Annotation of loncom/homework/structuretags.pm, revision 1.375
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.375 ! albertel 4: # $Id: structuretags.pm,v 1.374 2007/02/24 01:44:14 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 />';
1.313 albertel 347: }
1.159 albertel 348: return $result;
1.48 albertel 349: }
350:
1.65 albertel 351: sub initialize_storage {
1.357 albertel 352: my ($given_symb) = @_;
1.353 albertel 353: undef(%Apache::lonhomework::results);
354: undef(%Apache::lonhomework::history);
1.357 albertel 355: my ($symb,$courseid,$domain,$name) =
1.367 albertel 356: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 357:
358: # anonymous users (CODEd exams) have no data
359: if ($name eq 'anonymous'
360: && !defined($domain)) {
361: return;
362: }
363:
1.333 albertel 364: if ($env{'request.state'} eq 'construct'
365: || $symb eq ''
366: || $Apache::lonhomework::type eq 'practice') {
367:
368: my $namespace = $symb || $env{'request.uri'};
369: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 370: ($env{'form.resetdata'} eq &mt('New Problem Variation')
371: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 372: $env{'form.newrandomization'} eq &mt('New Randomization')) {
373: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
374: &Apache::lonxml::debug("Attempt reset");
375: }
1.159 albertel 376: %Apache::lonhomework::history=
1.333 albertel 377: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 378: my ($temp)=keys %Apache::lonhomework::history ;
379: &Apache::lonxml::debug("Return message of $temp");
380: } else {
381: %Apache::lonhomework::history=
382: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
383: }
1.353 albertel 384:
1.159 albertel 385: #ignore error conditions
1.67 albertel 386: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 387: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 388: }
389:
390: # -------------------------------------------------------------finalize_storage
391: # Stores away the result has to a student's environment
392: # checks form.grade_ for specific values, other wises stores
393: # to the running users environment
1.285 raeburn 394: # Will increment totals for attempts, students, and corrects
395: # if running user has student role.
1.65 albertel 396: sub finalize_storage {
1.357 albertel 397: my ($given_symb) = @_;
1.159 albertel 398: my $result;
1.289 albertel 399: if (%Apache::lonhomework::results) {
1.323 albertel 400: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
401: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 402: my ($symb,$courseid,$domain,$name) =
1.367 albertel 403: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 404: if ($env{'request.state'} eq 'construct'
405: || $symb eq ''
406: || $Apache::lonhomework::type eq 'practice') {
407: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 408: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 409: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 410: $namespace,'',$domain,$name);
1.159 albertel 411: &Apache::lonxml::debug('Construct Store return message:'.$result);
412: } else {
413: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
414: $symb,$courseid,$domain,$name);
415: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 416: if ($env{'request.role'} =~/^st/) {
417: &store_aggregates($symb,$courseid);
418: }
1.159 albertel 419: }
1.323 albertel 420: } else {
421: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 422: }
1.159 albertel 423: return $result;
1.65 albertel 424: }
1.289 albertel 425: use Data::Dumper;
1.65 albertel 426:
1.285 raeburn 427: # -------------------------------------------------------------store_aggregates
428: # Sends hash of values to be incremented in nohist_resourcetracker.db
429: # for the course. Increments total number of attempts, unique students
430: # and corrects for each part for an instance of a problem, as appropriate.
431: sub store_aggregates {
432: my ($symb,$courseid) = @_;
1.286 albertel 433: my %aggregate;
434: my @parts;
1.288 albertel 435: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
436: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 437: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 438: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 439: push(@parts, $1);
1.285 raeburn 440: }
441: }
1.286 albertel 442: foreach my $part (@parts) {
443: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
444: eq 'APPROX_ANS' ||
445: $Apache::lonhomework::results{'resource.'.$part.'.award'}
446: eq 'EXACT_ANS') {
1.287 albertel 447: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 448: }
1.286 albertel 449: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 450: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 451: } else {
1.293 albertel 452: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 453: if ($last_reset) {
1.293 albertel 454: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 455: $aggregate{$symb."\0".$part."\0users"} = 1;
456: }
457: }
1.285 raeburn 458: }
1.287 albertel 459: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 460: }
1.292 raeburn 461: if (keys (%aggregate) > 0) {
1.289 albertel 462: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 463: $cdomain,$cname);
464: }
465: }
1.289 albertel 466:
1.65 albertel 467: sub checkout_msg {
1.211 albertel 468: my %lt=&Apache::lonlocal::texthash(
469: 'resource'=>'The resource needs to be checked out',
470: '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.',
471: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
472: 'checkout'=>'Check out Exam for Viewing',
473: 'checkout?'=>'Check out Exam?');
1.352 albertel 474: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 475: return (<<ENDCHECKOUT);
1.211 albertel 476: <h2>$lt{'resource'}</h2>
477: <p>$lt{'id_expln'}</p>
478: <font color="red">
479: <p>$lt{'warning'}</p>
1.91 albertel 480: </font>
1.352 albertel 481: <form name="checkout" method="POST" action="$uri">
1.91 albertel 482: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 483: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 484: </form>
485: ENDCHECKOUT
486: }
487:
1.252 albertel 488: sub firstaccess_msg {
1.253 albertel 489: my ($time,$symb)=@_;
490: my ($map)=&Apache::lonnet::decode_symb($symb);
491: my $foldertitle=&Apache::lonnet::gettitle($map);
492: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.352 albertel 493: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.252 albertel 494: return (<<ENDCHECKOUT);
1.253 albertel 495: <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 496: <form name="markaccess" method="POST" action="$uri">
1.252 albertel 497: <input type="hidden" name="markaccess" value="yes" />
498: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
499: </form>
500: ENDCHECKOUT
501: }
502:
1.204 albertel 503: sub init_problem_globals {
504: my ($type)=@_;
505: #initialize globals
1.308 foxr 506: # For problems, we start out in part 0 (outside a <part> tag).
507: # and part 0 is used to describe the main body of the <problem>
508: #
1.204 albertel 509: if ($type eq 'problem') {
510: $Apache::inputtags::part='0';
511: @Apache::inputtags::partlist=('0');
1.266 albertel 512: $Apache::lonhomework::problemstatus=&get_problem_status('0');
513: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 514:
1.266 albertel 515: } elsif ($type eq 'library') {
1.204 albertel 516: $Apache::inputtags::part='';
517: @Apache::inputtags::partlist=();
518: $Apache::lonhomework::problemstatus='';
1.266 albertel 519: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 520:
1.304 albertel 521: } elsif ($type eq 'Task') {
522: $Apache::inputtags::part='0';
523: @Apache::inputtags::partlist=('0');
524: $Apache::lonhomework::problemstatus='';
525: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 526: }
527: @Apache::inputtags::responselist = ();
528: @Apache::inputtags::importlist = ();
529: @Apache::inputtags::previous=();
530: @Apache::inputtags::previous_version=();
531: $Apache::structuretags::printanswer='No';
532: @Apache::structuretags::whileconds=();
533: @Apache::structuretags::whilebody=();
534: @Apache::structuretags::whileline=();
535: $Apache::lonhomework::scantronmode=0;
536: undef($Apache::lonhomework::name);
1.358 albertel 537: undef($Apache::lonhomework::default_type);
538: undef($Apache::lonhomework::type);
1.204 albertel 539: }
540:
541: sub reset_problem_globals {
542: my ($type)=@_;
543: undef(%Apache::lonhomework::history);
544: undef(%Apache::lonhomework::results);
545: undef($Apache::inputtags::part);
1.208 albertel 546: #don't undef this, lonhomework.pm takes care of this, we use this to
547: #detect if we try to do 2 problems in one file
548: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 549: undef($Apache::lonhomework::name);
1.358 albertel 550: undef($Apache::lonhomework::default_type);
551: undef($Apache::lonhomework::type);
552: undef($Apache::lonhomework::scantronmode);
553: undef($Apache::lonhomework::problemstatus);
554: undef($Apache::lonhomework::ignore_response_errors);
1.204 albertel 555: }
556:
1.241 albertel 557: sub set_problem_state {
1.240 albertel 558: my ($part)=@_;
1.284 albertel 559: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 560: $Apache::lonhomework::history{"resource.$part.solved"}=
561: 'correct_by_student';
562: }
563: }
564:
1.241 albertel 565: sub get_problem_status {
566: my ($part)=@_;
1.267 albertel 567: my $problem_status;
1.284 albertel 568: if ($env{'request.state'} eq 'construct' &&
569: defined($env{'form.problemstatus'})) {
570: $problem_status=$env{'form.problemstatus'};
1.267 albertel 571: } else {
572: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
573: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 574: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 575: }
576: return $problem_status;
577: }
578:
1.9 albertel 579: sub start_problem {
1.326 albertel 580: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 581:
1.311 foxr 582: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 583: if (!$Apache::lonxml::metamode) {
584: &Apache::lonxml::startredirection();
585: }
1.311 foxr 586:
1.308 foxr 587: # Problems don't nest and we don't allow more than one <problem> in
588: # a .problem file.
589: #
1.184 albertel 590: if ( $Apache::inputtags::part ne '' ||
591: $Apache::lonhomework::parsing_a_problem) {
592: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 593: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 594: return '';
595: }
1.184 albertel 596:
597: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 598: &init_problem_globals('problem');
1.166 albertel 599:
1.284 albertel 600: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 601: $Apache::lonhomework::scantronmode=1;
602: }
1.161 albertel 603:
1.159 albertel 604: if ($target ne 'analyze') {
1.284 albertel 605: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 606: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 607: if (($env{'request.state'} eq 'construct') &&
608: defined($env{'form.problemtype'})) {
609: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 610: }
1.332 albertel 611: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 612: }
1.164 albertel 613: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 614: my $uri=$env{'request.uri'};
1.159 albertel 615: if ($uri=~/\.(\w+)$/) {
616: $Apache::lonhomework::type=$1;
617: &Apache::lonxml::debug("Using type of $1");
618: } else {
619: $Apache::lonhomework::type='problem';
620: &Apache::lonxml::debug("Using default type, problem, :$uri:");
621: }
1.87 albertel 622: }
1.301 albertel 623: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 624:
1.363 albertel 625: &initialize_storage();
1.366 albertel 626: if ($target eq 'web') {
627: &Apache::lonxml::debug(" grading history ");
628: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
629: }
1.363 albertel 630:
1.159 albertel 631: #added vars to the scripting enviroment
1.213 albertel 632: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 633: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 634: &Apache::run::run($expression,$safeeval);
1.159 albertel 635: my $status;
636: my $accessmsg;
637:
1.343 albertel 638: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 639: my ($result,$form_tag_start);
1.354 albertel 640: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
641: || $target eq 'edit') {
1.350 albertel 642: ($result,$form_tag_start) =
643: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
644: $name);
645: }
646:
1.284 albertel 647: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 648:
649: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
650: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
651: $target eq 'tex') {
652: #handle exam checkout
653: if ($Apache::lonhomework::type eq 'exam') {
654: my $token=
655: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 656: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 657: $token=&Apache::lonxml::maketoken();
658: $Apache::lonhomework::history{"resource.0.outtoken"}=
659: $token;
660: }
1.343 albertel 661: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 662: }
1.284 albertel 663: if ($env{'form.markaccess'}) {
1.252 albertel 664: &Apache::lonnet::set_first_access('map');
665: }
1.159 albertel 666: #handle rand seed in construction space
667: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 668: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 669: if ($env{'request.state'} ne "construct" &&
670: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 671: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
672: $rndseed.'" />'.
673: '<input type="submit" name="resetdata"
1.334 albertel 674: value="'.&mt('New Problem Variation').'" />';
675: if (exists($env{'form.username'})) {
676: $form_tag_start.=
1.164 albertel 677: '<input type="hidden" name="username"
1.284 albertel 678: value="'.$env{'form.username'}.'" />';
1.334 albertel 679: }
1.333 albertel 680: if ($env{'request.role.adv'}) {
1.267 albertel 681: $form_tag_start.=
1.300 albertel 682: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 683: if (defined($env{'form.showallfoils'})) {
1.267 albertel 684: $form_tag_start.='checked="on"';
685: }
1.300 albertel 686: $form_tag_start.= ' />'.&mt(' Show All Foils').
687: '</label>';
1.267 albertel 688: }
689: $form_tag_start.='<hr />';
1.162 albertel 690: }
1.324 albertel 691:
692: ($status,$accessmsg,my $slot_name,my $slot) =
693: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 694: push (@Apache::inputtags::status,$status);
1.324 albertel 695:
1.159 albertel 696: my $expression='$external::datestatus="'.$status.'";';
697: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
698: &Apache::run::run($expression,$safeeval);
699: &Apache::lonxml::debug("Got $status");
1.324 albertel 700:
1.159 albertel 701: if (( $status eq 'CLOSED' ) ||
702: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 703: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 704: ( $status eq 'BANNED') ||
1.216 albertel 705: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 706: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 707: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 708: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
709: $style);
1.159 albertel 710: if ( $target eq "web" ) {
1.343 albertel 711: my $msg;
1.159 albertel 712: if ($status eq 'UNAVAILABLE') {
1.245 albertel 713: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 714: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 715: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 716: }
1.216 albertel 717: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 718: $msg.='The problem '.$accessmsg;
719: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 720: $msg.=&checkout_msg();
1.252 albertel 721: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 722: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 723: } elsif ($status eq 'NOT_IN_A_SLOT') {
724: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 725: }
726: $result.=$msg.'<br />';
727: } elsif ($target eq 'tex') {
1.332 albertel 728: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
729: : '\begin{minipage}{\textwidth}';
730: $result.='\begin{document}\noindent \vskip 1 mm '.
731: $startminipage.'\vskip 0 mm';
1.159 albertel 732: if ($status eq 'UNAVAILABLE') {
1.211 albertel 733: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 734: } else {
1.211 albertel 735: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 736: }
737: }
1.324 albertel 738: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 739: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
740: $style);
1.324 albertel 741: if ($target eq 'web') {
1.375 ! albertel 742: $result .=
! 743: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 744: } elsif ($target eq 'grade') {
745: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
746: 'problem');
747: }
1.159 albertel 748: } elsif ($target eq 'web') {
1.360 albertel 749: if ($status eq 'CAN_ANSWER'
750: && $slot_name ne ''
751: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
752: # unproctored slot access, self checkin
753: &Apache::bridgetask::check_in('problem',undef,undef,
754: $slot_name);
755: }
1.368 albertel 756: $result.="\n $form_tag_start \t".
1.227 albertel 757: '<input type="hidden" name="submitted" value="yes" />';
758: # create a page header and exit
1.284 albertel 759: if ($env{'request.state'} eq "construct") {
760: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 761: }
762: # if we are viewing someone else preserve that info
1.284 albertel 763: if (defined $env{'form.grade_symb'}) {
1.227 albertel 764: foreach my $field ('symb','courseid','domain','username') {
765: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 766: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 767: }
768: }
769: } elsif ($target eq 'tex') {
1.319 foxr 770: $result .= 'INSERTTEXFRONTMATTERHERE';
771:
1.99 sakharuk 772: }
1.159 albertel 773: } elsif ($target eq 'edit') {
1.343 albertel 774: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 775: $Apache::lonxml::warnings_error_header=
776: &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 777: my $temp=&Apache::edit::insertlist($target,$token);
778: $result.=$temp;
779: } elsif ($target eq 'modified') {
780: $result=$token->[4];
781: $result.=&Apache::edit::handle_insert();
782: } else {
783: # page_start returned a starting result, delete it if we don't need it
784: $result = '';
1.99 sakharuk 785: }
1.159 albertel 786: return $result;
1.9 albertel 787: }
788:
789: sub end_problem {
1.159 albertel 790: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 791: my $result;
1.310 foxr 792:
1.321 albertel 793: if (!$Apache::lonxml::metamode) {
794: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 795: $Apache::lonxml::post_evaluate=0;
1.321 albertel 796: }
1.319 foxr 797:
798: if ($target eq 'tex') {
1.321 albertel 799: # Figure out the front matter and replace the
800: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
801: # this in end_problem because whether or not we display due
802: # dates depends on whether due dates have already been
803: # displayed in the problem parts.
804:
1.319 foxr 805: my $frontmatter = '';
806: my $startminipage = '';
807: if (not $env{'form.problem_split'}=~/yes/) {
808: $startminipage = '\begin{minipage}{\textwidth}';
809: }
810: my $id = $Apache::inputtags::part;
811: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
812: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
813: my @packages = split /,/,$packages;
814: my $allow_print_points = 0;
815: foreach my $partial_key (@packages) {
816: if ($partial_key=~m/^part_0$/) {
817: $allow_print_points=1;
818: }
819: }
820: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
821: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
822: if (lc($env{'course.'.$env{'request.course.id'}.
823: '.disableexampointprint'}) eq 'yes') {
824: $allow_print_points=0;
825: }
826: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
827: 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 ';
828: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
829: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
830:
831: # Figure out what the due date is and if we need to print
832: # it in the problem header. We have been logging the
833: # last due date written to file.
834:
835: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
836: my $duedate = POSIX::strftime("%c",localtime($duetime));
837: my $temp_file;
838: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
839:
840: # Figure out what the last printed due date is or set it
841: # to the epoch if no duedates have been printed.
842:
843: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
844: if (-e $filename) {
845: $temp_file = Apache::File->new($filename);
846: my @due_file = <$temp_file>;
847: $due_file_content = $due_file[$#due_file];
848: chomp $due_file_content;
849: }
850:
851: # We display the due date iff it is not the same as the last
852: # duedate in problem header ($due_file_content), and
853: # none of our parts displayed a duedate.
854: #
855: my $parts_with_displayduedate;
856: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
857: $parts_with_displayduedate =
858: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
859: } else {
860: $parts_with_displayduedate = 0;
861: }
862: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
863: $temp_file = Apache::File->new('>'.$filename);
864: print $temp_file "$duetime\n";
865: if (not $env{'request.symb'} =~ m/\.page_/) {
866: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
867: $frontmatter .= $begin_doc.
868: '\textit{Due date: '.$duedate.'} '.$toc_line;
869: } else {
870: $frontmatter.= $begin_doc.$toc_line;
871: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
872: }
873: } else {
874: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
875: }
876: } else {
877: if (not $env{'request.symb'} =~ m/\.page_/) {
878: $frontmatter .= $begin_doc.$toc_line;
879: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
880: } else {
881: $frontmatter .= '\vskip 1mm \\\\\\\\';
882: }
883: }
884: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
885: }
886:
1.159 albertel 887: my $status=$Apache::inputtags::status['-1'];
888: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
889: $target eq 'tex') {
1.249 albertel 890: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 891: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 892: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
893: &Apache::inputtags::grade;
1.324 albertel 894: } elsif ($status eq 'NEEDS_CHECKIN') {
895: # no need to grade, and don't want to hide data
1.249 albertel 896: } else {
897: # move any submission data to .hidden
898: &Apache::inputtags::hidealldata($Apache::inputtags::part);
899: }
1.159 albertel 900: } elsif ( ($target eq 'web' || $target eq 'tex') &&
901: $Apache::inputtags::part eq '0' &&
1.252 albertel 902: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 903: # if part is zero, no <part>s existed, so we need show the current
904: # grading status
905: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
906: $result.= $gradestatus;
907: }
908: if (
1.284 albertel 909: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 910: ($target eq 'answer') || ($target eq 'tex')
911: ) {
1.227 albertel 912: if ($target ne 'tex' &&
1.284 albertel 913: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 914: $result.="</form>";
1.348 albertel 915: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 916: }
917: if ($target eq 'web') {
1.346 albertel 918: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 919: } elsif ($target eq 'tex') {
1.178 sakharuk 920: my $endminipage = '';
1.284 albertel 921: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 922: $endminipage = '\end{minipage}';
923: }
1.284 albertel 924: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 925: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 926: } else {
1.262 sakharuk 927: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 928: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 929: $result .= $endminipage.'\end{document} ';
930: } else {
931: $result .= '';
932: }
1.159 albertel 933: }
934: }
935: }
936: if ($target eq 'grade') {
937: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
938: &finalize_storage();
939: }
1.284 albertel 940: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
941: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 942: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 943: # normally we get it from above, but in CSTR
1.172 albertel 944: # we always show answer mode too.
1.159 albertel 945: }
946: } elsif ($target eq 'meta') {
947: if ($Apache::inputtags::part eq '0') {
1.179 albertel 948: @Apache::inputtags::response=();
1.159 albertel 949: $result=&Apache::response::mandatory_part_meta;
950: }
1.215 albertel 951: $result.=&Apache::response::meta_part_order();
1.258 albertel 952: $result.=&Apache::response::meta_response_order();
1.159 albertel 953: } elsif ($target eq 'edit') {
954: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 955: $result .= &problem_edit_footer();
1.320 albertel 956: } elsif ($target eq 'modified') {
957: $result .= $token->[2];
958: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 959: }
1.155 albertel 960:
1.284 albertel 961: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 962: &Apache::inputtags::check_for_duplicate_ids();
963: }
1.204 albertel 964:
965: &reset_problem_globals('problem');
1.159 albertel 966:
967: return $result;
1.48 albertel 968: }
969:
1.108 albertel 970:
1.48 albertel 971: sub start_library {
1.159 albertel 972: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 973: my ($result,$form_tag_start);
1.371 albertel 974: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 975: &init_problem_globals('library');
976: $Apache::lonhomework::type='problem';
977: }
1.159 albertel 978: if ($target eq 'edit') {
1.343 albertel 979: ($result,$form_tag_start)=
980: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
981: 'Edit');
982: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 983: my $temp=&Apache::edit::insertlist($target,$token);
984: $result.=$temp;
985: } elsif ($target eq 'modified') {
986: $result=$token->[4];
987: $result.=&Apache::edit::handle_insert();
1.340 albertel 988: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 989: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 990: && $env{'request.state'} eq "construct" ) {
1.159 albertel 991: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 992: ($result,$form_tag_start)=
993: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
994: $name);
1.159 albertel 995: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 996: $result.=" \n $form_tag_start".
1.159 albertel 997: '<input type="hidden" name="submitted" value="yes" />';
998: $result.=&problem_web_to_edit_header($rndseed);
999: }
1000: return $result;
1.48 albertel 1001: }
1002:
1003: sub end_library {
1.159 albertel 1004: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1005: my $result='';
1006: if ($target eq 'edit') {
1007: $result=&problem_edit_footer();
1.371 albertel 1008: } elsif ($target eq 'web'
1009: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1010: && $env{'request.state'} eq "construct") {
1.349 albertel 1011: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1012: }
1.371 albertel 1013: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1014: &reset_problem_globals('library');
1015: }
1.159 albertel 1016: return $result;
1.197 www 1017: }
1018:
1019: sub start_definetag {
1.326 albertel 1020: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1021:
1022: my $result;
1023:
1024: my $name = $token->[2]->{'name'};
1.326 albertel 1025: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 1026: if ($name=~/^\//) {
1027: $result=
1028: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
1029: } else {
1030: $result=
1031: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
1032: }
1033: $skip=~s/\</\<\;/gs;
1034: $skip=~s/\>/\>\;/gs;
1035: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1036: return $result;
1037: }
1038:
1039: sub end_definetag {
1040: return '';
1.1 albertel 1041: }
1042:
1043: sub start_block {
1.201 albertel 1044: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1045:
1046: my $result;
1.1 albertel 1047:
1.339 albertel 1048: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1049: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1050: my $code = $token->[2]->{'condition'};
1.201 albertel 1051: if (defined($code)) {
1.137 albertel 1052: if (!$Apache::lonxml::default_homework_loaded) {
1053: &Apache::lonxml::default_homework_load($safeeval);
1054: }
1.131 albertel 1055: $result = &Apache::run::run($code,$safeeval);
1056: &Apache::lonxml::debug("block :$code: returned :$result:");
1057: } else {
1058: $result='1';
1059: }
1060: if ( ! $result ) {
1.201 albertel 1061: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1062: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1063: }
1064: $result='';
1065: } elsif ($target eq 'edit') {
1066: $result .=&Apache::edit::tag_start($target,$token);
1067: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1068: $token,40);
1069: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1070: } elsif ($target eq 'modified') {
1071: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1072: $safeeval,'condition');
1073: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1074: }
1.131 albertel 1075: return $result;
1.1 albertel 1076: }
1077:
1078: sub end_block {
1.167 www 1079: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1080: my $result;
1081: if ($target eq "edit") {
1082: $result.= &Apache::edit::tag_end($target,$token,'');
1083: }
1084: return $result;
1085: }
1086:
1087: sub start_languageblock {
1.201 albertel 1088: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1089:
1090: my $result;
1091:
1.339 albertel 1092: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1093: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1094: my $include = $token->[2]->{'include'};
1095: my $exclude = $token->[2]->{'exclude'};
1096: my %languages=&Apache::loncommon::display_languages();
1097: $result='1';
1098: if ($include) {
1099: $result='';
1100: foreach (split(/\,/,$include)) {
1101: if ($languages{$_}) { $result='1'; }
1102: }
1103: }
1104: if ($exclude) {
1105: foreach (split(/\,/,$exclude)) {
1106: if ($languages{$_}) { $result='0'; }
1107: }
1108: }
1109: if ( ! $result ) {
1110: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1111: $style);
1112: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1113: }
1114: $result='';
1.167 www 1115: } elsif ($target eq 'edit') {
1116: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1117: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1118: $token,40);
1.211 albertel 1119: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1120: $token,40);
1121: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1122: } elsif ($target eq 'modified') {
1123: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1124: $safeeval,'include',
1125: 'exclude');
1.167 www 1126: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1127: }
1128: return $result;
1129: }
1130:
1131: sub end_languageblock {
1.170 www 1132: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1133: my $result;
1.201 albertel 1134: if ($target eq "edit") {
1.170 www 1135: $result.= &Apache::edit::tag_end($target,$token,'');
1136: }
1137: return $result;
1138: }
1139:
1140: sub start_instructorcomment {
1.201 albertel 1141: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1142:
1143: my $result;
1144:
1.339 albertel 1145: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1146: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1147: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1148: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1149: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1150: $parser,$style);
1.170 www 1151: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1152: }
1153: $result='';
1154: } elsif ($target eq 'edit') {
1155: $result .=&Apache::edit::tag_start($target,$token);
1156: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1157: }
1158: return $result;
1159: }
1160:
1161: sub end_instructorcomment {
1.159 albertel 1162: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1163: my $result;
1164: if ($target eq "edit") {
1165: $result.= &Apache::edit::tag_end($target,$token,'');
1166: }
1167: return $result;
1.4 tsai 1168: }
1169:
1170: sub start_while {
1.326 albertel 1171: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1172:
1.160 albertel 1173: my $result;
1.339 albertel 1174: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1175: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1176: my $code = $token->[2]->{'condition'};
1.4 tsai 1177:
1.160 albertel 1178: push( @Apache::structuretags::whileconds, $code);
1179: if (!$Apache::lonxml::default_homework_loaded) {
1180: &Apache::lonxml::default_homework_load($safeeval);
1181: }
1182: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1183: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1184: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1185: push( @Apache::structuretags::whileline, $token->[5]);
1186: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1187: if ( $result ) {
1188: &Apache::lonxml::newparser($parser,\$bodytext);
1189: }
1190: } elsif ($target eq 'edit') {
1191: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1192: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1193: $token,40);
1194: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1195: } elsif ($target eq 'modified') {
1196: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1197: $safeeval,'condition');
1198: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1199: }
1.160 albertel 1200: return $result;
1.4 tsai 1201: }
1202:
1203: sub end_while {
1.159 albertel 1204: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1205: my $result;
1206:
1.339 albertel 1207: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1208: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1209: my $code = pop(@Apache::structuretags::whileconds);
1210: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1211: my $line = pop(@Apache::structuretags::whileline);
1212: my $return = &Apache::run::run($code,$safeeval);
1213: my $starttime=time;
1214: my $error=0;
1215: while ($return) {
1216: if (time-$starttime >
1217: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1218: #$return = 0; $error=1; next;
1.161 albertel 1219: }
1220: $result.=&Apache::scripttag::xmlparse($bodytext);
1221: $return = &Apache::run::run($code,$safeeval);
1222: }
1223: if ($error) {
1.270 albertel 1224: &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 1225: }
1226: } elsif ($target eq "edit") {
1227: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1228: }
1.160 albertel 1229: return $result;
1.1 albertel 1230: }
1.6 tsai 1231:
1.160 albertel 1232: # <randomlist show="1">
1.6 tsai 1233: # <tag1>..</tag1>
1234: # <tag2>..</tag2>
1235: # <tag3>..</tag3>
1.160 albertel 1236: # ...
1.6 tsai 1237: # </randomlist>
1238: sub start_randomlist {
1.326 albertel 1239: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1240: my $result;
1.339 albertel 1241: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1242: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1243: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1244: my $b_parser= HTML::LCParser->new(\$body);
1245: $b_parser->xml_mode(1);
1246: $b_parser->marked_sections(1);
1.159 albertel 1247: my $b_tok;
1248: my @randomlist;
1249: my $list_item;
1250: while($b_tok = $b_parser->get_token() ) {
1251: if($b_tok->[0] eq 'S') { # start tag
1252: # get content of the tag until matching end tag
1253: # get all text upto the matching tag
1254: # and push the content into @randomlist
1255: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1256: $b_parser);
1257: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1258: push(@randomlist,$list_item);
1259: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1260: # $list_item</b>";
1261: }
1262: if($b_tok->[0] eq 'T') { # text
1263: # what to do with text in between tags?
1264: # print "<b>TEXT $b_tok->[1]</b><br />";
1265: }
1266: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1267: # print "<b>END-TAG $b_tok->[1]</b><br />";
1268: # }
1269: }
1.303 albertel 1270: if (@randomlist) {
1271: my @idx_arr = (0 .. $#randomlist);
1272: &Apache::structuretags::shuffle(\@idx_arr);
1273: my $bodytext = '';
1274: my $show=$#randomlist;
1275: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1276: $showarg--;
1277: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1278: for(0 .. $show) {
1279: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1280: }
1281: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1282: }
1283: } elsif ($target eq 'edit' ) {
1284: $result .=&Apache::edit::tag_start($target,$token);
1285: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1286: $token,5);
1287: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1288: } elsif ($target eq 'modified' ) {
1289: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1290: $safeeval,'show');
1291: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1292: }
1293: return $result;
1.7 tsai 1294: }
1295:
1296: sub shuffle {
1297: my $a=shift;
1298: my $i;
1.303 albertel 1299: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1300: &Apache::response::pushrandomnumber();
1.159 albertel 1301: for($i=@$a;--$i;) {
1302: my $j=int(&Math::Random::random_uniform() * ($i+1));
1303: next if $i == $j;
1304: @$a[$i,$j] = @$a[$j,$i];
1305: }
1.251 albertel 1306: &Apache::response::poprandomnumber();
1.7 tsai 1307: }
1.6 tsai 1308: }
1309:
1310: sub end_randomlist {
1.159 albertel 1311: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1312: my $result;
1313: if ($target eq 'edit' ) {
1314: $result=&Apache::edit::tag_end($target,$token,
1315: 'End Randomly Parsed Block');
1316: }
1317: return $result;
1.6 tsai 1318: }
1319:
1.283 albertel 1320: sub ordered_show_check {
1321: my $last_part=$Apache::inputtags::partlist[-2];
1322: my $in_order=
1323: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1324: my $in_order_show=1;
1325: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1326: $in_order_show=&Apache::response::check_status($last_part);
1327: }
1328: return $in_order_show;
1329: }
1330:
1.11 albertel 1331: sub start_part {
1.326 albertel 1332: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1333: if (!$Apache::lonxml::metamode) {
1334: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1335: # duedates.
1336: }
1.159 albertel 1337: my $result='';
1338: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1339: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1340: $Apache::inputtags::part=$id;
1.177 albertel 1341: push(@Apache::inputtags::partlist,$id);
1342: @Apache::inputtags::response=();
1.159 albertel 1343: @Apache::inputtags::previous=();
1344: @Apache::inputtags::previous_version=();
1.241 albertel 1345: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1346: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1347: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1348: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1349: my $in_order_show=&ordered_show_check();
1.214 albertel 1350: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1351: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1352: &Apache::run::run($expression,$safeeval);
1.159 albertel 1353:
1354: if ($target eq 'meta') {
1.224 www 1355: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1356: return &Apache::response::mandatory_part_meta.
1357: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1358: } elsif ($target eq 'web' || $target eq 'grade' ||
1359: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1360: if ($hidden || !$in_order_show) {
1.326 albertel 1361: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1362: } else {
1363: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1364: push (@Apache::inputtags::status,$status);
1365: my $expression='$external::datestatus="'.$status.'";';
1366: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1367: &Apache::run::run($expression,$safeeval);
1.284 albertel 1368: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1369: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1370: }
1.216 albertel 1371: if (( $status eq 'CLOSED' ) ||
1372: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1373: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1374: ( $status eq 'BANNED') ||
1375: ( $status eq 'UNAVAILABLE') ||
1376: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1377: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1378: $style);
1.159 albertel 1379: if ( $target eq "web" ) {
1.211 albertel 1380: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1381: } elsif ( $target eq 'tex' ) {
1.284 albertel 1382: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1383: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1384: } else {
1.211 albertel 1385: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1386: }
1.159 albertel 1387: }
1388: } else {
1389: if ($target eq 'tex') {
1.284 albertel 1390: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1391: if ($$tagstack[-2] eq 'td') {
1392: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1393: } else {
1394: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1395: }
1.195 sakharuk 1396: }
1.159 albertel 1397: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1398: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1399: my @allkeys = split /,/,$allkeys;
1400: my $allow_print_points = 0;
1401: foreach my $partial_key (@allkeys) {
1.230 albertel 1402: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1403: if ($1 ne '0') {$allow_print_points=1;}
1404: }
1405: }
1.275 albertel 1406: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1407: if (defined($maxtries) && $maxtries < 0) {
1408: $allow_print_points=0;
1409: }
1.302 albertel 1410: if (lc($env{'course.'.$env{'request.course.id'}.
1411: '.disableexampointprint'}) eq 'yes') {
1412: $allow_print_points=0;
1413: }
1.222 sakharuk 1414: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1415: } elsif ($target eq 'web') {
1.356 www 1416: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1417: }
1418: }
1419: }
1420: } elsif ($target eq 'edit') {
1421: $result.=&Apache::edit::tag_start($target,$token);
1422: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1423: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1424: ' '.
1425: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1426: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1427: } elsif ($target eq 'modified') {
1428: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1429: $safeeval,'id','display');
1.159 albertel 1430: if ($constructtag) {
1.225 albertel 1431: #limiting ids to only letters numbers, and space
1.224 www 1432: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1433: $result = &Apache::edit::rebuild_tag($token);
1434: $result.=&Apache::edit::handle_insert();
1435: }
1436: }
1437: return $result;
1.11 albertel 1438: }
1439:
1440: sub end_part {
1.159 albertel 1441: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1442: &Apache::lonxml::debug("in end_part $target ");
1443: my $status=$Apache::inputtags::status['-1'];
1444: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1445: my $in_order_show=&ordered_show_check();
1.321 albertel 1446: my $result;
1447: if (!$Apache::lonxml::metamode) {
1448: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1449: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1450: }
1.312 albertel 1451: if ($target eq 'grade') {
1.249 albertel 1452: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1453: !$hidden && $in_order_show) {
1.311 foxr 1454: $result.=&Apache::inputtags::grade;
1.249 albertel 1455: } else {
1456: # move any submission data to .hidden
1457: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1458: }
1.283 albertel 1459: } elsif (($target eq 'web' || $target eq 'tex') &&
1460: !$hidden && $in_order_show) {
1.159 albertel 1461: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1462: $target);
1.212 albertel 1463: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1464: $gradestatus='';
1465: }
1.311 foxr 1466: $result.=$gradestatus;
1.265 sakharuk 1467: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1468: } elsif ($target eq 'edit') {
1.311 foxr 1469: $result.=&Apache::edit::end_table();
1.322 albertel 1470: } elsif ($target eq 'modified') {
1471: $result .= $token->[2];
1472: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 1473: }
1474: pop @Apache::inputtags::status;
1475: $Apache::inputtags::part='';
1.295 albertel 1476: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1477: return $result;
1.11 albertel 1478: }
1.1 albertel 1479:
1.25 albertel 1480: sub start_preduedate {
1.326 albertel 1481: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1482: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1483: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1484: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1485: if (!$Apache::lonhomework::scantronmode &&
1486: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1487: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1488: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1489: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1490: }
1.24 albertel 1491: }
1.159 albertel 1492: return '';
1.24 albertel 1493: }
1494:
1.25 albertel 1495: sub end_preduedate {
1.159 albertel 1496: return '';
1.24 albertel 1497: }
1498:
1.369 foxr 1499: # In all the modes where <postanswerdate> text is
1500: # displayable, all we do is eat up the text between the start/stop
1501: # tags if the conditions are not right to display it.
1.25 albertel 1502: sub start_postanswerdate {
1.326 albertel 1503: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1504: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1505: &Apache::lonnet::allowed('pav',
1506: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1507: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1508: $target eq 'tex' ) {
1.300 albertel 1509: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1510: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1511: (($target eq 'tex') && !$pav)) {
1.326 albertel 1512: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1513: }
1514: }
1515: return '';
1.24 albertel 1516: }
1517:
1.25 albertel 1518: sub end_postanswerdate {
1.159 albertel 1519: return '';
1.24 albertel 1520: }
1521:
1.25 albertel 1522: sub start_notsolved {
1.326 albertel 1523: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1524: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1525: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1526: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1527: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1528: if ($gradestatus =~ /^correct/ &&
1529: &Apache::response::show_answer()) {
1.159 albertel 1530: &Apache::lonxml::debug("skipping");
1.326 albertel 1531: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1532: }
1.24 albertel 1533: }
1.159 albertel 1534: return '';
1.24 albertel 1535: }
1536:
1.25 albertel 1537: sub end_notsolved {
1.159 albertel 1538: return '';
1.24 albertel 1539: }
1540:
1541: sub start_solved {
1.326 albertel 1542: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1543: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1544: $target eq 'tex') {
1545: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1546: if ($gradestatus !~ /^correct/ ||
1547: !&Apache::response::show_answer()) {
1.326 albertel 1548: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1549: }
1.24 albertel 1550: }
1.159 albertel 1551: return '';
1.24 albertel 1552: }
1553:
1554: sub end_solved {
1.248 albertel 1555: return '';
1556: }
1557:
1558: sub start_problemtype {
1.326 albertel 1559: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1560: my $result;
1.339 albertel 1561: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1562: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1563: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1564: if (!defined($mode)) { $mode='show'; }
1565: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1566: my $found=0;
1567: foreach my $type (split(',',$for)) {
1568: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1569: }
1570: if ($mode eq 'show' && !$found) {
1.326 albertel 1571: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1572: }
1573: if ($mode eq 'hide' && $found) {
1.326 albertel 1574: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1575: }
1576: } elsif ($target eq 'edit') {
1577: $result .=&Apache::edit::tag_start($target,$token);
1578: $result.=&Apache::edit::select_arg('Mode:','mode',
1579: [['show','Show'],
1580: ['hide','Hide']]
1581: ,$token);
1582: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1583: [ ['exam','Exam/Quiz Problem'],
1584: ['survey','Survey'],
1585: ['problem','Homework Problem'] ]
1586: ,$token);
1587: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1588: } elsif ($target eq 'modified') {
1589: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1590: $safeeval,'mode','for');
1591: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1592: }
1593: return $result;
1594: }
1595:
1596: sub end_problemtype {
1.159 albertel 1597: return '';
1.24 albertel 1598: }
1.34 albertel 1599:
1600: sub start_startouttext {
1.159 albertel 1601: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1602: my @result=(''.'');
1603: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1604: return (@result);
1.34 albertel 1605: }
1.159 albertel 1606:
1.34 albertel 1607: sub end_startouttext {
1.326 albertel 1608: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1609: my $result='';
1610: my $text='';
1611:
1612: if ($target eq 'edit') {
1.326 albertel 1613: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1614: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1615: <td>".&mt('Delete:').
1.159 albertel 1616: &Apache::edit::deletelist($target,$token)
1617: ."</td>
1.42 albertel 1618: <td>".
1.159 albertel 1619: &Apache::edit::insertlist($target,$token).
1.362 albertel 1620: '</td><td align="right" valign="top">' .
1621: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1622: &Apache::edit::end_row().
1.362 albertel 1623: &Apache::edit::start_spanning_row()."\n".
1.255 www 1624: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1625: }
1626: if ($target eq 'modified') {
1.219 albertel 1627: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1628: }
1629: if ($target eq 'tex') {
1630: $result .= '\noindent ';
1631: }
1632: return $result;
1.34 albertel 1633: }
1.159 albertel 1634:
1.34 albertel 1635: sub start_endouttext {
1.159 albertel 1636: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1637: my $result='';
1638: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1639: if ($target eq "modified") {
1640: $result='<endouttext />'.
1641: &Apache::edit::handle_insertafter('startouttext'); }
1642: return $result;
1.34 albertel 1643: }
1.159 albertel 1644:
1.34 albertel 1645: sub end_endouttext {
1.159 albertel 1646: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1647: my @result=('','');
1648: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1649: return (@result);
1.34 albertel 1650: }
1.159 albertel 1651:
1.45 albertel 1652: sub delete_startouttext {
1.326 albertel 1653: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1654: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1655: my $text=$$parser['-1']->get_text("/endouttext");
1656: my $ntoken=$$parser['-1']->get_token();
1657: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1658: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1659: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1660: # they did the last time round
1661: &Apache::lonxml::increasedepth($ntoken);
1662: &Apache::lonxml::decreasedepth($ntoken);
1663: return 1;
1.193 www 1664: }
1665:
1666: sub start_simpleeditbutton {
1667: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1668: my $result='';
1.284 albertel 1669: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1670: ($target eq 'web') &&
1.330 albertel 1671: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1672: my $url=$env{'request.noversionuri'};
1.193 www 1673: $url=~s/\?.*$//;
1.367 albertel 1674: my ($symb) = &Apache::lonnet::whichuser();
1.194 www 1675: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.356 www 1676: '<a href="'.$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 1677: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1678: }
1679: return $result;
1680: }
1681:
1682: sub end_simpleeditbutton {
1683: return '';
1.45 albertel 1684: }
1.34 albertel 1685:
1.1 albertel 1686: 1;
1687: __END__
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