Annotation of loncom/homework/structuretags.pm, revision 1.387
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.387 ! albertel 4: # $Id: structuretags.pm,v 1.386 2007/08/03 23:29:57 albertel Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.133 sakharuk 30:
1.1 albertel 31: package Apache::structuretags;
32:
33: use strict;
34: use Apache::lonnet;
1.101 sakharuk 35: use Apache::File();
1.147 www 36: use Apache::lonmenu;
1.210 albertel 37: use Apache::lonlocal;
1.231 sakharuk 38: use Apache::lonxml;
1.338 albertel 39: use Apache::lonenc();
1.267 albertel 40: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 41: use lib '/home/httpd/lib/perl/';
42: use LONCAPA;
43:
1.78 harris41 44: BEGIN {
1.248 albertel 45: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));
1.10 albertel 46: }
47:
48: sub start_web {
1.326 albertel 49: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 50: if ($target ne 'edit' && $target ne 'modified') {
51: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
52: if ($target eq 'web' || $target eq 'webgrade') {
53: return $bodytext;
54: }
55: } elsif ($target eq "edit" ) {
56: my $bodytext =
57: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
58: my $result = &Apache::edit::tag_start($target,$token);
59: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
60: return $result;
61: } elsif ( $target eq "modified" ) {
62: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 63: }
64: return '';
1.10 albertel 65: }
66:
67: sub end_web {
1.44 ng 68: return '';
1.10 albertel 69: }
70:
71: sub start_tex {
1.326 albertel 72: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 73: my $result='';
1.383 albertel 74: if ($target ne 'edit' && $target ne 'modified') {
75: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
76: if ($target eq 'tex') {
77: return $bodytext.' ';
78: }
79: } elsif ($target eq "edit" ) {
80: my $bodytext =
81: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
82: my $result = &Apache::edit::tag_start($target,$token);
83: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
84: return $result;
85: } elsif ( $target eq "modified" ) {
86: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 87: }
1.198 sakharuk 88: return $result;;
1.10 albertel 89: }
90:
91: sub end_tex {
1.44 ng 92: return '';
1.9 albertel 93: }
94:
1.48 albertel 95: sub page_start {
1.345 albertel 96: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
97: $extra_head)=@_;
1.159 albertel 98: my %found;
1.207 albertel 99: foreach my $taginside (@$tagstack) {
1.159 albertel 100: foreach my $taglookedfor ('html','body','form') {
101: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
102: }
103: }
104:
1.343 albertel 105: if ($target eq 'tex') {
106: return
107: &Apache::londefdef::start_html($target,$token,$tagstack,
108: $parstack,$parser,$safeeval);
109: }
110:
1.374 albertel 111: $extra_head.= '
112: <script type="text/javascript">
113: function setSubmittedPart (part) {
114: this.document.lonhomework.submitted.value="part_"+part;
115: }
116: </script>
117: ';
118:
1.344 albertel 119: my %body_args;
120: if (defined($found{'html'})) {
121: $body_args{'skip_phases'}{'head'}=1;
122: } else {
1.343 albertel 123:
1.345 albertel 124: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 125:
1.379 albertel 126: $extra_head .= &Apache::londefdef::generate_css_links();
127:
1.384 albertel 128: if ($env{'request.state'} eq 'construct') {
1.343 albertel 129: $extra_head.=&Apache::edit::js_change_detection().
130: "<script type=\"text/javascript\">\n".
131: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
132: &Apache::loncommon::browser_and_searcher_javascript().
133: "\n</script>\n";
134: }
1.159 albertel 135: }
1.343 albertel 136:
1.344 albertel 137: if (defined($found{'body'})) {
138: $body_args{'skip_phases'}{'body'}=1;
139: } elsif (!defined($found{'body'})
140: && $env{'request.state'} eq 'construct') {
1.343 albertel 141: if ($target eq 'web' || $target eq 'edit') {
1.344 albertel 142: # no extra args to bodytag
1.297 albertel 143: }
1.272 albertel 144: } elsif (!defined($found{'body'})) {
1.343 albertel 145: my %add_entries;
1.159 albertel 146: my $background=&Apache::lonxml::get_param('background',$parstack,
147: $safeeval);
1.343 albertel 148: if ($background ne '' ) {
149: $add_entries{'background'} = $background;
150: }
1.344 albertel 151:
1.290 albertel 152: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
153: $safeeval);
1.344 albertel 154: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
155:
156: $body_args{'bgcolor'} = $bgcolor;
157: $body_args{'no_title'} = 1;
158: $body_args{'force_register'} = 1;
159: $body_args{'add_entries'} = \%add_entries;
160: }
1.365 albertel 161: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 162: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
163: \%body_args);
164:
165: if (!defined($found{'body'})
166: && $env{'request.state'} ne 'construct'
167: && ($target eq 'web' || $target eq 'webgrade')) {
168:
1.367 albertel 169: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
1.344 albertel 170: if ($symb eq '' && !$publicuser) {
171: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
172: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
173: $page_start .= $help;
1.159 albertel 174: }
1.344 albertel 175: }
176:
177: if (!defined($found{'body'})) {
1.343 albertel 178: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 179: }
1.344 albertel 180:
1.159 albertel 181: my $form_tag_start;
182: if (!defined($found{'form'})) {
1.337 albertel 183: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.338 albertel 184: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.327 albertel 185: $form_tag_start.=$uri.'" ';
186: if ($target eq 'edit') {
187: $form_tag_start.=&Apache::edit::form_change_detection();
188: }
1.368 albertel 189: $form_tag_start.='>'."\n";
1.355 albertel 190:
191: my $symb=&Apache::lonnet::symbread();
192: if ($symb =~ /\S/) {
193: $symb=
194: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
195: $form_tag_start.=
1.368 albertel 196: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 197: }
1.159 albertel 198: }
1.343 albertel 199: return ($page_start,$form_tag_start);
1.105 albertel 200: }
201:
1.141 matthew 202: #use Time::HiRes();
1.105 albertel 203: sub get_resource_name {
1.159 albertel 204: my ($parstack,$safeeval)=@_;
1.204 albertel 205: if (defined($Apache::lonhomework::name)) {
206: return $Apache::lonhomework::name;
207: }
1.367 albertel 208: my ($symb)=&Apache::lonnet::whichuser();
1.279 albertel 209: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 210: if ($name eq '') {
211: $name=&Apache::lonnet::EXT('resource.title');
212: if ($name eq 'con_lost') { $name = ''; }
213: }
1.204 albertel 214: if ($name!~/\S+/) {
1.284 albertel 215: $name=$env{'request.uri'};
1.205 albertel 216: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 217: }
1.159 albertel 218: $Apache::lonhomework::name=$name;
219: return $name;
1.105 albertel 220: }
221:
222: sub setup_rndseed {
1.159 albertel 223: my ($safeeval)=@_;
224: my $rndseed;
1.367 albertel 225: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 226: if ($env{'request.state'} eq "construct"
227: || $symb eq ''
228: || $Apache::lonhomework::type eq 'practice'
229: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 230: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 231: ['rndseed']);
1.284 albertel 232: $rndseed=$env{'form.rndseed'};
1.159 albertel 233: if (!$rndseed) {
1.162 albertel 234: $rndseed=$Apache::lonhomework::history{'rndseed'};
235: if (!$rndseed) {
236: $rndseed=time;
237: }
1.284 albertel 238: $env{'form.rndseed'}=$rndseed;
1.162 albertel 239: }
1.374 albertel 240: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
241: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 242: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 243: srand(time);
244: $rndseed=int(rand(2100000000));
1.284 albertel 245: $env{'form.rndseed'}=$rndseed;
246: delete($env{'form.resetdata'});
247: delete($env{'form.newrandomization'});
1.159 albertel 248: }
1.187 albertel 249: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 250: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 251: }
1.247 albertel 252: if ($Apache::lonhomework::history{'resource.CODE'}) {
253: $rndseed=&Apache::lonnet::rndseed();
254: }
1.221 albertel 255: if ($safeeval) {
256: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 257: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 258: }
1.159 albertel 259: }
260: return $rndseed;
1.105 albertel 261: }
262:
1.268 albertel 263: sub remember_problem_state {
264: return '
1.284 albertel 265: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
266: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
267: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 268: }
269:
1.105 albertel 270: sub problem_edit_header {
1.268 albertel 271: return '<input type="hidden" name="submitted" value="edit" />'.
272: &Apache::structuretags::remember_problem_state().'
1.210 albertel 273: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 274: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
1.328 albertel 275: <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 276: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
277: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
278: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.359 albertel 279: &Apache::loncommon::help_open_menu('Problem Editing Help','Problem_Editor_XML_Index',5,'Authoring',undef,undef,undef,'Problem Editing Help')
1.260 albertel 280: .'</td></tr></table>'.
1.282 albertel 281: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 282: }
283:
284: sub problem_edit_footer {
1.210 albertel 285: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 286: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
1.348 albertel 287: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 288: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 289: }
290:
1.235 albertel 291: sub option {
292: my ($value,$name) = @_;
293: my $result ="<option value='".$value."' ";
1.284 albertel 294: if ($env{'form.'.$name} eq $value) {
1.235 albertel 295: $result.=" selected='on' ";
296: }
297: $result.='>';
298: return $result;
299: }
300:
1.105 albertel 301: sub problem_web_to_edit_header {
1.159 albertel 302: my ($rndseed)=@_;
1.313 albertel 303: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
1.373 albertel 304: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
1.313 albertel 305: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 306: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
307: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 308: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 309: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 310: $rndseed.'"
1.270 albertel 311: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.384 albertel 312: <span class="LC_nobreak"><label><input type="checkbox" name="showallfoils" ';
1.315 albertel 313: my $show_all_foils_text =
314: ($Apache::lonhomework::parsing_a_task) ?
315: &mt(' Show All Instances')
316: : &mt(' Show All Foils');
317:
1.284 albertel 318: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.384 albertel 319: $result.= ' />'.$show_all_foils_text.'</label></span>'.
1.228 www 320: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.371 albertel 321: '<hr />';
1.386 albertel 322: $result.=&mt('Apply style file: ').'
1.384 albertel 323: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
324: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
325: <input type="submit" name="clear_style_file" value="'.&mt('Clear').'" />
326: <br />';
327:
1.313 albertel 328: if (!$Apache::lonhomework::parsing_a_task) {
329: $result.="
1.235 albertel 330: <nobr>
331: Problem Status:
332: <select name='problemstate'>
1.270 albertel 333: <option value=''></option>
1.235 albertel 334: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
335: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
336: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
337: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
338: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
339: </select>
340: </nobr>
341: <nobr>
342: Problem Type:
343: <select name='problemtype'>
1.270 albertel 344: <option value=''></option>
1.242 albertel 345: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
346: ".&option('problem','problemtype').&mt("Homework problem")."</option>
347: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 348: </select>
349: </nobr>
350: <nobr>
351: Feedback Mode:
352: <select name='problemstatus'>
353: <option value=''></option>
1.242 albertel 354: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
355: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 356: </select>
357: </nobr>
1.242 albertel 358: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 359: <hr />";
1.313 albertel 360: my $numtoanalyze=$env{'form.numtoanalyze'};
361: if (!$numtoanalyze) { $numtoanalyze=20; }
362: $result.= '<input type="submit" name="problemmode" value='.
363: &mt('"Calculate answers').'" /> for
1.136 albertel 364: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 365: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
366: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 367: '',undef,undef,300).
1.210 albertel 368: '<hr />';
1.376 albertel 369: } elsif ($Apache::lonhomework::parsing_a_task) {
370: $result.="
371: <nobr>
372: Problem Status:
373: <select name='problemstate'>
374: <option value=''></option>
375: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
376: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
377: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
378: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
379: </select>
380: </nobr>
381: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
382: <hr />";
1.313 albertel 383: }
1.159 albertel 384: return $result;
1.48 albertel 385: }
386:
1.65 albertel 387: sub initialize_storage {
1.357 albertel 388: my ($given_symb) = @_;
1.353 albertel 389: undef(%Apache::lonhomework::results);
390: undef(%Apache::lonhomework::history);
1.357 albertel 391: my ($symb,$courseid,$domain,$name) =
1.367 albertel 392: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 393:
394: # anonymous users (CODEd exams) have no data
395: if ($name eq 'anonymous'
396: && !defined($domain)) {
397: return;
398: }
399:
1.333 albertel 400: if ($env{'request.state'} eq 'construct'
401: || $symb eq ''
402: || $Apache::lonhomework::type eq 'practice') {
403:
404: my $namespace = $symb || $env{'request.uri'};
405: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 406: ($env{'form.resetdata'} eq &mt('New Problem Variation')
407: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 408: $env{'form.newrandomization'} eq &mt('New Randomization')) {
409: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
410: &Apache::lonxml::debug("Attempt reset");
411: }
1.159 albertel 412: %Apache::lonhomework::history=
1.333 albertel 413: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 414: my ($temp)=keys %Apache::lonhomework::history ;
415: &Apache::lonxml::debug("Return message of $temp");
416: } else {
417: %Apache::lonhomework::history=
418: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
419: }
1.353 albertel 420:
1.159 albertel 421: #ignore error conditions
1.67 albertel 422: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 423: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 424: }
425:
426: # -------------------------------------------------------------finalize_storage
427: # Stores away the result has to a student's environment
428: # checks form.grade_ for specific values, other wises stores
429: # to the running users environment
1.285 raeburn 430: # Will increment totals for attempts, students, and corrects
431: # if running user has student role.
1.65 albertel 432: sub finalize_storage {
1.357 albertel 433: my ($given_symb) = @_;
1.159 albertel 434: my $result;
1.289 albertel 435: if (%Apache::lonhomework::results) {
1.323 albertel 436: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
437: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 438: my ($symb,$courseid,$domain,$name) =
1.367 albertel 439: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 440: if ($env{'request.state'} eq 'construct'
441: || $symb eq ''
442: || $Apache::lonhomework::type eq 'practice') {
443: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 444: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 445: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 446: $namespace,'',$domain,$name);
1.159 albertel 447: &Apache::lonxml::debug('Construct Store return message:'.$result);
448: } else {
449: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
450: $symb,$courseid,$domain,$name);
451: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 452: if ($env{'request.role'} =~/^st/) {
453: &store_aggregates($symb,$courseid);
454: }
1.159 albertel 455: }
1.323 albertel 456: } else {
457: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 458: }
1.159 albertel 459: return $result;
1.65 albertel 460: }
461:
1.285 raeburn 462: # -------------------------------------------------------------store_aggregates
463: # Sends hash of values to be incremented in nohist_resourcetracker.db
464: # for the course. Increments total number of attempts, unique students
465: # and corrects for each part for an instance of a problem, as appropriate.
466: sub store_aggregates {
467: my ($symb,$courseid) = @_;
1.286 albertel 468: my %aggregate;
469: my @parts;
1.288 albertel 470: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
471: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 472: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 473: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 474: push(@parts, $1);
1.285 raeburn 475: }
476: }
1.286 albertel 477: foreach my $part (@parts) {
478: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
479: eq 'APPROX_ANS' ||
480: $Apache::lonhomework::results{'resource.'.$part.'.award'}
481: eq 'EXACT_ANS') {
1.287 albertel 482: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 483: }
1.286 albertel 484: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 485: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 486: } else {
1.293 albertel 487: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 488: if ($last_reset) {
1.293 albertel 489: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 490: $aggregate{$symb."\0".$part."\0users"} = 1;
491: }
492: }
1.285 raeburn 493: }
1.287 albertel 494: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 495: }
1.292 raeburn 496: if (keys (%aggregate) > 0) {
1.289 albertel 497: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 498: $cdomain,$cname);
499: }
500: }
1.289 albertel 501:
1.65 albertel 502: sub checkout_msg {
1.211 albertel 503: my %lt=&Apache::lonlocal::texthash(
504: 'resource'=>'The resource needs to be checked out',
505: '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.',
506: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
507: 'checkout'=>'Check out Exam for Viewing',
508: 'checkout?'=>'Check out Exam?');
1.352 albertel 509: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 510: return (<<ENDCHECKOUT);
1.211 albertel 511: <h2>$lt{'resource'}</h2>
512: <p>$lt{'id_expln'}</p>
513: <font color="red">
514: <p>$lt{'warning'}</p>
1.91 albertel 515: </font>
1.352 albertel 516: <form name="checkout" method="POST" action="$uri">
1.91 albertel 517: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 518: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 519: </form>
520: ENDCHECKOUT
521: }
522:
1.252 albertel 523: sub firstaccess_msg {
1.253 albertel 524: my ($time,$symb)=@_;
525: my ($map)=&Apache::lonnet::decode_symb($symb);
526: my $foldertitle=&Apache::lonnet::gettitle($map);
527: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.352 albertel 528: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.252 albertel 529: return (<<ENDCHECKOUT);
1.253 albertel 530: <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 531: <form name="markaccess" method="POST" action="$uri">
1.252 albertel 532: <input type="hidden" name="markaccess" value="yes" />
533: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
534: </form>
535: ENDCHECKOUT
536: }
537:
1.204 albertel 538: sub init_problem_globals {
539: my ($type)=@_;
540: #initialize globals
1.308 foxr 541: # For problems, we start out in part 0 (outside a <part> tag).
542: # and part 0 is used to describe the main body of the <problem>
543: #
1.204 albertel 544: if ($type eq 'problem') {
545: $Apache::inputtags::part='0';
546: @Apache::inputtags::partlist=('0');
1.266 albertel 547: $Apache::lonhomework::problemstatus=&get_problem_status('0');
548: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 549:
1.266 albertel 550: } elsif ($type eq 'library') {
1.204 albertel 551: $Apache::inputtags::part='';
552: @Apache::inputtags::partlist=();
553: $Apache::lonhomework::problemstatus='';
1.266 albertel 554: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 555:
1.304 albertel 556: } elsif ($type eq 'Task') {
557: $Apache::inputtags::part='0';
558: @Apache::inputtags::partlist=('0');
559: $Apache::lonhomework::problemstatus='';
560: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 561: }
562: @Apache::inputtags::responselist = ();
563: @Apache::inputtags::importlist = ();
564: @Apache::inputtags::previous=();
565: @Apache::inputtags::previous_version=();
566: $Apache::structuretags::printanswer='No';
567: @Apache::structuretags::whileconds=();
568: @Apache::structuretags::whilebody=();
569: @Apache::structuretags::whileline=();
570: $Apache::lonhomework::scantronmode=0;
571: undef($Apache::lonhomework::name);
1.358 albertel 572: undef($Apache::lonhomework::default_type);
573: undef($Apache::lonhomework::type);
1.204 albertel 574: }
575:
576: sub reset_problem_globals {
577: my ($type)=@_;
578: undef(%Apache::lonhomework::history);
579: undef(%Apache::lonhomework::results);
580: undef($Apache::inputtags::part);
1.208 albertel 581: #don't undef this, lonhomework.pm takes care of this, we use this to
582: #detect if we try to do 2 problems in one file
583: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 584: undef($Apache::lonhomework::name);
1.358 albertel 585: undef($Apache::lonhomework::default_type);
586: undef($Apache::lonhomework::type);
587: undef($Apache::lonhomework::scantronmode);
588: undef($Apache::lonhomework::problemstatus);
589: undef($Apache::lonhomework::ignore_response_errors);
1.204 albertel 590: }
591:
1.241 albertel 592: sub set_problem_state {
1.240 albertel 593: my ($part)=@_;
1.284 albertel 594: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 595: $Apache::lonhomework::history{"resource.$part.solved"}=
596: 'correct_by_student';
597: }
598: }
599:
1.241 albertel 600: sub get_problem_status {
601: my ($part)=@_;
1.267 albertel 602: my $problem_status;
1.284 albertel 603: if ($env{'request.state'} eq 'construct' &&
604: defined($env{'form.problemstatus'})) {
605: $problem_status=$env{'form.problemstatus'};
1.267 albertel 606: } else {
607: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
608: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 609: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 610: }
611: return $problem_status;
612: }
613:
1.9 albertel 614: sub start_problem {
1.326 albertel 615: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 616:
1.311 foxr 617: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 618: if (!$Apache::lonxml::metamode) {
619: &Apache::lonxml::startredirection();
620: }
1.311 foxr 621:
1.308 foxr 622: # Problems don't nest and we don't allow more than one <problem> in
623: # a .problem file.
624: #
1.184 albertel 625: if ( $Apache::inputtags::part ne '' ||
626: $Apache::lonhomework::parsing_a_problem) {
627: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 628: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 629: return '';
630: }
1.184 albertel 631:
632: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 633: &init_problem_globals('problem');
1.166 albertel 634:
1.284 albertel 635: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 636: $Apache::lonhomework::scantronmode=1;
637: }
1.161 albertel 638:
1.159 albertel 639: if ($target ne 'analyze') {
1.284 albertel 640: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 641: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 642: if (($env{'request.state'} eq 'construct') &&
643: defined($env{'form.problemtype'})) {
644: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 645: }
1.332 albertel 646: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 647: }
1.164 albertel 648: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 649: my $uri=$env{'request.uri'};
1.159 albertel 650: if ($uri=~/\.(\w+)$/) {
651: $Apache::lonhomework::type=$1;
652: &Apache::lonxml::debug("Using type of $1");
653: } else {
654: $Apache::lonhomework::type='problem';
655: &Apache::lonxml::debug("Using default type, problem, :$uri:");
656: }
1.87 albertel 657: }
1.301 albertel 658: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 659:
1.363 albertel 660: &initialize_storage();
1.366 albertel 661: if ($target eq 'web') {
662: &Apache::lonxml::debug(" grading history ");
663: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
664: }
1.363 albertel 665:
1.159 albertel 666: #added vars to the scripting enviroment
1.213 albertel 667: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 668: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 669: &Apache::run::run($expression,$safeeval);
1.159 albertel 670: my $status;
671: my $accessmsg;
672:
1.343 albertel 673: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 674: my ($result,$form_tag_start);
1.354 albertel 675: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
676: || $target eq 'edit') {
1.350 albertel 677: ($result,$form_tag_start) =
678: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
679: $name);
680: }
681:
1.284 albertel 682: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 683:
684: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
685: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
686: $target eq 'tex') {
687: #handle exam checkout
688: if ($Apache::lonhomework::type eq 'exam') {
689: my $token=
690: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 691: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 692: $token=&Apache::lonxml::maketoken();
693: $Apache::lonhomework::history{"resource.0.outtoken"}=
694: $token;
695: }
1.343 albertel 696: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 697: }
1.284 albertel 698: if ($env{'form.markaccess'}) {
1.252 albertel 699: &Apache::lonnet::set_first_access('map');
700: }
1.159 albertel 701: #handle rand seed in construction space
702: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 703: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 704: if ($env{'request.state'} ne "construct" &&
705: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 706: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
707: $rndseed.'" />'.
708: '<input type="submit" name="resetdata"
1.334 albertel 709: value="'.&mt('New Problem Variation').'" />';
710: if (exists($env{'form.username'})) {
711: $form_tag_start.=
1.164 albertel 712: '<input type="hidden" name="username"
1.284 albertel 713: value="'.$env{'form.username'}.'" />';
1.334 albertel 714: }
1.333 albertel 715: if ($env{'request.role.adv'}) {
1.267 albertel 716: $form_tag_start.=
1.300 albertel 717: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 718: if (defined($env{'form.showallfoils'})) {
1.267 albertel 719: $form_tag_start.='checked="on"';
720: }
1.300 albertel 721: $form_tag_start.= ' />'.&mt(' Show All Foils').
722: '</label>';
1.267 albertel 723: }
724: $form_tag_start.='<hr />';
1.162 albertel 725: }
1.324 albertel 726:
727: ($status,$accessmsg,my $slot_name,my $slot) =
728: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 729: push (@Apache::inputtags::status,$status);
1.324 albertel 730:
1.159 albertel 731: my $expression='$external::datestatus="'.$status.'";';
732: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
733: &Apache::run::run($expression,$safeeval);
734: &Apache::lonxml::debug("Got $status");
1.324 albertel 735:
1.159 albertel 736: if (( $status eq 'CLOSED' ) ||
737: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 738: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 739: ( $status eq 'BANNED') ||
1.216 albertel 740: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 741: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 742: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 743: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
744: $style);
1.159 albertel 745: if ( $target eq "web" ) {
1.343 albertel 746: my $msg;
1.159 albertel 747: if ($status eq 'UNAVAILABLE') {
1.245 albertel 748: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 749: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 750: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 751: }
1.216 albertel 752: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 753: $msg.='The problem '.$accessmsg;
754: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 755: $msg.=&checkout_msg();
1.252 albertel 756: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 757: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 758: } elsif ($status eq 'NOT_IN_A_SLOT') {
759: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 760: }
761: $result.=$msg.'<br />';
762: } elsif ($target eq 'tex') {
1.332 albertel 763: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
764: : '\begin{minipage}{\textwidth}';
765: $result.='\begin{document}\noindent \vskip 1 mm '.
766: $startminipage.'\vskip 0 mm';
1.159 albertel 767: if ($status eq 'UNAVAILABLE') {
1.211 albertel 768: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 769: } else {
1.211 albertel 770: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 771: }
772: }
1.324 albertel 773: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 774: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
775: $style);
1.324 albertel 776: if ($target eq 'web') {
1.375 albertel 777: $result .=
778: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 779: } elsif ($target eq 'grade') {
780: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
781: 'problem');
782: }
1.159 albertel 783: } elsif ($target eq 'web') {
1.360 albertel 784: if ($status eq 'CAN_ANSWER'
785: && $slot_name ne ''
786: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
787: # unproctored slot access, self checkin
788: &Apache::bridgetask::check_in('problem',undef,undef,
789: $slot_name);
790: }
1.368 albertel 791: $result.="\n $form_tag_start \t".
1.227 albertel 792: '<input type="hidden" name="submitted" value="yes" />';
793: # create a page header and exit
1.284 albertel 794: if ($env{'request.state'} eq "construct") {
795: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 796: }
797: # if we are viewing someone else preserve that info
1.284 albertel 798: if (defined $env{'form.grade_symb'}) {
1.227 albertel 799: foreach my $field ('symb','courseid','domain','username') {
800: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 801: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 802: }
803: }
804: } elsif ($target eq 'tex') {
1.319 foxr 805: $result .= 'INSERTTEXFRONTMATTERHERE';
806:
1.99 sakharuk 807: }
1.159 albertel 808: } elsif ($target eq 'edit') {
1.343 albertel 809: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 810: $Apache::lonxml::warnings_error_header=
811: &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 812: my $temp=&Apache::edit::insertlist($target,$token);
813: $result.=$temp;
814: } elsif ($target eq 'modified') {
815: $result=$token->[4];
816: } else {
817: # page_start returned a starting result, delete it if we don't need it
818: $result = '';
1.99 sakharuk 819: }
1.159 albertel 820: return $result;
1.9 albertel 821: }
822:
823: sub end_problem {
1.159 albertel 824: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 825: my $result;
1.310 foxr 826:
1.321 albertel 827: if (!$Apache::lonxml::metamode) {
828: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 829: $Apache::lonxml::post_evaluate=0;
1.321 albertel 830: }
1.319 foxr 831:
832: if ($target eq 'tex') {
1.321 albertel 833: # Figure out the front matter and replace the
834: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
835: # this in end_problem because whether or not we display due
836: # dates depends on whether due dates have already been
837: # displayed in the problem parts.
838:
1.319 foxr 839: my $frontmatter = '';
840: my $startminipage = '';
841: if (not $env{'form.problem_split'}=~/yes/) {
842: $startminipage = '\begin{minipage}{\textwidth}';
843: }
844: my $id = $Apache::inputtags::part;
845: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
846: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
847: my @packages = split /,/,$packages;
848: my $allow_print_points = 0;
849: foreach my $partial_key (@packages) {
850: if ($partial_key=~m/^part_0$/) {
851: $allow_print_points=1;
852: }
853: }
854: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
855: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
856: if (lc($env{'course.'.$env{'request.course.id'}.
857: '.disableexampointprint'}) eq 'yes') {
858: $allow_print_points=0;
859: }
860: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
861: 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 ';
862: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
863: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
864:
865: # Figure out what the due date is and if we need to print
866: # it in the problem header. We have been logging the
867: # last due date written to file.
868:
869: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
870: my $duedate = POSIX::strftime("%c",localtime($duetime));
871: my $temp_file;
872: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
873:
874: # Figure out what the last printed due date is or set it
875: # to the epoch if no duedates have been printed.
876:
877: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
878: if (-e $filename) {
879: $temp_file = Apache::File->new($filename);
880: my @due_file = <$temp_file>;
881: $due_file_content = $due_file[$#due_file];
882: chomp $due_file_content;
883: }
884:
885: # We display the due date iff it is not the same as the last
886: # duedate in problem header ($due_file_content), and
887: # none of our parts displayed a duedate.
888: #
889: my $parts_with_displayduedate;
890: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
891: $parts_with_displayduedate =
892: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
893: } else {
894: $parts_with_displayduedate = 0;
895: }
896: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
897: $temp_file = Apache::File->new('>'.$filename);
898: print $temp_file "$duetime\n";
899: if (not $env{'request.symb'} =~ m/\.page_/) {
900: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
901: $frontmatter .= $begin_doc.
902: '\textit{Due date: '.$duedate.'} '.$toc_line;
903: } else {
904: $frontmatter.= $begin_doc.$toc_line;
905: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
906: }
907: } else {
1.381 albertel 908: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\'.$startminipage;
1.319 foxr 909: }
910: } else {
911: if (not $env{'request.symb'} =~ m/\.page_/) {
912: $frontmatter .= $begin_doc.$toc_line;
913: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
914: } else {
1.381 albertel 915: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 916: }
917: }
918: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
919: }
920:
1.159 albertel 921: my $status=$Apache::inputtags::status['-1'];
922: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
923: $target eq 'tex') {
1.249 albertel 924: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 925: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 926: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
927: &Apache::inputtags::grade;
1.324 albertel 928: } elsif ($status eq 'NEEDS_CHECKIN') {
929: # no need to grade, and don't want to hide data
1.249 albertel 930: } else {
931: # move any submission data to .hidden
932: &Apache::inputtags::hidealldata($Apache::inputtags::part);
933: }
1.159 albertel 934: } elsif ( ($target eq 'web' || $target eq 'tex') &&
935: $Apache::inputtags::part eq '0' &&
1.252 albertel 936: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 937: # if part is zero, no <part>s existed, so we need show the current
938: # grading status
939: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
940: $result.= $gradestatus;
941: }
942: if (
1.284 albertel 943: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 944: ($target eq 'answer') || ($target eq 'tex')
945: ) {
1.227 albertel 946: if ($target ne 'tex' &&
1.284 albertel 947: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 948: $result.="</form>";
1.348 albertel 949: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 950: }
951: if ($target eq 'web') {
1.346 albertel 952: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 953: } elsif ($target eq 'tex') {
1.178 sakharuk 954: my $endminipage = '';
1.284 albertel 955: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 956: $endminipage = '\end{minipage}';
957: }
1.284 albertel 958: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 959: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 960: } else {
1.262 sakharuk 961: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 962: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 963: $result .= $endminipage.'\end{document} ';
964: } else {
1.382 albertel 965: $result .= $endminipage;
1.262 sakharuk 966: }
1.159 albertel 967: }
968: }
969: }
970: if ($target eq 'grade') {
971: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
972: &finalize_storage();
973: }
1.284 albertel 974: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
975: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 976: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 977: # normally we get it from above, but in CSTR
1.172 albertel 978: # we always show answer mode too.
1.159 albertel 979: }
980: } elsif ($target eq 'meta') {
981: if ($Apache::inputtags::part eq '0') {
1.179 albertel 982: @Apache::inputtags::response=();
1.159 albertel 983: $result=&Apache::response::mandatory_part_meta;
984: }
1.215 albertel 985: $result.=&Apache::response::meta_part_order();
1.258 albertel 986: $result.=&Apache::response::meta_response_order();
1.159 albertel 987: } elsif ($target eq 'edit') {
988: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 989: $result .= &problem_edit_footer();
1.320 albertel 990: } elsif ($target eq 'modified') {
991: $result .= $token->[2];
1.159 albertel 992: }
1.155 albertel 993:
1.284 albertel 994: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 995: &Apache::inputtags::check_for_duplicate_ids();
996: }
1.204 albertel 997:
998: &reset_problem_globals('problem');
1.159 albertel 999:
1000: return $result;
1.48 albertel 1001: }
1002:
1.108 albertel 1003:
1.48 albertel 1004: sub start_library {
1.159 albertel 1005: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1006: my ($result,$form_tag_start);
1.371 albertel 1007: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1008: &init_problem_globals('library');
1009: $Apache::lonhomework::type='problem';
1010: }
1.159 albertel 1011: if ($target eq 'edit') {
1.343 albertel 1012: ($result,$form_tag_start)=
1013: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1014: 'Edit');
1015: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1016: my $temp=&Apache::edit::insertlist($target,$token);
1017: $result.=$temp;
1018: } elsif ($target eq 'modified') {
1019: $result=$token->[4];
1.340 albertel 1020: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1021: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1022: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1023: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1024: ($result,$form_tag_start)=
1025: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1026: $name);
1.159 albertel 1027: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1028: $result.=" \n $form_tag_start".
1.159 albertel 1029: '<input type="hidden" name="submitted" value="yes" />';
1030: $result.=&problem_web_to_edit_header($rndseed);
1031: }
1032: return $result;
1.48 albertel 1033: }
1034:
1035: sub end_library {
1.159 albertel 1036: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1037: my $result='';
1038: if ($target eq 'edit') {
1039: $result=&problem_edit_footer();
1.371 albertel 1040: } elsif ($target eq 'web'
1041: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1042: && $env{'request.state'} eq "construct") {
1.349 albertel 1043: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1044: }
1.371 albertel 1045: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1046: &reset_problem_globals('library');
1047: }
1.159 albertel 1048: return $result;
1.197 www 1049: }
1050:
1051: sub start_definetag {
1.326 albertel 1052: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1053:
1054: my $result;
1055:
1056: my $name = $token->[2]->{'name'};
1.326 albertel 1057: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 1058: if ($name=~/^\//) {
1059: $result=
1060: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
1061: } else {
1062: $result=
1063: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
1064: }
1065: $skip=~s/\</\<\;/gs;
1066: $skip=~s/\>/\>\;/gs;
1067: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1068: return $result;
1069: }
1070:
1071: sub end_definetag {
1072: return '';
1.1 albertel 1073: }
1074:
1075: sub start_block {
1.201 albertel 1076: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1077:
1078: my $result;
1.1 albertel 1079:
1.339 albertel 1080: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1081: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1082: my $code = $token->[2]->{'condition'};
1.385 albertel 1083: if (defined($code) && $code ne '') {
1.137 albertel 1084: if (!$Apache::lonxml::default_homework_loaded) {
1085: &Apache::lonxml::default_homework_load($safeeval);
1086: }
1.131 albertel 1087: $result = &Apache::run::run($code,$safeeval);
1088: &Apache::lonxml::debug("block :$code: returned :$result:");
1089: } else {
1090: $result='1';
1091: }
1092: if ( ! $result ) {
1.201 albertel 1093: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1094: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1095: }
1096: $result='';
1097: } elsif ($target eq 'edit') {
1098: $result .=&Apache::edit::tag_start($target,$token);
1099: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1100: $token,40);
1101: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1102: } elsif ($target eq 'modified') {
1103: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1104: $safeeval,'condition');
1105: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1106: }
1.131 albertel 1107: return $result;
1.1 albertel 1108: }
1109:
1110: sub end_block {
1.167 www 1111: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1112: my $result;
1113: if ($target eq "edit") {
1114: $result.= &Apache::edit::tag_end($target,$token,'');
1115: }
1116: return $result;
1117: }
1118:
1119: sub start_languageblock {
1.201 albertel 1120: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1121:
1122: my $result;
1123:
1.339 albertel 1124: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1125: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1126: my $include = $token->[2]->{'include'};
1127: my $exclude = $token->[2]->{'exclude'};
1128: my %languages=&Apache::loncommon::display_languages();
1129: $result='1';
1130: if ($include) {
1131: $result='';
1132: foreach (split(/\,/,$include)) {
1133: if ($languages{$_}) { $result='1'; }
1134: }
1135: }
1136: if ($exclude) {
1137: foreach (split(/\,/,$exclude)) {
1138: if ($languages{$_}) { $result='0'; }
1139: }
1140: }
1141: if ( ! $result ) {
1142: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1143: $style);
1144: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1145: }
1146: $result='';
1.167 www 1147: } elsif ($target eq 'edit') {
1148: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1149: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1150: $token,40);
1.211 albertel 1151: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1152: $token,40);
1153: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1154: } elsif ($target eq 'modified') {
1155: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1156: $safeeval,'include',
1157: 'exclude');
1.167 www 1158: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1159: }
1160: return $result;
1161: }
1162:
1163: sub end_languageblock {
1.170 www 1164: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1165: my $result;
1.201 albertel 1166: if ($target eq "edit") {
1.170 www 1167: $result.= &Apache::edit::tag_end($target,$token,'');
1168: }
1169: return $result;
1170: }
1171:
1172: sub start_instructorcomment {
1.201 albertel 1173: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1174:
1175: my $result;
1176:
1.339 albertel 1177: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1178: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1179: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1180: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1181: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1182: $parser,$style);
1.170 www 1183: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1184: }
1185: $result='';
1186: } elsif ($target eq 'edit') {
1187: $result .=&Apache::edit::tag_start($target,$token);
1188: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1189: }
1190: return $result;
1191: }
1192:
1193: sub end_instructorcomment {
1.159 albertel 1194: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1195: my $result;
1196: if ($target eq "edit") {
1197: $result.= &Apache::edit::tag_end($target,$token,'');
1198: }
1199: return $result;
1.4 tsai 1200: }
1201:
1202: sub start_while {
1.326 albertel 1203: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1204:
1.160 albertel 1205: my $result;
1.339 albertel 1206: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1207: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1208: my $code = $token->[2]->{'condition'};
1.4 tsai 1209:
1.160 albertel 1210: push( @Apache::structuretags::whileconds, $code);
1211: if (!$Apache::lonxml::default_homework_loaded) {
1212: &Apache::lonxml::default_homework_load($safeeval);
1213: }
1214: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1215: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1216: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1217: push( @Apache::structuretags::whileline, $token->[5]);
1218: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1219: if ( $result ) {
1220: &Apache::lonxml::newparser($parser,\$bodytext);
1221: }
1222: } elsif ($target eq 'edit') {
1223: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1224: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1225: $token,40);
1226: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1227: } elsif ($target eq 'modified') {
1228: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1229: $safeeval,'condition');
1230: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1231: }
1.160 albertel 1232: return $result;
1.4 tsai 1233: }
1234:
1235: sub end_while {
1.159 albertel 1236: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1237: my $result;
1238:
1.339 albertel 1239: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1240: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1241: my $code = pop(@Apache::structuretags::whileconds);
1242: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1243: my $line = pop(@Apache::structuretags::whileline);
1244: my $return = &Apache::run::run($code,$safeeval);
1245: my $starttime=time;
1246: my $error=0;
1247: while ($return) {
1248: if (time-$starttime >
1249: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1250: $return = 0; $error=1; next;
1.161 albertel 1251: }
1252: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1253: if ($target eq 'grade' || $target eq 'answer' ||
1254: $target eq 'analyze') {
1255: # grade/answer/analyze should produce no output but if we
1256: # are redirecting, the redirecter should know what to do
1257: # with the output
1258: if (!$Apache::lonxml::redirection) { undef($result); }
1259: }
1.161 albertel 1260: $return = &Apache::run::run($code,$safeeval);
1261: }
1262: if ($error) {
1.270 albertel 1263: &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 1264: }
1265: } elsif ($target eq "edit") {
1266: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1267: }
1.160 albertel 1268: return $result;
1.1 albertel 1269: }
1.6 tsai 1270:
1.160 albertel 1271: # <randomlist show="1">
1.6 tsai 1272: # <tag1>..</tag1>
1273: # <tag2>..</tag2>
1274: # <tag3>..</tag3>
1.160 albertel 1275: # ...
1.6 tsai 1276: # </randomlist>
1277: sub start_randomlist {
1.326 albertel 1278: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1279: my $result;
1.339 albertel 1280: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1281: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1282: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1283: my $b_parser= HTML::LCParser->new(\$body);
1284: $b_parser->xml_mode(1);
1285: $b_parser->marked_sections(1);
1.159 albertel 1286: my $b_tok;
1287: my @randomlist;
1288: my $list_item;
1289: while($b_tok = $b_parser->get_token() ) {
1290: if($b_tok->[0] eq 'S') { # start tag
1291: # get content of the tag until matching end tag
1292: # get all text upto the matching tag
1293: # and push the content into @randomlist
1294: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1295: $b_parser);
1296: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1297: push(@randomlist,$list_item);
1298: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1299: # $list_item</b>";
1300: }
1301: if($b_tok->[0] eq 'T') { # text
1302: # what to do with text in between tags?
1303: # print "<b>TEXT $b_tok->[1]</b><br />";
1304: }
1305: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1306: # print "<b>END-TAG $b_tok->[1]</b><br />";
1307: # }
1308: }
1.303 albertel 1309: if (@randomlist) {
1310: my @idx_arr = (0 .. $#randomlist);
1311: &Apache::structuretags::shuffle(\@idx_arr);
1312: my $bodytext = '';
1313: my $show=$#randomlist;
1314: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1315: $showarg--;
1316: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1317: for(0 .. $show) {
1318: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1319: }
1320: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1321: }
1322: } elsif ($target eq 'edit' ) {
1323: $result .=&Apache::edit::tag_start($target,$token);
1324: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1325: $token,5);
1326: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1327: } elsif ($target eq 'modified' ) {
1328: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1329: $safeeval,'show');
1330: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1331: }
1332: return $result;
1.7 tsai 1333: }
1334:
1335: sub shuffle {
1336: my $a=shift;
1337: my $i;
1.303 albertel 1338: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1339: &Apache::response::pushrandomnumber();
1.159 albertel 1340: for($i=@$a;--$i;) {
1341: my $j=int(&Math::Random::random_uniform() * ($i+1));
1342: next if $i == $j;
1343: @$a[$i,$j] = @$a[$j,$i];
1344: }
1.251 albertel 1345: &Apache::response::poprandomnumber();
1.7 tsai 1346: }
1.6 tsai 1347: }
1348:
1349: sub end_randomlist {
1.159 albertel 1350: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1351: my $result;
1352: if ($target eq 'edit' ) {
1353: $result=&Apache::edit::tag_end($target,$token,
1354: 'End Randomly Parsed Block');
1355: }
1356: return $result;
1.6 tsai 1357: }
1358:
1.283 albertel 1359: sub ordered_show_check {
1360: my $last_part=$Apache::inputtags::partlist[-2];
1361: my $in_order=
1362: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1363: my $in_order_show=1;
1364: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1365: $in_order_show=&Apache::response::check_status($last_part);
1366: }
1367: return $in_order_show;
1368: }
1369:
1.11 albertel 1370: sub start_part {
1.326 albertel 1371: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1372: if (!$Apache::lonxml::metamode) {
1373: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1374: # duedates.
1375: }
1.159 albertel 1376: my $result='';
1.386 albertel 1377: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1378: $Apache::inputtags::part=$id;
1.177 albertel 1379: push(@Apache::inputtags::partlist,$id);
1380: @Apache::inputtags::response=();
1.159 albertel 1381: @Apache::inputtags::previous=();
1382: @Apache::inputtags::previous_version=();
1.241 albertel 1383: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1384: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1385: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1386: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1387: my $in_order_show=&ordered_show_check();
1.214 albertel 1388: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1389: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1390: &Apache::run::run($expression,$safeeval);
1.159 albertel 1391:
1392: if ($target eq 'meta') {
1.224 www 1393: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1394: return &Apache::response::mandatory_part_meta.
1395: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1396: } elsif ($target eq 'web' || $target eq 'grade' ||
1397: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1398: if ($hidden || !$in_order_show) {
1.326 albertel 1399: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1400: } else {
1401: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1402: push (@Apache::inputtags::status,$status);
1403: my $expression='$external::datestatus="'.$status.'";';
1404: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1405: &Apache::run::run($expression,$safeeval);
1.284 albertel 1406: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1407: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1408: }
1.216 albertel 1409: if (( $status eq 'CLOSED' ) ||
1410: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1411: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1412: ( $status eq 'BANNED') ||
1413: ( $status eq 'UNAVAILABLE') ||
1414: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1415: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1416: $style);
1.159 albertel 1417: if ( $target eq "web" ) {
1.211 albertel 1418: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1419: } elsif ( $target eq 'tex' ) {
1.284 albertel 1420: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1421: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1422: } else {
1.211 albertel 1423: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1424: }
1.159 albertel 1425: }
1426: } else {
1427: if ($target eq 'tex') {
1.284 albertel 1428: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1429: if ($$tagstack[-2] eq 'td') {
1430: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1431: } else {
1432: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1433: }
1.195 sakharuk 1434: }
1.159 albertel 1435: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1436: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1437: my @allkeys = split /,/,$allkeys;
1438: my $allow_print_points = 0;
1439: foreach my $partial_key (@allkeys) {
1.230 albertel 1440: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1441: if ($1 ne '0') {$allow_print_points=1;}
1442: }
1443: }
1.275 albertel 1444: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1445: if (defined($maxtries) && $maxtries < 0) {
1446: $allow_print_points=0;
1447: }
1.302 albertel 1448: if (lc($env{'course.'.$env{'request.course.id'}.
1449: '.disableexampointprint'}) eq 'yes') {
1450: $allow_print_points=0;
1451: }
1.222 sakharuk 1452: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1453: } elsif ($target eq 'web') {
1.356 www 1454: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1455: }
1456: }
1457: }
1458: } elsif ($target eq 'edit') {
1459: $result.=&Apache::edit::tag_start($target,$token);
1460: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1461: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1462: ' '.
1463: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1464: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1465: } elsif ($target eq 'modified') {
1466: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1467: $safeeval,'id','display');
1.159 albertel 1468: if ($constructtag) {
1.225 albertel 1469: #limiting ids to only letters numbers, and space
1.224 www 1470: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1471: $result = &Apache::edit::rebuild_tag($token);
1472: }
1473: }
1474: return $result;
1.11 albertel 1475: }
1476:
1477: sub end_part {
1.159 albertel 1478: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1479: &Apache::lonxml::debug("in end_part $target ");
1480: my $status=$Apache::inputtags::status['-1'];
1481: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1482: my $in_order_show=&ordered_show_check();
1.321 albertel 1483: my $result;
1484: if (!$Apache::lonxml::metamode) {
1485: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1486: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1487: }
1.312 albertel 1488: if ($target eq 'grade') {
1.249 albertel 1489: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1490: !$hidden && $in_order_show) {
1.311 foxr 1491: $result.=&Apache::inputtags::grade;
1.249 albertel 1492: } else {
1493: # move any submission data to .hidden
1494: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1495: }
1.283 albertel 1496: } elsif (($target eq 'web' || $target eq 'tex') &&
1497: !$hidden && $in_order_show) {
1.159 albertel 1498: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1499: $target);
1.212 albertel 1500: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1501: $gradestatus='';
1502: }
1.311 foxr 1503: $result.=$gradestatus;
1.265 sakharuk 1504: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1505: } elsif ($target eq 'edit') {
1.311 foxr 1506: $result.=&Apache::edit::end_table();
1.322 albertel 1507: } elsif ($target eq 'modified') {
1508: $result .= $token->[2];
1.159 albertel 1509: }
1510: pop @Apache::inputtags::status;
1511: $Apache::inputtags::part='';
1.295 albertel 1512: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1513: return $result;
1.11 albertel 1514: }
1.1 albertel 1515:
1.25 albertel 1516: sub start_preduedate {
1.326 albertel 1517: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1518: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1519: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1520: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1521: if (!$Apache::lonhomework::scantronmode &&
1522: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1523: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1524: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1525: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1526: }
1.24 albertel 1527: }
1.159 albertel 1528: return '';
1.24 albertel 1529: }
1530:
1.25 albertel 1531: sub end_preduedate {
1.159 albertel 1532: return '';
1.24 albertel 1533: }
1534:
1.369 foxr 1535: # In all the modes where <postanswerdate> text is
1536: # displayable, all we do is eat up the text between the start/stop
1537: # tags if the conditions are not right to display it.
1.25 albertel 1538: sub start_postanswerdate {
1.326 albertel 1539: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1540: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1541: &Apache::lonnet::allowed('pav',
1542: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1543: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1544: $target eq 'tex' ) {
1.300 albertel 1545: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1546: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1547: (($target eq 'tex') && !$pav)) {
1.326 albertel 1548: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1549: }
1550: }
1551: return '';
1.24 albertel 1552: }
1553:
1.25 albertel 1554: sub end_postanswerdate {
1.159 albertel 1555: return '';
1.24 albertel 1556: }
1557:
1.25 albertel 1558: sub start_notsolved {
1.326 albertel 1559: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1560: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1561: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1562: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1563: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1564: if ($gradestatus =~ /^correct/ &&
1565: &Apache::response::show_answer()) {
1.159 albertel 1566: &Apache::lonxml::debug("skipping");
1.326 albertel 1567: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1568: }
1.24 albertel 1569: }
1.159 albertel 1570: return '';
1.24 albertel 1571: }
1572:
1.25 albertel 1573: sub end_notsolved {
1.159 albertel 1574: return '';
1.24 albertel 1575: }
1576:
1577: sub start_solved {
1.326 albertel 1578: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1579: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1580: $target eq 'tex') {
1581: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1582: if ($gradestatus !~ /^correct/ ||
1583: !&Apache::response::show_answer()) {
1.326 albertel 1584: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1585: }
1.24 albertel 1586: }
1.159 albertel 1587: return '';
1.24 albertel 1588: }
1589:
1590: sub end_solved {
1.248 albertel 1591: return '';
1592: }
1593:
1594: sub start_problemtype {
1.326 albertel 1595: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1596: my $result;
1.339 albertel 1597: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1598: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1599: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1600: if (!defined($mode)) { $mode='show'; }
1601: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1602: my $found=0;
1603: foreach my $type (split(',',$for)) {
1604: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1605: }
1606: if ($mode eq 'show' && !$found) {
1.326 albertel 1607: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1608: }
1609: if ($mode eq 'hide' && $found) {
1.326 albertel 1610: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1611: }
1612: } elsif ($target eq 'edit') {
1613: $result .=&Apache::edit::tag_start($target,$token);
1614: $result.=&Apache::edit::select_arg('Mode:','mode',
1615: [['show','Show'],
1616: ['hide','Hide']]
1617: ,$token);
1618: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1619: [ ['exam','Exam/Quiz Problem'],
1620: ['survey','Survey'],
1621: ['problem','Homework Problem'] ]
1622: ,$token);
1623: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1624: } elsif ($target eq 'modified') {
1625: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1626: $safeeval,'mode','for');
1627: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1628: }
1629: return $result;
1630: }
1631:
1632: sub end_problemtype {
1.159 albertel 1633: return '';
1.24 albertel 1634: }
1.34 albertel 1635:
1636: sub start_startouttext {
1.159 albertel 1637: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1638: my @result=(''.'');
1639: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1640: return (@result);
1.34 albertel 1641: }
1.159 albertel 1642:
1.34 albertel 1643: sub end_startouttext {
1.326 albertel 1644: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1645: my $result='';
1646: my $text='';
1647:
1648: if ($target eq 'edit') {
1.326 albertel 1649: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1650: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1651: <td>".&mt('Delete:').
1.159 albertel 1652: &Apache::edit::deletelist($target,$token)
1653: ."</td>
1.42 albertel 1654: <td>".
1.159 albertel 1655: &Apache::edit::insertlist($target,$token).
1.362 albertel 1656: '</td><td align="right" valign="top">' .
1657: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1658: &Apache::edit::end_row().
1.362 albertel 1659: &Apache::edit::start_spanning_row()."\n".
1.255 www 1660: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1661: }
1662: if ($target eq 'modified') {
1.219 albertel 1663: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1664: }
1665: if ($target eq 'tex') {
1666: $result .= '\noindent ';
1667: }
1668: return $result;
1.34 albertel 1669: }
1.159 albertel 1670:
1.34 albertel 1671: sub start_endouttext {
1.159 albertel 1672: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1673: my $result='';
1674: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1675: if ($target eq "modified") {
1676: $result='<endouttext />'.
1.377 albertel 1677: &Apache::edit::handle_insertafter('startouttext');
1678: }
1.159 albertel 1679: return $result;
1.34 albertel 1680: }
1.159 albertel 1681:
1.34 albertel 1682: sub end_endouttext {
1.159 albertel 1683: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1684: my @result=('','');
1685: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1686: return (@result);
1.34 albertel 1687: }
1.159 albertel 1688:
1.45 albertel 1689: sub delete_startouttext {
1.326 albertel 1690: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1691: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1692: my $text=$$parser['-1']->get_text("/endouttext");
1693: my $ntoken=$$parser['-1']->get_token();
1694: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1695: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1696: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1697: # they did the last time round
1698: &Apache::lonxml::increasedepth($ntoken);
1699: &Apache::lonxml::decreasedepth($ntoken);
1700: return 1;
1.193 www 1701: }
1702:
1703: sub start_simpleeditbutton {
1704: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1705: my $result='';
1.284 albertel 1706: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1707: ($target eq 'web') &&
1.330 albertel 1708: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1709: my $url=$env{'request.noversionuri'};
1.193 www 1710: $url=~s/\?.*$//;
1.367 albertel 1711: my ($symb) = &Apache::lonnet::whichuser();
1.194 www 1712: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.356 www 1713: '<a href="'.$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 1714: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1715: }
1716: return $result;
1717: }
1718:
1719: sub end_simpleeditbutton {
1720: return '';
1.45 albertel 1721: }
1.34 albertel 1722:
1.1 albertel 1723: 1;
1724: __END__
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