 1060: return $result;
1.197 www 1061: }
1062:
1063: sub start_definetag {
1.326 albertel 1064: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1065:
1066: my $result;
1067:
1068: my $name = $token->[2]->{'name'};
1.326 albertel 1069: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 1070: if ($name=~/^\//) {
1071: $result=
1072: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
1073: } else {
1074: $result=
1075: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
1076: }
1077: $skip=~s/\</\<\;/gs;
1078: $skip=~s/\>/\>\;/gs;
1079: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1080: return $result;
1081: }
1082:
1083: sub end_definetag {
1084: return '';
1.1 albertel 1085: }
1086:
1087: sub start_block {
1.201 albertel 1088: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1089:
1090: my $result;
1.1 albertel 1091:
1.339 albertel 1092: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1093: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1094: my $code = $token->[2]->{'condition'};
1.385 albertel 1095: if (defined($code) && $code ne '') {
1.137 albertel 1096: if (!$Apache::lonxml::default_homework_loaded) {
1097: &Apache::lonxml::default_homework_load($safeeval);
1098: }
1.131 albertel 1099: $result = &Apache::run::run($code,$safeeval);
1100: &Apache::lonxml::debug("block :$code: returned :$result:");
1101: } else {
1102: $result='1';
1103: }
1104: if ( ! $result ) {
1.201 albertel 1105: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1106: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1107: }
1108: $result='';
1109: } elsif ($target eq 'edit') {
1110: $result .=&Apache::edit::tag_start($target,$token);
1111: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1112: $token,40);
1113: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1114: } elsif ($target eq 'modified') {
1115: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1116: $safeeval,'condition');
1117: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1118: }
1.131 albertel 1119: return $result;
1.1 albertel 1120: }
1121:
1122: sub end_block {
1.167 www 1123: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1124: my $result;
1125: if ($target eq "edit") {
1126: $result.= &Apache::edit::tag_end($target,$token,'');
1127: }
1128: return $result;
1129: }
1130:
1131: sub start_languageblock {
1.201 albertel 1132: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1133:
1134: my $result;
1135:
1.339 albertel 1136: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1137: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1138: my $include = $token->[2]->{'include'};
1139: my $exclude = $token->[2]->{'exclude'};
1140: my %languages=&Apache::loncommon::display_languages();
1141: $result='1';
1142: if ($include) {
1143: $result='';
1144: foreach (split(/\,/,$include)) {
1145: if ($languages{$_}) { $result='1'; }
1146: }
1147: }
1148: if ($exclude) {
1149: foreach (split(/\,/,$exclude)) {
1150: if ($languages{$_}) { $result='0'; }
1151: }
1152: }
1153: if ( ! $result ) {
1154: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1155: $style);
1156: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1157: }
1158: $result='';
1.167 www 1159: } elsif ($target eq 'edit') {
1160: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1161: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1162: $token,40);
1.211 albertel 1163: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1164: $token,40);
1165: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1166: } elsif ($target eq 'modified') {
1167: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1168: $safeeval,'include',
1169: 'exclude');
1.167 www 1170: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1171: }
1172: return $result;
1173: }
1174:
1175: sub end_languageblock {
1.170 www 1176: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1177: my $result;
1.201 albertel 1178: if ($target eq "edit") {
1.170 www 1179: $result.= &Apache::edit::tag_end($target,$token,'');
1180: }
1181: return $result;
1182: }
1183:
1184: sub start_instructorcomment {
1.201 albertel 1185: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1186:
1187: my $result;
1188:
1.339 albertel 1189: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1190: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1191: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1192: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1193: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1194: $parser,$style);
1.170 www 1195: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1196: }
1197: $result='';
1198: } elsif ($target eq 'edit') {
1199: $result .=&Apache::edit::tag_start($target,$token);
1200: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1201: }
1202: return $result;
1203: }
1204:
1205: sub end_instructorcomment {
1.159 albertel 1206: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1207: my $result;
1208: if ($target eq "edit") {
1209: $result.= &Apache::edit::tag_end($target,$token,'');
1210: }
1211: return $result;
1.4 tsai 1212: }
1213:
1214: sub start_while {
1.326 albertel 1215: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1216:
1.160 albertel 1217: my $result;
1.339 albertel 1218: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1219: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1220: my $code = $token->[2]->{'condition'};
1.4 tsai 1221:
1.160 albertel 1222: push( @Apache::structuretags::whileconds, $code);
1223: if (!$Apache::lonxml::default_homework_loaded) {
1224: &Apache::lonxml::default_homework_load($safeeval);
1225: }
1226: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1227: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1228: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1229: push( @Apache::structuretags::whileline, $token->[5]);
1230: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1231: if ( $result ) {
1232: &Apache::lonxml::newparser($parser,\$bodytext);
1233: }
1234: } elsif ($target eq 'edit') {
1235: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1236: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1237: $token,40);
1238: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1239: } elsif ($target eq 'modified') {
1240: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1241: $safeeval,'condition');
1242: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1243: }
1.160 albertel 1244: return $result;
1.4 tsai 1245: }
1246:
1247: sub end_while {
1.159 albertel 1248: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1249: my $result;
1250:
1.339 albertel 1251: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1252: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1253: my $code = pop(@Apache::structuretags::whileconds);
1254: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1255: my $line = pop(@Apache::structuretags::whileline);
1256: my $return = &Apache::run::run($code,$safeeval);
1257: my $starttime=time;
1258: my $error=0;
1259: while ($return) {
1260: if (time-$starttime >
1261: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1262: $return = 0; $error=1; next;
1.161 albertel 1263: }
1264: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1265: if ($target eq 'grade' || $target eq 'answer' ||
1266: $target eq 'analyze') {
1267: # grade/answer/analyze should produce no output but if we
1268: # are redirecting, the redirecter should know what to do
1269: # with the output
1270: if (!$Apache::lonxml::redirection) { undef($result); }
1271: }
1.161 albertel 1272: $return = &Apache::run::run($code,$safeeval);
1273: }
1274: if ($error) {
1.270 albertel 1275: &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 1276: }
1277: } elsif ($target eq "edit") {
1278: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1279: }
1.160 albertel 1280: return $result;
1.1 albertel 1281: }
1.6 tsai 1282:
1.160 albertel 1283: # <randomlist show="1">
1.6 tsai 1284: # <tag1>..</tag1>
1285: # <tag2>..</tag2>
1286: # <tag3>..</tag3>
1.160 albertel 1287: # ...
1.6 tsai 1288: # </randomlist>
1289: sub start_randomlist {
1.326 albertel 1290: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1291: my $result;
1.339 albertel 1292: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1293: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1294: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1295: my $b_parser= HTML::LCParser->new(\$body);
1296: $b_parser->xml_mode(1);
1297: $b_parser->marked_sections(1);
1.159 albertel 1298: my $b_tok;
1299: my @randomlist;
1300: my $list_item;
1301: while($b_tok = $b_parser->get_token() ) {
1302: if($b_tok->[0] eq 'S') { # start tag
1303: # get content of the tag until matching end tag
1304: # get all text upto the matching tag
1305: # and push the content into @randomlist
1306: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1307: $b_parser);
1308: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1309: push(@randomlist,$list_item);
1310: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1311: # $list_item</b>";
1312: }
1313: if($b_tok->[0] eq 'T') { # text
1314: # what to do with text in between tags?
1315: # print "<b>TEXT $b_tok->[1]</b><br />";
1316: }
1317: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1318: # print "<b>END-TAG $b_tok->[1]</b><br />";
1319: # }
1320: }
1.303 albertel 1321: if (@randomlist) {
1322: my @idx_arr = (0 .. $#randomlist);
1323: &Apache::structuretags::shuffle(\@idx_arr);
1324: my $bodytext = '';
1325: my $show=$#randomlist;
1326: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1327: $showarg--;
1328: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1329: for(0 .. $show) {
1330: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1331: }
1332: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1333: }
1334: } elsif ($target eq 'edit' ) {
1335: $result .=&Apache::edit::tag_start($target,$token);
1336: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1337: $token,5);
1338: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1339: } elsif ($target eq 'modified' ) {
1340: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1341: $safeeval,'show');
1342: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1343: }
1344: return $result;
1.7 tsai 1345: }
1346:
1347: sub shuffle {
1348: my $a=shift;
1349: my $i;
1.303 albertel 1350: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1351: &Apache::response::pushrandomnumber();
1.159 albertel 1352: for($i=@$a;--$i;) {
1353: my $j=int(&Math::Random::random_uniform() * ($i+1));
1354: next if $i == $j;
1355: @$a[$i,$j] = @$a[$j,$i];
1356: }
1.251 albertel 1357: &Apache::response::poprandomnumber();
1.7 tsai 1358: }
1.6 tsai 1359: }
1360:
1361: sub end_randomlist {
1.159 albertel 1362: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1363: my $result;
1364: if ($target eq 'edit' ) {
1365: $result=&Apache::edit::tag_end($target,$token,
1366: 'End Randomly Parsed Block');
1367: }
1368: return $result;
1.6 tsai 1369: }
1370:
1.283 albertel 1371: sub ordered_show_check {
1372: my $last_part=$Apache::inputtags::partlist[-2];
1373: my $in_order=
1374: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1375: my $in_order_show=1;
1376: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1377: $in_order_show=&Apache::response::check_status($last_part);
1378: }
1379: return $in_order_show;
1380: }
1381:
1.11 albertel 1382: sub start_part {
1.326 albertel 1383: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1384: if (!$Apache::lonxml::metamode) {
1385: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1386: # duedates.
1387: }
1.159 albertel 1388: my $result='';
1.386 albertel 1389: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1390: $Apache::inputtags::part=$id;
1.177 albertel 1391: push(@Apache::inputtags::partlist,$id);
1392: @Apache::inputtags::response=();
1.159 albertel 1393: @Apache::inputtags::previous=();
1394: @Apache::inputtags::previous_version=();
1.241 albertel 1395: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1396: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1397: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1398: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1399: my $in_order_show=&ordered_show_check();
1.214 albertel 1400: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1401: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1402: &Apache::run::run($expression,$safeeval);
1.159 albertel 1403:
1404: if ($target eq 'meta') {
1.224 www 1405: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1406: return &Apache::response::mandatory_part_meta.
1407: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1408: } elsif ($target eq 'web' || $target eq 'grade' ||
1409: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1410: if ($hidden || !$in_order_show) {
1.326 albertel 1411: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1412: } else {
1413: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1414: push (@Apache::inputtags::status,$status);
1415: my $expression='$external::datestatus="'.$status.'";';
1416: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1417: &Apache::run::run($expression,$safeeval);
1.284 albertel 1418: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1419: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1420: }
1.216 albertel 1421: if (( $status eq 'CLOSED' ) ||
1422: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1423: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1424: ( $status eq 'BANNED') ||
1425: ( $status eq 'UNAVAILABLE') ||
1426: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1427: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1428: $style);
1.159 albertel 1429: if ( $target eq "web" ) {
1.211 albertel 1430: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1431: } elsif ( $target eq 'tex' ) {
1.284 albertel 1432: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1433: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1434: } else {
1.211 albertel 1435: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1436: }
1.159 albertel 1437: }
1438: } else {
1439: if ($target eq 'tex') {
1.284 albertel 1440: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1441: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1442: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1443: } else {
1444: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1445: }
1.195 sakharuk 1446: }
1.159 albertel 1447: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1448: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1449: my @allkeys = split /,/,$allkeys;
1450: my $allow_print_points = 0;
1451: foreach my $partial_key (@allkeys) {
1.230 albertel 1452: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1453: if ($1 ne '0') {$allow_print_points=1;}
1454: }
1455: }
1.275 albertel 1456: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1457: if (defined($maxtries) && $maxtries < 0) {
1458: $allow_print_points=0;
1459: }
1.302 albertel 1460: if (lc($env{'course.'.$env{'request.course.id'}.
1461: '.disableexampointprint'}) eq 'yes') {
1462: $allow_print_points=0;
1463: }
1.222 sakharuk 1464: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1465: } elsif ($target eq 'web') {
1.356 www 1466: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1467: }
1468: }
1469: }
1470: } elsif ($target eq 'edit') {
1471: $result.=&Apache::edit::tag_start($target,$token);
1472: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1473: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1474: ' '.
1475: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1476: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1477: } elsif ($target eq 'modified') {
1478: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1479: $safeeval,'id','display');
1.159 albertel 1480: if ($constructtag) {
1.225 albertel 1481: #limiting ids to only letters numbers, and space
1.224 www 1482: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1483: $result = &Apache::edit::rebuild_tag($token);
1484: }
1485: }
1486: return $result;
1.11 albertel 1487: }
1488:
1489: sub end_part {
1.159 albertel 1490: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1491: &Apache::lonxml::debug("in end_part $target ");
1492: my $status=$Apache::inputtags::status['-1'];
1493: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1494: my $in_order_show=&ordered_show_check();
1.321 albertel 1495: my $result;
1496: if (!$Apache::lonxml::metamode) {
1497: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1498: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1499: }
1.312 albertel 1500: if ($target eq 'grade') {
1.249 albertel 1501: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1502: !$hidden && $in_order_show) {
1.311 foxr 1503: $result.=&Apache::inputtags::grade;
1.249 albertel 1504: } else {
1505: # move any submission data to .hidden
1506: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1507: }
1.283 albertel 1508: } elsif (($target eq 'web' || $target eq 'tex') &&
1509: !$hidden && $in_order_show) {
1.159 albertel 1510: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1511: $target);
1.212 albertel 1512: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1513: $gradestatus='';
1514: }
1.311 foxr 1515: $result.=$gradestatus;
1.265 sakharuk 1516: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1517: } elsif ($target eq 'edit') {
1.311 foxr 1518: $result.=&Apache::edit::end_table();
1.322 albertel 1519: } elsif ($target eq 'modified') {
1520: $result .= $token->[2];
1.159 albertel 1521: }
1522: pop @Apache::inputtags::status;
1523: $Apache::inputtags::part='';
1.295 albertel 1524: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1525: return $result;
1.11 albertel 1526: }
1.1 albertel 1527:
1.25 albertel 1528: sub start_preduedate {
1.326 albertel 1529: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1530: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1531: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1532: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1533: if (!$Apache::lonhomework::scantronmode &&
1534: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1535: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1536: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1537: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1538: }
1.24 albertel 1539: }
1.159 albertel 1540: return '';
1.24 albertel 1541: }
1542:
1.25 albertel 1543: sub end_preduedate {
1.159 albertel 1544: return '';
1.24 albertel 1545: }
1546:
1.369 foxr 1547: # In all the modes where <postanswerdate> text is
1548: # displayable, all we do is eat up the text between the start/stop
1549: # tags if the conditions are not right to display it.
1.25 albertel 1550: sub start_postanswerdate {
1.326 albertel 1551: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1552: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1553: &Apache::lonnet::allowed('pav',
1554: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1555: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1556: $target eq 'tex' ) {
1.300 albertel 1557: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1558: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1559: (($target eq 'tex') && !$pav)) {
1.326 albertel 1560: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1561: }
1562: }
1563: return '';
1.24 albertel 1564: }
1565:
1.25 albertel 1566: sub end_postanswerdate {
1.159 albertel 1567: return '';
1.24 albertel 1568: }
1569:
1.25 albertel 1570: sub start_notsolved {
1.326 albertel 1571: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1572: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1573: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1574: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1575: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1576: if ($gradestatus =~ /^correct/ &&
1577: &Apache::response::show_answer()) {
1.159 albertel 1578: &Apache::lonxml::debug("skipping");
1.326 albertel 1579: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1580: }
1.24 albertel 1581: }
1.159 albertel 1582: return '';
1.24 albertel 1583: }
1584:
1.25 albertel 1585: sub end_notsolved {
1.159 albertel 1586: return '';
1.24 albertel 1587: }
1588:
1589: sub start_solved {
1.326 albertel 1590: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1591: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1592: $target eq 'tex') {
1593: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1594: if ($gradestatus !~ /^correct/ ||
1595: !&Apache::response::show_answer()) {
1.326 albertel 1596: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1597: }
1.24 albertel 1598: }
1.159 albertel 1599: return '';
1.24 albertel 1600: }
1601:
1602: sub end_solved {
1.248 albertel 1603: return '';
1604: }
1605:
1606: sub start_problemtype {
1.326 albertel 1607: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1608: my $result;
1.339 albertel 1609: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1610: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1611: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1612: if (!defined($mode)) { $mode='show'; }
1613: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1614: my $found=0;
1615: foreach my $type (split(',',$for)) {
1616: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1617: }
1618: if ($mode eq 'show' && !$found) {
1.326 albertel 1619: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1620: }
1621: if ($mode eq 'hide' && $found) {
1.326 albertel 1622: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1623: }
1624: } elsif ($target eq 'edit') {
1625: $result .=&Apache::edit::tag_start($target,$token);
1626: $result.=&Apache::edit::select_arg('Mode:','mode',
1627: [['show','Show'],
1628: ['hide','Hide']]
1629: ,$token);
1630: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1631: [ ['exam','Exam/Quiz Problem'],
1632: ['survey','Survey'],
1633: ['problem','Homework Problem'] ]
1634: ,$token);
1635: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1636: } elsif ($target eq 'modified') {
1637: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1638: $safeeval,'mode','for');
1639: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1640: }
1641: return $result;
1642: }
1643:
1644: sub end_problemtype {
1.159 albertel 1645: return '';
1.24 albertel 1646: }
1.34 albertel 1647:
1648: sub start_startouttext {
1.159 albertel 1649: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1650: my @result=(''.'');
1651: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1652: return (@result);
1.34 albertel 1653: }
1.159 albertel 1654:
1.34 albertel 1655: sub end_startouttext {
1.326 albertel 1656: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1657: my $result='';
1658: my $text='';
1659:
1660: if ($target eq 'edit') {
1.326 albertel 1661: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1662: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1663: <td>".&mt('Delete:').
1.159 albertel 1664: &Apache::edit::deletelist($target,$token)
1665: ."</td>
1.42 albertel 1666: <td>".
1.159 albertel 1667: &Apache::edit::insertlist($target,$token).
1.362 albertel 1668: '</td><td align="right" valign="top">' .
1669: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1670: &Apache::edit::end_row().
1.362 albertel 1671: &Apache::edit::start_spanning_row()."\n".
1.255 www 1672: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1673: }
1674: if ($target eq 'modified') {
1.219 albertel 1675: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1676: }
1677: if ($target eq 'tex') {
1678: $result .= '\noindent ';
1679: }
1680: return $result;
1.34 albertel 1681: }
1.159 albertel 1682:
1.34 albertel 1683: sub start_endouttext {
1.159 albertel 1684: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1685: my $result='';
1686: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1687: if ($target eq "modified") {
1688: $result='<endouttext />'.
1.377 albertel 1689: &Apache::edit::handle_insertafter('startouttext');
1690: }
1.159 albertel 1691: return $result;
1.34 albertel 1692: }
1.159 albertel 1693:
1.34 albertel 1694: sub end_endouttext {
1.159 albertel 1695: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1696: my @result=('','');
1697: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1698: return (@result);
1.34 albertel 1699: }
1.159 albertel 1700:
1.45 albertel 1701: sub delete_startouttext {
1.326 albertel 1702: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1703: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1704: my $text=$$parser['-1']->get_text("/endouttext");
1705: my $ntoken=$$parser['-1']->get_token();
1706: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1707: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1708: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1709: # they did the last time round
1710: &Apache::lonxml::increasedepth($ntoken);
1711: &Apache::lonxml::decreasedepth($ntoken);
1712: return 1;
1.193 www 1713: }
1714:
1715: sub start_simpleeditbutton {
1716: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1717: my $result='';
1.284 albertel 1718: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1719: ($target eq 'web') &&
1.330 albertel 1720: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1721: my $url=$env{'request.noversionuri'};
1.193 www 1722: $url=~s/\?.*$//;
1.367 albertel 1723: my ($symb) = &Apache::lonnet::whichuser();
1.194 www 1724: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.356 www 1725: '<a href="'.$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 1726: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1727: }
1728: return $result;
1729: }
1730:
1731: sub end_simpleeditbutton {
1732: return '';
1.45 albertel 1733: }
1.34 albertel 1734:
1.1 albertel 1735: 1;
1736: __END__
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