Annotation of loncom/homework/structuretags.pm, revision 1.378
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.378 ! albertel 4: # $Id: structuretags.pm,v 1.377 2007/05/23 22:36:21 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)=@_;
50: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
1.339 albertel 51: if ($target eq 'web' || $target eq 'webgrade') {
1.200 albertel 52: return $bodytext;
1.159 albertel 53: }
54: return '';
1.10 albertel 55: }
56:
57: sub end_web {
1.44 ng 58: return '';
1.10 albertel 59: }
60:
61: sub start_tex {
1.326 albertel 62: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 63: my $result='';
1.326 albertel 64: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
1.200 albertel 65: if ($target eq 'tex') {
66: return $bodytext.' ';
1.159 albertel 67: }
1.198 sakharuk 68: return $result;;
1.10 albertel 69: }
70:
71: sub end_tex {
1.44 ng 72: return '';
1.9 albertel 73: }
74:
1.48 albertel 75: sub page_start {
1.345 albertel 76: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
77: $extra_head)=@_;
1.159 albertel 78: my %found;
1.207 albertel 79: foreach my $taginside (@$tagstack) {
1.159 albertel 80: foreach my $taglookedfor ('html','body','form') {
81: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
82: }
83: }
84:
1.343 albertel 85: if ($target eq 'tex') {
86: return
87: &Apache::londefdef::start_html($target,$token,$tagstack,
88: $parstack,$parser,$safeeval);
89: }
90:
1.374 albertel 91: $extra_head.= '
92: <script type="text/javascript">
93: function setSubmittedPart (part) {
94: this.document.lonhomework.submitted.value="part_"+part;
95: }
96: </script>
97: ';
98:
1.344 albertel 99: my %body_args;
100: if (defined($found{'html'})) {
101: $body_args{'skip_phases'}{'head'}=1;
102: } else {
1.343 albertel 103:
1.345 albertel 104: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 105:
1.336 albertel 106: my $css_href = &Apache::lonnet::EXT('resource.0.cssfile');
1.335 albertel 107: if ($css_href =~ /\S/) {
108: &Apache::lonxml::extlink($css_href);
1.343 albertel 109: $extra_head .=
1.335 albertel 110: '<link rel="stylesheet" type="text/css" href="'.$css_href.'" />';
111: }
1.327 albertel 112: if ($target eq 'edit') {
1.343 albertel 113: $extra_head.=&Apache::edit::js_change_detection().
114: "<script type=\"text/javascript\">\n".
115: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
116: &Apache::loncommon::browser_and_searcher_javascript().
117: "\n</script>\n";
118: }
1.159 albertel 119: }
1.343 albertel 120:
1.344 albertel 121: if (defined($found{'body'})) {
122: $body_args{'skip_phases'}{'body'}=1;
123: } elsif (!defined($found{'body'})
124: && $env{'request.state'} eq 'construct') {
1.343 albertel 125: if ($target eq 'web' || $target eq 'edit') {
1.344 albertel 126: # no extra args to bodytag
1.297 albertel 127: }
1.272 albertel 128: } elsif (!defined($found{'body'})) {
1.343 albertel 129: my %add_entries;
1.159 albertel 130: my $background=&Apache::lonxml::get_param('background',$parstack,
131: $safeeval);
1.343 albertel 132: if ($background ne '' ) {
133: $add_entries{'background'} = $background;
134: }
1.344 albertel 135:
1.290 albertel 136: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
137: $safeeval);
1.344 albertel 138: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
139:
140: $body_args{'bgcolor'} = $bgcolor;
141: $body_args{'no_title'} = 1;
142: $body_args{'force_register'} = 1;
143: $body_args{'add_entries'} = \%add_entries;
144: }
1.365 albertel 145: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 146: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
147: \%body_args);
148:
149: if (!defined($found{'body'})
150: && $env{'request.state'} ne 'construct'
151: && ($target eq 'web' || $target eq 'webgrade')) {
152:
1.367 albertel 153: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
1.344 albertel 154: if ($symb eq '' && !$publicuser) {
155: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
156: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
157: $page_start .= $help;
1.159 albertel 158: }
1.344 albertel 159: }
160:
161: if (!defined($found{'body'})) {
1.343 albertel 162: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 163: }
1.344 albertel 164:
1.159 albertel 165: my $form_tag_start;
166: if (!defined($found{'form'})) {
1.337 albertel 167: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.338 albertel 168: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.327 albertel 169: $form_tag_start.=$uri.'" ';
170: if ($target eq 'edit') {
171: $form_tag_start.=&Apache::edit::form_change_detection();
172: }
1.368 albertel 173: $form_tag_start.='>'."\n";
1.355 albertel 174:
175: my $symb=&Apache::lonnet::symbread();
176: if ($symb =~ /\S/) {
177: $symb=
178: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
179: $form_tag_start.=
1.368 albertel 180: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 181: }
1.159 albertel 182: }
1.343 albertel 183: return ($page_start,$form_tag_start);
1.105 albertel 184: }
185:
1.141 matthew 186: #use Time::HiRes();
1.105 albertel 187: sub get_resource_name {
1.159 albertel 188: my ($parstack,$safeeval)=@_;
1.204 albertel 189: if (defined($Apache::lonhomework::name)) {
190: return $Apache::lonhomework::name;
191: }
1.367 albertel 192: my ($symb)=&Apache::lonnet::whichuser();
1.279 albertel 193: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 194: if ($name eq '') {
195: $name=&Apache::lonnet::EXT('resource.title');
196: if ($name eq 'con_lost') { $name = ''; }
197: }
1.204 albertel 198: if ($name!~/\S+/) {
1.284 albertel 199: $name=$env{'request.uri'};
1.205 albertel 200: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 201: }
1.159 albertel 202: $Apache::lonhomework::name=$name;
203: return $name;
1.105 albertel 204: }
205:
206: sub setup_rndseed {
1.159 albertel 207: my ($safeeval)=@_;
208: my $rndseed;
1.367 albertel 209: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 210: if ($env{'request.state'} eq "construct"
211: || $symb eq ''
212: || $Apache::lonhomework::type eq 'practice'
213: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 214: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 215: ['rndseed']);
1.284 albertel 216: $rndseed=$env{'form.rndseed'};
1.159 albertel 217: if (!$rndseed) {
1.162 albertel 218: $rndseed=$Apache::lonhomework::history{'rndseed'};
219: if (!$rndseed) {
220: $rndseed=time;
221: }
1.284 albertel 222: $env{'form.rndseed'}=$rndseed;
1.162 albertel 223: }
1.374 albertel 224: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
225: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 226: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 227: srand(time);
228: $rndseed=int(rand(2100000000));
1.284 albertel 229: $env{'form.rndseed'}=$rndseed;
230: delete($env{'form.resetdata'});
231: delete($env{'form.newrandomization'});
1.159 albertel 232: }
1.187 albertel 233: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 234: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 235: }
1.247 albertel 236: if ($Apache::lonhomework::history{'resource.CODE'}) {
237: $rndseed=&Apache::lonnet::rndseed();
238: }
1.221 albertel 239: if ($safeeval) {
240: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 241: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 242: }
1.159 albertel 243: }
244: return $rndseed;
1.105 albertel 245: }
246:
1.268 albertel 247: sub remember_problem_state {
248: return '
1.284 albertel 249: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
250: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
251: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 252: }
253:
1.105 albertel 254: sub problem_edit_header {
1.268 albertel 255: return '<input type="hidden" name="submitted" value="edit" />'.
256: &Apache::structuretags::remember_problem_state().'
1.210 albertel 257: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 258: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
1.328 albertel 259: <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 260: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
261: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
262: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.359 albertel 263: &Apache::loncommon::help_open_menu('Problem Editing Help','Problem_Editor_XML_Index',5,'Authoring',undef,undef,undef,'Problem Editing Help')
1.260 albertel 264: .'</td></tr></table>'.
1.282 albertel 265: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 266: }
267:
268: sub problem_edit_footer {
1.210 albertel 269: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 270: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
1.348 albertel 271: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 272: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 273: }
274:
1.235 albertel 275: sub option {
276: my ($value,$name) = @_;
277: my $result ="<option value='".$value."' ";
1.284 albertel 278: if ($env{'form.'.$name} eq $value) {
1.235 albertel 279: $result.=" selected='on' ";
280: }
281: $result.='>';
282: return $result;
283: }
284:
1.105 albertel 285: sub problem_web_to_edit_header {
1.159 albertel 286: my ($rndseed)=@_;
1.313 albertel 287: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
1.373 albertel 288: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
1.313 albertel 289: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 290: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
291: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 292: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 293: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 294: $rndseed.'"
1.270 albertel 295: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 296: <label><input type="checkbox" name="showallfoils" ';
1.315 albertel 297: my $show_all_foils_text =
298: ($Apache::lonhomework::parsing_a_task) ?
299: &mt(' Show All Instances')
300: : &mt(' Show All Foils');
301:
1.284 albertel 302: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.371 albertel 303: $result.= ' />'.$show_all_foils_text.'</label>'.
1.228 www 304: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.371 albertel 305: '<hr />';
1.313 albertel 306: if (!$Apache::lonhomework::parsing_a_task) {
307: $result.="
1.235 albertel 308: <nobr>
309: Problem Status:
310: <select name='problemstate'>
1.270 albertel 311: <option value=''></option>
1.235 albertel 312: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
313: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
314: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
315: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
316: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
317: </select>
318: </nobr>
319: <nobr>
320: Problem Type:
321: <select name='problemtype'>
1.270 albertel 322: <option value=''></option>
1.242 albertel 323: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
324: ".&option('problem','problemtype').&mt("Homework problem")."</option>
325: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 326: </select>
327: </nobr>
328: <nobr>
329: Feedback Mode:
330: <select name='problemstatus'>
331: <option value=''></option>
1.242 albertel 332: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
333: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 334: </select>
335: </nobr>
1.242 albertel 336: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 337: <hr />";
1.313 albertel 338: my $numtoanalyze=$env{'form.numtoanalyze'};
339: if (!$numtoanalyze) { $numtoanalyze=20; }
340: $result.= '<input type="submit" name="problemmode" value='.
341: &mt('"Calculate answers').'" /> for
1.136 albertel 342: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 343: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
344: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 345: '',undef,undef,300).
1.210 albertel 346: '<hr />';
1.376 albertel 347: } elsif ($Apache::lonhomework::parsing_a_task) {
348: $result.="
349: <nobr>
350: Problem Status:
351: <select name='problemstate'>
352: <option value=''></option>
353: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
354: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
355: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
356: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
357: </select>
358: </nobr>
359: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
360: <hr />";
1.313 albertel 361: }
1.159 albertel 362: return $result;
1.48 albertel 363: }
364:
1.65 albertel 365: sub initialize_storage {
1.357 albertel 366: my ($given_symb) = @_;
1.353 albertel 367: undef(%Apache::lonhomework::results);
368: undef(%Apache::lonhomework::history);
1.357 albertel 369: my ($symb,$courseid,$domain,$name) =
1.367 albertel 370: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 371:
372: # anonymous users (CODEd exams) have no data
373: if ($name eq 'anonymous'
374: && !defined($domain)) {
375: return;
376: }
377:
1.333 albertel 378: if ($env{'request.state'} eq 'construct'
379: || $symb eq ''
380: || $Apache::lonhomework::type eq 'practice') {
381:
382: my $namespace = $symb || $env{'request.uri'};
383: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 384: ($env{'form.resetdata'} eq &mt('New Problem Variation')
385: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 386: $env{'form.newrandomization'} eq &mt('New Randomization')) {
387: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
388: &Apache::lonxml::debug("Attempt reset");
389: }
1.159 albertel 390: %Apache::lonhomework::history=
1.333 albertel 391: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 392: my ($temp)=keys %Apache::lonhomework::history ;
393: &Apache::lonxml::debug("Return message of $temp");
394: } else {
395: %Apache::lonhomework::history=
396: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
397: }
1.353 albertel 398:
1.159 albertel 399: #ignore error conditions
1.67 albertel 400: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 401: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 402: }
403:
404: # -------------------------------------------------------------finalize_storage
405: # Stores away the result has to a student's environment
406: # checks form.grade_ for specific values, other wises stores
407: # to the running users environment
1.285 raeburn 408: # Will increment totals for attempts, students, and corrects
409: # if running user has student role.
1.65 albertel 410: sub finalize_storage {
1.357 albertel 411: my ($given_symb) = @_;
1.159 albertel 412: my $result;
1.289 albertel 413: if (%Apache::lonhomework::results) {
1.323 albertel 414: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
415: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 416: my ($symb,$courseid,$domain,$name) =
1.367 albertel 417: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 418: if ($env{'request.state'} eq 'construct'
419: || $symb eq ''
420: || $Apache::lonhomework::type eq 'practice') {
421: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 422: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 423: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 424: $namespace,'',$domain,$name);
1.159 albertel 425: &Apache::lonxml::debug('Construct Store return message:'.$result);
426: } else {
427: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
428: $symb,$courseid,$domain,$name);
429: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 430: if ($env{'request.role'} =~/^st/) {
431: &store_aggregates($symb,$courseid);
432: }
1.159 albertel 433: }
1.323 albertel 434: } else {
435: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 436: }
1.159 albertel 437: return $result;
1.65 albertel 438: }
1.289 albertel 439: use Data::Dumper;
1.65 albertel 440:
1.285 raeburn 441: # -------------------------------------------------------------store_aggregates
442: # Sends hash of values to be incremented in nohist_resourcetracker.db
443: # for the course. Increments total number of attempts, unique students
444: # and corrects for each part for an instance of a problem, as appropriate.
445: sub store_aggregates {
446: my ($symb,$courseid) = @_;
1.286 albertel 447: my %aggregate;
448: my @parts;
1.288 albertel 449: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
450: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 451: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 452: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 453: push(@parts, $1);
1.285 raeburn 454: }
455: }
1.286 albertel 456: foreach my $part (@parts) {
457: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
458: eq 'APPROX_ANS' ||
459: $Apache::lonhomework::results{'resource.'.$part.'.award'}
460: eq 'EXACT_ANS') {
1.287 albertel 461: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 462: }
1.286 albertel 463: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 464: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 465: } else {
1.293 albertel 466: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 467: if ($last_reset) {
1.293 albertel 468: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 469: $aggregate{$symb."\0".$part."\0users"} = 1;
470: }
471: }
1.285 raeburn 472: }
1.287 albertel 473: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 474: }
1.292 raeburn 475: if (keys (%aggregate) > 0) {
1.289 albertel 476: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 477: $cdomain,$cname);
478: }
479: }
1.289 albertel 480:
1.65 albertel 481: sub checkout_msg {
1.211 albertel 482: my %lt=&Apache::lonlocal::texthash(
483: 'resource'=>'The resource needs to be checked out',
484: '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.',
485: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
486: 'checkout'=>'Check out Exam for Viewing',
487: 'checkout?'=>'Check out Exam?');
1.352 albertel 488: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 489: return (<<ENDCHECKOUT);
1.211 albertel 490: <h2>$lt{'resource'}</h2>
491: <p>$lt{'id_expln'}</p>
492: <font color="red">
493: <p>$lt{'warning'}</p>
1.91 albertel 494: </font>
1.352 albertel 495: <form name="checkout" method="POST" action="$uri">
1.91 albertel 496: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 497: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 498: </form>
499: ENDCHECKOUT
500: }
501:
1.252 albertel 502: sub firstaccess_msg {
1.253 albertel 503: my ($time,$symb)=@_;
504: my ($map)=&Apache::lonnet::decode_symb($symb);
505: my $foldertitle=&Apache::lonnet::gettitle($map);
506: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.352 albertel 507: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.252 albertel 508: return (<<ENDCHECKOUT);
1.253 albertel 509: <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 510: <form name="markaccess" method="POST" action="$uri">
1.252 albertel 511: <input type="hidden" name="markaccess" value="yes" />
512: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
513: </form>
514: ENDCHECKOUT
515: }
516:
1.204 albertel 517: sub init_problem_globals {
518: my ($type)=@_;
519: #initialize globals
1.308 foxr 520: # For problems, we start out in part 0 (outside a <part> tag).
521: # and part 0 is used to describe the main body of the <problem>
522: #
1.204 albertel 523: if ($type eq 'problem') {
524: $Apache::inputtags::part='0';
525: @Apache::inputtags::partlist=('0');
1.266 albertel 526: $Apache::lonhomework::problemstatus=&get_problem_status('0');
527: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 528:
1.266 albertel 529: } elsif ($type eq 'library') {
1.204 albertel 530: $Apache::inputtags::part='';
531: @Apache::inputtags::partlist=();
532: $Apache::lonhomework::problemstatus='';
1.266 albertel 533: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 534:
1.304 albertel 535: } elsif ($type eq 'Task') {
536: $Apache::inputtags::part='0';
537: @Apache::inputtags::partlist=('0');
538: $Apache::lonhomework::problemstatus='';
539: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 540: }
541: @Apache::inputtags::responselist = ();
542: @Apache::inputtags::importlist = ();
543: @Apache::inputtags::previous=();
544: @Apache::inputtags::previous_version=();
545: $Apache::structuretags::printanswer='No';
546: @Apache::structuretags::whileconds=();
547: @Apache::structuretags::whilebody=();
548: @Apache::structuretags::whileline=();
549: $Apache::lonhomework::scantronmode=0;
550: undef($Apache::lonhomework::name);
1.358 albertel 551: undef($Apache::lonhomework::default_type);
552: undef($Apache::lonhomework::type);
1.204 albertel 553: }
554:
555: sub reset_problem_globals {
556: my ($type)=@_;
557: undef(%Apache::lonhomework::history);
558: undef(%Apache::lonhomework::results);
559: undef($Apache::inputtags::part);
1.208 albertel 560: #don't undef this, lonhomework.pm takes care of this, we use this to
561: #detect if we try to do 2 problems in one file
562: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 563: undef($Apache::lonhomework::name);
1.358 albertel 564: undef($Apache::lonhomework::default_type);
565: undef($Apache::lonhomework::type);
566: undef($Apache::lonhomework::scantronmode);
567: undef($Apache::lonhomework::problemstatus);
568: undef($Apache::lonhomework::ignore_response_errors);
1.204 albertel 569: }
570:
1.241 albertel 571: sub set_problem_state {
1.240 albertel 572: my ($part)=@_;
1.284 albertel 573: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 574: $Apache::lonhomework::history{"resource.$part.solved"}=
575: 'correct_by_student';
576: }
577: }
578:
1.241 albertel 579: sub get_problem_status {
580: my ($part)=@_;
1.267 albertel 581: my $problem_status;
1.284 albertel 582: if ($env{'request.state'} eq 'construct' &&
583: defined($env{'form.problemstatus'})) {
584: $problem_status=$env{'form.problemstatus'};
1.267 albertel 585: } else {
586: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
587: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 588: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 589: }
590: return $problem_status;
591: }
592:
1.9 albertel 593: sub start_problem {
1.326 albertel 594: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 595:
1.311 foxr 596: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 597: if (!$Apache::lonxml::metamode) {
598: &Apache::lonxml::startredirection();
599: }
1.311 foxr 600:
1.308 foxr 601: # Problems don't nest and we don't allow more than one <problem> in
602: # a .problem file.
603: #
1.184 albertel 604: if ( $Apache::inputtags::part ne '' ||
605: $Apache::lonhomework::parsing_a_problem) {
606: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 607: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 608: return '';
609: }
1.184 albertel 610:
611: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 612: &init_problem_globals('problem');
1.166 albertel 613:
1.284 albertel 614: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 615: $Apache::lonhomework::scantronmode=1;
616: }
1.161 albertel 617:
1.159 albertel 618: if ($target ne 'analyze') {
1.284 albertel 619: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 620: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 621: if (($env{'request.state'} eq 'construct') &&
622: defined($env{'form.problemtype'})) {
623: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 624: }
1.332 albertel 625: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 626: }
1.164 albertel 627: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 628: my $uri=$env{'request.uri'};
1.159 albertel 629: if ($uri=~/\.(\w+)$/) {
630: $Apache::lonhomework::type=$1;
631: &Apache::lonxml::debug("Using type of $1");
632: } else {
633: $Apache::lonhomework::type='problem';
634: &Apache::lonxml::debug("Using default type, problem, :$uri:");
635: }
1.87 albertel 636: }
1.301 albertel 637: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 638:
1.363 albertel 639: &initialize_storage();
1.366 albertel 640: if ($target eq 'web') {
641: &Apache::lonxml::debug(" grading history ");
642: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
643: }
1.363 albertel 644:
1.159 albertel 645: #added vars to the scripting enviroment
1.213 albertel 646: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 647: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 648: &Apache::run::run($expression,$safeeval);
1.159 albertel 649: my $status;
650: my $accessmsg;
651:
1.343 albertel 652: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 653: my ($result,$form_tag_start);
1.354 albertel 654: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
655: || $target eq 'edit') {
1.350 albertel 656: ($result,$form_tag_start) =
657: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
658: $name);
659: }
660:
1.284 albertel 661: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 662:
663: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
664: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
665: $target eq 'tex') {
666: #handle exam checkout
667: if ($Apache::lonhomework::type eq 'exam') {
668: my $token=
669: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 670: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 671: $token=&Apache::lonxml::maketoken();
672: $Apache::lonhomework::history{"resource.0.outtoken"}=
673: $token;
674: }
1.343 albertel 675: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 676: }
1.284 albertel 677: if ($env{'form.markaccess'}) {
1.252 albertel 678: &Apache::lonnet::set_first_access('map');
679: }
1.159 albertel 680: #handle rand seed in construction space
681: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 682: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 683: if ($env{'request.state'} ne "construct" &&
684: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 685: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
686: $rndseed.'" />'.
687: '<input type="submit" name="resetdata"
1.334 albertel 688: value="'.&mt('New Problem Variation').'" />';
689: if (exists($env{'form.username'})) {
690: $form_tag_start.=
1.164 albertel 691: '<input type="hidden" name="username"
1.284 albertel 692: value="'.$env{'form.username'}.'" />';
1.334 albertel 693: }
1.333 albertel 694: if ($env{'request.role.adv'}) {
1.267 albertel 695: $form_tag_start.=
1.300 albertel 696: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 697: if (defined($env{'form.showallfoils'})) {
1.267 albertel 698: $form_tag_start.='checked="on"';
699: }
1.300 albertel 700: $form_tag_start.= ' />'.&mt(' Show All Foils').
701: '</label>';
1.267 albertel 702: }
703: $form_tag_start.='<hr />';
1.162 albertel 704: }
1.324 albertel 705:
706: ($status,$accessmsg,my $slot_name,my $slot) =
707: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 708: push (@Apache::inputtags::status,$status);
1.324 albertel 709:
1.159 albertel 710: my $expression='$external::datestatus="'.$status.'";';
711: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
712: &Apache::run::run($expression,$safeeval);
713: &Apache::lonxml::debug("Got $status");
1.324 albertel 714:
1.159 albertel 715: if (( $status eq 'CLOSED' ) ||
716: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 717: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 718: ( $status eq 'BANNED') ||
1.216 albertel 719: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 720: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 721: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 722: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
723: $style);
1.159 albertel 724: if ( $target eq "web" ) {
1.343 albertel 725: my $msg;
1.159 albertel 726: if ($status eq 'UNAVAILABLE') {
1.245 albertel 727: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 728: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 729: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 730: }
1.216 albertel 731: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 732: $msg.='The problem '.$accessmsg;
733: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 734: $msg.=&checkout_msg();
1.252 albertel 735: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 736: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 737: } elsif ($status eq 'NOT_IN_A_SLOT') {
738: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 739: }
740: $result.=$msg.'<br />';
741: } elsif ($target eq 'tex') {
1.332 albertel 742: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
743: : '\begin{minipage}{\textwidth}';
744: $result.='\begin{document}\noindent \vskip 1 mm '.
745: $startminipage.'\vskip 0 mm';
1.159 albertel 746: if ($status eq 'UNAVAILABLE') {
1.211 albertel 747: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 748: } else {
1.211 albertel 749: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 750: }
751: }
1.324 albertel 752: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 753: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
754: $style);
1.324 albertel 755: if ($target eq 'web') {
1.375 albertel 756: $result .=
757: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 758: } elsif ($target eq 'grade') {
759: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
760: 'problem');
761: }
1.159 albertel 762: } elsif ($target eq 'web') {
1.360 albertel 763: if ($status eq 'CAN_ANSWER'
764: && $slot_name ne ''
765: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
766: # unproctored slot access, self checkin
767: &Apache::bridgetask::check_in('problem',undef,undef,
768: $slot_name);
769: }
1.368 albertel 770: $result.="\n $form_tag_start \t".
1.227 albertel 771: '<input type="hidden" name="submitted" value="yes" />';
772: # create a page header and exit
1.284 albertel 773: if ($env{'request.state'} eq "construct") {
774: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 775: }
776: # if we are viewing someone else preserve that info
1.284 albertel 777: if (defined $env{'form.grade_symb'}) {
1.227 albertel 778: foreach my $field ('symb','courseid','domain','username') {
779: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 780: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 781: }
782: }
783: } elsif ($target eq 'tex') {
1.319 foxr 784: $result .= 'INSERTTEXFRONTMATTERHERE';
785:
1.99 sakharuk 786: }
1.159 albertel 787: } elsif ($target eq 'edit') {
1.343 albertel 788: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 789: $Apache::lonxml::warnings_error_header=
790: &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 791: my $temp=&Apache::edit::insertlist($target,$token);
792: $result.=$temp;
793: } elsif ($target eq 'modified') {
794: $result=$token->[4];
795: } else {
796: # page_start returned a starting result, delete it if we don't need it
797: $result = '';
1.99 sakharuk 798: }
1.159 albertel 799: return $result;
1.9 albertel 800: }
801:
802: sub end_problem {
1.159 albertel 803: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 804: my $result;
1.310 foxr 805:
1.321 albertel 806: if (!$Apache::lonxml::metamode) {
807: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 808: $Apache::lonxml::post_evaluate=0;
1.321 albertel 809: }
1.319 foxr 810:
811: if ($target eq 'tex') {
1.321 albertel 812: # Figure out the front matter and replace the
813: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
814: # this in end_problem because whether or not we display due
815: # dates depends on whether due dates have already been
816: # displayed in the problem parts.
817:
1.319 foxr 818: my $frontmatter = '';
819: my $startminipage = '';
820: if (not $env{'form.problem_split'}=~/yes/) {
821: $startminipage = '\begin{minipage}{\textwidth}';
822: }
823: my $id = $Apache::inputtags::part;
824: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
825: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
826: my @packages = split /,/,$packages;
827: my $allow_print_points = 0;
828: foreach my $partial_key (@packages) {
829: if ($partial_key=~m/^part_0$/) {
830: $allow_print_points=1;
831: }
832: }
833: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
834: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
835: if (lc($env{'course.'.$env{'request.course.id'}.
836: '.disableexampointprint'}) eq 'yes') {
837: $allow_print_points=0;
838: }
839: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
840: 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 ';
841: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
842: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
843:
844: # Figure out what the due date is and if we need to print
845: # it in the problem header. We have been logging the
846: # last due date written to file.
847:
848: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
849: my $duedate = POSIX::strftime("%c",localtime($duetime));
850: my $temp_file;
851: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
852:
853: # Figure out what the last printed due date is or set it
854: # to the epoch if no duedates have been printed.
855:
856: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
857: if (-e $filename) {
858: $temp_file = Apache::File->new($filename);
859: my @due_file = <$temp_file>;
860: $due_file_content = $due_file[$#due_file];
861: chomp $due_file_content;
862: }
863:
864: # We display the due date iff it is not the same as the last
865: # duedate in problem header ($due_file_content), and
866: # none of our parts displayed a duedate.
867: #
868: my $parts_with_displayduedate;
869: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
870: $parts_with_displayduedate =
871: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
872: } else {
873: $parts_with_displayduedate = 0;
874: }
875: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
876: $temp_file = Apache::File->new('>'.$filename);
877: print $temp_file "$duetime\n";
878: if (not $env{'request.symb'} =~ m/\.page_/) {
879: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
880: $frontmatter .= $begin_doc.
881: '\textit{Due date: '.$duedate.'} '.$toc_line;
882: } else {
883: $frontmatter.= $begin_doc.$toc_line;
884: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
885: }
886: } else {
887: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
888: }
889: } else {
890: if (not $env{'request.symb'} =~ m/\.page_/) {
891: $frontmatter .= $begin_doc.$toc_line;
892: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
893: } else {
894: $frontmatter .= '\vskip 1mm \\\\\\\\';
895: }
896: }
897: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
898: }
899:
1.159 albertel 900: my $status=$Apache::inputtags::status['-1'];
901: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
902: $target eq 'tex') {
1.249 albertel 903: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 904: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 905: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
906: &Apache::inputtags::grade;
1.324 albertel 907: } elsif ($status eq 'NEEDS_CHECKIN') {
908: # no need to grade, and don't want to hide data
1.249 albertel 909: } else {
910: # move any submission data to .hidden
911: &Apache::inputtags::hidealldata($Apache::inputtags::part);
912: }
1.159 albertel 913: } elsif ( ($target eq 'web' || $target eq 'tex') &&
914: $Apache::inputtags::part eq '0' &&
1.252 albertel 915: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 916: # if part is zero, no <part>s existed, so we need show the current
917: # grading status
918: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
919: $result.= $gradestatus;
920: }
921: if (
1.284 albertel 922: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 923: ($target eq 'answer') || ($target eq 'tex')
924: ) {
1.227 albertel 925: if ($target ne 'tex' &&
1.284 albertel 926: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 927: $result.="</form>";
1.348 albertel 928: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 929: }
930: if ($target eq 'web') {
1.346 albertel 931: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 932: } elsif ($target eq 'tex') {
1.178 sakharuk 933: my $endminipage = '';
1.284 albertel 934: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 935: $endminipage = '\end{minipage}';
936: }
1.284 albertel 937: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 938: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 939: } else {
1.262 sakharuk 940: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 941: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 942: $result .= $endminipage.'\end{document} ';
943: } else {
944: $result .= '';
945: }
1.159 albertel 946: }
947: }
948: }
949: if ($target eq 'grade') {
950: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
951: &finalize_storage();
952: }
1.284 albertel 953: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
954: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 955: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 956: # normally we get it from above, but in CSTR
1.172 albertel 957: # we always show answer mode too.
1.159 albertel 958: }
959: } elsif ($target eq 'meta') {
960: if ($Apache::inputtags::part eq '0') {
1.179 albertel 961: @Apache::inputtags::response=();
1.159 albertel 962: $result=&Apache::response::mandatory_part_meta;
963: }
1.215 albertel 964: $result.=&Apache::response::meta_part_order();
1.258 albertel 965: $result.=&Apache::response::meta_response_order();
1.159 albertel 966: } elsif ($target eq 'edit') {
967: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 968: $result .= &problem_edit_footer();
1.320 albertel 969: } elsif ($target eq 'modified') {
970: $result .= $token->[2];
1.159 albertel 971: }
1.155 albertel 972:
1.284 albertel 973: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 974: &Apache::inputtags::check_for_duplicate_ids();
975: }
1.204 albertel 976:
977: &reset_problem_globals('problem');
1.159 albertel 978:
979: return $result;
1.48 albertel 980: }
981:
1.108 albertel 982:
1.48 albertel 983: sub start_library {
1.159 albertel 984: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 985: my ($result,$form_tag_start);
1.371 albertel 986: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 987: &init_problem_globals('library');
988: $Apache::lonhomework::type='problem';
989: }
1.159 albertel 990: if ($target eq 'edit') {
1.343 albertel 991: ($result,$form_tag_start)=
992: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
993: 'Edit');
994: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 995: my $temp=&Apache::edit::insertlist($target,$token);
996: $result.=$temp;
997: } elsif ($target eq 'modified') {
998: $result=$token->[4];
1.340 albertel 999: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1000: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1001: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1002: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1003: ($result,$form_tag_start)=
1004: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1005: $name);
1.159 albertel 1006: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1007: $result.=" \n $form_tag_start".
1.159 albertel 1008: '<input type="hidden" name="submitted" value="yes" />';
1009: $result.=&problem_web_to_edit_header($rndseed);
1010: }
1011: return $result;
1.48 albertel 1012: }
1013:
1014: sub end_library {
1.159 albertel 1015: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1016: my $result='';
1017: if ($target eq 'edit') {
1018: $result=&problem_edit_footer();
1.371 albertel 1019: } elsif ($target eq 'web'
1020: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1021: && $env{'request.state'} eq "construct") {
1.349 albertel 1022: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1023: }
1.371 albertel 1024: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1025: &reset_problem_globals('library');
1026: }
1.159 albertel 1027: return $result;
1.197 www 1028: }
1029:
1030: sub start_definetag {
1.326 albertel 1031: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1032:
1033: my $result;
1034:
1035: my $name = $token->[2]->{'name'};
1.326 albertel 1036: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 1037: if ($name=~/^\//) {
1038: $result=
1039: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
1040: } else {
1041: $result=
1042: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
1043: }
1044: $skip=~s/\</\<\;/gs;
1045: $skip=~s/\>/\>\;/gs;
1046: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1047: return $result;
1048: }
1049:
1050: sub end_definetag {
1051: return '';
1.1 albertel 1052: }
1053:
1054: sub start_block {
1.201 albertel 1055: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1056:
1057: my $result;
1.1 albertel 1058:
1.339 albertel 1059: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1060: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1061: my $code = $token->[2]->{'condition'};
1.201 albertel 1062: if (defined($code)) {
1.137 albertel 1063: if (!$Apache::lonxml::default_homework_loaded) {
1064: &Apache::lonxml::default_homework_load($safeeval);
1065: }
1.131 albertel 1066: $result = &Apache::run::run($code,$safeeval);
1067: &Apache::lonxml::debug("block :$code: returned :$result:");
1068: } else {
1069: $result='1';
1070: }
1071: if ( ! $result ) {
1.201 albertel 1072: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1073: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1074: }
1075: $result='';
1076: } elsif ($target eq 'edit') {
1077: $result .=&Apache::edit::tag_start($target,$token);
1078: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1079: $token,40);
1080: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1081: } elsif ($target eq 'modified') {
1082: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1083: $safeeval,'condition');
1084: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1085: }
1.131 albertel 1086: return $result;
1.1 albertel 1087: }
1088:
1089: sub end_block {
1.167 www 1090: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1091: my $result;
1092: if ($target eq "edit") {
1093: $result.= &Apache::edit::tag_end($target,$token,'');
1094: }
1095: return $result;
1096: }
1097:
1098: sub start_languageblock {
1.201 albertel 1099: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1100:
1101: my $result;
1102:
1.339 albertel 1103: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1104: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1105: my $include = $token->[2]->{'include'};
1106: my $exclude = $token->[2]->{'exclude'};
1107: my %languages=&Apache::loncommon::display_languages();
1108: $result='1';
1109: if ($include) {
1110: $result='';
1111: foreach (split(/\,/,$include)) {
1112: if ($languages{$_}) { $result='1'; }
1113: }
1114: }
1115: if ($exclude) {
1116: foreach (split(/\,/,$exclude)) {
1117: if ($languages{$_}) { $result='0'; }
1118: }
1119: }
1120: if ( ! $result ) {
1121: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1122: $style);
1123: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1124: }
1125: $result='';
1.167 www 1126: } elsif ($target eq 'edit') {
1127: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1128: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1129: $token,40);
1.211 albertel 1130: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1131: $token,40);
1132: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1133: } elsif ($target eq 'modified') {
1134: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1135: $safeeval,'include',
1136: 'exclude');
1.167 www 1137: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1138: }
1139: return $result;
1140: }
1141:
1142: sub end_languageblock {
1.170 www 1143: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1144: my $result;
1.201 albertel 1145: if ($target eq "edit") {
1.170 www 1146: $result.= &Apache::edit::tag_end($target,$token,'');
1147: }
1148: return $result;
1149: }
1150:
1151: sub start_instructorcomment {
1.201 albertel 1152: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1153:
1154: my $result;
1155:
1.339 albertel 1156: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1157: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1158: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1159: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1160: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1161: $parser,$style);
1.170 www 1162: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1163: }
1164: $result='';
1165: } elsif ($target eq 'edit') {
1166: $result .=&Apache::edit::tag_start($target,$token);
1167: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1168: }
1169: return $result;
1170: }
1171:
1172: sub end_instructorcomment {
1.159 albertel 1173: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1174: my $result;
1175: if ($target eq "edit") {
1176: $result.= &Apache::edit::tag_end($target,$token,'');
1177: }
1178: return $result;
1.4 tsai 1179: }
1180:
1181: sub start_while {
1.326 albertel 1182: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1183:
1.160 albertel 1184: my $result;
1.339 albertel 1185: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1186: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1187: my $code = $token->[2]->{'condition'};
1.4 tsai 1188:
1.160 albertel 1189: push( @Apache::structuretags::whileconds, $code);
1190: if (!$Apache::lonxml::default_homework_loaded) {
1191: &Apache::lonxml::default_homework_load($safeeval);
1192: }
1193: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1194: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1195: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1196: push( @Apache::structuretags::whileline, $token->[5]);
1197: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1198: if ( $result ) {
1199: &Apache::lonxml::newparser($parser,\$bodytext);
1200: }
1201: } elsif ($target eq 'edit') {
1202: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1203: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1204: $token,40);
1205: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1206: } elsif ($target eq 'modified') {
1207: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1208: $safeeval,'condition');
1209: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1210: }
1.160 albertel 1211: return $result;
1.4 tsai 1212: }
1213:
1214: sub end_while {
1.159 albertel 1215: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1216: my $result;
1217:
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 = pop(@Apache::structuretags::whileconds);
1221: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1222: my $line = pop(@Apache::structuretags::whileline);
1223: my $return = &Apache::run::run($code,$safeeval);
1224: my $starttime=time;
1225: my $error=0;
1226: while ($return) {
1227: if (time-$starttime >
1228: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 ! albertel 1229: $return = 0; $error=1; next;
1.161 albertel 1230: }
1231: $result.=&Apache::scripttag::xmlparse($bodytext);
1232: $return = &Apache::run::run($code,$safeeval);
1233: }
1234: if ($error) {
1.270 albertel 1235: &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 1236: }
1237: } elsif ($target eq "edit") {
1238: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1239: }
1.160 albertel 1240: return $result;
1.1 albertel 1241: }
1.6 tsai 1242:
1.160 albertel 1243: # <randomlist show="1">
1.6 tsai 1244: # <tag1>..</tag1>
1245: # <tag2>..</tag2>
1246: # <tag3>..</tag3>
1.160 albertel 1247: # ...
1.6 tsai 1248: # </randomlist>
1249: sub start_randomlist {
1.326 albertel 1250: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1251: my $result;
1.339 albertel 1252: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1253: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1254: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1255: my $b_parser= HTML::LCParser->new(\$body);
1256: $b_parser->xml_mode(1);
1257: $b_parser->marked_sections(1);
1.159 albertel 1258: my $b_tok;
1259: my @randomlist;
1260: my $list_item;
1261: while($b_tok = $b_parser->get_token() ) {
1262: if($b_tok->[0] eq 'S') { # start tag
1263: # get content of the tag until matching end tag
1264: # get all text upto the matching tag
1265: # and push the content into @randomlist
1266: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1267: $b_parser);
1268: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1269: push(@randomlist,$list_item);
1270: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1271: # $list_item</b>";
1272: }
1273: if($b_tok->[0] eq 'T') { # text
1274: # what to do with text in between tags?
1275: # print "<b>TEXT $b_tok->[1]</b><br />";
1276: }
1277: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1278: # print "<b>END-TAG $b_tok->[1]</b><br />";
1279: # }
1280: }
1.303 albertel 1281: if (@randomlist) {
1282: my @idx_arr = (0 .. $#randomlist);
1283: &Apache::structuretags::shuffle(\@idx_arr);
1284: my $bodytext = '';
1285: my $show=$#randomlist;
1286: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1287: $showarg--;
1288: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1289: for(0 .. $show) {
1290: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1291: }
1292: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1293: }
1294: } elsif ($target eq 'edit' ) {
1295: $result .=&Apache::edit::tag_start($target,$token);
1296: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1297: $token,5);
1298: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1299: } elsif ($target eq 'modified' ) {
1300: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1301: $safeeval,'show');
1302: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1303: }
1304: return $result;
1.7 tsai 1305: }
1306:
1307: sub shuffle {
1308: my $a=shift;
1309: my $i;
1.303 albertel 1310: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1311: &Apache::response::pushrandomnumber();
1.159 albertel 1312: for($i=@$a;--$i;) {
1313: my $j=int(&Math::Random::random_uniform() * ($i+1));
1314: next if $i == $j;
1315: @$a[$i,$j] = @$a[$j,$i];
1316: }
1.251 albertel 1317: &Apache::response::poprandomnumber();
1.7 tsai 1318: }
1.6 tsai 1319: }
1320:
1321: sub end_randomlist {
1.159 albertel 1322: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1323: my $result;
1324: if ($target eq 'edit' ) {
1325: $result=&Apache::edit::tag_end($target,$token,
1326: 'End Randomly Parsed Block');
1327: }
1328: return $result;
1.6 tsai 1329: }
1330:
1.283 albertel 1331: sub ordered_show_check {
1332: my $last_part=$Apache::inputtags::partlist[-2];
1333: my $in_order=
1334: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1335: my $in_order_show=1;
1336: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1337: $in_order_show=&Apache::response::check_status($last_part);
1338: }
1339: return $in_order_show;
1340: }
1341:
1.11 albertel 1342: sub start_part {
1.326 albertel 1343: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1344: if (!$Apache::lonxml::metamode) {
1345: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1346: # duedates.
1347: }
1.159 albertel 1348: my $result='';
1349: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1350: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1351: $Apache::inputtags::part=$id;
1.177 albertel 1352: push(@Apache::inputtags::partlist,$id);
1353: @Apache::inputtags::response=();
1.159 albertel 1354: @Apache::inputtags::previous=();
1355: @Apache::inputtags::previous_version=();
1.241 albertel 1356: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1357: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1358: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1359: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1360: my $in_order_show=&ordered_show_check();
1.214 albertel 1361: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1362: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1363: &Apache::run::run($expression,$safeeval);
1.159 albertel 1364:
1365: if ($target eq 'meta') {
1.224 www 1366: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1367: return &Apache::response::mandatory_part_meta.
1368: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1369: } elsif ($target eq 'web' || $target eq 'grade' ||
1370: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1371: if ($hidden || !$in_order_show) {
1.326 albertel 1372: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1373: } else {
1374: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1375: push (@Apache::inputtags::status,$status);
1376: my $expression='$external::datestatus="'.$status.'";';
1377: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1378: &Apache::run::run($expression,$safeeval);
1.284 albertel 1379: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1380: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1381: }
1.216 albertel 1382: if (( $status eq 'CLOSED' ) ||
1383: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1384: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1385: ( $status eq 'BANNED') ||
1386: ( $status eq 'UNAVAILABLE') ||
1387: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1388: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1389: $style);
1.159 albertel 1390: if ( $target eq "web" ) {
1.211 albertel 1391: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1392: } elsif ( $target eq 'tex' ) {
1.284 albertel 1393: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1394: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1395: } else {
1.211 albertel 1396: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1397: }
1.159 albertel 1398: }
1399: } else {
1400: if ($target eq 'tex') {
1.284 albertel 1401: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1402: if ($$tagstack[-2] eq 'td') {
1403: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1404: } else {
1405: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1406: }
1.195 sakharuk 1407: }
1.159 albertel 1408: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1409: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1410: my @allkeys = split /,/,$allkeys;
1411: my $allow_print_points = 0;
1412: foreach my $partial_key (@allkeys) {
1.230 albertel 1413: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1414: if ($1 ne '0') {$allow_print_points=1;}
1415: }
1416: }
1.275 albertel 1417: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1418: if (defined($maxtries) && $maxtries < 0) {
1419: $allow_print_points=0;
1420: }
1.302 albertel 1421: if (lc($env{'course.'.$env{'request.course.id'}.
1422: '.disableexampointprint'}) eq 'yes') {
1423: $allow_print_points=0;
1424: }
1.222 sakharuk 1425: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1426: } elsif ($target eq 'web') {
1.356 www 1427: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1428: }
1429: }
1430: }
1431: } elsif ($target eq 'edit') {
1432: $result.=&Apache::edit::tag_start($target,$token);
1433: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1434: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1435: ' '.
1436: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1437: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1438: } elsif ($target eq 'modified') {
1439: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1440: $safeeval,'id','display');
1.159 albertel 1441: if ($constructtag) {
1.225 albertel 1442: #limiting ids to only letters numbers, and space
1.224 www 1443: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1444: $result = &Apache::edit::rebuild_tag($token);
1445: }
1446: }
1447: return $result;
1.11 albertel 1448: }
1449:
1450: sub end_part {
1.159 albertel 1451: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1452: &Apache::lonxml::debug("in end_part $target ");
1453: my $status=$Apache::inputtags::status['-1'];
1454: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1455: my $in_order_show=&ordered_show_check();
1.321 albertel 1456: my $result;
1457: if (!$Apache::lonxml::metamode) {
1458: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1459: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1460: }
1.312 albertel 1461: if ($target eq 'grade') {
1.249 albertel 1462: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1463: !$hidden && $in_order_show) {
1.311 foxr 1464: $result.=&Apache::inputtags::grade;
1.249 albertel 1465: } else {
1466: # move any submission data to .hidden
1467: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1468: }
1.283 albertel 1469: } elsif (($target eq 'web' || $target eq 'tex') &&
1470: !$hidden && $in_order_show) {
1.159 albertel 1471: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1472: $target);
1.212 albertel 1473: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1474: $gradestatus='';
1475: }
1.311 foxr 1476: $result.=$gradestatus;
1.265 sakharuk 1477: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1478: } elsif ($target eq 'edit') {
1.311 foxr 1479: $result.=&Apache::edit::end_table();
1.322 albertel 1480: } elsif ($target eq 'modified') {
1481: $result .= $token->[2];
1.159 albertel 1482: }
1483: pop @Apache::inputtags::status;
1484: $Apache::inputtags::part='';
1.295 albertel 1485: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1486: return $result;
1.11 albertel 1487: }
1.1 albertel 1488:
1.25 albertel 1489: sub start_preduedate {
1.326 albertel 1490: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1491: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1492: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1493: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1494: if (!$Apache::lonhomework::scantronmode &&
1495: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1496: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1497: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1498: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1499: }
1.24 albertel 1500: }
1.159 albertel 1501: return '';
1.24 albertel 1502: }
1503:
1.25 albertel 1504: sub end_preduedate {
1.159 albertel 1505: return '';
1.24 albertel 1506: }
1507:
1.369 foxr 1508: # In all the modes where <postanswerdate> text is
1509: # displayable, all we do is eat up the text between the start/stop
1510: # tags if the conditions are not right to display it.
1.25 albertel 1511: sub start_postanswerdate {
1.326 albertel 1512: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1513: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1514: &Apache::lonnet::allowed('pav',
1515: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1516: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1517: $target eq 'tex' ) {
1.300 albertel 1518: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1519: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1520: (($target eq 'tex') && !$pav)) {
1.326 albertel 1521: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1522: }
1523: }
1524: return '';
1.24 albertel 1525: }
1526:
1.25 albertel 1527: sub end_postanswerdate {
1.159 albertel 1528: return '';
1.24 albertel 1529: }
1530:
1.25 albertel 1531: sub start_notsolved {
1.326 albertel 1532: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1533: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1534: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1535: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1536: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1537: if ($gradestatus =~ /^correct/ &&
1538: &Apache::response::show_answer()) {
1.159 albertel 1539: &Apache::lonxml::debug("skipping");
1.326 albertel 1540: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1541: }
1.24 albertel 1542: }
1.159 albertel 1543: return '';
1.24 albertel 1544: }
1545:
1.25 albertel 1546: sub end_notsolved {
1.159 albertel 1547: return '';
1.24 albertel 1548: }
1549:
1550: sub start_solved {
1.326 albertel 1551: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1552: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1553: $target eq 'tex') {
1554: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1555: if ($gradestatus !~ /^correct/ ||
1556: !&Apache::response::show_answer()) {
1.326 albertel 1557: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1558: }
1.24 albertel 1559: }
1.159 albertel 1560: return '';
1.24 albertel 1561: }
1562:
1563: sub end_solved {
1.248 albertel 1564: return '';
1565: }
1566:
1567: sub start_problemtype {
1.326 albertel 1568: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1569: my $result;
1.339 albertel 1570: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1571: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1572: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1573: if (!defined($mode)) { $mode='show'; }
1574: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1575: my $found=0;
1576: foreach my $type (split(',',$for)) {
1577: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1578: }
1579: if ($mode eq 'show' && !$found) {
1.326 albertel 1580: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1581: }
1582: if ($mode eq 'hide' && $found) {
1.326 albertel 1583: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1584: }
1585: } elsif ($target eq 'edit') {
1586: $result .=&Apache::edit::tag_start($target,$token);
1587: $result.=&Apache::edit::select_arg('Mode:','mode',
1588: [['show','Show'],
1589: ['hide','Hide']]
1590: ,$token);
1591: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1592: [ ['exam','Exam/Quiz Problem'],
1593: ['survey','Survey'],
1594: ['problem','Homework Problem'] ]
1595: ,$token);
1596: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1597: } elsif ($target eq 'modified') {
1598: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1599: $safeeval,'mode','for');
1600: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1601: }
1602: return $result;
1603: }
1604:
1605: sub end_problemtype {
1.159 albertel 1606: return '';
1.24 albertel 1607: }
1.34 albertel 1608:
1609: sub start_startouttext {
1.159 albertel 1610: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1611: my @result=(''.'');
1612: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1613: return (@result);
1.34 albertel 1614: }
1.159 albertel 1615:
1.34 albertel 1616: sub end_startouttext {
1.326 albertel 1617: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1618: my $result='';
1619: my $text='';
1620:
1621: if ($target eq 'edit') {
1.326 albertel 1622: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1623: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1624: <td>".&mt('Delete:').
1.159 albertel 1625: &Apache::edit::deletelist($target,$token)
1626: ."</td>
1.42 albertel 1627: <td>".
1.159 albertel 1628: &Apache::edit::insertlist($target,$token).
1.362 albertel 1629: '</td><td align="right" valign="top">' .
1630: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1631: &Apache::edit::end_row().
1.362 albertel 1632: &Apache::edit::start_spanning_row()."\n".
1.255 www 1633: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1634: }
1635: if ($target eq 'modified') {
1.219 albertel 1636: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1637: }
1638: if ($target eq 'tex') {
1639: $result .= '\noindent ';
1640: }
1641: return $result;
1.34 albertel 1642: }
1.159 albertel 1643:
1.34 albertel 1644: sub start_endouttext {
1.159 albertel 1645: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1646: my $result='';
1647: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1648: if ($target eq "modified") {
1649: $result='<endouttext />'.
1.377 albertel 1650: &Apache::edit::handle_insertafter('startouttext');
1651: }
1.159 albertel 1652: return $result;
1.34 albertel 1653: }
1.159 albertel 1654:
1.34 albertel 1655: sub end_endouttext {
1.159 albertel 1656: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1657: my @result=('','');
1658: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1659: return (@result);
1.34 albertel 1660: }
1.159 albertel 1661:
1.45 albertel 1662: sub delete_startouttext {
1.326 albertel 1663: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1664: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1665: my $text=$$parser['-1']->get_text("/endouttext");
1666: my $ntoken=$$parser['-1']->get_token();
1667: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1668: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1669: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1670: # they did the last time round
1671: &Apache::lonxml::increasedepth($ntoken);
1672: &Apache::lonxml::decreasedepth($ntoken);
1673: return 1;
1.193 www 1674: }
1675:
1676: sub start_simpleeditbutton {
1677: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1678: my $result='';
1.284 albertel 1679: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1680: ($target eq 'web') &&
1.330 albertel 1681: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1682: my $url=$env{'request.noversionuri'};
1.193 www 1683: $url=~s/\?.*$//;
1.367 albertel 1684: my ($symb) = &Apache::lonnet::whichuser();
1.194 www 1685: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.356 www 1686: '<a href="'.$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 1687: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1688: }
1689: return $result;
1690: }
1691:
1692: sub end_simpleeditbutton {
1693: return '';
1.45 albertel 1694: }
1.34 albertel 1695:
1.1 albertel 1696: 1;
1697: __END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>