Annotation of loncom/homework/structuretags.pm, revision 1.346
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.346 ! albertel 4: # $Id: structuretags.pm,v 1.345 2006/04/14 21:42:05 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 );
1.78 harris41 41: BEGIN {
1.248 albertel 42: &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 43: }
44:
45: sub start_web {
1.326 albertel 46: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
47: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
1.339 albertel 48: if ($target eq 'web' || $target eq 'webgrade') {
1.200 albertel 49: return $bodytext;
1.159 albertel 50: }
51: return '';
1.10 albertel 52: }
53:
54: sub end_web {
1.44 ng 55: return '';
1.10 albertel 56: }
57:
58: sub start_tex {
1.326 albertel 59: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 60: my $result='';
1.326 albertel 61: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
1.200 albertel 62: if ($target eq 'tex') {
63: return $bodytext.' ';
1.159 albertel 64: }
1.198 sakharuk 65: return $result;;
1.10 albertel 66: }
67:
68: sub end_tex {
1.44 ng 69: return '';
1.9 albertel 70: }
71:
1.48 albertel 72: sub page_start {
1.345 albertel 73: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
74: $extra_head)=@_;
1.159 albertel 75: my %found;
1.207 albertel 76: foreach my $taginside (@$tagstack) {
1.159 albertel 77: foreach my $taglookedfor ('html','body','form') {
78: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
79: }
80: }
81:
1.343 albertel 82:
83: if ($target eq 'tex') {
84: return
85: &Apache::londefdef::start_html($target,$token,$tagstack,
86: $parstack,$parser,$safeeval);
87: }
88:
1.344 albertel 89: my %body_args;
90: if (defined($found{'html'})) {
91: $body_args{'skip_phases'}{'head'}=1;
92: } else {
1.343 albertel 93:
1.345 albertel 94: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 95:
1.336 albertel 96: my $css_href = &Apache::lonnet::EXT('resource.0.cssfile');
1.335 albertel 97: if ($css_href =~ /\S/) {
98: &Apache::lonxml::extlink($css_href);
1.343 albertel 99: $extra_head .=
1.335 albertel 100: '<link rel="stylesheet" type="text/css" href="'.$css_href.'" />';
101: }
1.327 albertel 102: if ($target eq 'edit') {
1.343 albertel 103: $extra_head.=&Apache::edit::js_change_detection().
104: "<script type=\"text/javascript\">\n".
105: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
106: &Apache::loncommon::browser_and_searcher_javascript().
107: "\n</script>\n";
108: }
1.159 albertel 109: }
1.343 albertel 110:
1.344 albertel 111: if (defined($found{'body'})) {
112: $body_args{'skip_phases'}{'body'}=1;
113: } elsif (!defined($found{'body'})
114: && $env{'request.state'} eq 'construct') {
1.343 albertel 115: if ($target eq 'web' || $target eq 'edit') {
1.344 albertel 116: # no extra args to bodytag
1.297 albertel 117: }
1.272 albertel 118: } elsif (!defined($found{'body'})) {
1.343 albertel 119: my %add_entries;
1.159 albertel 120: my $background=&Apache::lonxml::get_param('background',$parstack,
121: $safeeval);
1.343 albertel 122: if ($background ne '' ) {
123: $add_entries{'background'} = $background;
124: }
1.344 albertel 125:
1.290 albertel 126: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
127: $safeeval);
1.344 albertel 128: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
129:
130: $body_args{'bgcolor'} = $bgcolor;
131: $body_args{'no_title'} = 1;
132: $body_args{'force_register'} = 1;
133: $body_args{'add_entries'} = \%add_entries;
134: }
135:
136: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
137: \%body_args);
138:
139: if (!defined($found{'body'})
140: && $env{'request.state'} ne 'construct'
141: && ($target eq 'web' || $target eq 'webgrade')) {
142:
143: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonxml::whichuser();
144: if ($symb eq '' && !$publicuser) {
145: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
146: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
147: $page_start .= $help;
1.159 albertel 148: }
1.344 albertel 149: }
150:
151: if (!defined($found{'body'})) {
1.343 albertel 152: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 153: }
1.344 albertel 154:
1.159 albertel 155: my $form_tag_start;
156: if (!defined($found{'form'})) {
1.337 albertel 157: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.338 albertel 158: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.327 albertel 159: $form_tag_start.=$uri.'" ';
160: if ($target eq 'edit') {
161: $form_tag_start.=&Apache::edit::form_change_detection();
162: }
163: $form_tag_start.='>';
1.159 albertel 164: }
1.344 albertel 165:
1.343 albertel 166: return ($page_start,$form_tag_start);
1.105 albertel 167: }
168:
1.141 matthew 169: #use Time::HiRes();
1.105 albertel 170: sub get_resource_name {
1.159 albertel 171: my ($parstack,$safeeval)=@_;
1.204 albertel 172: if (defined($Apache::lonhomework::name)) {
173: return $Apache::lonhomework::name;
174: }
1.279 albertel 175: my ($symb)=&Apache::lonxml::whichuser();
176: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 177: if ($name eq '') {
178: $name=&Apache::lonnet::EXT('resource.title');
179: if ($name eq 'con_lost') { $name = ''; }
180: }
1.204 albertel 181: if ($name!~/\S+/) {
1.284 albertel 182: $name=$env{'request.uri'};
1.205 albertel 183: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 184: }
1.159 albertel 185: $Apache::lonhomework::name=$name;
186: return $name;
1.105 albertel 187: }
188:
189: sub setup_rndseed {
1.159 albertel 190: my ($safeeval)=@_;
191: my $rndseed;
1.162 albertel 192: my ($symb)=&Apache::lonxml::whichuser();
1.333 albertel 193: if ($env{'request.state'} eq "construct"
194: || $symb eq ''
195: || $Apache::lonhomework::type eq 'practice'
196: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 197: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 198: ['rndseed']);
1.284 albertel 199: $rndseed=$env{'form.rndseed'};
1.159 albertel 200: if (!$rndseed) {
1.162 albertel 201: $rndseed=$Apache::lonhomework::history{'rndseed'};
202: if (!$rndseed) {
203: $rndseed=time;
204: }
1.284 albertel 205: $env{'form.rndseed'}=$rndseed;
1.162 albertel 206: }
1.284 albertel 207: if ($env{'form.resetdata'} eq &mt('New Problem Variation') ||
208: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 209: srand(time);
210: $rndseed=int(rand(2100000000));
1.284 albertel 211: $env{'form.rndseed'}=$rndseed;
212: delete($env{'form.resetdata'});
213: delete($env{'form.newrandomization'});
1.159 albertel 214: }
1.187 albertel 215: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 216: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 217: }
1.247 albertel 218: if ($Apache::lonhomework::history{'resource.CODE'}) {
219: $rndseed=&Apache::lonnet::rndseed();
220: }
1.221 albertel 221: if ($safeeval) {
222: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 223: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 224: }
1.159 albertel 225: }
226: return $rndseed;
1.105 albertel 227: }
228:
1.268 albertel 229: sub remember_problem_state {
230: return '
1.284 albertel 231: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
232: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
233: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 234: }
235:
1.105 albertel 236: sub problem_edit_header {
1.268 albertel 237: return '<input type="hidden" name="submitted" value="edit" />'.
238: &Apache::structuretags::remember_problem_state().'
1.210 albertel 239: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 240: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
1.328 albertel 241: <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 242: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
243: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
244: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.260 albertel 245: &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
246: .'</td></tr></table>'.
1.282 albertel 247: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 248: }
249:
250: sub problem_edit_footer {
1.210 albertel 251: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 252: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
253: &Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).
1.342 albertel 254: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 255: }
256:
1.235 albertel 257: sub option {
258: my ($value,$name) = @_;
259: my $result ="<option value='".$value."' ";
1.284 albertel 260: if ($env{'form.'.$name} eq $value) {
1.235 albertel 261: $result.=" selected='on' ";
262: }
263: $result.='>';
264: return $result;
265: }
266:
1.105 albertel 267: sub problem_web_to_edit_header {
1.159 albertel 268: my ($rndseed)=@_;
1.313 albertel 269: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
270: if (!$Apache::lonhomework::parsing_a_task) {
271: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
272: }
273: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 274: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
275: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 276: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 277: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 278: $rndseed.'"
1.270 albertel 279: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 280: <label><input type="checkbox" name="showallfoils" ';
1.315 albertel 281: my $show_all_foils_text =
282: ($Apache::lonhomework::parsing_a_task) ?
283: &mt(' Show All Instances')
284: : &mt(' Show All Foils');
285:
1.284 albertel 286: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.315 albertel 287: $result.= ' />'.$show_all_foils_text.
1.228 www 288: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.281 albertel 289: '</label><hr />';
1.313 albertel 290: if (!$Apache::lonhomework::parsing_a_task) {
291: $result.="
1.235 albertel 292: <nobr>
293: Problem Status:
294: <select name='problemstate'>
1.270 albertel 295: <option value=''></option>
1.235 albertel 296: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
297: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
298: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
299: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
300: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
301: </select>
302: </nobr>
303: <nobr>
304: Problem Type:
305: <select name='problemtype'>
1.270 albertel 306: <option value=''></option>
1.242 albertel 307: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
308: ".&option('problem','problemtype').&mt("Homework problem")."</option>
309: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 310: </select>
311: </nobr>
312: <nobr>
313: Feedback Mode:
314: <select name='problemstatus'>
315: <option value=''></option>
1.242 albertel 316: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
317: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 318: </select>
319: </nobr>
1.242 albertel 320: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 321: <hr />";
1.313 albertel 322: my $numtoanalyze=$env{'form.numtoanalyze'};
323: if (!$numtoanalyze) { $numtoanalyze=20; }
324: $result.= '<input type="submit" name="problemmode" value='.
325: &mt('"Calculate answers').'" /> for
1.136 albertel 326: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 327: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
328: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 329: '',undef,undef,300).
1.210 albertel 330: '<hr />';
1.313 albertel 331: }
1.159 albertel 332: return $result;
1.48 albertel 333: }
334:
1.65 albertel 335: sub initialize_storage {
1.159 albertel 336: %Apache::lonhomework::results=();
1.162 albertel 337: %Apache::lonhomework::history=();
1.159 albertel 338: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.333 albertel 339: if ($env{'request.state'} eq 'construct'
340: || $symb eq ''
341: || $Apache::lonhomework::type eq 'practice') {
342:
343: my $namespace = $symb || $env{'request.uri'};
344: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
345: $env{'form.resetdata'} eq &mt('New Problem Variation') ||
346: $env{'form.newrandomization'} eq &mt('New Randomization')) {
347: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
348: &Apache::lonxml::debug("Attempt reset");
349: }
1.159 albertel 350: %Apache::lonhomework::history=
1.333 albertel 351: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 352: my ($temp)=keys %Apache::lonhomework::history ;
353: &Apache::lonxml::debug("Return message of $temp");
354: } else {
355: %Apache::lonhomework::history=
356: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
357: }
358: #ignore error conditions
1.67 albertel 359: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 360: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 361: }
362:
363: # -------------------------------------------------------------finalize_storage
364: # Stores away the result has to a student's environment
365: # checks form.grade_ for specific values, other wises stores
366: # to the running users environment
1.285 raeburn 367: # Will increment totals for attempts, students, and corrects
368: # if running user has student role.
1.65 albertel 369: sub finalize_storage {
1.159 albertel 370: my $result;
1.289 albertel 371: if (%Apache::lonhomework::results) {
1.323 albertel 372: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
373: delete(@Apache::lonhomework::results{@remove});
1.159 albertel 374: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.333 albertel 375: if ($env{'request.state'} eq 'construct'
376: || $symb eq ''
377: || $Apache::lonhomework::type eq 'practice') {
378: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 379: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 380: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 381: $namespace,'',$domain,$name);
1.159 albertel 382: &Apache::lonxml::debug('Construct Store return message:'.$result);
383: } else {
384: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
385: $symb,$courseid,$domain,$name);
386: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 387: if ($env{'request.role'} =~/^st/) {
388: &store_aggregates($symb,$courseid);
389: }
1.159 albertel 390: }
1.323 albertel 391: } else {
392: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 393: }
1.159 albertel 394: return $result;
1.65 albertel 395: }
1.289 albertel 396: use Data::Dumper;
1.65 albertel 397:
1.285 raeburn 398: # -------------------------------------------------------------store_aggregates
399: # Sends hash of values to be incremented in nohist_resourcetracker.db
400: # for the course. Increments total number of attempts, unique students
401: # and corrects for each part for an instance of a problem, as appropriate.
402: sub store_aggregates {
403: my ($symb,$courseid) = @_;
1.286 albertel 404: my %aggregate;
405: my @parts;
1.288 albertel 406: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
407: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 408: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 409: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 410: push(@parts, $1);
1.285 raeburn 411: }
412: }
1.286 albertel 413: foreach my $part (@parts) {
414: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
415: eq 'APPROX_ANS' ||
416: $Apache::lonhomework::results{'resource.'.$part.'.award'}
417: eq 'EXACT_ANS') {
1.287 albertel 418: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 419: }
1.286 albertel 420: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 421: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 422: } else {
1.293 albertel 423: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 424: if ($last_reset) {
1.293 albertel 425: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 426: $aggregate{$symb."\0".$part."\0users"} = 1;
427: }
428: }
1.285 raeburn 429: }
1.287 albertel 430: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 431: }
1.292 raeburn 432: if (keys (%aggregate) > 0) {
1.289 albertel 433: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 434: $cdomain,$cname);
435: }
436: }
1.289 albertel 437:
1.65 albertel 438: sub checkout_msg {
1.211 albertel 439: my %lt=&Apache::lonlocal::texthash(
440: 'resource'=>'The resource needs to be checked out',
441: '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.',
442: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
443: 'checkout'=>'Check out Exam for Viewing',
444: 'checkout?'=>'Check out Exam?');
1.159 albertel 445: return (<<ENDCHECKOUT);
1.211 albertel 446: <h2>$lt{'resource'}</h2>
447: <p>$lt{'id_expln'}</p>
448: <font color="red">
449: <p>$lt{'warning'}</p>
1.91 albertel 450: </font>
1.284 albertel 451: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.91 albertel 452: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 453: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 454: </form>
455: ENDCHECKOUT
456: }
457:
1.252 albertel 458: sub firstaccess_msg {
1.253 albertel 459: my ($time,$symb)=@_;
460: my ($map)=&Apache::lonnet::decode_symb($symb);
461: my $foldertitle=&Apache::lonnet::gettitle($map);
462: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.252 albertel 463: return (<<ENDCHECKOUT);
1.253 albertel 464: <h2>The resources in "$foldertitle" are open for a limited time. Once you click the 'Show Resource' button below you have $time to complete all resources "$foldertitle".</h2>
1.284 albertel 465: <form name="markaccess" method="POST" action="$env{'request.uri'}">
1.252 albertel 466: <input type="hidden" name="markaccess" value="yes" />
467: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
468: </form>
469: ENDCHECKOUT
470: }
471:
1.204 albertel 472: sub init_problem_globals {
473: my ($type)=@_;
474: #initialize globals
1.308 foxr 475: # For problems, we start out in part 0 (outside a <part> tag).
476: # and part 0 is used to describe the main body of the <problem>
477: #
1.204 albertel 478: if ($type eq 'problem') {
479: $Apache::inputtags::part='0';
480: @Apache::inputtags::partlist=('0');
1.266 albertel 481: $Apache::lonhomework::problemstatus=&get_problem_status('0');
482: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 483:
1.266 albertel 484: } elsif ($type eq 'library') {
1.204 albertel 485: $Apache::inputtags::part='';
486: @Apache::inputtags::partlist=();
487: $Apache::lonhomework::problemstatus='';
1.266 albertel 488: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 489:
1.304 albertel 490: } elsif ($type eq 'Task') {
491: $Apache::inputtags::part='0';
492: @Apache::inputtags::partlist=('0');
493: $Apache::lonhomework::problemstatus='';
494: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 495: }
496: @Apache::inputtags::responselist = ();
497: @Apache::inputtags::importlist = ();
498: @Apache::inputtags::previous=();
499: @Apache::inputtags::previous_version=();
500: $Apache::structuretags::printanswer='No';
501: @Apache::structuretags::whileconds=();
502: @Apache::structuretags::whilebody=();
503: @Apache::structuretags::whileline=();
504: $Apache::lonhomework::scantronmode=0;
505: undef($Apache::lonhomework::name);
506:
507: }
508:
509: sub reset_problem_globals {
510: my ($type)=@_;
511: undef(%Apache::lonhomework::history);
512: undef(%Apache::lonhomework::results);
513: undef($Apache::inputtags::part);
1.208 albertel 514: #don't undef this, lonhomework.pm takes care of this, we use this to
515: #detect if we try to do 2 problems in one file
516: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 517: undef($Apache::lonhomework::name);
518: }
519:
1.241 albertel 520: sub set_problem_state {
1.240 albertel 521: my ($part)=@_;
1.284 albertel 522: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 523: $Apache::lonhomework::history{"resource.$part.solved"}=
524: 'correct_by_student';
525: }
526: }
527:
1.241 albertel 528: sub get_problem_status {
529: my ($part)=@_;
1.267 albertel 530: my $problem_status;
1.284 albertel 531: if ($env{'request.state'} eq 'construct' &&
532: defined($env{'form.problemstatus'})) {
533: $problem_status=$env{'form.problemstatus'};
1.267 albertel 534: } else {
535: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
536: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 537: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 538: }
539: return $problem_status;
540: }
541:
1.9 albertel 542: sub start_problem {
1.326 albertel 543: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 544:
1.311 foxr 545: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 546: if (!$Apache::lonxml::metamode) {
547: &Apache::lonxml::startredirection();
548: }
1.311 foxr 549:
1.308 foxr 550: # Problems don't nest and we don't allow more than one <problem> in
551: # a .problem file.
552: #
1.184 albertel 553: if ( $Apache::inputtags::part ne '' ||
554: $Apache::lonhomework::parsing_a_problem) {
555: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 556: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 557: return '';
558: }
1.184 albertel 559:
560: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 561: &init_problem_globals('problem');
1.166 albertel 562:
1.284 albertel 563: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 564: $Apache::lonhomework::scantronmode=1;
565: }
1.161 albertel 566:
1.246 albertel 567: &initialize_storage();
1.159 albertel 568: if ($target ne 'analyze') {
569: if ($target eq 'web') {
570: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 571: }
1.284 albertel 572: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 573: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 574: if (($env{'request.state'} eq 'construct') &&
575: defined($env{'form.problemtype'})) {
576: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 577: }
1.332 albertel 578: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 579: }
1.164 albertel 580: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 581: my $uri=$env{'request.uri'};
1.159 albertel 582: if ($uri=~/\.(\w+)$/) {
583: $Apache::lonhomework::type=$1;
584: &Apache::lonxml::debug("Using type of $1");
585: } else {
586: $Apache::lonhomework::type='problem';
587: &Apache::lonxml::debug("Using default type, problem, :$uri:");
588: }
1.87 albertel 589: }
1.301 albertel 590: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 591:
1.159 albertel 592: #added vars to the scripting enviroment
1.213 albertel 593: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 594: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 595: &Apache::run::run($expression,$safeeval);
1.159 albertel 596: my $status;
597: my $accessmsg;
598:
1.343 albertel 599: my $name= &get_resource_name($parstack,$safeeval);
600: my ($result,$form_tag_start)=
601: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
602: $name);
1.284 albertel 603: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 604:
605: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
606: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
607: $target eq 'tex') {
608: #handle exam checkout
609: if ($Apache::lonhomework::type eq 'exam') {
610: my $token=
611: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 612: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 613: $token=&Apache::lonxml::maketoken();
614: $Apache::lonhomework::history{"resource.0.outtoken"}=
615: $token;
616: }
1.343 albertel 617: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 618: }
1.284 albertel 619: if ($env{'form.markaccess'}) {
1.252 albertel 620: &Apache::lonnet::set_first_access('map');
621: }
1.159 albertel 622: #handle rand seed in construction space
623: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 624: my ($symb)=&Apache::lonxml::whichuser();
1.333 albertel 625: if ($env{'request.state'} ne "construct" &&
626: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 627: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
628: $rndseed.'" />'.
629: '<input type="submit" name="resetdata"
1.334 albertel 630: value="'.&mt('New Problem Variation').'" />';
631: if (exists($env{'form.username'})) {
632: $form_tag_start.=
1.164 albertel 633: '<input type="hidden" name="username"
1.284 albertel 634: value="'.$env{'form.username'}.'" />';
1.334 albertel 635: }
1.333 albertel 636: if ($env{'request.role.adv'}) {
1.267 albertel 637: $form_tag_start.=
1.300 albertel 638: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 639: if (defined($env{'form.showallfoils'})) {
1.267 albertel 640: $form_tag_start.='checked="on"';
641: }
1.300 albertel 642: $form_tag_start.= ' />'.&mt(' Show All Foils').
643: '</label>';
1.267 albertel 644: }
645: $form_tag_start.='<hr />';
1.162 albertel 646: }
1.324 albertel 647:
648: ($status,$accessmsg,my $slot_name,my $slot) =
649: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 650: push (@Apache::inputtags::status,$status);
1.324 albertel 651:
1.159 albertel 652: my $expression='$external::datestatus="'.$status.'";';
653: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
654: &Apache::run::run($expression,$safeeval);
655: &Apache::lonxml::debug("Got $status");
1.324 albertel 656:
1.159 albertel 657: if (( $status eq 'CLOSED' ) ||
658: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 659: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 660: ( $status eq 'BANNED') ||
1.216 albertel 661: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 662: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 663: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 664: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
665: $style);
1.159 albertel 666: if ( $target eq "web" ) {
1.343 albertel 667: my $msg;
1.159 albertel 668: if ($status eq 'UNAVAILABLE') {
1.245 albertel 669: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 670: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 671: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 672: }
1.216 albertel 673: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 674: $msg.='The problem '.$accessmsg;
675: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 676: $msg.=&checkout_msg();
1.252 albertel 677: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 678: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 679: } elsif ($status eq 'NOT_IN_A_SLOT') {
680: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 681: }
682: $result.=$msg.'<br />';
683: } elsif ($target eq 'tex') {
1.332 albertel 684: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
685: : '\begin{minipage}{\textwidth}';
686: $result.='\begin{document}\noindent \vskip 1 mm '.
687: $startminipage.'\vskip 0 mm';
1.159 albertel 688: if ($status eq 'UNAVAILABLE') {
1.211 albertel 689: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 690: } else {
1.211 albertel 691: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 692: }
693: }
1.324 albertel 694: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 695: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
696: $style);
1.324 albertel 697: if ($target eq 'web') {
698: $result .= &Apache::bridgetask::proctor_validation_screen();
699: } elsif ($target eq 'grade') {
700: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
701: 'problem');
702: }
1.159 albertel 703: } elsif ($target eq 'web') {
1.343 albertel 704: $result.="\n $form_tag_start".
1.227 albertel 705: '<input type="hidden" name="submitted" value="yes" />';
706: # create a page header and exit
1.284 albertel 707: if ($env{'request.state'} eq "construct") {
708: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 709: }
710: # if we are viewing someone else preserve that info
1.284 albertel 711: if (defined $env{'form.grade_symb'}) {
1.227 albertel 712: foreach my $field ('symb','courseid','domain','username') {
713: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 714: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 715: }
716: }
717: } elsif ($target eq 'tex') {
1.319 foxr 718: $result .= 'INSERTTEXFRONTMATTERHERE';
719:
1.99 sakharuk 720: }
1.159 albertel 721: } elsif ($target eq 'edit') {
1.343 albertel 722: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 723: $Apache::lonxml::warnings_error_header=
724: &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 725: my $temp=&Apache::edit::insertlist($target,$token);
726: $result.=$temp;
727: } elsif ($target eq 'modified') {
728: $result=$token->[4];
729: $result.=&Apache::edit::handle_insert();
730: } else {
731: # page_start returned a starting result, delete it if we don't need it
732: $result = '';
1.99 sakharuk 733: }
1.159 albertel 734: return $result;
1.9 albertel 735: }
736:
737: sub end_problem {
1.159 albertel 738: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 739: my $result;
1.310 foxr 740:
1.321 albertel 741: if (!$Apache::lonxml::metamode) {
742: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 743: $Apache::lonxml::post_evaluate=0;
1.321 albertel 744: }
1.319 foxr 745:
746: if ($target eq 'tex') {
1.321 albertel 747:
748: # Figure out the front matter and replace the
749: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
750: # this in end_problem because whether or not we display due
751: # dates depends on whether due dates have already been
752: # displayed in the problem parts.
753:
1.319 foxr 754: my $frontmatter = '';
755: my $startminipage = '';
756: if (not $env{'form.problem_split'}=~/yes/) {
757: $startminipage = '\begin{minipage}{\textwidth}';
758: }
759: my $id = $Apache::inputtags::part;
760: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
761: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
762: my @packages = split /,/,$packages;
763: my $allow_print_points = 0;
764: foreach my $partial_key (@packages) {
765: if ($partial_key=~m/^part_0$/) {
766: $allow_print_points=1;
767: }
768: }
769: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
770: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
771: if (lc($env{'course.'.$env{'request.course.id'}.
772: '.disableexampointprint'}) eq 'yes') {
773: $allow_print_points=0;
774: }
775: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
776: 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 ';
777: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
778: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
779:
780: # Figure out what the due date is and if we need to print
781: # it in the problem header. We have been logging the
782: # last due date written to file.
783:
784: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
785: my $duedate = POSIX::strftime("%c",localtime($duetime));
786: my $temp_file;
787: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
788:
789: # Figure out what the last printed due date is or set it
790: # to the epoch if no duedates have been printed.
791:
792: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
793: if (-e $filename) {
794: $temp_file = Apache::File->new($filename);
795: my @due_file = <$temp_file>;
796: $due_file_content = $due_file[$#due_file];
797: chomp $due_file_content;
798: }
799:
800: # We display the due date iff it is not the same as the last
801: # duedate in problem header ($due_file_content), and
802: # none of our parts displayed a duedate.
803: #
804: my $parts_with_displayduedate;
805: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
806: $parts_with_displayduedate =
807: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
808: } else {
809: $parts_with_displayduedate = 0;
810: }
811: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
812: $temp_file = Apache::File->new('>'.$filename);
813: print $temp_file "$duetime\n";
814: if (not $env{'request.symb'} =~ m/\.page_/) {
815: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
816: $frontmatter .= $begin_doc.
817: '\textit{Due date: '.$duedate.'} '.$toc_line;
818: } else {
819: $frontmatter.= $begin_doc.$toc_line;
820: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
821: }
822: } else {
823: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
824: }
825: } else {
826: if (not $env{'request.symb'} =~ m/\.page_/) {
827: $frontmatter .= $begin_doc.$toc_line;
828: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
829: } else {
830: $frontmatter .= '\vskip 1mm \\\\\\\\';
831: }
832: }
833: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
834: }
835:
1.159 albertel 836: my $status=$Apache::inputtags::status['-1'];
837: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
838: $target eq 'tex') {
1.249 albertel 839: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 840: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 841: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
842: &Apache::inputtags::grade;
1.324 albertel 843: } elsif ($status eq 'NEEDS_CHECKIN') {
844: # no need to grade, and don't want to hide data
1.249 albertel 845: } else {
846: # move any submission data to .hidden
847: &Apache::inputtags::hidealldata($Apache::inputtags::part);
848: }
1.159 albertel 849: } elsif ( ($target eq 'web' || $target eq 'tex') &&
850: $Apache::inputtags::part eq '0' &&
1.252 albertel 851: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 852: # if part is zero, no <part>s existed, so we need show the current
853: # grading status
854: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
855: $result.= $gradestatus;
856: }
857: if (
1.284 albertel 858: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 859: ($target eq 'answer') || ($target eq 'tex')
860: ) {
1.227 albertel 861: if ($target ne 'tex' &&
1.284 albertel 862: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 863: $result.="</form>";
864: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
1.159 albertel 865: }
866: if ($target eq 'web') {
1.346 ! albertel 867: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 868: } elsif ($target eq 'tex') {
1.178 sakharuk 869: my $endminipage = '';
1.284 albertel 870: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 871: $endminipage = '\end{minipage}';
872: }
1.284 albertel 873: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 874: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 875: $result=~s/<\/html>//;
1.159 albertel 876: } else {
1.262 sakharuk 877: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 878: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 879: $result .= $endminipage.'\end{document} ';
880: } else {
881: $result .= '';
882: }
1.159 albertel 883: }
884: }
885: }
886: if ($target eq 'grade') {
887: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
888: &finalize_storage();
889: }
1.284 albertel 890: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
891: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 ! albertel 892: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 893: # normally we get it from above, but in CSTR
1.172 albertel 894: # we always show answer mode too.
1.159 albertel 895: }
896: } elsif ($target eq 'meta') {
897: if ($Apache::inputtags::part eq '0') {
1.179 albertel 898: @Apache::inputtags::response=();
1.159 albertel 899: $result=&Apache::response::mandatory_part_meta;
900: }
1.215 albertel 901: $result.=&Apache::response::meta_part_order();
1.258 albertel 902: $result.=&Apache::response::meta_response_order();
1.159 albertel 903: } elsif ($target eq 'edit') {
904: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 905: $result .= &problem_edit_footer();
1.320 albertel 906: } elsif ($target eq 'modified') {
907: $result .= $token->[2];
908: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 909: }
1.155 albertel 910:
1.284 albertel 911: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 912: &Apache::inputtags::check_for_duplicate_ids();
913: }
1.204 albertel 914:
915: &reset_problem_globals('problem');
1.159 albertel 916:
917: return $result;
1.48 albertel 918: }
919:
1.108 albertel 920:
1.48 albertel 921: sub start_library {
1.159 albertel 922: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 923: my ($result,$form_tag_start);
1.244 albertel 924: if ($$tagstack[0] eq 'library') {
925: &init_problem_globals('library');
926: $Apache::lonhomework::type='problem';
927: }
1.159 albertel 928: if ($target eq 'edit') {
1.343 albertel 929: ($result,$form_tag_start)=
930: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
931: 'Edit');
932: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 933: my $temp=&Apache::edit::insertlist($target,$token);
934: $result.=$temp;
935: } elsif ($target eq 'modified') {
936: $result=$token->[4];
937: $result.=&Apache::edit::handle_insert();
1.340 albertel 938: } elsif (($target eq 'web' || $target eq 'webgrade')
939: && $$tagstack[0] eq 'library'
940: && $env{'request.state'} eq "construct" ) {
1.159 albertel 941: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 942: ($result,$form_tag_start)=
943: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
944: $name);
1.159 albertel 945: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 946: $result.=" \n $form_tag_start".
1.159 albertel 947: '<input type="hidden" name="submitted" value="yes" />';
948: $result.=&problem_web_to_edit_header($rndseed);
949: }
950: return $result;
1.48 albertel 951: }
952:
953: sub end_library {
1.159 albertel 954: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
955: my $result='';
956: if ($target eq 'edit') {
957: $result=&problem_edit_footer();
958: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 959: $env{'request.state'} eq "construct") {
1.342 albertel 960: $result.='</form>'.&Apache::lonxml::xmlend();
1.159 albertel 961: }
1.204 albertel 962: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 963: return $result;
1.197 www 964: }
965:
966: sub start_definetag {
1.326 albertel 967: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 968:
969: my $result;
970:
971: my $name = $token->[2]->{'name'};
1.326 albertel 972: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 973: if ($name=~/^\//) {
974: $result=
975: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
976: } else {
977: $result=
978: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
979: }
980: $skip=~s/\</\<\;/gs;
981: $skip=~s/\>/\>\;/gs;
982: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
983: return $result;
984: }
985:
986: sub end_definetag {
987: return '';
1.1 albertel 988: }
989:
990: sub start_block {
1.201 albertel 991: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 992:
993: my $result;
1.1 albertel 994:
1.339 albertel 995: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
996: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 997: my $code = $token->[2]->{'condition'};
1.201 albertel 998: if (defined($code)) {
1.137 albertel 999: if (!$Apache::lonxml::default_homework_loaded) {
1000: &Apache::lonxml::default_homework_load($safeeval);
1001: }
1.131 albertel 1002: $result = &Apache::run::run($code,$safeeval);
1003: &Apache::lonxml::debug("block :$code: returned :$result:");
1004: } else {
1005: $result='1';
1006: }
1007: if ( ! $result ) {
1.201 albertel 1008: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1009: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1010: }
1011: $result='';
1012: } elsif ($target eq 'edit') {
1013: $result .=&Apache::edit::tag_start($target,$token);
1014: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1015: $token,40);
1016: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1017: } elsif ($target eq 'modified') {
1018: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1019: $safeeval,'condition');
1020: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1021: }
1.131 albertel 1022: return $result;
1.1 albertel 1023: }
1024:
1025: sub end_block {
1.167 www 1026: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1027: my $result;
1028: if ($target eq "edit") {
1029: $result.= &Apache::edit::tag_end($target,$token,'');
1030: }
1031: return $result;
1032: }
1033:
1034: sub start_languageblock {
1.201 albertel 1035: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1036:
1037: my $result;
1038:
1.339 albertel 1039: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1040: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1041: my $include = $token->[2]->{'include'};
1042: my $exclude = $token->[2]->{'exclude'};
1043: my %languages=&Apache::loncommon::display_languages();
1044: $result='1';
1045: if ($include) {
1046: $result='';
1047: foreach (split(/\,/,$include)) {
1048: if ($languages{$_}) { $result='1'; }
1049: }
1050: }
1051: if ($exclude) {
1052: foreach (split(/\,/,$exclude)) {
1053: if ($languages{$_}) { $result='0'; }
1054: }
1055: }
1056: if ( ! $result ) {
1057: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1058: $style);
1059: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1060: }
1061: $result='';
1.167 www 1062: } elsif ($target eq 'edit') {
1063: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1064: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1065: $token,40);
1.211 albertel 1066: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1067: $token,40);
1068: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1069: } elsif ($target eq 'modified') {
1070: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1071: $safeeval,'include',
1072: 'exclude');
1.167 www 1073: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1074: }
1075: return $result;
1076: }
1077:
1078: sub end_languageblock {
1.170 www 1079: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1080: my $result;
1.201 albertel 1081: if ($target eq "edit") {
1.170 www 1082: $result.= &Apache::edit::tag_end($target,$token,'');
1083: }
1084: return $result;
1085: }
1086:
1087: sub start_instructorcomment {
1.201 albertel 1088: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1089:
1090: my $result;
1091:
1.339 albertel 1092: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1093: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1094: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1095: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1096: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1097: $parser,$style);
1.170 www 1098: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1099: }
1100: $result='';
1101: } elsif ($target eq 'edit') {
1102: $result .=&Apache::edit::tag_start($target,$token);
1103: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1104: }
1105: return $result;
1106: }
1107:
1108: sub end_instructorcomment {
1.159 albertel 1109: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1110: my $result;
1111: if ($target eq "edit") {
1112: $result.= &Apache::edit::tag_end($target,$token,'');
1113: }
1114: return $result;
1.4 tsai 1115: }
1116:
1117: sub start_while {
1.326 albertel 1118: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1119:
1.160 albertel 1120: my $result;
1.339 albertel 1121: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1122: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1123: my $code = $token->[2]->{'condition'};
1.4 tsai 1124:
1.160 albertel 1125: push( @Apache::structuretags::whileconds, $code);
1126: if (!$Apache::lonxml::default_homework_loaded) {
1127: &Apache::lonxml::default_homework_load($safeeval);
1128: }
1129: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1130: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1131: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1132: push( @Apache::structuretags::whileline, $token->[5]);
1133: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1134: if ( $result ) {
1135: &Apache::lonxml::newparser($parser,\$bodytext);
1136: }
1137: } elsif ($target eq 'edit') {
1138: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1139: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1140: $token,40);
1141: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1142: } elsif ($target eq 'modified') {
1143: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1144: $safeeval,'condition');
1145: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1146: }
1.160 albertel 1147: return $result;
1.4 tsai 1148: }
1149:
1150: sub end_while {
1.159 albertel 1151: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1152: my $result;
1153:
1.339 albertel 1154: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1155: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1156: my $code = pop(@Apache::structuretags::whileconds);
1157: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1158: my $line = pop(@Apache::structuretags::whileline);
1159: my $return = &Apache::run::run($code,$safeeval);
1160: my $starttime=time;
1161: my $error=0;
1162: while ($return) {
1163: if (time-$starttime >
1164: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1165: #$return = 0; $error=1; next;
1.161 albertel 1166: }
1167: $result.=&Apache::scripttag::xmlparse($bodytext);
1168: $return = &Apache::run::run($code,$safeeval);
1169: }
1170: if ($error) {
1.270 albertel 1171: &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 1172: }
1173: } elsif ($target eq "edit") {
1174: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1175: }
1.160 albertel 1176: return $result;
1.1 albertel 1177: }
1.6 tsai 1178:
1.160 albertel 1179: # <randomlist show="1">
1.6 tsai 1180: # <tag1>..</tag1>
1181: # <tag2>..</tag2>
1182: # <tag3>..</tag3>
1.160 albertel 1183: # ...
1.6 tsai 1184: # </randomlist>
1185: sub start_randomlist {
1.326 albertel 1186: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1187: my $result;
1.339 albertel 1188: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1189: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1190: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1191: my $b_parser= HTML::LCParser->new(\$body);
1192: $b_parser->xml_mode(1);
1193: $b_parser->marked_sections(1);
1.159 albertel 1194: my $b_tok;
1195: my @randomlist;
1196: my $list_item;
1197: while($b_tok = $b_parser->get_token() ) {
1198: if($b_tok->[0] eq 'S') { # start tag
1199: # get content of the tag until matching end tag
1200: # get all text upto the matching tag
1201: # and push the content into @randomlist
1202: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1203: $b_parser);
1204: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1205: push(@randomlist,$list_item);
1206: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1207: # $list_item</b>";
1208: }
1209: if($b_tok->[0] eq 'T') { # text
1210: # what to do with text in between tags?
1211: # print "<b>TEXT $b_tok->[1]</b><br />";
1212: }
1213: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1214: # print "<b>END-TAG $b_tok->[1]</b><br />";
1215: # }
1216: }
1.303 albertel 1217: if (@randomlist) {
1218: my @idx_arr = (0 .. $#randomlist);
1219: &Apache::structuretags::shuffle(\@idx_arr);
1220: my $bodytext = '';
1221: my $show=$#randomlist;
1222: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1223: $showarg--;
1224: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1225: for(0 .. $show) {
1226: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1227: }
1228: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1229: }
1230: } elsif ($target eq 'edit' ) {
1231: $result .=&Apache::edit::tag_start($target,$token);
1232: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1233: $token,5);
1234: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1235: } elsif ($target eq 'modified' ) {
1236: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1237: $safeeval,'show');
1238: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1239: }
1240: return $result;
1.7 tsai 1241: }
1242:
1243: sub shuffle {
1244: my $a=shift;
1245: my $i;
1.303 albertel 1246: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1247: &Apache::response::pushrandomnumber();
1.159 albertel 1248: for($i=@$a;--$i;) {
1249: my $j=int(&Math::Random::random_uniform() * ($i+1));
1250: next if $i == $j;
1251: @$a[$i,$j] = @$a[$j,$i];
1252: }
1.251 albertel 1253: &Apache::response::poprandomnumber();
1.7 tsai 1254: }
1.6 tsai 1255: }
1256:
1257: sub end_randomlist {
1.159 albertel 1258: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1259: my $result;
1260: if ($target eq 'edit' ) {
1261: $result=&Apache::edit::tag_end($target,$token,
1262: 'End Randomly Parsed Block');
1263: }
1264: return $result;
1.6 tsai 1265: }
1266:
1.283 albertel 1267: sub ordered_show_check {
1268: my $last_part=$Apache::inputtags::partlist[-2];
1269: my $in_order=
1270: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1271: my $in_order_show=1;
1272: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1273: $in_order_show=&Apache::response::check_status($last_part);
1274: }
1275: return $in_order_show;
1276: }
1277:
1.11 albertel 1278: sub start_part {
1.326 albertel 1279: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1280: if (!$Apache::lonxml::metamode) {
1281: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1282: # duedates.
1283: }
1.159 albertel 1284: my $result='';
1285: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1286: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1287: $Apache::inputtags::part=$id;
1.177 albertel 1288: push(@Apache::inputtags::partlist,$id);
1289: @Apache::inputtags::response=();
1.159 albertel 1290: @Apache::inputtags::previous=();
1291: @Apache::inputtags::previous_version=();
1.241 albertel 1292: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1293: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1294: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1295: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1296: my $in_order_show=&ordered_show_check();
1.214 albertel 1297: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1298: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1299: &Apache::run::run($expression,$safeeval);
1.159 albertel 1300:
1301: if ($target eq 'meta') {
1.224 www 1302: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1303: return &Apache::response::mandatory_part_meta.
1304: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1305: } elsif ($target eq 'web' || $target eq 'grade' ||
1306: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1307: if ($hidden || !$in_order_show) {
1.326 albertel 1308: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1309: } else {
1310: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1311: push (@Apache::inputtags::status,$status);
1312: my $expression='$external::datestatus="'.$status.'";';
1313: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1314: &Apache::run::run($expression,$safeeval);
1.284 albertel 1315: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1316: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1317: }
1.216 albertel 1318: if (( $status eq 'CLOSED' ) ||
1319: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1320: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1321: ( $status eq 'BANNED') ||
1322: ( $status eq 'UNAVAILABLE') ||
1323: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1324: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1325: $style);
1.159 albertel 1326: if ( $target eq "web" ) {
1.211 albertel 1327: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1328: } elsif ( $target eq 'tex' ) {
1.284 albertel 1329: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1330: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1331: } else {
1.211 albertel 1332: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1333: }
1.159 albertel 1334: }
1335: } else {
1336: if ($target eq 'tex') {
1.284 albertel 1337: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1338: if ($$tagstack[-2] eq 'td') {
1339: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1340: } else {
1341: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1342: }
1.195 sakharuk 1343: }
1.159 albertel 1344: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1345: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1346: my @allkeys = split /,/,$allkeys;
1347: my $allow_print_points = 0;
1348: foreach my $partial_key (@allkeys) {
1.230 albertel 1349: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1350: if ($1 ne '0') {$allow_print_points=1;}
1351: }
1352: }
1.275 albertel 1353: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1354: if (defined($maxtries) && $maxtries < 0) {
1355: $allow_print_points=0;
1356: }
1.302 albertel 1357: if (lc($env{'course.'.$env{'request.course.id'}.
1358: '.disableexampointprint'}) eq 'yes') {
1359: $allow_print_points=0;
1360: }
1.222 sakharuk 1361: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1362: } elsif ($target eq 'web') {
1363: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1364: }
1365: }
1366: }
1367: } elsif ($target eq 'edit') {
1368: $result.=&Apache::edit::tag_start($target,$token);
1369: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1370: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1371: ' '.
1372: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1373: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1374: } elsif ($target eq 'modified') {
1375: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1376: $safeeval,'id','display');
1.159 albertel 1377: if ($constructtag) {
1.225 albertel 1378: #limiting ids to only letters numbers, and space
1.224 www 1379: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1380: $result = &Apache::edit::rebuild_tag($token);
1381: $result.=&Apache::edit::handle_insert();
1382: }
1383: }
1384: return $result;
1.11 albertel 1385: }
1386:
1387: sub end_part {
1.159 albertel 1388: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1389: &Apache::lonxml::debug("in end_part $target ");
1390: my $status=$Apache::inputtags::status['-1'];
1391: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1392: my $in_order_show=&ordered_show_check();
1.321 albertel 1393: my $result;
1394: if (!$Apache::lonxml::metamode) {
1395: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1396: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1397: }
1.312 albertel 1398: if ($target eq 'grade') {
1.249 albertel 1399: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1400: !$hidden && $in_order_show) {
1.311 foxr 1401: $result.=&Apache::inputtags::grade;
1.249 albertel 1402: } else {
1403: # move any submission data to .hidden
1404: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1405: }
1.283 albertel 1406: } elsif (($target eq 'web' || $target eq 'tex') &&
1407: !$hidden && $in_order_show) {
1.159 albertel 1408: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1409: $target);
1.212 albertel 1410: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1411: $gradestatus='';
1412: }
1.311 foxr 1413: $result.=$gradestatus;
1.265 sakharuk 1414: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1415: } elsif ($target eq 'edit') {
1.311 foxr 1416: $result.=&Apache::edit::end_table();
1.322 albertel 1417: } elsif ($target eq 'modified') {
1418: $result .= $token->[2];
1419: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 1420: }
1421: pop @Apache::inputtags::status;
1422: $Apache::inputtags::part='';
1.295 albertel 1423: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1424: return $result;
1.11 albertel 1425: }
1.1 albertel 1426:
1.25 albertel 1427: sub start_preduedate {
1.326 albertel 1428: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1429: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1430: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1431: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1432: if (!$Apache::lonhomework::scantronmode &&
1433: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1434: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1435: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1436: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1437: }
1.24 albertel 1438: }
1.159 albertel 1439: return '';
1.24 albertel 1440: }
1441:
1.25 albertel 1442: sub end_preduedate {
1.159 albertel 1443: return '';
1.24 albertel 1444: }
1445:
1.25 albertel 1446: sub start_postanswerdate {
1.326 albertel 1447: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1448: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade') {
1.300 albertel 1449: if ($Apache::lonhomework::scantronmode ||
1450: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.326 albertel 1451: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1452: }
1453: } elsif ($target eq 'tex') {
1.326 albertel 1454: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1455: }
1456: return '';
1.24 albertel 1457: }
1458:
1.25 albertel 1459: sub end_postanswerdate {
1.159 albertel 1460: return '';
1.24 albertel 1461: }
1462:
1.25 albertel 1463: sub start_notsolved {
1.326 albertel 1464: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1465: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1466: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1467: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1468: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1469: if ($gradestatus =~ /^correct/ &&
1470: &Apache::response::show_answer()) {
1.159 albertel 1471: &Apache::lonxml::debug("skipping");
1.326 albertel 1472: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1473: }
1.24 albertel 1474: }
1.159 albertel 1475: return '';
1.24 albertel 1476: }
1477:
1.25 albertel 1478: sub end_notsolved {
1.159 albertel 1479: return '';
1.24 albertel 1480: }
1481:
1482: sub start_solved {
1.326 albertel 1483: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1484: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1485: $target eq 'tex') {
1486: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1487: if ($gradestatus !~ /^correct/ ||
1488: !&Apache::response::show_answer()) {
1.326 albertel 1489: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1490: }
1.24 albertel 1491: }
1.159 albertel 1492: return '';
1.24 albertel 1493: }
1494:
1495: sub end_solved {
1.248 albertel 1496: return '';
1497: }
1498:
1499: sub start_problemtype {
1.326 albertel 1500: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1501: my $result;
1.339 albertel 1502: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1503: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1504: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1505: if (!defined($mode)) { $mode='show'; }
1506: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1507: my $found=0;
1508: foreach my $type (split(',',$for)) {
1509: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1510: }
1511: if ($mode eq 'show' && !$found) {
1.326 albertel 1512: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1513: }
1514: if ($mode eq 'hide' && $found) {
1.326 albertel 1515: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1516: }
1517: } elsif ($target eq 'edit') {
1518: $result .=&Apache::edit::tag_start($target,$token);
1519: $result.=&Apache::edit::select_arg('Mode:','mode',
1520: [['show','Show'],
1521: ['hide','Hide']]
1522: ,$token);
1523: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1524: [ ['exam','Exam/Quiz Problem'],
1525: ['survey','Survey'],
1526: ['problem','Homework Problem'] ]
1527: ,$token);
1528: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1529: } elsif ($target eq 'modified') {
1530: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1531: $safeeval,'mode','for');
1532: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1533: }
1534: return $result;
1535: }
1536:
1537: sub end_problemtype {
1.159 albertel 1538: return '';
1.24 albertel 1539: }
1.34 albertel 1540:
1541: sub start_startouttext {
1.159 albertel 1542: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1543: my @result=(''.'');
1544: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1545: return (@result);
1.34 albertel 1546: }
1.159 albertel 1547:
1.34 albertel 1548: sub end_startouttext {
1.326 albertel 1549: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1550: my $result='';
1551: my $text='';
1552:
1553: if ($target eq 'edit') {
1.326 albertel 1554: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1555: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1556: <td>".&mt('Delete:').
1.159 albertel 1557: &Apache::edit::deletelist($target,$token)
1558: ."</td>
1.42 albertel 1559: <td>".
1.159 albertel 1560: &Apache::edit::insertlist($target,$token).
1561: &Apache::edit::end_row().
1562: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1563: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1564: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1565: }
1566: if ($target eq 'modified') {
1.219 albertel 1567: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1568: }
1569: if ($target eq 'tex') {
1570: $result .= '\noindent ';
1571: }
1572: return $result;
1.34 albertel 1573: }
1.159 albertel 1574:
1.34 albertel 1575: sub start_endouttext {
1.159 albertel 1576: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1577: my $result='';
1578: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1579: if ($target eq "modified") {
1580: $result='<endouttext />'.
1581: &Apache::edit::handle_insertafter('startouttext'); }
1582: return $result;
1.34 albertel 1583: }
1.159 albertel 1584:
1.34 albertel 1585: sub end_endouttext {
1.159 albertel 1586: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1587: my @result=('','');
1588: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1589: return (@result);
1.34 albertel 1590: }
1.159 albertel 1591:
1.45 albertel 1592: sub delete_startouttext {
1.326 albertel 1593: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1594: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1595: my $text=$$parser['-1']->get_text("/endouttext");
1596: my $ntoken=$$parser['-1']->get_token();
1597: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1598: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1599: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1600: # they did the last time round
1601: &Apache::lonxml::increasedepth($ntoken);
1602: &Apache::lonxml::decreasedepth($ntoken);
1603: return 1;
1.193 www 1604: }
1605:
1606: sub start_simpleeditbutton {
1607: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1608: my $result='';
1.284 albertel 1609: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1610: ($target eq 'web') &&
1.330 albertel 1611: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1612: my $url=$env{'request.noversionuri'};
1.193 www 1613: $url=~s/\?.*$//;
1.278 albertel 1614: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1615: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1616: '<a href="'.$url.'/smpedit?symb='.&Apache::lonnet::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 1617: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1618: }
1619: return $result;
1620: }
1621:
1622: sub end_simpleeditbutton {
1623: return '';
1.45 albertel 1624: }
1.34 albertel 1625:
1.1 albertel 1626: 1;
1627: __END__
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