Annotation of loncom/homework/structuretags.pm, revision 1.357
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.357 ! albertel 4: # $Id: structuretags.pm,v 1.356 2006/05/30 12:45:37 www Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.133 sakharuk 30:
1.1 albertel 31: package Apache::structuretags;
32:
33: use strict;
34: use Apache::lonnet;
1.101 sakharuk 35: use Apache::File();
1.147 www 36: use Apache::lonmenu;
1.210 albertel 37: use Apache::lonlocal;
1.231 sakharuk 38: use Apache::lonxml;
1.338 albertel 39: use Apache::lonenc();
1.267 albertel 40: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 41: use lib '/home/httpd/lib/perl/';
42: use LONCAPA;
43:
1.78 harris41 44: BEGIN {
1.248 albertel 45: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));
1.10 albertel 46: }
47:
48: sub start_web {
1.326 albertel 49: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
50: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
1.339 albertel 51: if ($target eq 'web' || $target eq 'webgrade') {
1.200 albertel 52: return $bodytext;
1.159 albertel 53: }
54: return '';
1.10 albertel 55: }
56:
57: sub end_web {
1.44 ng 58: return '';
1.10 albertel 59: }
60:
61: sub start_tex {
1.326 albertel 62: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 63: my $result='';
1.326 albertel 64: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
1.200 albertel 65: if ($target eq 'tex') {
66: return $bodytext.' ';
1.159 albertel 67: }
1.198 sakharuk 68: return $result;;
1.10 albertel 69: }
70:
71: sub end_tex {
1.44 ng 72: return '';
1.9 albertel 73: }
74:
1.48 albertel 75: sub page_start {
1.345 albertel 76: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
77: $extra_head)=@_;
1.159 albertel 78: my %found;
1.207 albertel 79: foreach my $taginside (@$tagstack) {
1.159 albertel 80: foreach my $taglookedfor ('html','body','form') {
81: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
82: }
83: }
84:
1.343 albertel 85: if ($target eq 'tex') {
86: return
87: &Apache::londefdef::start_html($target,$token,$tagstack,
88: $parstack,$parser,$safeeval);
89: }
90:
1.344 albertel 91: my %body_args;
92: if (defined($found{'html'})) {
93: $body_args{'skip_phases'}{'head'}=1;
94: } else {
1.343 albertel 95:
1.345 albertel 96: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 97:
1.336 albertel 98: my $css_href = &Apache::lonnet::EXT('resource.0.cssfile');
1.335 albertel 99: if ($css_href =~ /\S/) {
100: &Apache::lonxml::extlink($css_href);
1.343 albertel 101: $extra_head .=
1.335 albertel 102: '<link rel="stylesheet" type="text/css" href="'.$css_href.'" />';
103: }
1.327 albertel 104: if ($target eq 'edit') {
1.343 albertel 105: $extra_head.=&Apache::edit::js_change_detection().
106: "<script type=\"text/javascript\">\n".
107: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
108: &Apache::loncommon::browser_and_searcher_javascript().
109: "\n</script>\n";
110: }
1.159 albertel 111: }
1.343 albertel 112:
1.344 albertel 113: if (defined($found{'body'})) {
114: $body_args{'skip_phases'}{'body'}=1;
115: } elsif (!defined($found{'body'})
116: && $env{'request.state'} eq 'construct') {
1.343 albertel 117: if ($target eq 'web' || $target eq 'edit') {
1.344 albertel 118: # no extra args to bodytag
1.297 albertel 119: }
1.272 albertel 120: } elsif (!defined($found{'body'})) {
1.343 albertel 121: my %add_entries;
1.159 albertel 122: my $background=&Apache::lonxml::get_param('background',$parstack,
123: $safeeval);
1.343 albertel 124: if ($background ne '' ) {
125: $add_entries{'background'} = $background;
126: }
1.344 albertel 127:
1.290 albertel 128: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
129: $safeeval);
1.344 albertel 130: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
131:
132: $body_args{'bgcolor'} = $bgcolor;
133: $body_args{'no_title'} = 1;
134: $body_args{'force_register'} = 1;
135: $body_args{'add_entries'} = \%add_entries;
136: }
137:
138: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
139: \%body_args);
140:
141: if (!defined($found{'body'})
142: && $env{'request.state'} ne 'construct'
143: && ($target eq 'web' || $target eq 'webgrade')) {
144:
145: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonxml::whichuser();
146: if ($symb eq '' && !$publicuser) {
147: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
148: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
149: $page_start .= $help;
1.159 albertel 150: }
1.344 albertel 151: }
152:
153: if (!defined($found{'body'})) {
1.343 albertel 154: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 155: }
1.344 albertel 156:
1.159 albertel 157: my $form_tag_start;
158: if (!defined($found{'form'})) {
1.337 albertel 159: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.338 albertel 160: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.327 albertel 161: $form_tag_start.=$uri.'" ';
162: if ($target eq 'edit') {
163: $form_tag_start.=&Apache::edit::form_change_detection();
164: }
165: $form_tag_start.='>';
1.355 albertel 166:
167: my $symb=&Apache::lonnet::symbread();
168: if ($symb =~ /\S/) {
169: $symb=
170: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
171: $form_tag_start.=
172: '<input type="hidden" name="symb" value="'.$symb.'" />';
173: }
1.159 albertel 174: }
1.343 albertel 175: return ($page_start,$form_tag_start);
1.105 albertel 176: }
177:
1.141 matthew 178: #use Time::HiRes();
1.105 albertel 179: sub get_resource_name {
1.159 albertel 180: my ($parstack,$safeeval)=@_;
1.204 albertel 181: if (defined($Apache::lonhomework::name)) {
182: return $Apache::lonhomework::name;
183: }
1.279 albertel 184: my ($symb)=&Apache::lonxml::whichuser();
185: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 186: if ($name eq '') {
187: $name=&Apache::lonnet::EXT('resource.title');
188: if ($name eq 'con_lost') { $name = ''; }
189: }
1.204 albertel 190: if ($name!~/\S+/) {
1.284 albertel 191: $name=$env{'request.uri'};
1.205 albertel 192: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 193: }
1.159 albertel 194: $Apache::lonhomework::name=$name;
195: return $name;
1.105 albertel 196: }
197:
198: sub setup_rndseed {
1.159 albertel 199: my ($safeeval)=@_;
200: my $rndseed;
1.162 albertel 201: my ($symb)=&Apache::lonxml::whichuser();
1.333 albertel 202: if ($env{'request.state'} eq "construct"
203: || $symb eq ''
204: || $Apache::lonhomework::type eq 'practice'
205: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 206: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 207: ['rndseed']);
1.284 albertel 208: $rndseed=$env{'form.rndseed'};
1.159 albertel 209: if (!$rndseed) {
1.162 albertel 210: $rndseed=$Apache::lonhomework::history{'rndseed'};
211: if (!$rndseed) {
212: $rndseed=time;
213: }
1.284 albertel 214: $env{'form.rndseed'}=$rndseed;
1.162 albertel 215: }
1.284 albertel 216: if ($env{'form.resetdata'} eq &mt('New Problem Variation') ||
217: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 218: srand(time);
219: $rndseed=int(rand(2100000000));
1.284 albertel 220: $env{'form.rndseed'}=$rndseed;
221: delete($env{'form.resetdata'});
222: delete($env{'form.newrandomization'});
1.159 albertel 223: }
1.187 albertel 224: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 225: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 226: }
1.247 albertel 227: if ($Apache::lonhomework::history{'resource.CODE'}) {
228: $rndseed=&Apache::lonnet::rndseed();
229: }
1.221 albertel 230: if ($safeeval) {
231: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 232: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 233: }
1.159 albertel 234: }
235: return $rndseed;
1.105 albertel 236: }
237:
1.268 albertel 238: sub remember_problem_state {
239: return '
1.284 albertel 240: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
241: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
242: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 243: }
244:
1.105 albertel 245: sub problem_edit_header {
1.268 albertel 246: return '<input type="hidden" name="submitted" value="edit" />'.
247: &Apache::structuretags::remember_problem_state().'
1.210 albertel 248: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 249: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
1.328 albertel 250: <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 251: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
252: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
253: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.260 albertel 254: &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
255: .'</td></tr></table>'.
1.282 albertel 256: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 257: }
258:
259: sub problem_edit_footer {
1.210 albertel 260: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 261: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
1.348 albertel 262: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 263: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 264: }
265:
1.235 albertel 266: sub option {
267: my ($value,$name) = @_;
268: my $result ="<option value='".$value."' ";
1.284 albertel 269: if ($env{'form.'.$name} eq $value) {
1.235 albertel 270: $result.=" selected='on' ";
271: }
272: $result.='>';
273: return $result;
274: }
275:
1.105 albertel 276: sub problem_web_to_edit_header {
1.159 albertel 277: my ($rndseed)=@_;
1.313 albertel 278: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
279: if (!$Apache::lonhomework::parsing_a_task) {
280: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
281: }
282: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 283: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
284: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 285: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 286: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 287: $rndseed.'"
1.270 albertel 288: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 289: <label><input type="checkbox" name="showallfoils" ';
1.315 albertel 290: my $show_all_foils_text =
291: ($Apache::lonhomework::parsing_a_task) ?
292: &mt(' Show All Instances')
293: : &mt(' Show All Foils');
294:
1.284 albertel 295: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.315 albertel 296: $result.= ' />'.$show_all_foils_text.
1.228 www 297: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.281 albertel 298: '</label><hr />';
1.313 albertel 299: if (!$Apache::lonhomework::parsing_a_task) {
300: $result.="
1.235 albertel 301: <nobr>
302: Problem Status:
303: <select name='problemstate'>
1.270 albertel 304: <option value=''></option>
1.235 albertel 305: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
306: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
307: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
308: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
309: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
310: </select>
311: </nobr>
312: <nobr>
313: Problem Type:
314: <select name='problemtype'>
1.270 albertel 315: <option value=''></option>
1.242 albertel 316: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
317: ".&option('problem','problemtype').&mt("Homework problem")."</option>
318: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 319: </select>
320: </nobr>
321: <nobr>
322: Feedback Mode:
323: <select name='problemstatus'>
324: <option value=''></option>
1.242 albertel 325: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
326: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 327: </select>
328: </nobr>
1.242 albertel 329: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 330: <hr />";
1.313 albertel 331: my $numtoanalyze=$env{'form.numtoanalyze'};
332: if (!$numtoanalyze) { $numtoanalyze=20; }
333: $result.= '<input type="submit" name="problemmode" value='.
334: &mt('"Calculate answers').'" /> for
1.136 albertel 335: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 336: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
337: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 338: '',undef,undef,300).
1.210 albertel 339: '<hr />';
1.313 albertel 340: }
1.159 albertel 341: return $result;
1.48 albertel 342: }
343:
1.65 albertel 344: sub initialize_storage {
1.357 ! albertel 345: my ($given_symb) = @_;
1.353 albertel 346: undef(%Apache::lonhomework::results);
347: undef(%Apache::lonhomework::history);
1.357 ! albertel 348: my ($symb,$courseid,$domain,$name) =
! 349: &Apache::lonxml::whichuser($given_symb);
1.353 albertel 350:
351: # anonymous users (CODEd exams) have no data
352: if ($name eq 'anonymous'
353: && !defined($domain)) {
354: return;
355: }
356:
1.333 albertel 357: if ($env{'request.state'} eq 'construct'
358: || $symb eq ''
359: || $Apache::lonhomework::type eq 'practice') {
360:
361: my $namespace = $symb || $env{'request.uri'};
362: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
363: $env{'form.resetdata'} eq &mt('New Problem Variation') ||
364: $env{'form.newrandomization'} eq &mt('New Randomization')) {
365: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
366: &Apache::lonxml::debug("Attempt reset");
367: }
1.159 albertel 368: %Apache::lonhomework::history=
1.333 albertel 369: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 370: my ($temp)=keys %Apache::lonhomework::history ;
371: &Apache::lonxml::debug("Return message of $temp");
372: } else {
373: %Apache::lonhomework::history=
374: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
375: }
1.353 albertel 376:
1.159 albertel 377: #ignore error conditions
1.67 albertel 378: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 379: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 380: }
381:
382: # -------------------------------------------------------------finalize_storage
383: # Stores away the result has to a student's environment
384: # checks form.grade_ for specific values, other wises stores
385: # to the running users environment
1.285 raeburn 386: # Will increment totals for attempts, students, and corrects
387: # if running user has student role.
1.65 albertel 388: sub finalize_storage {
1.357 ! albertel 389: my ($given_symb) = @_;
1.159 albertel 390: my $result;
1.289 albertel 391: if (%Apache::lonhomework::results) {
1.323 albertel 392: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
393: delete(@Apache::lonhomework::results{@remove});
1.357 ! albertel 394: my ($symb,$courseid,$domain,$name) =
! 395: &Apache::lonxml::whichuser($given_symb);
1.333 albertel 396: if ($env{'request.state'} eq 'construct'
397: || $symb eq ''
398: || $Apache::lonhomework::type eq 'practice') {
399: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 400: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 401: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 402: $namespace,'',$domain,$name);
1.159 albertel 403: &Apache::lonxml::debug('Construct Store return message:'.$result);
404: } else {
405: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
406: $symb,$courseid,$domain,$name);
407: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 408: if ($env{'request.role'} =~/^st/) {
409: &store_aggregates($symb,$courseid);
410: }
1.159 albertel 411: }
1.323 albertel 412: } else {
413: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 414: }
1.159 albertel 415: return $result;
1.65 albertel 416: }
1.289 albertel 417: use Data::Dumper;
1.65 albertel 418:
1.285 raeburn 419: # -------------------------------------------------------------store_aggregates
420: # Sends hash of values to be incremented in nohist_resourcetracker.db
421: # for the course. Increments total number of attempts, unique students
422: # and corrects for each part for an instance of a problem, as appropriate.
423: sub store_aggregates {
424: my ($symb,$courseid) = @_;
1.286 albertel 425: my %aggregate;
426: my @parts;
1.288 albertel 427: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
428: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 429: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 430: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 431: push(@parts, $1);
1.285 raeburn 432: }
433: }
1.286 albertel 434: foreach my $part (@parts) {
435: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
436: eq 'APPROX_ANS' ||
437: $Apache::lonhomework::results{'resource.'.$part.'.award'}
438: eq 'EXACT_ANS') {
1.287 albertel 439: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 440: }
1.286 albertel 441: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 442: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 443: } else {
1.293 albertel 444: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 445: if ($last_reset) {
1.293 albertel 446: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 447: $aggregate{$symb."\0".$part."\0users"} = 1;
448: }
449: }
1.285 raeburn 450: }
1.287 albertel 451: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 452: }
1.292 raeburn 453: if (keys (%aggregate) > 0) {
1.289 albertel 454: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 455: $cdomain,$cname);
456: }
457: }
1.289 albertel 458:
1.65 albertel 459: sub checkout_msg {
1.211 albertel 460: my %lt=&Apache::lonlocal::texthash(
461: 'resource'=>'The resource needs to be checked out',
462: '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.',
463: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
464: 'checkout'=>'Check out Exam for Viewing',
465: 'checkout?'=>'Check out Exam?');
1.352 albertel 466: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 467: return (<<ENDCHECKOUT);
1.211 albertel 468: <h2>$lt{'resource'}</h2>
469: <p>$lt{'id_expln'}</p>
470: <font color="red">
471: <p>$lt{'warning'}</p>
1.91 albertel 472: </font>
1.352 albertel 473: <form name="checkout" method="POST" action="$uri">
1.91 albertel 474: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 475: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 476: </form>
477: ENDCHECKOUT
478: }
479:
1.252 albertel 480: sub firstaccess_msg {
1.253 albertel 481: my ($time,$symb)=@_;
482: my ($map)=&Apache::lonnet::decode_symb($symb);
483: my $foldertitle=&Apache::lonnet::gettitle($map);
484: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.352 albertel 485: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.252 albertel 486: return (<<ENDCHECKOUT);
1.253 albertel 487: <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 488: <form name="markaccess" method="POST" action="$uri">
1.252 albertel 489: <input type="hidden" name="markaccess" value="yes" />
490: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
491: </form>
492: ENDCHECKOUT
493: }
494:
1.204 albertel 495: sub init_problem_globals {
496: my ($type)=@_;
497: #initialize globals
1.308 foxr 498: # For problems, we start out in part 0 (outside a <part> tag).
499: # and part 0 is used to describe the main body of the <problem>
500: #
1.204 albertel 501: if ($type eq 'problem') {
502: $Apache::inputtags::part='0';
503: @Apache::inputtags::partlist=('0');
1.266 albertel 504: $Apache::lonhomework::problemstatus=&get_problem_status('0');
505: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 506:
1.266 albertel 507: } elsif ($type eq 'library') {
1.204 albertel 508: $Apache::inputtags::part='';
509: @Apache::inputtags::partlist=();
510: $Apache::lonhomework::problemstatus='';
1.266 albertel 511: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 512:
1.304 albertel 513: } elsif ($type eq 'Task') {
514: $Apache::inputtags::part='0';
515: @Apache::inputtags::partlist=('0');
516: $Apache::lonhomework::problemstatus='';
517: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 518: }
519: @Apache::inputtags::responselist = ();
520: @Apache::inputtags::importlist = ();
521: @Apache::inputtags::previous=();
522: @Apache::inputtags::previous_version=();
523: $Apache::structuretags::printanswer='No';
524: @Apache::structuretags::whileconds=();
525: @Apache::structuretags::whilebody=();
526: @Apache::structuretags::whileline=();
527: $Apache::lonhomework::scantronmode=0;
528: undef($Apache::lonhomework::name);
529:
530: }
531:
532: sub reset_problem_globals {
533: my ($type)=@_;
534: undef(%Apache::lonhomework::history);
535: undef(%Apache::lonhomework::results);
536: undef($Apache::inputtags::part);
1.208 albertel 537: #don't undef this, lonhomework.pm takes care of this, we use this to
538: #detect if we try to do 2 problems in one file
539: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 540: undef($Apache::lonhomework::name);
541: }
542:
1.241 albertel 543: sub set_problem_state {
1.240 albertel 544: my ($part)=@_;
1.284 albertel 545: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 546: $Apache::lonhomework::history{"resource.$part.solved"}=
547: 'correct_by_student';
548: }
549: }
550:
1.241 albertel 551: sub get_problem_status {
552: my ($part)=@_;
1.267 albertel 553: my $problem_status;
1.284 albertel 554: if ($env{'request.state'} eq 'construct' &&
555: defined($env{'form.problemstatus'})) {
556: $problem_status=$env{'form.problemstatus'};
1.267 albertel 557: } else {
558: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
559: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 560: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 561: }
562: return $problem_status;
563: }
564:
1.9 albertel 565: sub start_problem {
1.326 albertel 566: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 567:
1.311 foxr 568: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 569: if (!$Apache::lonxml::metamode) {
570: &Apache::lonxml::startredirection();
571: }
1.311 foxr 572:
1.308 foxr 573: # Problems don't nest and we don't allow more than one <problem> in
574: # a .problem file.
575: #
1.184 albertel 576: if ( $Apache::inputtags::part ne '' ||
577: $Apache::lonhomework::parsing_a_problem) {
578: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 579: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 580: return '';
581: }
1.184 albertel 582:
583: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 584: &init_problem_globals('problem');
1.166 albertel 585:
1.284 albertel 586: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 587: $Apache::lonhomework::scantronmode=1;
588: }
1.161 albertel 589:
1.246 albertel 590: &initialize_storage();
1.159 albertel 591: if ($target ne 'analyze') {
592: if ($target eq 'web') {
593: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 594: }
1.284 albertel 595: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 596: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 597: if (($env{'request.state'} eq 'construct') &&
598: defined($env{'form.problemtype'})) {
599: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 600: }
1.332 albertel 601: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 602: }
1.164 albertel 603: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 604: my $uri=$env{'request.uri'};
1.159 albertel 605: if ($uri=~/\.(\w+)$/) {
606: $Apache::lonhomework::type=$1;
607: &Apache::lonxml::debug("Using type of $1");
608: } else {
609: $Apache::lonhomework::type='problem';
610: &Apache::lonxml::debug("Using default type, problem, :$uri:");
611: }
1.87 albertel 612: }
1.301 albertel 613: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 614:
1.159 albertel 615: #added vars to the scripting enviroment
1.213 albertel 616: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 617: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 618: &Apache::run::run($expression,$safeeval);
1.159 albertel 619: my $status;
620: my $accessmsg;
621:
1.343 albertel 622: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 623: my ($result,$form_tag_start);
1.354 albertel 624: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
625: || $target eq 'edit') {
1.350 albertel 626: ($result,$form_tag_start) =
627: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
628: $name);
629: }
630:
1.284 albertel 631: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 632:
633: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
634: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
635: $target eq 'tex') {
636: #handle exam checkout
637: if ($Apache::lonhomework::type eq 'exam') {
638: my $token=
639: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 640: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 641: $token=&Apache::lonxml::maketoken();
642: $Apache::lonhomework::history{"resource.0.outtoken"}=
643: $token;
644: }
1.343 albertel 645: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 646: }
1.284 albertel 647: if ($env{'form.markaccess'}) {
1.252 albertel 648: &Apache::lonnet::set_first_access('map');
649: }
1.159 albertel 650: #handle rand seed in construction space
651: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 652: my ($symb)=&Apache::lonxml::whichuser();
1.333 albertel 653: if ($env{'request.state'} ne "construct" &&
654: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 655: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
656: $rndseed.'" />'.
657: '<input type="submit" name="resetdata"
1.334 albertel 658: value="'.&mt('New Problem Variation').'" />';
659: if (exists($env{'form.username'})) {
660: $form_tag_start.=
1.164 albertel 661: '<input type="hidden" name="username"
1.284 albertel 662: value="'.$env{'form.username'}.'" />';
1.334 albertel 663: }
1.333 albertel 664: if ($env{'request.role.adv'}) {
1.267 albertel 665: $form_tag_start.=
1.300 albertel 666: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 667: if (defined($env{'form.showallfoils'})) {
1.267 albertel 668: $form_tag_start.='checked="on"';
669: }
1.300 albertel 670: $form_tag_start.= ' />'.&mt(' Show All Foils').
671: '</label>';
1.267 albertel 672: }
673: $form_tag_start.='<hr />';
1.162 albertel 674: }
1.324 albertel 675:
676: ($status,$accessmsg,my $slot_name,my $slot) =
677: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 678: push (@Apache::inputtags::status,$status);
1.324 albertel 679:
1.159 albertel 680: my $expression='$external::datestatus="'.$status.'";';
681: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
682: &Apache::run::run($expression,$safeeval);
683: &Apache::lonxml::debug("Got $status");
1.324 albertel 684:
1.159 albertel 685: if (( $status eq 'CLOSED' ) ||
686: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 687: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 688: ( $status eq 'BANNED') ||
1.216 albertel 689: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 690: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 691: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 692: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
693: $style);
1.159 albertel 694: if ( $target eq "web" ) {
1.343 albertel 695: my $msg;
1.159 albertel 696: if ($status eq 'UNAVAILABLE') {
1.245 albertel 697: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 698: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 699: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 700: }
1.216 albertel 701: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 702: $msg.='The problem '.$accessmsg;
703: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 704: $msg.=&checkout_msg();
1.252 albertel 705: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 706: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 707: } elsif ($status eq 'NOT_IN_A_SLOT') {
708: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 709: }
710: $result.=$msg.'<br />';
711: } elsif ($target eq 'tex') {
1.332 albertel 712: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
713: : '\begin{minipage}{\textwidth}';
714: $result.='\begin{document}\noindent \vskip 1 mm '.
715: $startminipage.'\vskip 0 mm';
1.159 albertel 716: if ($status eq 'UNAVAILABLE') {
1.211 albertel 717: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 718: } else {
1.211 albertel 719: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 720: }
721: }
1.324 albertel 722: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 723: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
724: $style);
1.324 albertel 725: if ($target eq 'web') {
726: $result .= &Apache::bridgetask::proctor_validation_screen();
727: } elsif ($target eq 'grade') {
728: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
729: 'problem');
730: }
1.159 albertel 731: } elsif ($target eq 'web') {
1.343 albertel 732: $result.="\n $form_tag_start".
1.227 albertel 733: '<input type="hidden" name="submitted" value="yes" />';
734: # create a page header and exit
1.284 albertel 735: if ($env{'request.state'} eq "construct") {
736: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 737: }
738: # if we are viewing someone else preserve that info
1.284 albertel 739: if (defined $env{'form.grade_symb'}) {
1.227 albertel 740: foreach my $field ('symb','courseid','domain','username') {
741: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 742: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 743: }
744: }
745: } elsif ($target eq 'tex') {
1.319 foxr 746: $result .= 'INSERTTEXFRONTMATTERHERE';
747:
1.99 sakharuk 748: }
1.159 albertel 749: } elsif ($target eq 'edit') {
1.343 albertel 750: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 751: $Apache::lonxml::warnings_error_header=
752: &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 753: my $temp=&Apache::edit::insertlist($target,$token);
754: $result.=$temp;
755: } elsif ($target eq 'modified') {
756: $result=$token->[4];
757: $result.=&Apache::edit::handle_insert();
758: } else {
759: # page_start returned a starting result, delete it if we don't need it
760: $result = '';
1.99 sakharuk 761: }
1.159 albertel 762: return $result;
1.9 albertel 763: }
764:
765: sub end_problem {
1.159 albertel 766: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 767: my $result;
1.310 foxr 768:
1.321 albertel 769: if (!$Apache::lonxml::metamode) {
770: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 771: $Apache::lonxml::post_evaluate=0;
1.321 albertel 772: }
1.319 foxr 773:
774: if ($target eq 'tex') {
1.321 albertel 775:
776: # Figure out the front matter and replace the
777: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
778: # this in end_problem because whether or not we display due
779: # dates depends on whether due dates have already been
780: # displayed in the problem parts.
781:
1.319 foxr 782: my $frontmatter = '';
783: my $startminipage = '';
784: if (not $env{'form.problem_split'}=~/yes/) {
785: $startminipage = '\begin{minipage}{\textwidth}';
786: }
787: my $id = $Apache::inputtags::part;
788: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
789: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
790: my @packages = split /,/,$packages;
791: my $allow_print_points = 0;
792: foreach my $partial_key (@packages) {
793: if ($partial_key=~m/^part_0$/) {
794: $allow_print_points=1;
795: }
796: }
797: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
798: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
799: if (lc($env{'course.'.$env{'request.course.id'}.
800: '.disableexampointprint'}) eq 'yes') {
801: $allow_print_points=0;
802: }
803: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
804: 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 ';
805: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
806: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
807:
808: # Figure out what the due date is and if we need to print
809: # it in the problem header. We have been logging the
810: # last due date written to file.
811:
812: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
813: my $duedate = POSIX::strftime("%c",localtime($duetime));
814: my $temp_file;
815: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
816:
817: # Figure out what the last printed due date is or set it
818: # to the epoch if no duedates have been printed.
819:
820: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
821: if (-e $filename) {
822: $temp_file = Apache::File->new($filename);
823: my @due_file = <$temp_file>;
824: $due_file_content = $due_file[$#due_file];
825: chomp $due_file_content;
826: }
827:
828: # We display the due date iff it is not the same as the last
829: # duedate in problem header ($due_file_content), and
830: # none of our parts displayed a duedate.
831: #
832: my $parts_with_displayduedate;
833: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
834: $parts_with_displayduedate =
835: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
836: } else {
837: $parts_with_displayduedate = 0;
838: }
839: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
840: $temp_file = Apache::File->new('>'.$filename);
841: print $temp_file "$duetime\n";
842: if (not $env{'request.symb'} =~ m/\.page_/) {
843: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
844: $frontmatter .= $begin_doc.
845: '\textit{Due date: '.$duedate.'} '.$toc_line;
846: } else {
847: $frontmatter.= $begin_doc.$toc_line;
848: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
849: }
850: } else {
851: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
852: }
853: } else {
854: if (not $env{'request.symb'} =~ m/\.page_/) {
855: $frontmatter .= $begin_doc.$toc_line;
856: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
857: } else {
858: $frontmatter .= '\vskip 1mm \\\\\\\\';
859: }
860: }
861: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
862: }
863:
1.159 albertel 864: my $status=$Apache::inputtags::status['-1'];
865: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
866: $target eq 'tex') {
1.249 albertel 867: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 868: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 869: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
870: &Apache::inputtags::grade;
1.324 albertel 871: } elsif ($status eq 'NEEDS_CHECKIN') {
872: # no need to grade, and don't want to hide data
1.249 albertel 873: } else {
874: # move any submission data to .hidden
875: &Apache::inputtags::hidealldata($Apache::inputtags::part);
876: }
1.159 albertel 877: } elsif ( ($target eq 'web' || $target eq 'tex') &&
878: $Apache::inputtags::part eq '0' &&
1.252 albertel 879: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 880: # if part is zero, no <part>s existed, so we need show the current
881: # grading status
882: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
883: $result.= $gradestatus;
884: }
885: if (
1.284 albertel 886: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 887: ($target eq 'answer') || ($target eq 'tex')
888: ) {
1.227 albertel 889: if ($target ne 'tex' &&
1.284 albertel 890: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 891: $result.="</form>";
1.348 albertel 892: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 893: }
894: if ($target eq 'web') {
1.346 albertel 895: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 896: } elsif ($target eq 'tex') {
1.178 sakharuk 897: my $endminipage = '';
1.284 albertel 898: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 899: $endminipage = '\end{minipage}';
900: }
1.284 albertel 901: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 902: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 903: } else {
1.262 sakharuk 904: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 905: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 906: $result .= $endminipage.'\end{document} ';
907: } else {
908: $result .= '';
909: }
1.159 albertel 910: }
911: }
912: }
913: if ($target eq 'grade') {
914: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
915: &finalize_storage();
916: }
1.284 albertel 917: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
918: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 919: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 920: # normally we get it from above, but in CSTR
1.172 albertel 921: # we always show answer mode too.
1.159 albertel 922: }
923: } elsif ($target eq 'meta') {
924: if ($Apache::inputtags::part eq '0') {
1.179 albertel 925: @Apache::inputtags::response=();
1.159 albertel 926: $result=&Apache::response::mandatory_part_meta;
927: }
1.215 albertel 928: $result.=&Apache::response::meta_part_order();
1.258 albertel 929: $result.=&Apache::response::meta_response_order();
1.159 albertel 930: } elsif ($target eq 'edit') {
931: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 932: $result .= &problem_edit_footer();
1.320 albertel 933: } elsif ($target eq 'modified') {
934: $result .= $token->[2];
935: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 936: }
1.155 albertel 937:
1.284 albertel 938: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 939: &Apache::inputtags::check_for_duplicate_ids();
940: }
1.204 albertel 941:
942: &reset_problem_globals('problem');
1.159 albertel 943:
944: return $result;
1.48 albertel 945: }
946:
1.108 albertel 947:
1.48 albertel 948: sub start_library {
1.159 albertel 949: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 950: my ($result,$form_tag_start);
1.244 albertel 951: if ($$tagstack[0] eq 'library') {
952: &init_problem_globals('library');
953: $Apache::lonhomework::type='problem';
954: }
1.159 albertel 955: if ($target eq 'edit') {
1.343 albertel 956: ($result,$form_tag_start)=
957: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
958: 'Edit');
959: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 960: my $temp=&Apache::edit::insertlist($target,$token);
961: $result.=$temp;
962: } elsif ($target eq 'modified') {
963: $result=$token->[4];
964: $result.=&Apache::edit::handle_insert();
1.340 albertel 965: } elsif (($target eq 'web' || $target eq 'webgrade')
966: && $$tagstack[0] eq 'library'
967: && $env{'request.state'} eq "construct" ) {
1.159 albertel 968: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 969: ($result,$form_tag_start)=
970: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
971: $name);
1.159 albertel 972: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 973: $result.=" \n $form_tag_start".
1.159 albertel 974: '<input type="hidden" name="submitted" value="yes" />';
975: $result.=&problem_web_to_edit_header($rndseed);
976: }
977: return $result;
1.48 albertel 978: }
979:
980: sub end_library {
1.159 albertel 981: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
982: my $result='';
983: if ($target eq 'edit') {
984: $result=&problem_edit_footer();
985: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 986: $env{'request.state'} eq "construct") {
1.349 albertel 987: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 988: }
1.204 albertel 989: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 990: return $result;
1.197 www 991: }
992:
993: sub start_definetag {
1.326 albertel 994: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 995:
996: my $result;
997:
998: my $name = $token->[2]->{'name'};
1.326 albertel 999: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 1000: if ($name=~/^\//) {
1001: $result=
1002: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
1003: } else {
1004: $result=
1005: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
1006: }
1007: $skip=~s/\</\<\;/gs;
1008: $skip=~s/\>/\>\;/gs;
1009: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1010: return $result;
1011: }
1012:
1013: sub end_definetag {
1014: return '';
1.1 albertel 1015: }
1016:
1017: sub start_block {
1.201 albertel 1018: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1019:
1020: my $result;
1.1 albertel 1021:
1.339 albertel 1022: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1023: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1024: my $code = $token->[2]->{'condition'};
1.201 albertel 1025: if (defined($code)) {
1.137 albertel 1026: if (!$Apache::lonxml::default_homework_loaded) {
1027: &Apache::lonxml::default_homework_load($safeeval);
1028: }
1.131 albertel 1029: $result = &Apache::run::run($code,$safeeval);
1030: &Apache::lonxml::debug("block :$code: returned :$result:");
1031: } else {
1032: $result='1';
1033: }
1034: if ( ! $result ) {
1.201 albertel 1035: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1036: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1037: }
1038: $result='';
1039: } elsif ($target eq 'edit') {
1040: $result .=&Apache::edit::tag_start($target,$token);
1041: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1042: $token,40);
1043: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1044: } elsif ($target eq 'modified') {
1045: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1046: $safeeval,'condition');
1047: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1048: }
1.131 albertel 1049: return $result;
1.1 albertel 1050: }
1051:
1052: sub end_block {
1.167 www 1053: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1054: my $result;
1055: if ($target eq "edit") {
1056: $result.= &Apache::edit::tag_end($target,$token,'');
1057: }
1058: return $result;
1059: }
1060:
1061: sub start_languageblock {
1.201 albertel 1062: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1063:
1064: my $result;
1065:
1.339 albertel 1066: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1067: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1068: my $include = $token->[2]->{'include'};
1069: my $exclude = $token->[2]->{'exclude'};
1070: my %languages=&Apache::loncommon::display_languages();
1071: $result='1';
1072: if ($include) {
1073: $result='';
1074: foreach (split(/\,/,$include)) {
1075: if ($languages{$_}) { $result='1'; }
1076: }
1077: }
1078: if ($exclude) {
1079: foreach (split(/\,/,$exclude)) {
1080: if ($languages{$_}) { $result='0'; }
1081: }
1082: }
1083: if ( ! $result ) {
1084: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1085: $style);
1086: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1087: }
1088: $result='';
1.167 www 1089: } elsif ($target eq 'edit') {
1090: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1091: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1092: $token,40);
1.211 albertel 1093: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1094: $token,40);
1095: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1096: } elsif ($target eq 'modified') {
1097: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1098: $safeeval,'include',
1099: 'exclude');
1.167 www 1100: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1101: }
1102: return $result;
1103: }
1104:
1105: sub end_languageblock {
1.170 www 1106: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1107: my $result;
1.201 albertel 1108: if ($target eq "edit") {
1.170 www 1109: $result.= &Apache::edit::tag_end($target,$token,'');
1110: }
1111: return $result;
1112: }
1113:
1114: sub start_instructorcomment {
1.201 albertel 1115: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1116:
1117: my $result;
1118:
1.339 albertel 1119: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1120: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1121: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1122: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1123: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1124: $parser,$style);
1.170 www 1125: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1126: }
1127: $result='';
1128: } elsif ($target eq 'edit') {
1129: $result .=&Apache::edit::tag_start($target,$token);
1130: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1131: }
1132: return $result;
1133: }
1134:
1135: sub end_instructorcomment {
1.159 albertel 1136: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1137: my $result;
1138: if ($target eq "edit") {
1139: $result.= &Apache::edit::tag_end($target,$token,'');
1140: }
1141: return $result;
1.4 tsai 1142: }
1143:
1144: sub start_while {
1.326 albertel 1145: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1146:
1.160 albertel 1147: my $result;
1.339 albertel 1148: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1149: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1150: my $code = $token->[2]->{'condition'};
1.4 tsai 1151:
1.160 albertel 1152: push( @Apache::structuretags::whileconds, $code);
1153: if (!$Apache::lonxml::default_homework_loaded) {
1154: &Apache::lonxml::default_homework_load($safeeval);
1155: }
1156: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1157: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1158: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1159: push( @Apache::structuretags::whileline, $token->[5]);
1160: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1161: if ( $result ) {
1162: &Apache::lonxml::newparser($parser,\$bodytext);
1163: }
1164: } elsif ($target eq 'edit') {
1165: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1166: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1167: $token,40);
1168: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1169: } elsif ($target eq 'modified') {
1170: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1171: $safeeval,'condition');
1172: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1173: }
1.160 albertel 1174: return $result;
1.4 tsai 1175: }
1176:
1177: sub end_while {
1.159 albertel 1178: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1179: my $result;
1180:
1.339 albertel 1181: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1182: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1183: my $code = pop(@Apache::structuretags::whileconds);
1184: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1185: my $line = pop(@Apache::structuretags::whileline);
1186: my $return = &Apache::run::run($code,$safeeval);
1187: my $starttime=time;
1188: my $error=0;
1189: while ($return) {
1190: if (time-$starttime >
1191: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1192: #$return = 0; $error=1; next;
1.161 albertel 1193: }
1194: $result.=&Apache::scripttag::xmlparse($bodytext);
1195: $return = &Apache::run::run($code,$safeeval);
1196: }
1197: if ($error) {
1.270 albertel 1198: &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 1199: }
1200: } elsif ($target eq "edit") {
1201: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1202: }
1.160 albertel 1203: return $result;
1.1 albertel 1204: }
1.6 tsai 1205:
1.160 albertel 1206: # <randomlist show="1">
1.6 tsai 1207: # <tag1>..</tag1>
1208: # <tag2>..</tag2>
1209: # <tag3>..</tag3>
1.160 albertel 1210: # ...
1.6 tsai 1211: # </randomlist>
1212: sub start_randomlist {
1.326 albertel 1213: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1214: my $result;
1.339 albertel 1215: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1216: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1217: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1218: my $b_parser= HTML::LCParser->new(\$body);
1219: $b_parser->xml_mode(1);
1220: $b_parser->marked_sections(1);
1.159 albertel 1221: my $b_tok;
1222: my @randomlist;
1223: my $list_item;
1224: while($b_tok = $b_parser->get_token() ) {
1225: if($b_tok->[0] eq 'S') { # start tag
1226: # get content of the tag until matching end tag
1227: # get all text upto the matching tag
1228: # and push the content into @randomlist
1229: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1230: $b_parser);
1231: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1232: push(@randomlist,$list_item);
1233: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1234: # $list_item</b>";
1235: }
1236: if($b_tok->[0] eq 'T') { # text
1237: # what to do with text in between tags?
1238: # print "<b>TEXT $b_tok->[1]</b><br />";
1239: }
1240: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1241: # print "<b>END-TAG $b_tok->[1]</b><br />";
1242: # }
1243: }
1.303 albertel 1244: if (@randomlist) {
1245: my @idx_arr = (0 .. $#randomlist);
1246: &Apache::structuretags::shuffle(\@idx_arr);
1247: my $bodytext = '';
1248: my $show=$#randomlist;
1249: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1250: $showarg--;
1251: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1252: for(0 .. $show) {
1253: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1254: }
1255: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1256: }
1257: } elsif ($target eq 'edit' ) {
1258: $result .=&Apache::edit::tag_start($target,$token);
1259: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1260: $token,5);
1261: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1262: } elsif ($target eq 'modified' ) {
1263: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1264: $safeeval,'show');
1265: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1266: }
1267: return $result;
1.7 tsai 1268: }
1269:
1270: sub shuffle {
1271: my $a=shift;
1272: my $i;
1.303 albertel 1273: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1274: &Apache::response::pushrandomnumber();
1.159 albertel 1275: for($i=@$a;--$i;) {
1276: my $j=int(&Math::Random::random_uniform() * ($i+1));
1277: next if $i == $j;
1278: @$a[$i,$j] = @$a[$j,$i];
1279: }
1.251 albertel 1280: &Apache::response::poprandomnumber();
1.7 tsai 1281: }
1.6 tsai 1282: }
1283:
1284: sub end_randomlist {
1.159 albertel 1285: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1286: my $result;
1287: if ($target eq 'edit' ) {
1288: $result=&Apache::edit::tag_end($target,$token,
1289: 'End Randomly Parsed Block');
1290: }
1291: return $result;
1.6 tsai 1292: }
1293:
1.283 albertel 1294: sub ordered_show_check {
1295: my $last_part=$Apache::inputtags::partlist[-2];
1296: my $in_order=
1297: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1298: my $in_order_show=1;
1299: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1300: $in_order_show=&Apache::response::check_status($last_part);
1301: }
1302: return $in_order_show;
1303: }
1304:
1.11 albertel 1305: sub start_part {
1.326 albertel 1306: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1307: if (!$Apache::lonxml::metamode) {
1308: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1309: # duedates.
1310: }
1.159 albertel 1311: my $result='';
1312: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1313: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1314: $Apache::inputtags::part=$id;
1.177 albertel 1315: push(@Apache::inputtags::partlist,$id);
1316: @Apache::inputtags::response=();
1.159 albertel 1317: @Apache::inputtags::previous=();
1318: @Apache::inputtags::previous_version=();
1.241 albertel 1319: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1320: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1321: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1322: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1323: my $in_order_show=&ordered_show_check();
1.214 albertel 1324: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1325: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1326: &Apache::run::run($expression,$safeeval);
1.159 albertel 1327:
1328: if ($target eq 'meta') {
1.224 www 1329: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1330: return &Apache::response::mandatory_part_meta.
1331: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1332: } elsif ($target eq 'web' || $target eq 'grade' ||
1333: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1334: if ($hidden || !$in_order_show) {
1.326 albertel 1335: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1336: } else {
1337: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1338: push (@Apache::inputtags::status,$status);
1339: my $expression='$external::datestatus="'.$status.'";';
1340: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1341: &Apache::run::run($expression,$safeeval);
1.284 albertel 1342: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1343: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1344: }
1.216 albertel 1345: if (( $status eq 'CLOSED' ) ||
1346: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1347: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1348: ( $status eq 'BANNED') ||
1349: ( $status eq 'UNAVAILABLE') ||
1350: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1351: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1352: $style);
1.159 albertel 1353: if ( $target eq "web" ) {
1.211 albertel 1354: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1355: } elsif ( $target eq 'tex' ) {
1.284 albertel 1356: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1357: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1358: } else {
1.211 albertel 1359: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1360: }
1.159 albertel 1361: }
1362: } else {
1363: if ($target eq 'tex') {
1.284 albertel 1364: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1365: if ($$tagstack[-2] eq 'td') {
1366: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1367: } else {
1368: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1369: }
1.195 sakharuk 1370: }
1.159 albertel 1371: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1372: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1373: my @allkeys = split /,/,$allkeys;
1374: my $allow_print_points = 0;
1375: foreach my $partial_key (@allkeys) {
1.230 albertel 1376: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1377: if ($1 ne '0') {$allow_print_points=1;}
1378: }
1379: }
1.275 albertel 1380: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1381: if (defined($maxtries) && $maxtries < 0) {
1382: $allow_print_points=0;
1383: }
1.302 albertel 1384: if (lc($env{'course.'.$env{'request.course.id'}.
1385: '.disableexampointprint'}) eq 'yes') {
1386: $allow_print_points=0;
1387: }
1.222 sakharuk 1388: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1389: } elsif ($target eq 'web') {
1.356 www 1390: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1391: }
1392: }
1393: }
1394: } elsif ($target eq 'edit') {
1395: $result.=&Apache::edit::tag_start($target,$token);
1396: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1397: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1398: ' '.
1399: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1400: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1401: } elsif ($target eq 'modified') {
1402: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1403: $safeeval,'id','display');
1.159 albertel 1404: if ($constructtag) {
1.225 albertel 1405: #limiting ids to only letters numbers, and space
1.224 www 1406: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1407: $result = &Apache::edit::rebuild_tag($token);
1408: $result.=&Apache::edit::handle_insert();
1409: }
1410: }
1411: return $result;
1.11 albertel 1412: }
1413:
1414: sub end_part {
1.159 albertel 1415: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1416: &Apache::lonxml::debug("in end_part $target ");
1417: my $status=$Apache::inputtags::status['-1'];
1418: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1419: my $in_order_show=&ordered_show_check();
1.321 albertel 1420: my $result;
1421: if (!$Apache::lonxml::metamode) {
1422: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1423: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1424: }
1.312 albertel 1425: if ($target eq 'grade') {
1.249 albertel 1426: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1427: !$hidden && $in_order_show) {
1.311 foxr 1428: $result.=&Apache::inputtags::grade;
1.249 albertel 1429: } else {
1430: # move any submission data to .hidden
1431: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1432: }
1.283 albertel 1433: } elsif (($target eq 'web' || $target eq 'tex') &&
1434: !$hidden && $in_order_show) {
1.159 albertel 1435: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1436: $target);
1.212 albertel 1437: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1438: $gradestatus='';
1439: }
1.311 foxr 1440: $result.=$gradestatus;
1.265 sakharuk 1441: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1442: } elsif ($target eq 'edit') {
1.311 foxr 1443: $result.=&Apache::edit::end_table();
1.322 albertel 1444: } elsif ($target eq 'modified') {
1445: $result .= $token->[2];
1446: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 1447: }
1448: pop @Apache::inputtags::status;
1449: $Apache::inputtags::part='';
1.295 albertel 1450: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1451: return $result;
1.11 albertel 1452: }
1.1 albertel 1453:
1.25 albertel 1454: sub start_preduedate {
1.326 albertel 1455: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1456: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1457: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1458: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1459: if (!$Apache::lonhomework::scantronmode &&
1460: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1461: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1462: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1463: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1464: }
1.24 albertel 1465: }
1.159 albertel 1466: return '';
1.24 albertel 1467: }
1468:
1.25 albertel 1469: sub end_preduedate {
1.159 albertel 1470: return '';
1.24 albertel 1471: }
1472:
1.25 albertel 1473: sub start_postanswerdate {
1.326 albertel 1474: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1475: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade') {
1.300 albertel 1476: if ($Apache::lonhomework::scantronmode ||
1477: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.326 albertel 1478: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1479: }
1480: } elsif ($target eq 'tex') {
1.326 albertel 1481: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1482: }
1483: return '';
1.24 albertel 1484: }
1485:
1.25 albertel 1486: sub end_postanswerdate {
1.159 albertel 1487: return '';
1.24 albertel 1488: }
1489:
1.25 albertel 1490: sub start_notsolved {
1.326 albertel 1491: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1492: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1493: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1494: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1495: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1496: if ($gradestatus =~ /^correct/ &&
1497: &Apache::response::show_answer()) {
1.159 albertel 1498: &Apache::lonxml::debug("skipping");
1.326 albertel 1499: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1500: }
1.24 albertel 1501: }
1.159 albertel 1502: return '';
1.24 albertel 1503: }
1504:
1.25 albertel 1505: sub end_notsolved {
1.159 albertel 1506: return '';
1.24 albertel 1507: }
1508:
1509: sub start_solved {
1.326 albertel 1510: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1511: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1512: $target eq 'tex') {
1513: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1514: if ($gradestatus !~ /^correct/ ||
1515: !&Apache::response::show_answer()) {
1.326 albertel 1516: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1517: }
1.24 albertel 1518: }
1.159 albertel 1519: return '';
1.24 albertel 1520: }
1521:
1522: sub end_solved {
1.248 albertel 1523: return '';
1524: }
1525:
1526: sub start_problemtype {
1.326 albertel 1527: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1528: my $result;
1.339 albertel 1529: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1530: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1531: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1532: if (!defined($mode)) { $mode='show'; }
1533: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1534: my $found=0;
1535: foreach my $type (split(',',$for)) {
1536: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1537: }
1538: if ($mode eq 'show' && !$found) {
1.326 albertel 1539: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1540: }
1541: if ($mode eq 'hide' && $found) {
1.326 albertel 1542: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1543: }
1544: } elsif ($target eq 'edit') {
1545: $result .=&Apache::edit::tag_start($target,$token);
1546: $result.=&Apache::edit::select_arg('Mode:','mode',
1547: [['show','Show'],
1548: ['hide','Hide']]
1549: ,$token);
1550: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1551: [ ['exam','Exam/Quiz Problem'],
1552: ['survey','Survey'],
1553: ['problem','Homework Problem'] ]
1554: ,$token);
1555: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1556: } elsif ($target eq 'modified') {
1557: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1558: $safeeval,'mode','for');
1559: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1560: }
1561: return $result;
1562: }
1563:
1564: sub end_problemtype {
1.159 albertel 1565: return '';
1.24 albertel 1566: }
1.34 albertel 1567:
1568: sub start_startouttext {
1.159 albertel 1569: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1570: my @result=(''.'');
1571: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1572: return (@result);
1.34 albertel 1573: }
1.159 albertel 1574:
1.34 albertel 1575: sub end_startouttext {
1.326 albertel 1576: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1577: my $result='';
1578: my $text='';
1579:
1580: if ($target eq 'edit') {
1.326 albertel 1581: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1582: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1583: <td>".&mt('Delete:').
1.159 albertel 1584: &Apache::edit::deletelist($target,$token)
1585: ."</td>
1.42 albertel 1586: <td>".
1.159 albertel 1587: &Apache::edit::insertlist($target,$token).
1588: &Apache::edit::end_row().
1589: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1590: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1591: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1592: }
1593: if ($target eq 'modified') {
1.219 albertel 1594: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1595: }
1596: if ($target eq 'tex') {
1597: $result .= '\noindent ';
1598: }
1599: return $result;
1.34 albertel 1600: }
1.159 albertel 1601:
1.34 albertel 1602: sub start_endouttext {
1.159 albertel 1603: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1604: my $result='';
1605: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1606: if ($target eq "modified") {
1607: $result='<endouttext />'.
1608: &Apache::edit::handle_insertafter('startouttext'); }
1609: return $result;
1.34 albertel 1610: }
1.159 albertel 1611:
1.34 albertel 1612: sub end_endouttext {
1.159 albertel 1613: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1614: my @result=('','');
1615: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1616: return (@result);
1.34 albertel 1617: }
1.159 albertel 1618:
1.45 albertel 1619: sub delete_startouttext {
1.326 albertel 1620: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1621: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1622: my $text=$$parser['-1']->get_text("/endouttext");
1623: my $ntoken=$$parser['-1']->get_token();
1624: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1625: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1626: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1627: # they did the last time round
1628: &Apache::lonxml::increasedepth($ntoken);
1629: &Apache::lonxml::decreasedepth($ntoken);
1630: return 1;
1.193 www 1631: }
1632:
1633: sub start_simpleeditbutton {
1634: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1635: my $result='';
1.284 albertel 1636: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1637: ($target eq 'web') &&
1.330 albertel 1638: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1639: my $url=$env{'request.noversionuri'};
1.193 www 1640: $url=~s/\?.*$//;
1.278 albertel 1641: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1642: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.356 www 1643: '<a href="'.$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 1644: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1645: }
1646: return $result;
1647: }
1648:
1649: sub end_simpleeditbutton {
1650: return '';
1.45 albertel 1651: }
1.34 albertel 1652:
1.1 albertel 1653: 1;
1654: __END__
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