Annotation of loncom/homework/structuretags.pm, revision 1.390
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.390 ! albertel 4: # $Id: structuretags.pm,v 1.389 2007/08/14 01:45:20 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') {
647: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 648: if (($env{'request.state'} eq 'construct') &&
649: defined($env{'form.problemtype'})) {
650: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 651: }
1.332 albertel 652: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 653: }
1.164 albertel 654: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 655: my $uri=$env{'request.uri'};
1.159 albertel 656: if ($uri=~/\.(\w+)$/) {
657: $Apache::lonhomework::type=$1;
658: &Apache::lonxml::debug("Using type of $1");
659: } else {
660: $Apache::lonhomework::type='problem';
661: &Apache::lonxml::debug("Using default type, problem, :$uri:");
662: }
1.87 albertel 663: }
1.301 albertel 664: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 665:
1.363 albertel 666: &initialize_storage();
1.389 albertel 667: if ($target ne 'analyze'
668: && $env{'request.state'} eq 'construct') {
669: &set_problem_state('0');
670: }
671:
1.366 albertel 672: if ($target eq 'web') {
673: &Apache::lonxml::debug(" grading history ");
674: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
675: }
1.363 albertel 676:
1.159 albertel 677: #added vars to the scripting enviroment
1.213 albertel 678: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 679: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 680: &Apache::run::run($expression,$safeeval);
1.159 albertel 681: my $status;
682: my $accessmsg;
683:
1.343 albertel 684: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 685: my ($result,$form_tag_start);
1.354 albertel 686: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
687: || $target eq 'edit') {
1.350 albertel 688: ($result,$form_tag_start) =
689: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
690: $name);
691: }
692:
1.284 albertel 693: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 694:
695: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
696: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
697: $target eq 'tex') {
698: #handle exam checkout
699: if ($Apache::lonhomework::type eq 'exam') {
700: my $token=
701: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 702: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 703: $token=&Apache::lonxml::maketoken();
704: $Apache::lonhomework::history{"resource.0.outtoken"}=
705: $token;
706: }
1.343 albertel 707: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 708: }
1.284 albertel 709: if ($env{'form.markaccess'}) {
1.252 albertel 710: &Apache::lonnet::set_first_access('map');
711: }
1.159 albertel 712: #handle rand seed in construction space
713: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 714: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 715: if ($env{'request.state'} ne "construct" &&
716: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 717: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
718: $rndseed.'" />'.
719: '<input type="submit" name="resetdata"
1.334 albertel 720: value="'.&mt('New Problem Variation').'" />';
721: if (exists($env{'form.username'})) {
722: $form_tag_start.=
1.164 albertel 723: '<input type="hidden" name="username"
1.284 albertel 724: value="'.$env{'form.username'}.'" />';
1.334 albertel 725: }
1.333 albertel 726: if ($env{'request.role.adv'}) {
1.267 albertel 727: $form_tag_start.=
1.300 albertel 728: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 729: if (defined($env{'form.showallfoils'})) {
1.267 albertel 730: $form_tag_start.='checked="on"';
731: }
1.300 albertel 732: $form_tag_start.= ' />'.&mt(' Show All Foils').
733: '</label>';
1.267 albertel 734: }
735: $form_tag_start.='<hr />';
1.162 albertel 736: }
1.324 albertel 737:
738: ($status,$accessmsg,my $slot_name,my $slot) =
739: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 740: push (@Apache::inputtags::status,$status);
1.324 albertel 741:
1.159 albertel 742: my $expression='$external::datestatus="'.$status.'";';
743: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
744: &Apache::run::run($expression,$safeeval);
745: &Apache::lonxml::debug("Got $status");
1.324 albertel 746:
1.159 albertel 747: if (( $status eq 'CLOSED' ) ||
748: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 749: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 750: ( $status eq 'BANNED') ||
1.216 albertel 751: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 752: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 753: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 754: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
755: $style);
1.159 albertel 756: if ( $target eq "web" ) {
1.343 albertel 757: my $msg;
1.159 albertel 758: if ($status eq 'UNAVAILABLE') {
1.245 albertel 759: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 760: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 761: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 762: }
1.216 albertel 763: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 764: $msg.='The problem '.$accessmsg;
765: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 766: $msg.=&checkout_msg();
1.252 albertel 767: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 768: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 769: } elsif ($status eq 'NOT_IN_A_SLOT') {
770: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 771: }
772: $result.=$msg.'<br />';
773: } elsif ($target eq 'tex') {
1.332 albertel 774: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
775: : '\begin{minipage}{\textwidth}';
776: $result.='\begin{document}\noindent \vskip 1 mm '.
777: $startminipage.'\vskip 0 mm';
1.159 albertel 778: if ($status eq 'UNAVAILABLE') {
1.211 albertel 779: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 780: } else {
1.211 albertel 781: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 782: }
783: }
1.324 albertel 784: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 785: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
786: $style);
1.324 albertel 787: if ($target eq 'web') {
1.375 albertel 788: $result .=
789: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 790: } elsif ($target eq 'grade') {
791: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
792: 'problem');
793: }
1.159 albertel 794: } elsif ($target eq 'web') {
1.360 albertel 795: if ($status eq 'CAN_ANSWER'
796: && $slot_name ne ''
797: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
798: # unproctored slot access, self checkin
799: &Apache::bridgetask::check_in('problem',undef,undef,
800: $slot_name);
801: }
1.368 albertel 802: $result.="\n $form_tag_start \t".
1.227 albertel 803: '<input type="hidden" name="submitted" value="yes" />';
804: # create a page header and exit
1.284 albertel 805: if ($env{'request.state'} eq "construct") {
806: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 807: }
808: # if we are viewing someone else preserve that info
1.284 albertel 809: if (defined $env{'form.grade_symb'}) {
1.227 albertel 810: foreach my $field ('symb','courseid','domain','username') {
811: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 812: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 813: }
814: }
815: } elsif ($target eq 'tex') {
1.319 foxr 816: $result .= 'INSERTTEXFRONTMATTERHERE';
817:
1.99 sakharuk 818: }
1.159 albertel 819: } elsif ($target eq 'edit') {
1.343 albertel 820: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 821: $Apache::lonxml::warnings_error_header=
822: &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 823: my $temp=&Apache::edit::insertlist($target,$token);
824: $result.=$temp;
825: } elsif ($target eq 'modified') {
826: $result=$token->[4];
827: } else {
828: # page_start returned a starting result, delete it if we don't need it
829: $result = '';
1.99 sakharuk 830: }
1.159 albertel 831: return $result;
1.9 albertel 832: }
833:
834: sub end_problem {
1.159 albertel 835: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 836: my $result;
1.310 foxr 837:
1.321 albertel 838: if (!$Apache::lonxml::metamode) {
839: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 840: $Apache::lonxml::post_evaluate=0;
1.321 albertel 841: }
1.319 foxr 842:
843: if ($target eq 'tex') {
1.321 albertel 844: # Figure out the front matter and replace the
845: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
846: # this in end_problem because whether or not we display due
847: # dates depends on whether due dates have already been
848: # displayed in the problem parts.
849:
1.319 foxr 850: my $frontmatter = '';
851: my $startminipage = '';
852: if (not $env{'form.problem_split'}=~/yes/) {
853: $startminipage = '\begin{minipage}{\textwidth}';
854: }
855: my $id = $Apache::inputtags::part;
856: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
857: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
858: my @packages = split /,/,$packages;
859: my $allow_print_points = 0;
860: foreach my $partial_key (@packages) {
861: if ($partial_key=~m/^part_0$/) {
862: $allow_print_points=1;
863: }
864: }
865: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
866: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
867: if (lc($env{'course.'.$env{'request.course.id'}.
868: '.disableexampointprint'}) eq 'yes') {
869: $allow_print_points=0;
870: }
871: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
872: 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 ';
873: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
874: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
875:
876: # Figure out what the due date is and if we need to print
877: # it in the problem header. We have been logging the
878: # last due date written to file.
879:
880: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
881: my $duedate = POSIX::strftime("%c",localtime($duetime));
882: my $temp_file;
883: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
884:
885: # Figure out what the last printed due date is or set it
886: # to the epoch if no duedates have been printed.
887:
888: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
889: if (-e $filename) {
890: $temp_file = Apache::File->new($filename);
891: my @due_file = <$temp_file>;
892: $due_file_content = $due_file[$#due_file];
893: chomp $due_file_content;
894: }
895:
896: # We display the due date iff it is not the same as the last
897: # duedate in problem header ($due_file_content), and
898: # none of our parts displayed a duedate.
899: #
900: my $parts_with_displayduedate;
901: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
902: $parts_with_displayduedate =
903: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
904: } else {
905: $parts_with_displayduedate = 0;
906: }
907: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
908: $temp_file = Apache::File->new('>'.$filename);
909: print $temp_file "$duetime\n";
910: if (not $env{'request.symb'} =~ m/\.page_/) {
911: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
912: $frontmatter .= $begin_doc.
913: '\textit{Due date: '.$duedate.'} '.$toc_line;
914: } else {
915: $frontmatter.= $begin_doc.$toc_line;
916: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
917: }
918: } else {
1.381 albertel 919: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\'.$startminipage;
1.319 foxr 920: }
921: } else {
922: if (not $env{'request.symb'} =~ m/\.page_/) {
923: $frontmatter .= $begin_doc.$toc_line;
924: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
925: } else {
1.381 albertel 926: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 927: }
928: }
929: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
930: }
931:
1.159 albertel 932: my $status=$Apache::inputtags::status['-1'];
933: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
934: $target eq 'tex') {
1.249 albertel 935: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 936: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 937: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
938: &Apache::inputtags::grade;
1.324 albertel 939: } elsif ($status eq 'NEEDS_CHECKIN') {
940: # no need to grade, and don't want to hide data
1.249 albertel 941: } else {
942: # move any submission data to .hidden
943: &Apache::inputtags::hidealldata($Apache::inputtags::part);
944: }
1.159 albertel 945: } elsif ( ($target eq 'web' || $target eq 'tex') &&
946: $Apache::inputtags::part eq '0' &&
1.252 albertel 947: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 948: # if part is zero, no <part>s existed, so we need show the current
949: # grading status
950: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
951: $result.= $gradestatus;
952: }
953: if (
1.284 albertel 954: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 955: ($target eq 'answer') || ($target eq 'tex')
956: ) {
1.227 albertel 957: if ($target ne 'tex' &&
1.284 albertel 958: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 959: $result.="</form>";
1.348 albertel 960: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 961: }
962: if ($target eq 'web') {
1.346 albertel 963: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 964: } elsif ($target eq 'tex') {
1.178 sakharuk 965: my $endminipage = '';
1.284 albertel 966: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 967: $endminipage = '\end{minipage}';
968: }
1.284 albertel 969: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 970: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 971: } else {
1.262 sakharuk 972: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 973: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 974: $result .= $endminipage.'\end{document} ';
975: } else {
1.382 albertel 976: $result .= $endminipage;
1.262 sakharuk 977: }
1.159 albertel 978: }
979: }
980: }
981: if ($target eq 'grade') {
982: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
983: &finalize_storage();
984: }
1.284 albertel 985: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
986: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 987: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 988: # normally we get it from above, but in CSTR
1.172 albertel 989: # we always show answer mode too.
1.159 albertel 990: }
991: } elsif ($target eq 'meta') {
992: if ($Apache::inputtags::part eq '0') {
1.179 albertel 993: @Apache::inputtags::response=();
1.159 albertel 994: $result=&Apache::response::mandatory_part_meta;
995: }
1.215 albertel 996: $result.=&Apache::response::meta_part_order();
1.258 albertel 997: $result.=&Apache::response::meta_response_order();
1.159 albertel 998: } elsif ($target eq 'edit') {
999: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1000: $result .= &problem_edit_footer();
1.320 albertel 1001: } elsif ($target eq 'modified') {
1002: $result .= $token->[2];
1.159 albertel 1003: }
1.155 albertel 1004:
1.284 albertel 1005: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1006: &Apache::inputtags::check_for_duplicate_ids();
1007: }
1.204 albertel 1008:
1009: &reset_problem_globals('problem');
1.159 albertel 1010:
1011: return $result;
1.48 albertel 1012: }
1013:
1.108 albertel 1014:
1.48 albertel 1015: sub start_library {
1.159 albertel 1016: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1017: my ($result,$form_tag_start);
1.371 albertel 1018: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1019: &init_problem_globals('library');
1020: $Apache::lonhomework::type='problem';
1021: }
1.159 albertel 1022: if ($target eq 'edit') {
1.343 albertel 1023: ($result,$form_tag_start)=
1024: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1025: 'Edit');
1026: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1027: my $temp=&Apache::edit::insertlist($target,$token);
1028: $result.=$temp;
1029: } elsif ($target eq 'modified') {
1030: $result=$token->[4];
1.340 albertel 1031: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1032: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1033: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1034: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1035: ($result,$form_tag_start)=
1036: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1037: $name);
1.159 albertel 1038: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1039: $result.=" \n $form_tag_start".
1.159 albertel 1040: '<input type="hidden" name="submitted" value="yes" />';
1041: $result.=&problem_web_to_edit_header($rndseed);
1042: }
1043: return $result;
1.48 albertel 1044: }
1045:
1046: sub end_library {
1.159 albertel 1047: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1048: my $result='';
1049: if ($target eq 'edit') {
1050: $result=&problem_edit_footer();
1.371 albertel 1051: } elsif ($target eq 'web'
1052: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1053: && $env{'request.state'} eq "construct") {
1.349 albertel 1054: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1055: }
1.371 albertel 1056: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1057: &reset_problem_globals('library');
1058: }
1.159 albertel 1059: return $result;
1.197 www 1060: }
1061:
1062: sub start_definetag {
1.326 albertel 1063: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1064:
1065: my $result;
1066:
1067: my $name = $token->[2]->{'name'};
1.326 albertel 1068: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 1069: if ($name=~/^\//) {
1070: $result=
1071: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
1072: } else {
1073: $result=
1074: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
1075: }
1076: $skip=~s/\</\<\;/gs;
1077: $skip=~s/\>/\>\;/gs;
1078: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1079: return $result;
1080: }
1081:
1082: sub end_definetag {
1083: return '';
1.1 albertel 1084: }
1085:
1086: sub start_block {
1.201 albertel 1087: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1088:
1089: my $result;
1.1 albertel 1090:
1.339 albertel 1091: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1092: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1093: my $code = $token->[2]->{'condition'};
1.385 albertel 1094: if (defined($code) && $code ne '') {
1.137 albertel 1095: if (!$Apache::lonxml::default_homework_loaded) {
1096: &Apache::lonxml::default_homework_load($safeeval);
1097: }
1.131 albertel 1098: $result = &Apache::run::run($code,$safeeval);
1099: &Apache::lonxml::debug("block :$code: returned :$result:");
1100: } else {
1101: $result='1';
1102: }
1103: if ( ! $result ) {
1.201 albertel 1104: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1105: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1106: }
1107: $result='';
1108: } elsif ($target eq 'edit') {
1109: $result .=&Apache::edit::tag_start($target,$token);
1110: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1111: $token,40);
1112: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1113: } elsif ($target eq 'modified') {
1114: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1115: $safeeval,'condition');
1116: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1117: }
1.131 albertel 1118: return $result;
1.1 albertel 1119: }
1120:
1121: sub end_block {
1.167 www 1122: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1123: my $result;
1124: if ($target eq "edit") {
1125: $result.= &Apache::edit::tag_end($target,$token,'');
1126: }
1127: return $result;
1128: }
1129:
1130: sub start_languageblock {
1.201 albertel 1131: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1132:
1133: my $result;
1134:
1.339 albertel 1135: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1136: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1137: my $include = $token->[2]->{'include'};
1138: my $exclude = $token->[2]->{'exclude'};
1139: my %languages=&Apache::loncommon::display_languages();
1140: $result='1';
1141: if ($include) {
1142: $result='';
1143: foreach (split(/\,/,$include)) {
1144: if ($languages{$_}) { $result='1'; }
1145: }
1146: }
1147: if ($exclude) {
1148: foreach (split(/\,/,$exclude)) {
1149: if ($languages{$_}) { $result='0'; }
1150: }
1151: }
1152: if ( ! $result ) {
1153: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1154: $style);
1155: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1156: }
1157: $result='';
1.167 www 1158: } elsif ($target eq 'edit') {
1159: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1160: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1161: $token,40);
1.211 albertel 1162: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1163: $token,40);
1164: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1165: } elsif ($target eq 'modified') {
1166: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1167: $safeeval,'include',
1168: 'exclude');
1.167 www 1169: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1170: }
1171: return $result;
1172: }
1173:
1174: sub end_languageblock {
1.170 www 1175: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1176: my $result;
1.201 albertel 1177: if ($target eq "edit") {
1.170 www 1178: $result.= &Apache::edit::tag_end($target,$token,'');
1179: }
1180: return $result;
1181: }
1182:
1183: sub start_instructorcomment {
1.201 albertel 1184: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1185:
1186: my $result;
1187:
1.339 albertel 1188: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1189: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1190: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1191: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1192: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1193: $parser,$style);
1.170 www 1194: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1195: }
1196: $result='';
1197: } elsif ($target eq 'edit') {
1198: $result .=&Apache::edit::tag_start($target,$token);
1199: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1200: }
1201: return $result;
1202: }
1203:
1204: sub end_instructorcomment {
1.159 albertel 1205: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1206: my $result;
1207: if ($target eq "edit") {
1208: $result.= &Apache::edit::tag_end($target,$token,'');
1209: }
1210: return $result;
1.4 tsai 1211: }
1212:
1213: sub start_while {
1.326 albertel 1214: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1215:
1.160 albertel 1216: my $result;
1.339 albertel 1217: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1218: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1219: my $code = $token->[2]->{'condition'};
1.4 tsai 1220:
1.160 albertel 1221: push( @Apache::structuretags::whileconds, $code);
1222: if (!$Apache::lonxml::default_homework_loaded) {
1223: &Apache::lonxml::default_homework_load($safeeval);
1224: }
1225: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1226: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1227: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1228: push( @Apache::structuretags::whileline, $token->[5]);
1229: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1230: if ( $result ) {
1231: &Apache::lonxml::newparser($parser,\$bodytext);
1232: }
1233: } elsif ($target eq 'edit') {
1234: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1235: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1236: $token,40);
1237: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1238: } elsif ($target eq 'modified') {
1239: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1240: $safeeval,'condition');
1241: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1242: }
1.160 albertel 1243: return $result;
1.4 tsai 1244: }
1245:
1246: sub end_while {
1.159 albertel 1247: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1248: my $result;
1249:
1.339 albertel 1250: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1251: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1252: my $code = pop(@Apache::structuretags::whileconds);
1253: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1254: my $line = pop(@Apache::structuretags::whileline);
1255: my $return = &Apache::run::run($code,$safeeval);
1256: my $starttime=time;
1257: my $error=0;
1258: while ($return) {
1259: if (time-$starttime >
1260: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1261: $return = 0; $error=1; next;
1.161 albertel 1262: }
1263: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1264: if ($target eq 'grade' || $target eq 'answer' ||
1265: $target eq 'analyze') {
1266: # grade/answer/analyze should produce no output but if we
1267: # are redirecting, the redirecter should know what to do
1268: # with the output
1269: if (!$Apache::lonxml::redirection) { undef($result); }
1270: }
1.161 albertel 1271: $return = &Apache::run::run($code,$safeeval);
1272: }
1273: if ($error) {
1.270 albertel 1274: &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 1275: }
1276: } elsif ($target eq "edit") {
1277: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1278: }
1.160 albertel 1279: return $result;
1.1 albertel 1280: }
1.6 tsai 1281:
1.160 albertel 1282: # <randomlist show="1">
1.6 tsai 1283: # <tag1>..</tag1>
1284: # <tag2>..</tag2>
1285: # <tag3>..</tag3>
1.160 albertel 1286: # ...
1.6 tsai 1287: # </randomlist>
1288: sub start_randomlist {
1.326 albertel 1289: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1290: my $result;
1.339 albertel 1291: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1292: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1293: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1294: my $b_parser= HTML::LCParser->new(\$body);
1295: $b_parser->xml_mode(1);
1296: $b_parser->marked_sections(1);
1.159 albertel 1297: my $b_tok;
1298: my @randomlist;
1299: my $list_item;
1300: while($b_tok = $b_parser->get_token() ) {
1301: if($b_tok->[0] eq 'S') { # start tag
1302: # get content of the tag until matching end tag
1303: # get all text upto the matching tag
1304: # and push the content into @randomlist
1305: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1306: $b_parser);
1307: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1308: push(@randomlist,$list_item);
1309: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1310: # $list_item</b>";
1311: }
1312: if($b_tok->[0] eq 'T') { # text
1313: # what to do with text in between tags?
1314: # print "<b>TEXT $b_tok->[1]</b><br />";
1315: }
1316: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1317: # print "<b>END-TAG $b_tok->[1]</b><br />";
1318: # }
1319: }
1.303 albertel 1320: if (@randomlist) {
1321: my @idx_arr = (0 .. $#randomlist);
1322: &Apache::structuretags::shuffle(\@idx_arr);
1323: my $bodytext = '';
1324: my $show=$#randomlist;
1325: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1326: $showarg--;
1327: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1328: for(0 .. $show) {
1329: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1330: }
1331: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1332: }
1333: } elsif ($target eq 'edit' ) {
1334: $result .=&Apache::edit::tag_start($target,$token);
1335: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1336: $token,5);
1337: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1338: } elsif ($target eq 'modified' ) {
1339: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1340: $safeeval,'show');
1341: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1342: }
1343: return $result;
1.7 tsai 1344: }
1345:
1346: sub shuffle {
1347: my $a=shift;
1348: my $i;
1.303 albertel 1349: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1350: &Apache::response::pushrandomnumber();
1.159 albertel 1351: for($i=@$a;--$i;) {
1352: my $j=int(&Math::Random::random_uniform() * ($i+1));
1353: next if $i == $j;
1354: @$a[$i,$j] = @$a[$j,$i];
1355: }
1.251 albertel 1356: &Apache::response::poprandomnumber();
1.7 tsai 1357: }
1.6 tsai 1358: }
1359:
1360: sub end_randomlist {
1.159 albertel 1361: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1362: my $result;
1363: if ($target eq 'edit' ) {
1364: $result=&Apache::edit::tag_end($target,$token,
1365: 'End Randomly Parsed Block');
1366: }
1367: return $result;
1.6 tsai 1368: }
1369:
1.283 albertel 1370: sub ordered_show_check {
1371: my $last_part=$Apache::inputtags::partlist[-2];
1372: my $in_order=
1373: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1374: my $in_order_show=1;
1375: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1376: $in_order_show=&Apache::response::check_status($last_part);
1377: }
1378: return $in_order_show;
1379: }
1380:
1.11 albertel 1381: sub start_part {
1.326 albertel 1382: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1383: if (!$Apache::lonxml::metamode) {
1384: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1385: # duedates.
1386: }
1.159 albertel 1387: my $result='';
1.386 albertel 1388: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1389: $Apache::inputtags::part=$id;
1.177 albertel 1390: push(@Apache::inputtags::partlist,$id);
1391: @Apache::inputtags::response=();
1.159 albertel 1392: @Apache::inputtags::previous=();
1393: @Apache::inputtags::previous_version=();
1.241 albertel 1394: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1395: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1396: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1397: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1398: my $in_order_show=&ordered_show_check();
1.214 albertel 1399: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1400: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1401: &Apache::run::run($expression,$safeeval);
1.159 albertel 1402:
1403: if ($target eq 'meta') {
1.224 www 1404: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1405: return &Apache::response::mandatory_part_meta.
1406: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1407: } elsif ($target eq 'web' || $target eq 'grade' ||
1408: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1409: if ($hidden || !$in_order_show) {
1.326 albertel 1410: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1411: } else {
1412: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1413: push (@Apache::inputtags::status,$status);
1414: my $expression='$external::datestatus="'.$status.'";';
1415: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1416: &Apache::run::run($expression,$safeeval);
1.284 albertel 1417: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1418: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1419: }
1.216 albertel 1420: if (( $status eq 'CLOSED' ) ||
1421: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1422: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1423: ( $status eq 'BANNED') ||
1424: ( $status eq 'UNAVAILABLE') ||
1425: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1426: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1427: $style);
1.159 albertel 1428: if ( $target eq "web" ) {
1.211 albertel 1429: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1430: } elsif ( $target eq 'tex' ) {
1.284 albertel 1431: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1432: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1433: } else {
1.211 albertel 1434: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1435: }
1.159 albertel 1436: }
1437: } else {
1438: if ($target eq 'tex') {
1.284 albertel 1439: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1440: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1441: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1442: } else {
1443: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1444: }
1.195 sakharuk 1445: }
1.159 albertel 1446: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1447: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1448: my @allkeys = split /,/,$allkeys;
1449: my $allow_print_points = 0;
1450: foreach my $partial_key (@allkeys) {
1.230 albertel 1451: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1452: if ($1 ne '0') {$allow_print_points=1;}
1453: }
1454: }
1.275 albertel 1455: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1456: if (defined($maxtries) && $maxtries < 0) {
1457: $allow_print_points=0;
1458: }
1.302 albertel 1459: if (lc($env{'course.'.$env{'request.course.id'}.
1460: '.disableexampointprint'}) eq 'yes') {
1461: $allow_print_points=0;
1462: }
1.222 sakharuk 1463: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1464: } elsif ($target eq 'web') {
1.356 www 1465: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1466: }
1467: }
1468: }
1469: } elsif ($target eq 'edit') {
1470: $result.=&Apache::edit::tag_start($target,$token);
1471: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1472: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1473: ' '.
1474: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1475: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1476: } elsif ($target eq 'modified') {
1477: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1478: $safeeval,'id','display');
1.159 albertel 1479: if ($constructtag) {
1.225 albertel 1480: #limiting ids to only letters numbers, and space
1.224 www 1481: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1482: $result = &Apache::edit::rebuild_tag($token);
1483: }
1484: }
1485: return $result;
1.11 albertel 1486: }
1487:
1488: sub end_part {
1.159 albertel 1489: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1490: &Apache::lonxml::debug("in end_part $target ");
1491: my $status=$Apache::inputtags::status['-1'];
1492: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1493: my $in_order_show=&ordered_show_check();
1.321 albertel 1494: my $result;
1495: if (!$Apache::lonxml::metamode) {
1496: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1497: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1498: }
1.312 albertel 1499: if ($target eq 'grade') {
1.249 albertel 1500: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1501: !$hidden && $in_order_show) {
1.311 foxr 1502: $result.=&Apache::inputtags::grade;
1.249 albertel 1503: } else {
1504: # move any submission data to .hidden
1505: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1506: }
1.283 albertel 1507: } elsif (($target eq 'web' || $target eq 'tex') &&
1508: !$hidden && $in_order_show) {
1.159 albertel 1509: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1510: $target);
1.212 albertel 1511: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1512: $gradestatus='';
1513: }
1.311 foxr 1514: $result.=$gradestatus;
1.265 sakharuk 1515: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1516: } elsif ($target eq 'edit') {
1.311 foxr 1517: $result.=&Apache::edit::end_table();
1.322 albertel 1518: } elsif ($target eq 'modified') {
1519: $result .= $token->[2];
1.159 albertel 1520: }
1521: pop @Apache::inputtags::status;
1522: $Apache::inputtags::part='';
1.295 albertel 1523: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1524: return $result;
1.11 albertel 1525: }
1.1 albertel 1526:
1.25 albertel 1527: sub start_preduedate {
1.326 albertel 1528: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1529: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1530: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1531: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1532: if (!$Apache::lonhomework::scantronmode &&
1533: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1534: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1535: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1536: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1537: }
1.24 albertel 1538: }
1.159 albertel 1539: return '';
1.24 albertel 1540: }
1541:
1.25 albertel 1542: sub end_preduedate {
1.159 albertel 1543: return '';
1.24 albertel 1544: }
1545:
1.369 foxr 1546: # In all the modes where <postanswerdate> text is
1547: # displayable, all we do is eat up the text between the start/stop
1548: # tags if the conditions are not right to display it.
1.25 albertel 1549: sub start_postanswerdate {
1.326 albertel 1550: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1551: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1552: &Apache::lonnet::allowed('pav',
1553: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1554: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1555: $target eq 'tex' ) {
1.300 albertel 1556: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1557: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1558: (($target eq 'tex') && !$pav)) {
1.326 albertel 1559: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1560: }
1561: }
1562: return '';
1.24 albertel 1563: }
1564:
1.25 albertel 1565: sub end_postanswerdate {
1.159 albertel 1566: return '';
1.24 albertel 1567: }
1568:
1.25 albertel 1569: sub start_notsolved {
1.326 albertel 1570: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1571: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1572: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1573: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1574: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1575: if ($gradestatus =~ /^correct/ &&
1576: &Apache::response::show_answer()) {
1.159 albertel 1577: &Apache::lonxml::debug("skipping");
1.326 albertel 1578: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1579: }
1.24 albertel 1580: }
1.159 albertel 1581: return '';
1.24 albertel 1582: }
1583:
1.25 albertel 1584: sub end_notsolved {
1.159 albertel 1585: return '';
1.24 albertel 1586: }
1587:
1588: sub start_solved {
1.326 albertel 1589: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1590: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1591: $target eq 'tex') {
1592: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1593: if ($gradestatus !~ /^correct/ ||
1594: !&Apache::response::show_answer()) {
1.326 albertel 1595: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1596: }
1.24 albertel 1597: }
1.159 albertel 1598: return '';
1.24 albertel 1599: }
1600:
1601: sub end_solved {
1.248 albertel 1602: return '';
1603: }
1604:
1605: sub start_problemtype {
1.326 albertel 1606: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1607: my $result;
1.339 albertel 1608: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1609: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1610: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1611: if (!defined($mode)) { $mode='show'; }
1612: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1613: my $found=0;
1614: foreach my $type (split(',',$for)) {
1615: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1616: }
1617: if ($mode eq 'show' && !$found) {
1.326 albertel 1618: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1619: }
1620: if ($mode eq 'hide' && $found) {
1.326 albertel 1621: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1622: }
1623: } elsif ($target eq 'edit') {
1624: $result .=&Apache::edit::tag_start($target,$token);
1625: $result.=&Apache::edit::select_arg('Mode:','mode',
1626: [['show','Show'],
1627: ['hide','Hide']]
1628: ,$token);
1629: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1630: [ ['exam','Exam/Quiz Problem'],
1631: ['survey','Survey'],
1632: ['problem','Homework Problem'] ]
1633: ,$token);
1634: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1635: } elsif ($target eq 'modified') {
1636: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1637: $safeeval,'mode','for');
1638: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1639: }
1640: return $result;
1641: }
1642:
1643: sub end_problemtype {
1.159 albertel 1644: return '';
1.24 albertel 1645: }
1.34 albertel 1646:
1647: sub start_startouttext {
1.159 albertel 1648: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1649: my @result=(''.'');
1650: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1651: return (@result);
1.34 albertel 1652: }
1.159 albertel 1653:
1.34 albertel 1654: sub end_startouttext {
1.326 albertel 1655: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1656: my $result='';
1657: my $text='';
1658:
1659: if ($target eq 'edit') {
1.326 albertel 1660: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1661: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1662: <td>".&mt('Delete:').
1.159 albertel 1663: &Apache::edit::deletelist($target,$token)
1664: ."</td>
1.42 albertel 1665: <td>".
1.159 albertel 1666: &Apache::edit::insertlist($target,$token).
1.362 albertel 1667: '</td><td align="right" valign="top">' .
1668: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1669: &Apache::edit::end_row().
1.362 albertel 1670: &Apache::edit::start_spanning_row()."\n".
1.255 www 1671: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1672: }
1673: if ($target eq 'modified') {
1.219 albertel 1674: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1675: }
1676: if ($target eq 'tex') {
1677: $result .= '\noindent ';
1678: }
1679: return $result;
1.34 albertel 1680: }
1.159 albertel 1681:
1.34 albertel 1682: sub start_endouttext {
1.159 albertel 1683: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1684: my $result='';
1685: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1686: if ($target eq "modified") {
1687: $result='<endouttext />'.
1.377 albertel 1688: &Apache::edit::handle_insertafter('startouttext');
1689: }
1.159 albertel 1690: return $result;
1.34 albertel 1691: }
1.159 albertel 1692:
1.34 albertel 1693: sub end_endouttext {
1.159 albertel 1694: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1695: my @result=('','');
1696: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1697: return (@result);
1.34 albertel 1698: }
1.159 albertel 1699:
1.45 albertel 1700: sub delete_startouttext {
1.326 albertel 1701: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1702: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1703: my $text=$$parser['-1']->get_text("/endouttext");
1704: my $ntoken=$$parser['-1']->get_token();
1705: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1706: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1707: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1708: # they did the last time round
1709: &Apache::lonxml::increasedepth($ntoken);
1710: &Apache::lonxml::decreasedepth($ntoken);
1711: return 1;
1.193 www 1712: }
1713:
1714: sub start_simpleeditbutton {
1715: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1716: my $result='';
1.284 albertel 1717: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1718: ($target eq 'web') &&
1.330 albertel 1719: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1720: my $url=$env{'request.noversionuri'};
1.193 www 1721: $url=~s/\?.*$//;
1.367 albertel 1722: my ($symb) = &Apache::lonnet::whichuser();
1.194 www 1723: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.356 www 1724: '<a href="'.$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 1725: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1726: }
1727: return $result;
1728: }
1729:
1730: sub end_simpleeditbutton {
1731: return '';
1.45 albertel 1732: }
1.34 albertel 1733:
1.1 albertel 1734: 1;
1735: __END__
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