Annotation of loncom/homework/structuretags.pm, revision 1.386
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.386 ! albertel 4: # $Id: structuretags.pm,v 1.385 2007/07/24 18:03:54 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 $result;
1.65 albertel 460: }
1.289 albertel 461: use Data::Dumper;
1.65 albertel 462:
1.285 raeburn 463: # -------------------------------------------------------------store_aggregates
464: # Sends hash of values to be incremented in nohist_resourcetracker.db
465: # for the course. Increments total number of attempts, unique students
466: # and corrects for each part for an instance of a problem, as appropriate.
467: sub store_aggregates {
468: my ($symb,$courseid) = @_;
1.286 albertel 469: my %aggregate;
470: my @parts;
1.288 albertel 471: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
472: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 473: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 474: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 475: push(@parts, $1);
1.285 raeburn 476: }
477: }
1.286 albertel 478: foreach my $part (@parts) {
479: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
480: eq 'APPROX_ANS' ||
481: $Apache::lonhomework::results{'resource.'.$part.'.award'}
482: eq 'EXACT_ANS') {
1.287 albertel 483: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 484: }
1.286 albertel 485: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 486: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 487: } else {
1.293 albertel 488: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 489: if ($last_reset) {
1.293 albertel 490: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 491: $aggregate{$symb."\0".$part."\0users"} = 1;
492: }
493: }
1.285 raeburn 494: }
1.287 albertel 495: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 496: }
1.292 raeburn 497: if (keys (%aggregate) > 0) {
1.289 albertel 498: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 499: $cdomain,$cname);
500: }
501: }
1.289 albertel 502:
1.65 albertel 503: sub checkout_msg {
1.211 albertel 504: my %lt=&Apache::lonlocal::texthash(
505: 'resource'=>'The resource needs to be checked out',
506: '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.',
507: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
508: 'checkout'=>'Check out Exam for Viewing',
509: 'checkout?'=>'Check out Exam?');
1.352 albertel 510: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 511: return (<<ENDCHECKOUT);
1.211 albertel 512: <h2>$lt{'resource'}</h2>
513: <p>$lt{'id_expln'}</p>
514: <font color="red">
515: <p>$lt{'warning'}</p>
1.91 albertel 516: </font>
1.352 albertel 517: <form name="checkout" method="POST" action="$uri">
1.91 albertel 518: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 519: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 520: </form>
521: ENDCHECKOUT
522: }
523:
1.252 albertel 524: sub firstaccess_msg {
1.253 albertel 525: my ($time,$symb)=@_;
526: my ($map)=&Apache::lonnet::decode_symb($symb);
527: my $foldertitle=&Apache::lonnet::gettitle($map);
528: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.352 albertel 529: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.252 albertel 530: return (<<ENDCHECKOUT);
1.253 albertel 531: <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 532: <form name="markaccess" method="POST" action="$uri">
1.252 albertel 533: <input type="hidden" name="markaccess" value="yes" />
534: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
535: </form>
536: ENDCHECKOUT
537: }
538:
1.204 albertel 539: sub init_problem_globals {
540: my ($type)=@_;
541: #initialize globals
1.308 foxr 542: # For problems, we start out in part 0 (outside a <part> tag).
543: # and part 0 is used to describe the main body of the <problem>
544: #
1.204 albertel 545: if ($type eq 'problem') {
546: $Apache::inputtags::part='0';
547: @Apache::inputtags::partlist=('0');
1.266 albertel 548: $Apache::lonhomework::problemstatus=&get_problem_status('0');
549: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 550:
1.266 albertel 551: } elsif ($type eq 'library') {
1.204 albertel 552: $Apache::inputtags::part='';
553: @Apache::inputtags::partlist=();
554: $Apache::lonhomework::problemstatus='';
1.266 albertel 555: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 556:
1.304 albertel 557: } elsif ($type eq 'Task') {
558: $Apache::inputtags::part='0';
559: @Apache::inputtags::partlist=('0');
560: $Apache::lonhomework::problemstatus='';
561: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 562: }
563: @Apache::inputtags::responselist = ();
564: @Apache::inputtags::importlist = ();
565: @Apache::inputtags::previous=();
566: @Apache::inputtags::previous_version=();
567: $Apache::structuretags::printanswer='No';
568: @Apache::structuretags::whileconds=();
569: @Apache::structuretags::whilebody=();
570: @Apache::structuretags::whileline=();
571: $Apache::lonhomework::scantronmode=0;
572: undef($Apache::lonhomework::name);
1.358 albertel 573: undef($Apache::lonhomework::default_type);
574: undef($Apache::lonhomework::type);
1.204 albertel 575: }
576:
577: sub reset_problem_globals {
578: my ($type)=@_;
579: undef(%Apache::lonhomework::history);
580: undef(%Apache::lonhomework::results);
581: undef($Apache::inputtags::part);
1.208 albertel 582: #don't undef this, lonhomework.pm takes care of this, we use this to
583: #detect if we try to do 2 problems in one file
584: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 585: undef($Apache::lonhomework::name);
1.358 albertel 586: undef($Apache::lonhomework::default_type);
587: undef($Apache::lonhomework::type);
588: undef($Apache::lonhomework::scantronmode);
589: undef($Apache::lonhomework::problemstatus);
590: undef($Apache::lonhomework::ignore_response_errors);
1.204 albertel 591: }
592:
1.241 albertel 593: sub set_problem_state {
1.240 albertel 594: my ($part)=@_;
1.284 albertel 595: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 596: $Apache::lonhomework::history{"resource.$part.solved"}=
597: 'correct_by_student';
598: }
599: }
600:
1.241 albertel 601: sub get_problem_status {
602: my ($part)=@_;
1.267 albertel 603: my $problem_status;
1.284 albertel 604: if ($env{'request.state'} eq 'construct' &&
605: defined($env{'form.problemstatus'})) {
606: $problem_status=$env{'form.problemstatus'};
1.267 albertel 607: } else {
608: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
609: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 610: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 611: }
612: return $problem_status;
613: }
614:
1.9 albertel 615: sub start_problem {
1.326 albertel 616: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 617:
1.311 foxr 618: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 619: if (!$Apache::lonxml::metamode) {
620: &Apache::lonxml::startredirection();
621: }
1.311 foxr 622:
1.308 foxr 623: # Problems don't nest and we don't allow more than one <problem> in
624: # a .problem file.
625: #
1.184 albertel 626: if ( $Apache::inputtags::part ne '' ||
627: $Apache::lonhomework::parsing_a_problem) {
628: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 629: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 630: return '';
631: }
1.184 albertel 632:
633: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 634: &init_problem_globals('problem');
1.166 albertel 635:
1.284 albertel 636: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 637: $Apache::lonhomework::scantronmode=1;
638: }
1.161 albertel 639:
1.159 albertel 640: if ($target ne 'analyze') {
1.284 albertel 641: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 642: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 643: if (($env{'request.state'} eq 'construct') &&
644: defined($env{'form.problemtype'})) {
645: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 646: }
1.332 albertel 647: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 648: }
1.164 albertel 649: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 650: my $uri=$env{'request.uri'};
1.159 albertel 651: if ($uri=~/\.(\w+)$/) {
652: $Apache::lonhomework::type=$1;
653: &Apache::lonxml::debug("Using type of $1");
654: } else {
655: $Apache::lonhomework::type='problem';
656: &Apache::lonxml::debug("Using default type, problem, :$uri:");
657: }
1.87 albertel 658: }
1.301 albertel 659: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 660:
1.363 albertel 661: &initialize_storage();
1.366 albertel 662: if ($target eq 'web') {
663: &Apache::lonxml::debug(" grading history ");
664: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
665: }
1.363 albertel 666:
1.159 albertel 667: #added vars to the scripting enviroment
1.213 albertel 668: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 669: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 670: &Apache::run::run($expression,$safeeval);
1.159 albertel 671: my $status;
672: my $accessmsg;
673:
1.343 albertel 674: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 675: my ($result,$form_tag_start);
1.354 albertel 676: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
677: || $target eq 'edit') {
1.350 albertel 678: ($result,$form_tag_start) =
679: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
680: $name);
681: }
682:
1.284 albertel 683: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 684:
685: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
686: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
687: $target eq 'tex') {
688: #handle exam checkout
689: if ($Apache::lonhomework::type eq 'exam') {
690: my $token=
691: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 692: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 693: $token=&Apache::lonxml::maketoken();
694: $Apache::lonhomework::history{"resource.0.outtoken"}=
695: $token;
696: }
1.343 albertel 697: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 698: }
1.284 albertel 699: if ($env{'form.markaccess'}) {
1.252 albertel 700: &Apache::lonnet::set_first_access('map');
701: }
1.159 albertel 702: #handle rand seed in construction space
703: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 704: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 705: if ($env{'request.state'} ne "construct" &&
706: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 707: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
708: $rndseed.'" />'.
709: '<input type="submit" name="resetdata"
1.334 albertel 710: value="'.&mt('New Problem Variation').'" />';
711: if (exists($env{'form.username'})) {
712: $form_tag_start.=
1.164 albertel 713: '<input type="hidden" name="username"
1.284 albertel 714: value="'.$env{'form.username'}.'" />';
1.334 albertel 715: }
1.333 albertel 716: if ($env{'request.role.adv'}) {
1.267 albertel 717: $form_tag_start.=
1.300 albertel 718: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 719: if (defined($env{'form.showallfoils'})) {
1.267 albertel 720: $form_tag_start.='checked="on"';
721: }
1.300 albertel 722: $form_tag_start.= ' />'.&mt(' Show All Foils').
723: '</label>';
1.267 albertel 724: }
725: $form_tag_start.='<hr />';
1.162 albertel 726: }
1.324 albertel 727:
728: ($status,$accessmsg,my $slot_name,my $slot) =
729: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 730: push (@Apache::inputtags::status,$status);
1.324 albertel 731:
1.159 albertel 732: my $expression='$external::datestatus="'.$status.'";';
733: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
734: &Apache::run::run($expression,$safeeval);
735: &Apache::lonxml::debug("Got $status");
1.324 albertel 736:
1.159 albertel 737: if (( $status eq 'CLOSED' ) ||
738: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 739: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 740: ( $status eq 'BANNED') ||
1.216 albertel 741: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 742: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 743: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 744: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
745: $style);
1.159 albertel 746: if ( $target eq "web" ) {
1.343 albertel 747: my $msg;
1.159 albertel 748: if ($status eq 'UNAVAILABLE') {
1.245 albertel 749: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 750: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 751: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 752: }
1.216 albertel 753: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 754: $msg.='The problem '.$accessmsg;
755: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 756: $msg.=&checkout_msg();
1.252 albertel 757: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 758: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 759: } elsif ($status eq 'NOT_IN_A_SLOT') {
760: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 761: }
762: $result.=$msg.'<br />';
763: } elsif ($target eq 'tex') {
1.332 albertel 764: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
765: : '\begin{minipage}{\textwidth}';
766: $result.='\begin{document}\noindent \vskip 1 mm '.
767: $startminipage.'\vskip 0 mm';
1.159 albertel 768: if ($status eq 'UNAVAILABLE') {
1.211 albertel 769: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 770: } else {
1.211 albertel 771: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 772: }
773: }
1.324 albertel 774: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 775: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
776: $style);
1.324 albertel 777: if ($target eq 'web') {
1.375 albertel 778: $result .=
779: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 780: } elsif ($target eq 'grade') {
781: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
782: 'problem');
783: }
1.159 albertel 784: } elsif ($target eq 'web') {
1.360 albertel 785: if ($status eq 'CAN_ANSWER'
786: && $slot_name ne ''
787: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
788: # unproctored slot access, self checkin
789: &Apache::bridgetask::check_in('problem',undef,undef,
790: $slot_name);
791: }
1.368 albertel 792: $result.="\n $form_tag_start \t".
1.227 albertel 793: '<input type="hidden" name="submitted" value="yes" />';
794: # create a page header and exit
1.284 albertel 795: if ($env{'request.state'} eq "construct") {
796: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 797: }
798: # if we are viewing someone else preserve that info
1.284 albertel 799: if (defined $env{'form.grade_symb'}) {
1.227 albertel 800: foreach my $field ('symb','courseid','domain','username') {
801: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 802: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 803: }
804: }
805: } elsif ($target eq 'tex') {
1.319 foxr 806: $result .= 'INSERTTEXFRONTMATTERHERE';
807:
1.99 sakharuk 808: }
1.159 albertel 809: } elsif ($target eq 'edit') {
1.343 albertel 810: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 811: $Apache::lonxml::warnings_error_header=
812: &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 813: my $temp=&Apache::edit::insertlist($target,$token);
814: $result.=$temp;
815: } elsif ($target eq 'modified') {
816: $result=$token->[4];
817: } else {
818: # page_start returned a starting result, delete it if we don't need it
819: $result = '';
1.99 sakharuk 820: }
1.159 albertel 821: return $result;
1.9 albertel 822: }
823:
824: sub end_problem {
1.159 albertel 825: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 826: my $result;
1.310 foxr 827:
1.321 albertel 828: if (!$Apache::lonxml::metamode) {
829: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 830: $Apache::lonxml::post_evaluate=0;
1.321 albertel 831: }
1.319 foxr 832:
833: if ($target eq 'tex') {
1.321 albertel 834: # Figure out the front matter and replace the
835: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
836: # this in end_problem because whether or not we display due
837: # dates depends on whether due dates have already been
838: # displayed in the problem parts.
839:
1.319 foxr 840: my $frontmatter = '';
841: my $startminipage = '';
842: if (not $env{'form.problem_split'}=~/yes/) {
843: $startminipage = '\begin{minipage}{\textwidth}';
844: }
845: my $id = $Apache::inputtags::part;
846: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
847: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
848: my @packages = split /,/,$packages;
849: my $allow_print_points = 0;
850: foreach my $partial_key (@packages) {
851: if ($partial_key=~m/^part_0$/) {
852: $allow_print_points=1;
853: }
854: }
855: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
856: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
857: if (lc($env{'course.'.$env{'request.course.id'}.
858: '.disableexampointprint'}) eq 'yes') {
859: $allow_print_points=0;
860: }
861: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
862: 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 ';
863: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
864: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
865:
866: # Figure out what the due date is and if we need to print
867: # it in the problem header. We have been logging the
868: # last due date written to file.
869:
870: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
871: my $duedate = POSIX::strftime("%c",localtime($duetime));
872: my $temp_file;
873: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
874:
875: # Figure out what the last printed due date is or set it
876: # to the epoch if no duedates have been printed.
877:
878: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
879: if (-e $filename) {
880: $temp_file = Apache::File->new($filename);
881: my @due_file = <$temp_file>;
882: $due_file_content = $due_file[$#due_file];
883: chomp $due_file_content;
884: }
885:
886: # We display the due date iff it is not the same as the last
887: # duedate in problem header ($due_file_content), and
888: # none of our parts displayed a duedate.
889: #
890: my $parts_with_displayduedate;
891: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
892: $parts_with_displayduedate =
893: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
894: } else {
895: $parts_with_displayduedate = 0;
896: }
897: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
898: $temp_file = Apache::File->new('>'.$filename);
899: print $temp_file "$duetime\n";
900: if (not $env{'request.symb'} =~ m/\.page_/) {
901: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
902: $frontmatter .= $begin_doc.
903: '\textit{Due date: '.$duedate.'} '.$toc_line;
904: } else {
905: $frontmatter.= $begin_doc.$toc_line;
906: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
907: }
908: } else {
1.381 albertel 909: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\'.$startminipage;
1.319 foxr 910: }
911: } else {
912: if (not $env{'request.symb'} =~ m/\.page_/) {
913: $frontmatter .= $begin_doc.$toc_line;
914: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
915: } else {
1.381 albertel 916: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 917: }
918: }
919: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
920: }
921:
1.159 albertel 922: my $status=$Apache::inputtags::status['-1'];
923: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
924: $target eq 'tex') {
1.249 albertel 925: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 926: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 927: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
928: &Apache::inputtags::grade;
1.324 albertel 929: } elsif ($status eq 'NEEDS_CHECKIN') {
930: # no need to grade, and don't want to hide data
1.249 albertel 931: } else {
932: # move any submission data to .hidden
933: &Apache::inputtags::hidealldata($Apache::inputtags::part);
934: }
1.159 albertel 935: } elsif ( ($target eq 'web' || $target eq 'tex') &&
936: $Apache::inputtags::part eq '0' &&
1.252 albertel 937: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 938: # if part is zero, no <part>s existed, so we need show the current
939: # grading status
940: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
941: $result.= $gradestatus;
942: }
943: if (
1.284 albertel 944: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 945: ($target eq 'answer') || ($target eq 'tex')
946: ) {
1.227 albertel 947: if ($target ne 'tex' &&
1.284 albertel 948: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 949: $result.="</form>";
1.348 albertel 950: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 951: }
952: if ($target eq 'web') {
1.346 albertel 953: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 954: } elsif ($target eq 'tex') {
1.178 sakharuk 955: my $endminipage = '';
1.284 albertel 956: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 957: $endminipage = '\end{minipage}';
958: }
1.284 albertel 959: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 960: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 961: } else {
1.262 sakharuk 962: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 963: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 964: $result .= $endminipage.'\end{document} ';
965: } else {
1.382 albertel 966: $result .= $endminipage;
1.262 sakharuk 967: }
1.159 albertel 968: }
969: }
970: }
971: if ($target eq 'grade') {
972: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
973: &finalize_storage();
974: }
1.284 albertel 975: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
976: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 977: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 978: # normally we get it from above, but in CSTR
1.172 albertel 979: # we always show answer mode too.
1.159 albertel 980: }
981: } elsif ($target eq 'meta') {
982: if ($Apache::inputtags::part eq '0') {
1.179 albertel 983: @Apache::inputtags::response=();
1.159 albertel 984: $result=&Apache::response::mandatory_part_meta;
985: }
1.215 albertel 986: $result.=&Apache::response::meta_part_order();
1.258 albertel 987: $result.=&Apache::response::meta_response_order();
1.159 albertel 988: } elsif ($target eq 'edit') {
989: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 990: $result .= &problem_edit_footer();
1.320 albertel 991: } elsif ($target eq 'modified') {
992: $result .= $token->[2];
1.159 albertel 993: }
1.155 albertel 994:
1.284 albertel 995: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 996: &Apache::inputtags::check_for_duplicate_ids();
997: }
1.204 albertel 998:
999: &reset_problem_globals('problem');
1.159 albertel 1000:
1001: return $result;
1.48 albertel 1002: }
1003:
1.108 albertel 1004:
1.48 albertel 1005: sub start_library {
1.159 albertel 1006: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1007: my ($result,$form_tag_start);
1.371 albertel 1008: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1009: &init_problem_globals('library');
1010: $Apache::lonhomework::type='problem';
1011: }
1.159 albertel 1012: if ($target eq 'edit') {
1.343 albertel 1013: ($result,$form_tag_start)=
1014: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1015: 'Edit');
1016: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1017: my $temp=&Apache::edit::insertlist($target,$token);
1018: $result.=$temp;
1019: } elsif ($target eq 'modified') {
1020: $result=$token->[4];
1.340 albertel 1021: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1022: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1023: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1024: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1025: ($result,$form_tag_start)=
1026: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1027: $name);
1.159 albertel 1028: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1029: $result.=" \n $form_tag_start".
1.159 albertel 1030: '<input type="hidden" name="submitted" value="yes" />';
1031: $result.=&problem_web_to_edit_header($rndseed);
1032: }
1033: return $result;
1.48 albertel 1034: }
1035:
1036: sub end_library {
1.159 albertel 1037: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1038: my $result='';
1039: if ($target eq 'edit') {
1040: $result=&problem_edit_footer();
1.371 albertel 1041: } elsif ($target eq 'web'
1042: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1043: && $env{'request.state'} eq "construct") {
1.349 albertel 1044: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1045: }
1.371 albertel 1046: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1047: &reset_problem_globals('library');
1048: }
1.159 albertel 1049: return $result;
1.197 www 1050: }
1051:
1052: sub start_definetag {
1.326 albertel 1053: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1054:
1055: my $result;
1056:
1057: my $name = $token->[2]->{'name'};
1.326 albertel 1058: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 1059: if ($name=~/^\//) {
1060: $result=
1061: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
1062: } else {
1063: $result=
1064: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
1065: }
1066: $skip=~s/\</\<\;/gs;
1067: $skip=~s/\>/\>\;/gs;
1068: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1069: return $result;
1070: }
1071:
1072: sub end_definetag {
1073: return '';
1.1 albertel 1074: }
1075:
1076: sub start_block {
1.201 albertel 1077: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1078:
1079: my $result;
1.1 albertel 1080:
1.339 albertel 1081: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1082: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1083: my $code = $token->[2]->{'condition'};
1.385 albertel 1084: if (defined($code) && $code ne '') {
1.137 albertel 1085: if (!$Apache::lonxml::default_homework_loaded) {
1086: &Apache::lonxml::default_homework_load($safeeval);
1087: }
1.131 albertel 1088: $result = &Apache::run::run($code,$safeeval);
1089: &Apache::lonxml::debug("block :$code: returned :$result:");
1090: } else {
1091: $result='1';
1092: }
1093: if ( ! $result ) {
1.201 albertel 1094: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1095: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1096: }
1097: $result='';
1098: } elsif ($target eq 'edit') {
1099: $result .=&Apache::edit::tag_start($target,$token);
1100: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1101: $token,40);
1102: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1103: } elsif ($target eq 'modified') {
1104: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1105: $safeeval,'condition');
1106: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1107: }
1.131 albertel 1108: return $result;
1.1 albertel 1109: }
1110:
1111: sub end_block {
1.167 www 1112: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1113: my $result;
1114: if ($target eq "edit") {
1115: $result.= &Apache::edit::tag_end($target,$token,'');
1116: }
1117: return $result;
1118: }
1119:
1120: sub start_languageblock {
1.201 albertel 1121: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1122:
1123: my $result;
1124:
1.339 albertel 1125: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1126: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1127: my $include = $token->[2]->{'include'};
1128: my $exclude = $token->[2]->{'exclude'};
1129: my %languages=&Apache::loncommon::display_languages();
1130: $result='1';
1131: if ($include) {
1132: $result='';
1133: foreach (split(/\,/,$include)) {
1134: if ($languages{$_}) { $result='1'; }
1135: }
1136: }
1137: if ($exclude) {
1138: foreach (split(/\,/,$exclude)) {
1139: if ($languages{$_}) { $result='0'; }
1140: }
1141: }
1142: if ( ! $result ) {
1143: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1144: $style);
1145: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1146: }
1147: $result='';
1.167 www 1148: } elsif ($target eq 'edit') {
1149: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1150: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1151: $token,40);
1.211 albertel 1152: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1153: $token,40);
1154: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1155: } elsif ($target eq 'modified') {
1156: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1157: $safeeval,'include',
1158: 'exclude');
1.167 www 1159: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1160: }
1161: return $result;
1162: }
1163:
1164: sub end_languageblock {
1.170 www 1165: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1166: my $result;
1.201 albertel 1167: if ($target eq "edit") {
1.170 www 1168: $result.= &Apache::edit::tag_end($target,$token,'');
1169: }
1170: return $result;
1171: }
1172:
1173: sub start_instructorcomment {
1.201 albertel 1174: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1175:
1176: my $result;
1177:
1.339 albertel 1178: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1179: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1180: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1181: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1182: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1183: $parser,$style);
1.170 www 1184: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1185: }
1186: $result='';
1187: } elsif ($target eq 'edit') {
1188: $result .=&Apache::edit::tag_start($target,$token);
1189: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1190: }
1191: return $result;
1192: }
1193:
1194: sub end_instructorcomment {
1.159 albertel 1195: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1196: my $result;
1197: if ($target eq "edit") {
1198: $result.= &Apache::edit::tag_end($target,$token,'');
1199: }
1200: return $result;
1.4 tsai 1201: }
1202:
1203: sub start_while {
1.326 albertel 1204: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1205:
1.160 albertel 1206: my $result;
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 = $token->[2]->{'condition'};
1.4 tsai 1210:
1.160 albertel 1211: push( @Apache::structuretags::whileconds, $code);
1212: if (!$Apache::lonxml::default_homework_loaded) {
1213: &Apache::lonxml::default_homework_load($safeeval);
1214: }
1215: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1216: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1217: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1218: push( @Apache::structuretags::whileline, $token->[5]);
1219: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1220: if ( $result ) {
1221: &Apache::lonxml::newparser($parser,\$bodytext);
1222: }
1223: } elsif ($target eq 'edit') {
1224: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1225: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1226: $token,40);
1227: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1228: } elsif ($target eq 'modified') {
1229: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1230: $safeeval,'condition');
1231: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1232: }
1.160 albertel 1233: return $result;
1.4 tsai 1234: }
1235:
1236: sub end_while {
1.159 albertel 1237: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1238: my $result;
1239:
1.339 albertel 1240: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1241: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1242: my $code = pop(@Apache::structuretags::whileconds);
1243: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1244: my $line = pop(@Apache::structuretags::whileline);
1245: my $return = &Apache::run::run($code,$safeeval);
1246: my $starttime=time;
1247: my $error=0;
1248: while ($return) {
1249: if (time-$starttime >
1250: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1251: $return = 0; $error=1; next;
1.161 albertel 1252: }
1253: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1254: if ($target eq 'grade' || $target eq 'answer' ||
1255: $target eq 'analyze') {
1256: # grade/answer/analyze should produce no output but if we
1257: # are redirecting, the redirecter should know what to do
1258: # with the output
1259: if (!$Apache::lonxml::redirection) { undef($result); }
1260: }
1.161 albertel 1261: $return = &Apache::run::run($code,$safeeval);
1262: }
1263: if ($error) {
1.270 albertel 1264: &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 1265: }
1266: } elsif ($target eq "edit") {
1267: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1268: }
1.160 albertel 1269: return $result;
1.1 albertel 1270: }
1.6 tsai 1271:
1.160 albertel 1272: # <randomlist show="1">
1.6 tsai 1273: # <tag1>..</tag1>
1274: # <tag2>..</tag2>
1275: # <tag3>..</tag3>
1.160 albertel 1276: # ...
1.6 tsai 1277: # </randomlist>
1278: sub start_randomlist {
1.326 albertel 1279: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1280: my $result;
1.339 albertel 1281: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1282: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1283: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1284: my $b_parser= HTML::LCParser->new(\$body);
1285: $b_parser->xml_mode(1);
1286: $b_parser->marked_sections(1);
1.159 albertel 1287: my $b_tok;
1288: my @randomlist;
1289: my $list_item;
1290: while($b_tok = $b_parser->get_token() ) {
1291: if($b_tok->[0] eq 'S') { # start tag
1292: # get content of the tag until matching end tag
1293: # get all text upto the matching tag
1294: # and push the content into @randomlist
1295: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1296: $b_parser);
1297: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1298: push(@randomlist,$list_item);
1299: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1300: # $list_item</b>";
1301: }
1302: if($b_tok->[0] eq 'T') { # text
1303: # what to do with text in between tags?
1304: # print "<b>TEXT $b_tok->[1]</b><br />";
1305: }
1306: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1307: # print "<b>END-TAG $b_tok->[1]</b><br />";
1308: # }
1309: }
1.303 albertel 1310: if (@randomlist) {
1311: my @idx_arr = (0 .. $#randomlist);
1312: &Apache::structuretags::shuffle(\@idx_arr);
1313: my $bodytext = '';
1314: my $show=$#randomlist;
1315: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1316: $showarg--;
1317: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1318: for(0 .. $show) {
1319: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1320: }
1321: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1322: }
1323: } elsif ($target eq 'edit' ) {
1324: $result .=&Apache::edit::tag_start($target,$token);
1325: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1326: $token,5);
1327: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1328: } elsif ($target eq 'modified' ) {
1329: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1330: $safeeval,'show');
1331: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1332: }
1333: return $result;
1.7 tsai 1334: }
1335:
1336: sub shuffle {
1337: my $a=shift;
1338: my $i;
1.303 albertel 1339: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1340: &Apache::response::pushrandomnumber();
1.159 albertel 1341: for($i=@$a;--$i;) {
1342: my $j=int(&Math::Random::random_uniform() * ($i+1));
1343: next if $i == $j;
1344: @$a[$i,$j] = @$a[$j,$i];
1345: }
1.251 albertel 1346: &Apache::response::poprandomnumber();
1.7 tsai 1347: }
1.6 tsai 1348: }
1349:
1350: sub end_randomlist {
1.159 albertel 1351: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1352: my $result;
1353: if ($target eq 'edit' ) {
1354: $result=&Apache::edit::tag_end($target,$token,
1355: 'End Randomly Parsed Block');
1356: }
1357: return $result;
1.6 tsai 1358: }
1359:
1.283 albertel 1360: sub ordered_show_check {
1361: my $last_part=$Apache::inputtags::partlist[-2];
1362: my $in_order=
1363: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1364: my $in_order_show=1;
1365: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1366: $in_order_show=&Apache::response::check_status($last_part);
1367: }
1368: return $in_order_show;
1369: }
1370:
1.11 albertel 1371: sub start_part {
1.326 albertel 1372: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1373: if (!$Apache::lonxml::metamode) {
1374: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1375: # duedates.
1376: }
1.159 albertel 1377: my $result='';
1.386 ! albertel 1378: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1379: $Apache::inputtags::part=$id;
1.177 albertel 1380: push(@Apache::inputtags::partlist,$id);
1381: @Apache::inputtags::response=();
1.159 albertel 1382: @Apache::inputtags::previous=();
1383: @Apache::inputtags::previous_version=();
1.241 albertel 1384: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1385: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1386: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1387: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1388: my $in_order_show=&ordered_show_check();
1.214 albertel 1389: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1390: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1391: &Apache::run::run($expression,$safeeval);
1.159 albertel 1392:
1393: if ($target eq 'meta') {
1.224 www 1394: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1395: return &Apache::response::mandatory_part_meta.
1396: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1397: } elsif ($target eq 'web' || $target eq 'grade' ||
1398: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1399: if ($hidden || !$in_order_show) {
1.326 albertel 1400: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1401: } else {
1402: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1403: push (@Apache::inputtags::status,$status);
1404: my $expression='$external::datestatus="'.$status.'";';
1405: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1406: &Apache::run::run($expression,$safeeval);
1.284 albertel 1407: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1408: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1409: }
1.216 albertel 1410: if (( $status eq 'CLOSED' ) ||
1411: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1412: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1413: ( $status eq 'BANNED') ||
1414: ( $status eq 'UNAVAILABLE') ||
1415: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1416: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1417: $style);
1.159 albertel 1418: if ( $target eq "web" ) {
1.211 albertel 1419: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1420: } elsif ( $target eq 'tex' ) {
1.284 albertel 1421: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1422: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1423: } else {
1.211 albertel 1424: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1425: }
1.159 albertel 1426: }
1427: } else {
1428: if ($target eq 'tex') {
1.284 albertel 1429: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1430: if ($$tagstack[-2] eq 'td') {
1431: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1432: } else {
1433: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1434: }
1.195 sakharuk 1435: }
1.159 albertel 1436: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1437: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1438: my @allkeys = split /,/,$allkeys;
1439: my $allow_print_points = 0;
1440: foreach my $partial_key (@allkeys) {
1.230 albertel 1441: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1442: if ($1 ne '0') {$allow_print_points=1;}
1443: }
1444: }
1.275 albertel 1445: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1446: if (defined($maxtries) && $maxtries < 0) {
1447: $allow_print_points=0;
1448: }
1.302 albertel 1449: if (lc($env{'course.'.$env{'request.course.id'}.
1450: '.disableexampointprint'}) eq 'yes') {
1451: $allow_print_points=0;
1452: }
1.222 sakharuk 1453: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1454: } elsif ($target eq 'web') {
1.356 www 1455: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1456: }
1457: }
1458: }
1459: } elsif ($target eq 'edit') {
1460: $result.=&Apache::edit::tag_start($target,$token);
1461: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1462: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1463: ' '.
1464: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1465: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1466: } elsif ($target eq 'modified') {
1467: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1468: $safeeval,'id','display');
1.159 albertel 1469: if ($constructtag) {
1.225 albertel 1470: #limiting ids to only letters numbers, and space
1.224 www 1471: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1472: $result = &Apache::edit::rebuild_tag($token);
1473: }
1474: }
1475: return $result;
1.11 albertel 1476: }
1477:
1478: sub end_part {
1.159 albertel 1479: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1480: &Apache::lonxml::debug("in end_part $target ");
1481: my $status=$Apache::inputtags::status['-1'];
1482: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1483: my $in_order_show=&ordered_show_check();
1.321 albertel 1484: my $result;
1485: if (!$Apache::lonxml::metamode) {
1486: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1487: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1488: }
1.312 albertel 1489: if ($target eq 'grade') {
1.249 albertel 1490: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1491: !$hidden && $in_order_show) {
1.311 foxr 1492: $result.=&Apache::inputtags::grade;
1.249 albertel 1493: } else {
1494: # move any submission data to .hidden
1495: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1496: }
1.283 albertel 1497: } elsif (($target eq 'web' || $target eq 'tex') &&
1498: !$hidden && $in_order_show) {
1.159 albertel 1499: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1500: $target);
1.212 albertel 1501: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1502: $gradestatus='';
1503: }
1.311 foxr 1504: $result.=$gradestatus;
1.265 sakharuk 1505: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1506: } elsif ($target eq 'edit') {
1.311 foxr 1507: $result.=&Apache::edit::end_table();
1.322 albertel 1508: } elsif ($target eq 'modified') {
1509: $result .= $token->[2];
1.159 albertel 1510: }
1511: pop @Apache::inputtags::status;
1512: $Apache::inputtags::part='';
1.295 albertel 1513: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1514: return $result;
1.11 albertel 1515: }
1.1 albertel 1516:
1.25 albertel 1517: sub start_preduedate {
1.326 albertel 1518: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1519: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1520: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1521: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1522: if (!$Apache::lonhomework::scantronmode &&
1523: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1524: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1525: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1526: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1527: }
1.24 albertel 1528: }
1.159 albertel 1529: return '';
1.24 albertel 1530: }
1531:
1.25 albertel 1532: sub end_preduedate {
1.159 albertel 1533: return '';
1.24 albertel 1534: }
1535:
1.369 foxr 1536: # In all the modes where <postanswerdate> text is
1537: # displayable, all we do is eat up the text between the start/stop
1538: # tags if the conditions are not right to display it.
1.25 albertel 1539: sub start_postanswerdate {
1.326 albertel 1540: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1541: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1542: &Apache::lonnet::allowed('pav',
1543: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1544: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1545: $target eq 'tex' ) {
1.300 albertel 1546: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1547: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1548: (($target eq 'tex') && !$pav)) {
1.326 albertel 1549: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1550: }
1551: }
1552: return '';
1.24 albertel 1553: }
1554:
1.25 albertel 1555: sub end_postanswerdate {
1.159 albertel 1556: return '';
1.24 albertel 1557: }
1558:
1.25 albertel 1559: sub start_notsolved {
1.326 albertel 1560: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1561: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1562: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1563: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1564: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1565: if ($gradestatus =~ /^correct/ &&
1566: &Apache::response::show_answer()) {
1.159 albertel 1567: &Apache::lonxml::debug("skipping");
1.326 albertel 1568: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1569: }
1.24 albertel 1570: }
1.159 albertel 1571: return '';
1.24 albertel 1572: }
1573:
1.25 albertel 1574: sub end_notsolved {
1.159 albertel 1575: return '';
1.24 albertel 1576: }
1577:
1578: sub start_solved {
1.326 albertel 1579: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1580: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1581: $target eq 'tex') {
1582: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1583: if ($gradestatus !~ /^correct/ ||
1584: !&Apache::response::show_answer()) {
1.326 albertel 1585: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1586: }
1.24 albertel 1587: }
1.159 albertel 1588: return '';
1.24 albertel 1589: }
1590:
1591: sub end_solved {
1.248 albertel 1592: return '';
1593: }
1594:
1595: sub start_problemtype {
1.326 albertel 1596: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1597: my $result;
1.339 albertel 1598: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1599: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1600: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1601: if (!defined($mode)) { $mode='show'; }
1602: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1603: my $found=0;
1604: foreach my $type (split(',',$for)) {
1605: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1606: }
1607: if ($mode eq 'show' && !$found) {
1.326 albertel 1608: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1609: }
1610: if ($mode eq 'hide' && $found) {
1.326 albertel 1611: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1612: }
1613: } elsif ($target eq 'edit') {
1614: $result .=&Apache::edit::tag_start($target,$token);
1615: $result.=&Apache::edit::select_arg('Mode:','mode',
1616: [['show','Show'],
1617: ['hide','Hide']]
1618: ,$token);
1619: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1620: [ ['exam','Exam/Quiz Problem'],
1621: ['survey','Survey'],
1622: ['problem','Homework Problem'] ]
1623: ,$token);
1624: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1625: } elsif ($target eq 'modified') {
1626: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1627: $safeeval,'mode','for');
1628: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1629: }
1630: return $result;
1631: }
1632:
1633: sub end_problemtype {
1.159 albertel 1634: return '';
1.24 albertel 1635: }
1.34 albertel 1636:
1637: sub start_startouttext {
1.159 albertel 1638: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1639: my @result=(''.'');
1640: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1641: return (@result);
1.34 albertel 1642: }
1.159 albertel 1643:
1.34 albertel 1644: sub end_startouttext {
1.326 albertel 1645: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1646: my $result='';
1647: my $text='';
1648:
1649: if ($target eq 'edit') {
1.326 albertel 1650: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1651: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1652: <td>".&mt('Delete:').
1.159 albertel 1653: &Apache::edit::deletelist($target,$token)
1654: ."</td>
1.42 albertel 1655: <td>".
1.159 albertel 1656: &Apache::edit::insertlist($target,$token).
1.362 albertel 1657: '</td><td align="right" valign="top">' .
1658: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1659: &Apache::edit::end_row().
1.362 albertel 1660: &Apache::edit::start_spanning_row()."\n".
1.255 www 1661: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1662: }
1663: if ($target eq 'modified') {
1.219 albertel 1664: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1665: }
1666: if ($target eq 'tex') {
1667: $result .= '\noindent ';
1668: }
1669: return $result;
1.34 albertel 1670: }
1.159 albertel 1671:
1.34 albertel 1672: sub start_endouttext {
1.159 albertel 1673: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1674: my $result='';
1675: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1676: if ($target eq "modified") {
1677: $result='<endouttext />'.
1.377 albertel 1678: &Apache::edit::handle_insertafter('startouttext');
1679: }
1.159 albertel 1680: return $result;
1.34 albertel 1681: }
1.159 albertel 1682:
1.34 albertel 1683: sub end_endouttext {
1.159 albertel 1684: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1685: my @result=('','');
1686: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1687: return (@result);
1.34 albertel 1688: }
1.159 albertel 1689:
1.45 albertel 1690: sub delete_startouttext {
1.326 albertel 1691: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1692: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1693: my $text=$$parser['-1']->get_text("/endouttext");
1694: my $ntoken=$$parser['-1']->get_token();
1695: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1696: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1697: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1698: # they did the last time round
1699: &Apache::lonxml::increasedepth($ntoken);
1700: &Apache::lonxml::decreasedepth($ntoken);
1701: return 1;
1.193 www 1702: }
1703:
1704: sub start_simpleeditbutton {
1705: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1706: my $result='';
1.284 albertel 1707: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1708: ($target eq 'web') &&
1.330 albertel 1709: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1710: my $url=$env{'request.noversionuri'};
1.193 www 1711: $url=~s/\?.*$//;
1.367 albertel 1712: my ($symb) = &Apache::lonnet::whichuser();
1.194 www 1713: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.356 www 1714: '<a href="'.$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 1715: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1716: }
1717: return $result;
1718: }
1719:
1720: sub end_simpleeditbutton {
1721: return '';
1.45 albertel 1722: }
1.34 albertel 1723:
1.1 albertel 1724: 1;
1725: __END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>