Annotation of loncom/homework/structuretags.pm, revision 1.353
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.353 ! albertel 4: # $Id: structuretags.pm,v 1.352 2006/04/20 19:07:09 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: if ($target eq 'tex') {
83: return
84: &Apache::londefdef::start_html($target,$token,$tagstack,
85: $parstack,$parser,$safeeval);
86: }
87:
1.344 albertel 88: my %body_args;
89: if (defined($found{'html'})) {
90: $body_args{'skip_phases'}{'head'}=1;
91: } else {
1.343 albertel 92:
1.345 albertel 93: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 94:
1.336 albertel 95: my $css_href = &Apache::lonnet::EXT('resource.0.cssfile');
1.335 albertel 96: if ($css_href =~ /\S/) {
97: &Apache::lonxml::extlink($css_href);
1.343 albertel 98: $extra_head .=
1.335 albertel 99: '<link rel="stylesheet" type="text/css" href="'.$css_href.'" />';
100: }
1.327 albertel 101: if ($target eq 'edit') {
1.343 albertel 102: $extra_head.=&Apache::edit::js_change_detection().
103: "<script type=\"text/javascript\">\n".
104: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
105: &Apache::loncommon::browser_and_searcher_javascript().
106: "\n</script>\n";
107: }
1.159 albertel 108: }
1.343 albertel 109:
1.344 albertel 110: if (defined($found{'body'})) {
111: $body_args{'skip_phases'}{'body'}=1;
112: } elsif (!defined($found{'body'})
113: && $env{'request.state'} eq 'construct') {
1.343 albertel 114: if ($target eq 'web' || $target eq 'edit') {
1.344 albertel 115: # no extra args to bodytag
1.297 albertel 116: }
1.272 albertel 117: } elsif (!defined($found{'body'})) {
1.343 albertel 118: my %add_entries;
1.159 albertel 119: my $background=&Apache::lonxml::get_param('background',$parstack,
120: $safeeval);
1.343 albertel 121: if ($background ne '' ) {
122: $add_entries{'background'} = $background;
123: }
1.344 albertel 124:
1.290 albertel 125: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
126: $safeeval);
1.344 albertel 127: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
128:
129: $body_args{'bgcolor'} = $bgcolor;
130: $body_args{'no_title'} = 1;
131: $body_args{'force_register'} = 1;
132: $body_args{'add_entries'} = \%add_entries;
133: }
134:
135: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
136: \%body_args);
137:
138: if (!defined($found{'body'})
139: && $env{'request.state'} ne 'construct'
140: && ($target eq 'web' || $target eq 'webgrade')) {
141:
142: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonxml::whichuser();
143: if ($symb eq '' && !$publicuser) {
144: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
145: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
146: $page_start .= $help;
1.159 albertel 147: }
1.344 albertel 148: }
149:
150: if (!defined($found{'body'})) {
1.343 albertel 151: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 152: }
1.344 albertel 153:
1.159 albertel 154: my $form_tag_start;
155: if (!defined($found{'form'})) {
1.337 albertel 156: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.338 albertel 157: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.327 albertel 158: $form_tag_start.=$uri.'" ';
159: if ($target eq 'edit') {
160: $form_tag_start.=&Apache::edit::form_change_detection();
161: }
162: $form_tag_start.='>';
1.159 albertel 163: }
1.343 albertel 164: return ($page_start,$form_tag_start);
1.105 albertel 165: }
166:
1.141 matthew 167: #use Time::HiRes();
1.105 albertel 168: sub get_resource_name {
1.159 albertel 169: my ($parstack,$safeeval)=@_;
1.204 albertel 170: if (defined($Apache::lonhomework::name)) {
171: return $Apache::lonhomework::name;
172: }
1.279 albertel 173: my ($symb)=&Apache::lonxml::whichuser();
174: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 175: if ($name eq '') {
176: $name=&Apache::lonnet::EXT('resource.title');
177: if ($name eq 'con_lost') { $name = ''; }
178: }
1.204 albertel 179: if ($name!~/\S+/) {
1.284 albertel 180: $name=$env{'request.uri'};
1.205 albertel 181: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 182: }
1.159 albertel 183: $Apache::lonhomework::name=$name;
184: return $name;
1.105 albertel 185: }
186:
187: sub setup_rndseed {
1.159 albertel 188: my ($safeeval)=@_;
189: my $rndseed;
1.162 albertel 190: my ($symb)=&Apache::lonxml::whichuser();
1.333 albertel 191: if ($env{'request.state'} eq "construct"
192: || $symb eq ''
193: || $Apache::lonhomework::type eq 'practice'
194: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 195: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 196: ['rndseed']);
1.284 albertel 197: $rndseed=$env{'form.rndseed'};
1.159 albertel 198: if (!$rndseed) {
1.162 albertel 199: $rndseed=$Apache::lonhomework::history{'rndseed'};
200: if (!$rndseed) {
201: $rndseed=time;
202: }
1.284 albertel 203: $env{'form.rndseed'}=$rndseed;
1.162 albertel 204: }
1.284 albertel 205: if ($env{'form.resetdata'} eq &mt('New Problem Variation') ||
206: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 207: srand(time);
208: $rndseed=int(rand(2100000000));
1.284 albertel 209: $env{'form.rndseed'}=$rndseed;
210: delete($env{'form.resetdata'});
211: delete($env{'form.newrandomization'});
1.159 albertel 212: }
1.187 albertel 213: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 214: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 215: }
1.247 albertel 216: if ($Apache::lonhomework::history{'resource.CODE'}) {
217: $rndseed=&Apache::lonnet::rndseed();
218: }
1.221 albertel 219: if ($safeeval) {
220: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 221: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 222: }
1.159 albertel 223: }
224: return $rndseed;
1.105 albertel 225: }
226:
1.268 albertel 227: sub remember_problem_state {
228: return '
1.284 albertel 229: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
230: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
231: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 232: }
233:
1.105 albertel 234: sub problem_edit_header {
1.268 albertel 235: return '<input type="hidden" name="submitted" value="edit" />'.
236: &Apache::structuretags::remember_problem_state().'
1.210 albertel 237: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 238: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
1.328 albertel 239: <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 240: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
241: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
242: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.260 albertel 243: &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
244: .'</td></tr></table>'.
1.282 albertel 245: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 246: }
247:
248: sub problem_edit_footer {
1.210 albertel 249: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 250: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
1.348 albertel 251: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 252: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 253: }
254:
1.235 albertel 255: sub option {
256: my ($value,$name) = @_;
257: my $result ="<option value='".$value."' ";
1.284 albertel 258: if ($env{'form.'.$name} eq $value) {
1.235 albertel 259: $result.=" selected='on' ";
260: }
261: $result.='>';
262: return $result;
263: }
264:
1.105 albertel 265: sub problem_web_to_edit_header {
1.159 albertel 266: my ($rndseed)=@_;
1.313 albertel 267: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
268: if (!$Apache::lonhomework::parsing_a_task) {
269: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
270: }
271: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 272: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
273: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 274: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 275: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 276: $rndseed.'"
1.270 albertel 277: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 278: <label><input type="checkbox" name="showallfoils" ';
1.315 albertel 279: my $show_all_foils_text =
280: ($Apache::lonhomework::parsing_a_task) ?
281: &mt(' Show All Instances')
282: : &mt(' Show All Foils');
283:
1.284 albertel 284: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.315 albertel 285: $result.= ' />'.$show_all_foils_text.
1.228 www 286: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.281 albertel 287: '</label><hr />';
1.313 albertel 288: if (!$Apache::lonhomework::parsing_a_task) {
289: $result.="
1.235 albertel 290: <nobr>
291: Problem Status:
292: <select name='problemstate'>
1.270 albertel 293: <option value=''></option>
1.235 albertel 294: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
295: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
296: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
297: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
298: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
299: </select>
300: </nobr>
301: <nobr>
302: Problem Type:
303: <select name='problemtype'>
1.270 albertel 304: <option value=''></option>
1.242 albertel 305: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
306: ".&option('problem','problemtype').&mt("Homework problem")."</option>
307: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 308: </select>
309: </nobr>
310: <nobr>
311: Feedback Mode:
312: <select name='problemstatus'>
313: <option value=''></option>
1.242 albertel 314: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
315: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 316: </select>
317: </nobr>
1.242 albertel 318: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 319: <hr />";
1.313 albertel 320: my $numtoanalyze=$env{'form.numtoanalyze'};
321: if (!$numtoanalyze) { $numtoanalyze=20; }
322: $result.= '<input type="submit" name="problemmode" value='.
323: &mt('"Calculate answers').'" /> for
1.136 albertel 324: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 325: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
326: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 327: '',undef,undef,300).
1.210 albertel 328: '<hr />';
1.313 albertel 329: }
1.159 albertel 330: return $result;
1.48 albertel 331: }
332:
1.65 albertel 333: sub initialize_storage {
1.353 ! albertel 334: undef(%Apache::lonhomework::results);
! 335: undef(%Apache::lonhomework::history);
1.159 albertel 336: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.353 ! albertel 337:
! 338: # anonymous users (CODEd exams) have no data
! 339: if ($name eq 'anonymous'
! 340: && !defined($domain)) {
! 341: return;
! 342: }
! 343:
1.333 albertel 344: if ($env{'request.state'} eq 'construct'
345: || $symb eq ''
346: || $Apache::lonhomework::type eq 'practice') {
347:
348: my $namespace = $symb || $env{'request.uri'};
349: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
350: $env{'form.resetdata'} eq &mt('New Problem Variation') ||
351: $env{'form.newrandomization'} eq &mt('New Randomization')) {
352: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
353: &Apache::lonxml::debug("Attempt reset");
354: }
1.159 albertel 355: %Apache::lonhomework::history=
1.333 albertel 356: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 357: my ($temp)=keys %Apache::lonhomework::history ;
358: &Apache::lonxml::debug("Return message of $temp");
359: } else {
360: %Apache::lonhomework::history=
361: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
362: }
1.353 ! albertel 363:
1.159 albertel 364: #ignore error conditions
1.67 albertel 365: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 366: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 367: }
368:
369: # -------------------------------------------------------------finalize_storage
370: # Stores away the result has to a student's environment
371: # checks form.grade_ for specific values, other wises stores
372: # to the running users environment
1.285 raeburn 373: # Will increment totals for attempts, students, and corrects
374: # if running user has student role.
1.65 albertel 375: sub finalize_storage {
1.159 albertel 376: my $result;
1.289 albertel 377: if (%Apache::lonhomework::results) {
1.323 albertel 378: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
379: delete(@Apache::lonhomework::results{@remove});
1.159 albertel 380: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.333 albertel 381: if ($env{'request.state'} eq 'construct'
382: || $symb eq ''
383: || $Apache::lonhomework::type eq 'practice') {
384: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 385: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 386: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 387: $namespace,'',$domain,$name);
1.159 albertel 388: &Apache::lonxml::debug('Construct Store return message:'.$result);
389: } else {
390: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
391: $symb,$courseid,$domain,$name);
392: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 393: if ($env{'request.role'} =~/^st/) {
394: &store_aggregates($symb,$courseid);
395: }
1.159 albertel 396: }
1.323 albertel 397: } else {
398: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 399: }
1.159 albertel 400: return $result;
1.65 albertel 401: }
1.289 albertel 402: use Data::Dumper;
1.65 albertel 403:
1.285 raeburn 404: # -------------------------------------------------------------store_aggregates
405: # Sends hash of values to be incremented in nohist_resourcetracker.db
406: # for the course. Increments total number of attempts, unique students
407: # and corrects for each part for an instance of a problem, as appropriate.
408: sub store_aggregates {
409: my ($symb,$courseid) = @_;
1.286 albertel 410: my %aggregate;
411: my @parts;
1.288 albertel 412: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
413: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 414: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 415: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 416: push(@parts, $1);
1.285 raeburn 417: }
418: }
1.286 albertel 419: foreach my $part (@parts) {
420: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
421: eq 'APPROX_ANS' ||
422: $Apache::lonhomework::results{'resource.'.$part.'.award'}
423: eq 'EXACT_ANS') {
1.287 albertel 424: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 425: }
1.286 albertel 426: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 427: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 428: } else {
1.293 albertel 429: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 430: if ($last_reset) {
1.293 albertel 431: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 432: $aggregate{$symb."\0".$part."\0users"} = 1;
433: }
434: }
1.285 raeburn 435: }
1.287 albertel 436: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 437: }
1.292 raeburn 438: if (keys (%aggregate) > 0) {
1.289 albertel 439: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 440: $cdomain,$cname);
441: }
442: }
1.289 albertel 443:
1.65 albertel 444: sub checkout_msg {
1.211 albertel 445: my %lt=&Apache::lonlocal::texthash(
446: 'resource'=>'The resource needs to be checked out',
447: '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.',
448: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
449: 'checkout'=>'Check out Exam for Viewing',
450: 'checkout?'=>'Check out Exam?');
1.352 albertel 451: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 452: return (<<ENDCHECKOUT);
1.211 albertel 453: <h2>$lt{'resource'}</h2>
454: <p>$lt{'id_expln'}</p>
455: <font color="red">
456: <p>$lt{'warning'}</p>
1.91 albertel 457: </font>
1.352 albertel 458: <form name="checkout" method="POST" action="$uri">
1.91 albertel 459: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 460: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 461: </form>
462: ENDCHECKOUT
463: }
464:
1.252 albertel 465: sub firstaccess_msg {
1.253 albertel 466: my ($time,$symb)=@_;
467: my ($map)=&Apache::lonnet::decode_symb($symb);
468: my $foldertitle=&Apache::lonnet::gettitle($map);
469: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.352 albertel 470: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.252 albertel 471: return (<<ENDCHECKOUT);
1.253 albertel 472: <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 473: <form name="markaccess" method="POST" action="$uri">
1.252 albertel 474: <input type="hidden" name="markaccess" value="yes" />
475: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
476: </form>
477: ENDCHECKOUT
478: }
479:
1.204 albertel 480: sub init_problem_globals {
481: my ($type)=@_;
482: #initialize globals
1.308 foxr 483: # For problems, we start out in part 0 (outside a <part> tag).
484: # and part 0 is used to describe the main body of the <problem>
485: #
1.204 albertel 486: if ($type eq 'problem') {
487: $Apache::inputtags::part='0';
488: @Apache::inputtags::partlist=('0');
1.266 albertel 489: $Apache::lonhomework::problemstatus=&get_problem_status('0');
490: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 491:
1.266 albertel 492: } elsif ($type eq 'library') {
1.204 albertel 493: $Apache::inputtags::part='';
494: @Apache::inputtags::partlist=();
495: $Apache::lonhomework::problemstatus='';
1.266 albertel 496: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 497:
1.304 albertel 498: } elsif ($type eq 'Task') {
499: $Apache::inputtags::part='0';
500: @Apache::inputtags::partlist=('0');
501: $Apache::lonhomework::problemstatus='';
502: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 503: }
504: @Apache::inputtags::responselist = ();
505: @Apache::inputtags::importlist = ();
506: @Apache::inputtags::previous=();
507: @Apache::inputtags::previous_version=();
508: $Apache::structuretags::printanswer='No';
509: @Apache::structuretags::whileconds=();
510: @Apache::structuretags::whilebody=();
511: @Apache::structuretags::whileline=();
512: $Apache::lonhomework::scantronmode=0;
513: undef($Apache::lonhomework::name);
514:
515: }
516:
517: sub reset_problem_globals {
518: my ($type)=@_;
519: undef(%Apache::lonhomework::history);
520: undef(%Apache::lonhomework::results);
521: undef($Apache::inputtags::part);
1.208 albertel 522: #don't undef this, lonhomework.pm takes care of this, we use this to
523: #detect if we try to do 2 problems in one file
524: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 525: undef($Apache::lonhomework::name);
526: }
527:
1.241 albertel 528: sub set_problem_state {
1.240 albertel 529: my ($part)=@_;
1.284 albertel 530: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 531: $Apache::lonhomework::history{"resource.$part.solved"}=
532: 'correct_by_student';
533: }
534: }
535:
1.241 albertel 536: sub get_problem_status {
537: my ($part)=@_;
1.267 albertel 538: my $problem_status;
1.284 albertel 539: if ($env{'request.state'} eq 'construct' &&
540: defined($env{'form.problemstatus'})) {
541: $problem_status=$env{'form.problemstatus'};
1.267 albertel 542: } else {
543: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
544: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 545: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 546: }
547: return $problem_status;
548: }
549:
1.9 albertel 550: sub start_problem {
1.326 albertel 551: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 552:
1.311 foxr 553: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 554: if (!$Apache::lonxml::metamode) {
555: &Apache::lonxml::startredirection();
556: }
1.311 foxr 557:
1.308 foxr 558: # Problems don't nest and we don't allow more than one <problem> in
559: # a .problem file.
560: #
1.184 albertel 561: if ( $Apache::inputtags::part ne '' ||
562: $Apache::lonhomework::parsing_a_problem) {
563: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 564: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 565: return '';
566: }
1.184 albertel 567:
568: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 569: &init_problem_globals('problem');
1.166 albertel 570:
1.284 albertel 571: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 572: $Apache::lonhomework::scantronmode=1;
573: }
1.161 albertel 574:
1.246 albertel 575: &initialize_storage();
1.159 albertel 576: if ($target ne 'analyze') {
577: if ($target eq 'web') {
578: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 579: }
1.284 albertel 580: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 581: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 582: if (($env{'request.state'} eq 'construct') &&
583: defined($env{'form.problemtype'})) {
584: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 585: }
1.332 albertel 586: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 587: }
1.164 albertel 588: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 589: my $uri=$env{'request.uri'};
1.159 albertel 590: if ($uri=~/\.(\w+)$/) {
591: $Apache::lonhomework::type=$1;
592: &Apache::lonxml::debug("Using type of $1");
593: } else {
594: $Apache::lonhomework::type='problem';
595: &Apache::lonxml::debug("Using default type, problem, :$uri:");
596: }
1.87 albertel 597: }
1.301 albertel 598: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 599:
1.159 albertel 600: #added vars to the scripting enviroment
1.213 albertel 601: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 602: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 603: &Apache::run::run($expression,$safeeval);
1.159 albertel 604: my $status;
605: my $accessmsg;
606:
1.343 albertel 607: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 608: my ($result,$form_tag_start);
609: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex') {
610: ($result,$form_tag_start) =
611: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
612: $name);
613: }
614:
1.284 albertel 615: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 616:
617: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
618: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
619: $target eq 'tex') {
620: #handle exam checkout
621: if ($Apache::lonhomework::type eq 'exam') {
622: my $token=
623: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 624: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 625: $token=&Apache::lonxml::maketoken();
626: $Apache::lonhomework::history{"resource.0.outtoken"}=
627: $token;
628: }
1.343 albertel 629: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 630: }
1.284 albertel 631: if ($env{'form.markaccess'}) {
1.252 albertel 632: &Apache::lonnet::set_first_access('map');
633: }
1.159 albertel 634: #handle rand seed in construction space
635: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 636: my ($symb)=&Apache::lonxml::whichuser();
1.333 albertel 637: if ($env{'request.state'} ne "construct" &&
638: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 639: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
640: $rndseed.'" />'.
641: '<input type="submit" name="resetdata"
1.334 albertel 642: value="'.&mt('New Problem Variation').'" />';
643: if (exists($env{'form.username'})) {
644: $form_tag_start.=
1.164 albertel 645: '<input type="hidden" name="username"
1.284 albertel 646: value="'.$env{'form.username'}.'" />';
1.334 albertel 647: }
1.333 albertel 648: if ($env{'request.role.adv'}) {
1.267 albertel 649: $form_tag_start.=
1.300 albertel 650: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 651: if (defined($env{'form.showallfoils'})) {
1.267 albertel 652: $form_tag_start.='checked="on"';
653: }
1.300 albertel 654: $form_tag_start.= ' />'.&mt(' Show All Foils').
655: '</label>';
1.267 albertel 656: }
657: $form_tag_start.='<hr />';
1.162 albertel 658: }
1.324 albertel 659:
660: ($status,$accessmsg,my $slot_name,my $slot) =
661: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 662: push (@Apache::inputtags::status,$status);
1.324 albertel 663:
1.159 albertel 664: my $expression='$external::datestatus="'.$status.'";';
665: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
666: &Apache::run::run($expression,$safeeval);
667: &Apache::lonxml::debug("Got $status");
1.324 albertel 668:
1.159 albertel 669: if (( $status eq 'CLOSED' ) ||
670: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 671: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 672: ( $status eq 'BANNED') ||
1.216 albertel 673: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 674: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 675: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 676: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
677: $style);
1.159 albertel 678: if ( $target eq "web" ) {
1.343 albertel 679: my $msg;
1.159 albertel 680: if ($status eq 'UNAVAILABLE') {
1.245 albertel 681: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 682: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 683: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 684: }
1.216 albertel 685: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 686: $msg.='The problem '.$accessmsg;
687: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 688: $msg.=&checkout_msg();
1.252 albertel 689: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 690: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 691: } elsif ($status eq 'NOT_IN_A_SLOT') {
692: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 693: }
694: $result.=$msg.'<br />';
695: } elsif ($target eq 'tex') {
1.332 albertel 696: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
697: : '\begin{minipage}{\textwidth}';
698: $result.='\begin{document}\noindent \vskip 1 mm '.
699: $startminipage.'\vskip 0 mm';
1.159 albertel 700: if ($status eq 'UNAVAILABLE') {
1.211 albertel 701: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 702: } else {
1.211 albertel 703: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 704: }
705: }
1.324 albertel 706: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 707: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
708: $style);
1.324 albertel 709: if ($target eq 'web') {
710: $result .= &Apache::bridgetask::proctor_validation_screen();
711: } elsif ($target eq 'grade') {
712: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
713: 'problem');
714: }
1.159 albertel 715: } elsif ($target eq 'web') {
1.343 albertel 716: $result.="\n $form_tag_start".
1.227 albertel 717: '<input type="hidden" name="submitted" value="yes" />';
718: # create a page header and exit
1.284 albertel 719: if ($env{'request.state'} eq "construct") {
720: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 721: }
722: # if we are viewing someone else preserve that info
1.284 albertel 723: if (defined $env{'form.grade_symb'}) {
1.227 albertel 724: foreach my $field ('symb','courseid','domain','username') {
725: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 726: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 727: }
728: }
729: } elsif ($target eq 'tex') {
1.319 foxr 730: $result .= 'INSERTTEXFRONTMATTERHERE';
731:
1.99 sakharuk 732: }
1.159 albertel 733: } elsif ($target eq 'edit') {
1.343 albertel 734: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 735: $Apache::lonxml::warnings_error_header=
736: &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 737: my $temp=&Apache::edit::insertlist($target,$token);
738: $result.=$temp;
739: } elsif ($target eq 'modified') {
740: $result=$token->[4];
741: $result.=&Apache::edit::handle_insert();
742: } else {
743: # page_start returned a starting result, delete it if we don't need it
744: $result = '';
1.99 sakharuk 745: }
1.159 albertel 746: return $result;
1.9 albertel 747: }
748:
749: sub end_problem {
1.159 albertel 750: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 751: my $result;
1.310 foxr 752:
1.321 albertel 753: if (!$Apache::lonxml::metamode) {
754: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 755: $Apache::lonxml::post_evaluate=0;
1.321 albertel 756: }
1.319 foxr 757:
758: if ($target eq 'tex') {
1.321 albertel 759:
760: # Figure out the front matter and replace the
761: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
762: # this in end_problem because whether or not we display due
763: # dates depends on whether due dates have already been
764: # displayed in the problem parts.
765:
1.319 foxr 766: my $frontmatter = '';
767: my $startminipage = '';
768: if (not $env{'form.problem_split'}=~/yes/) {
769: $startminipage = '\begin{minipage}{\textwidth}';
770: }
771: my $id = $Apache::inputtags::part;
772: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
773: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
774: my @packages = split /,/,$packages;
775: my $allow_print_points = 0;
776: foreach my $partial_key (@packages) {
777: if ($partial_key=~m/^part_0$/) {
778: $allow_print_points=1;
779: }
780: }
781: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
782: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
783: if (lc($env{'course.'.$env{'request.course.id'}.
784: '.disableexampointprint'}) eq 'yes') {
785: $allow_print_points=0;
786: }
787: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
788: 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 ';
789: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
790: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
791:
792: # Figure out what the due date is and if we need to print
793: # it in the problem header. We have been logging the
794: # last due date written to file.
795:
796: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
797: my $duedate = POSIX::strftime("%c",localtime($duetime));
798: my $temp_file;
799: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
800:
801: # Figure out what the last printed due date is or set it
802: # to the epoch if no duedates have been printed.
803:
804: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
805: if (-e $filename) {
806: $temp_file = Apache::File->new($filename);
807: my @due_file = <$temp_file>;
808: $due_file_content = $due_file[$#due_file];
809: chomp $due_file_content;
810: }
811:
812: # We display the due date iff it is not the same as the last
813: # duedate in problem header ($due_file_content), and
814: # none of our parts displayed a duedate.
815: #
816: my $parts_with_displayduedate;
817: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
818: $parts_with_displayduedate =
819: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
820: } else {
821: $parts_with_displayduedate = 0;
822: }
823: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
824: $temp_file = Apache::File->new('>'.$filename);
825: print $temp_file "$duetime\n";
826: if (not $env{'request.symb'} =~ m/\.page_/) {
827: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
828: $frontmatter .= $begin_doc.
829: '\textit{Due date: '.$duedate.'} '.$toc_line;
830: } else {
831: $frontmatter.= $begin_doc.$toc_line;
832: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
833: }
834: } else {
835: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
836: }
837: } else {
838: if (not $env{'request.symb'} =~ m/\.page_/) {
839: $frontmatter .= $begin_doc.$toc_line;
840: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
841: } else {
842: $frontmatter .= '\vskip 1mm \\\\\\\\';
843: }
844: }
845: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
846: }
847:
1.159 albertel 848: my $status=$Apache::inputtags::status['-1'];
849: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
850: $target eq 'tex') {
1.249 albertel 851: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 852: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 853: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
854: &Apache::inputtags::grade;
1.324 albertel 855: } elsif ($status eq 'NEEDS_CHECKIN') {
856: # no need to grade, and don't want to hide data
1.249 albertel 857: } else {
858: # move any submission data to .hidden
859: &Apache::inputtags::hidealldata($Apache::inputtags::part);
860: }
1.159 albertel 861: } elsif ( ($target eq 'web' || $target eq 'tex') &&
862: $Apache::inputtags::part eq '0' &&
1.252 albertel 863: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 864: # if part is zero, no <part>s existed, so we need show the current
865: # grading status
866: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
867: $result.= $gradestatus;
868: }
869: if (
1.284 albertel 870: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 871: ($target eq 'answer') || ($target eq 'tex')
872: ) {
1.227 albertel 873: if ($target ne 'tex' &&
1.284 albertel 874: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 875: $result.="</form>";
1.348 albertel 876: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 877: }
878: if ($target eq 'web') {
1.346 albertel 879: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 880: } elsif ($target eq 'tex') {
1.178 sakharuk 881: my $endminipage = '';
1.284 albertel 882: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 883: $endminipage = '\end{minipage}';
884: }
1.284 albertel 885: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 886: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 887: } else {
1.262 sakharuk 888: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 889: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 890: $result .= $endminipage.'\end{document} ';
891: } else {
892: $result .= '';
893: }
1.159 albertel 894: }
895: }
896: }
897: if ($target eq 'grade') {
898: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
899: &finalize_storage();
900: }
1.284 albertel 901: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
902: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 903: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 904: # normally we get it from above, but in CSTR
1.172 albertel 905: # we always show answer mode too.
1.159 albertel 906: }
907: } elsif ($target eq 'meta') {
908: if ($Apache::inputtags::part eq '0') {
1.179 albertel 909: @Apache::inputtags::response=();
1.159 albertel 910: $result=&Apache::response::mandatory_part_meta;
911: }
1.215 albertel 912: $result.=&Apache::response::meta_part_order();
1.258 albertel 913: $result.=&Apache::response::meta_response_order();
1.159 albertel 914: } elsif ($target eq 'edit') {
915: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 916: $result .= &problem_edit_footer();
1.320 albertel 917: } elsif ($target eq 'modified') {
918: $result .= $token->[2];
919: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 920: }
1.155 albertel 921:
1.284 albertel 922: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 923: &Apache::inputtags::check_for_duplicate_ids();
924: }
1.204 albertel 925:
926: &reset_problem_globals('problem');
1.159 albertel 927:
928: return $result;
1.48 albertel 929: }
930:
1.108 albertel 931:
1.48 albertel 932: sub start_library {
1.159 albertel 933: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 934: my ($result,$form_tag_start);
1.244 albertel 935: if ($$tagstack[0] eq 'library') {
936: &init_problem_globals('library');
937: $Apache::lonhomework::type='problem';
938: }
1.159 albertel 939: if ($target eq 'edit') {
1.343 albertel 940: ($result,$form_tag_start)=
941: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
942: 'Edit');
943: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 944: my $temp=&Apache::edit::insertlist($target,$token);
945: $result.=$temp;
946: } elsif ($target eq 'modified') {
947: $result=$token->[4];
948: $result.=&Apache::edit::handle_insert();
1.340 albertel 949: } elsif (($target eq 'web' || $target eq 'webgrade')
950: && $$tagstack[0] eq 'library'
951: && $env{'request.state'} eq "construct" ) {
1.159 albertel 952: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 953: ($result,$form_tag_start)=
954: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
955: $name);
1.159 albertel 956: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 957: $result.=" \n $form_tag_start".
1.159 albertel 958: '<input type="hidden" name="submitted" value="yes" />';
959: $result.=&problem_web_to_edit_header($rndseed);
960: }
961: return $result;
1.48 albertel 962: }
963:
964: sub end_library {
1.159 albertel 965: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
966: my $result='';
967: if ($target eq 'edit') {
968: $result=&problem_edit_footer();
969: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 970: $env{'request.state'} eq "construct") {
1.349 albertel 971: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 972: }
1.204 albertel 973: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 974: return $result;
1.197 www 975: }
976:
977: sub start_definetag {
1.326 albertel 978: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 979:
980: my $result;
981:
982: my $name = $token->[2]->{'name'};
1.326 albertel 983: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 984: if ($name=~/^\//) {
985: $result=
986: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
987: } else {
988: $result=
989: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
990: }
991: $skip=~s/\</\<\;/gs;
992: $skip=~s/\>/\>\;/gs;
993: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
994: return $result;
995: }
996:
997: sub end_definetag {
998: return '';
1.1 albertel 999: }
1000:
1001: sub start_block {
1.201 albertel 1002: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1003:
1004: my $result;
1.1 albertel 1005:
1.339 albertel 1006: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1007: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1008: my $code = $token->[2]->{'condition'};
1.201 albertel 1009: if (defined($code)) {
1.137 albertel 1010: if (!$Apache::lonxml::default_homework_loaded) {
1011: &Apache::lonxml::default_homework_load($safeeval);
1012: }
1.131 albertel 1013: $result = &Apache::run::run($code,$safeeval);
1014: &Apache::lonxml::debug("block :$code: returned :$result:");
1015: } else {
1016: $result='1';
1017: }
1018: if ( ! $result ) {
1.201 albertel 1019: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1020: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1021: }
1022: $result='';
1023: } elsif ($target eq 'edit') {
1024: $result .=&Apache::edit::tag_start($target,$token);
1025: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1026: $token,40);
1027: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1028: } elsif ($target eq 'modified') {
1029: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1030: $safeeval,'condition');
1031: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1032: }
1.131 albertel 1033: return $result;
1.1 albertel 1034: }
1035:
1036: sub end_block {
1.167 www 1037: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1038: my $result;
1039: if ($target eq "edit") {
1040: $result.= &Apache::edit::tag_end($target,$token,'');
1041: }
1042: return $result;
1043: }
1044:
1045: sub start_languageblock {
1.201 albertel 1046: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1047:
1048: my $result;
1049:
1.339 albertel 1050: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1051: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1052: my $include = $token->[2]->{'include'};
1053: my $exclude = $token->[2]->{'exclude'};
1054: my %languages=&Apache::loncommon::display_languages();
1055: $result='1';
1056: if ($include) {
1057: $result='';
1058: foreach (split(/\,/,$include)) {
1059: if ($languages{$_}) { $result='1'; }
1060: }
1061: }
1062: if ($exclude) {
1063: foreach (split(/\,/,$exclude)) {
1064: if ($languages{$_}) { $result='0'; }
1065: }
1066: }
1067: if ( ! $result ) {
1068: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1069: $style);
1070: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1071: }
1072: $result='';
1.167 www 1073: } elsif ($target eq 'edit') {
1074: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1075: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1076: $token,40);
1.211 albertel 1077: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1078: $token,40);
1079: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1080: } elsif ($target eq 'modified') {
1081: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1082: $safeeval,'include',
1083: 'exclude');
1.167 www 1084: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1085: }
1086: return $result;
1087: }
1088:
1089: sub end_languageblock {
1.170 www 1090: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1091: my $result;
1.201 albertel 1092: if ($target eq "edit") {
1.170 www 1093: $result.= &Apache::edit::tag_end($target,$token,'');
1094: }
1095: return $result;
1096: }
1097:
1098: sub start_instructorcomment {
1.201 albertel 1099: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1100:
1101: my $result;
1102:
1.339 albertel 1103: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1104: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1105: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1106: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1107: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1108: $parser,$style);
1.170 www 1109: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1110: }
1111: $result='';
1112: } elsif ($target eq 'edit') {
1113: $result .=&Apache::edit::tag_start($target,$token);
1114: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1115: }
1116: return $result;
1117: }
1118:
1119: sub end_instructorcomment {
1.159 albertel 1120: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1121: my $result;
1122: if ($target eq "edit") {
1123: $result.= &Apache::edit::tag_end($target,$token,'');
1124: }
1125: return $result;
1.4 tsai 1126: }
1127:
1128: sub start_while {
1.326 albertel 1129: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1130:
1.160 albertel 1131: my $result;
1.339 albertel 1132: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1133: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1134: my $code = $token->[2]->{'condition'};
1.4 tsai 1135:
1.160 albertel 1136: push( @Apache::structuretags::whileconds, $code);
1137: if (!$Apache::lonxml::default_homework_loaded) {
1138: &Apache::lonxml::default_homework_load($safeeval);
1139: }
1140: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1141: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1142: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1143: push( @Apache::structuretags::whileline, $token->[5]);
1144: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1145: if ( $result ) {
1146: &Apache::lonxml::newparser($parser,\$bodytext);
1147: }
1148: } elsif ($target eq 'edit') {
1149: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1150: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1151: $token,40);
1152: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1153: } elsif ($target eq 'modified') {
1154: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1155: $safeeval,'condition');
1156: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1157: }
1.160 albertel 1158: return $result;
1.4 tsai 1159: }
1160:
1161: sub end_while {
1.159 albertel 1162: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1163: my $result;
1164:
1.339 albertel 1165: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1166: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1167: my $code = pop(@Apache::structuretags::whileconds);
1168: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1169: my $line = pop(@Apache::structuretags::whileline);
1170: my $return = &Apache::run::run($code,$safeeval);
1171: my $starttime=time;
1172: my $error=0;
1173: while ($return) {
1174: if (time-$starttime >
1175: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1176: #$return = 0; $error=1; next;
1.161 albertel 1177: }
1178: $result.=&Apache::scripttag::xmlparse($bodytext);
1179: $return = &Apache::run::run($code,$safeeval);
1180: }
1181: if ($error) {
1.270 albertel 1182: &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 1183: }
1184: } elsif ($target eq "edit") {
1185: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1186: }
1.160 albertel 1187: return $result;
1.1 albertel 1188: }
1.6 tsai 1189:
1.160 albertel 1190: # <randomlist show="1">
1.6 tsai 1191: # <tag1>..</tag1>
1192: # <tag2>..</tag2>
1193: # <tag3>..</tag3>
1.160 albertel 1194: # ...
1.6 tsai 1195: # </randomlist>
1196: sub start_randomlist {
1.326 albertel 1197: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1198: my $result;
1.339 albertel 1199: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1200: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1201: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1202: my $b_parser= HTML::LCParser->new(\$body);
1203: $b_parser->xml_mode(1);
1204: $b_parser->marked_sections(1);
1.159 albertel 1205: my $b_tok;
1206: my @randomlist;
1207: my $list_item;
1208: while($b_tok = $b_parser->get_token() ) {
1209: if($b_tok->[0] eq 'S') { # start tag
1210: # get content of the tag until matching end tag
1211: # get all text upto the matching tag
1212: # and push the content into @randomlist
1213: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1214: $b_parser);
1215: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1216: push(@randomlist,$list_item);
1217: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1218: # $list_item</b>";
1219: }
1220: if($b_tok->[0] eq 'T') { # text
1221: # what to do with text in between tags?
1222: # print "<b>TEXT $b_tok->[1]</b><br />";
1223: }
1224: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1225: # print "<b>END-TAG $b_tok->[1]</b><br />";
1226: # }
1227: }
1.303 albertel 1228: if (@randomlist) {
1229: my @idx_arr = (0 .. $#randomlist);
1230: &Apache::structuretags::shuffle(\@idx_arr);
1231: my $bodytext = '';
1232: my $show=$#randomlist;
1233: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1234: $showarg--;
1235: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1236: for(0 .. $show) {
1237: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1238: }
1239: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1240: }
1241: } elsif ($target eq 'edit' ) {
1242: $result .=&Apache::edit::tag_start($target,$token);
1243: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1244: $token,5);
1245: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1246: } elsif ($target eq 'modified' ) {
1247: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1248: $safeeval,'show');
1249: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1250: }
1251: return $result;
1.7 tsai 1252: }
1253:
1254: sub shuffle {
1255: my $a=shift;
1256: my $i;
1.303 albertel 1257: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1258: &Apache::response::pushrandomnumber();
1.159 albertel 1259: for($i=@$a;--$i;) {
1260: my $j=int(&Math::Random::random_uniform() * ($i+1));
1261: next if $i == $j;
1262: @$a[$i,$j] = @$a[$j,$i];
1263: }
1.251 albertel 1264: &Apache::response::poprandomnumber();
1.7 tsai 1265: }
1.6 tsai 1266: }
1267:
1268: sub end_randomlist {
1.159 albertel 1269: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1270: my $result;
1271: if ($target eq 'edit' ) {
1272: $result=&Apache::edit::tag_end($target,$token,
1273: 'End Randomly Parsed Block');
1274: }
1275: return $result;
1.6 tsai 1276: }
1277:
1.283 albertel 1278: sub ordered_show_check {
1279: my $last_part=$Apache::inputtags::partlist[-2];
1280: my $in_order=
1281: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1282: my $in_order_show=1;
1283: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1284: $in_order_show=&Apache::response::check_status($last_part);
1285: }
1286: return $in_order_show;
1287: }
1288:
1.11 albertel 1289: sub start_part {
1.326 albertel 1290: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1291: if (!$Apache::lonxml::metamode) {
1292: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1293: # duedates.
1294: }
1.159 albertel 1295: my $result='';
1296: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1297: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1298: $Apache::inputtags::part=$id;
1.177 albertel 1299: push(@Apache::inputtags::partlist,$id);
1300: @Apache::inputtags::response=();
1.159 albertel 1301: @Apache::inputtags::previous=();
1302: @Apache::inputtags::previous_version=();
1.241 albertel 1303: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1304: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1305: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1306: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1307: my $in_order_show=&ordered_show_check();
1.214 albertel 1308: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1309: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1310: &Apache::run::run($expression,$safeeval);
1.159 albertel 1311:
1312: if ($target eq 'meta') {
1.224 www 1313: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1314: return &Apache::response::mandatory_part_meta.
1315: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1316: } elsif ($target eq 'web' || $target eq 'grade' ||
1317: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1318: if ($hidden || !$in_order_show) {
1.326 albertel 1319: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1320: } else {
1321: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1322: push (@Apache::inputtags::status,$status);
1323: my $expression='$external::datestatus="'.$status.'";';
1324: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1325: &Apache::run::run($expression,$safeeval);
1.284 albertel 1326: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1327: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1328: }
1.216 albertel 1329: if (( $status eq 'CLOSED' ) ||
1330: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1331: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1332: ( $status eq 'BANNED') ||
1333: ( $status eq 'UNAVAILABLE') ||
1334: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1335: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1336: $style);
1.159 albertel 1337: if ( $target eq "web" ) {
1.211 albertel 1338: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1339: } elsif ( $target eq 'tex' ) {
1.284 albertel 1340: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1341: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1342: } else {
1.211 albertel 1343: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1344: }
1.159 albertel 1345: }
1346: } else {
1347: if ($target eq 'tex') {
1.284 albertel 1348: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1349: if ($$tagstack[-2] eq 'td') {
1350: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1351: } else {
1352: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1353: }
1.195 sakharuk 1354: }
1.159 albertel 1355: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1356: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1357: my @allkeys = split /,/,$allkeys;
1358: my $allow_print_points = 0;
1359: foreach my $partial_key (@allkeys) {
1.230 albertel 1360: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1361: if ($1 ne '0') {$allow_print_points=1;}
1362: }
1363: }
1.275 albertel 1364: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1365: if (defined($maxtries) && $maxtries < 0) {
1366: $allow_print_points=0;
1367: }
1.302 albertel 1368: if (lc($env{'course.'.$env{'request.course.id'}.
1369: '.disableexampointprint'}) eq 'yes') {
1370: $allow_print_points=0;
1371: }
1.222 sakharuk 1372: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1373: } elsif ($target eq 'web') {
1374: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1375: }
1376: }
1377: }
1378: } elsif ($target eq 'edit') {
1379: $result.=&Apache::edit::tag_start($target,$token);
1380: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1381: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1382: ' '.
1383: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1384: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1385: } elsif ($target eq 'modified') {
1386: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1387: $safeeval,'id','display');
1.159 albertel 1388: if ($constructtag) {
1.225 albertel 1389: #limiting ids to only letters numbers, and space
1.224 www 1390: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1391: $result = &Apache::edit::rebuild_tag($token);
1392: $result.=&Apache::edit::handle_insert();
1393: }
1394: }
1395: return $result;
1.11 albertel 1396: }
1397:
1398: sub end_part {
1.159 albertel 1399: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1400: &Apache::lonxml::debug("in end_part $target ");
1401: my $status=$Apache::inputtags::status['-1'];
1402: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1403: my $in_order_show=&ordered_show_check();
1.321 albertel 1404: my $result;
1405: if (!$Apache::lonxml::metamode) {
1406: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1407: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1408: }
1.312 albertel 1409: if ($target eq 'grade') {
1.249 albertel 1410: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1411: !$hidden && $in_order_show) {
1.311 foxr 1412: $result.=&Apache::inputtags::grade;
1.249 albertel 1413: } else {
1414: # move any submission data to .hidden
1415: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1416: }
1.283 albertel 1417: } elsif (($target eq 'web' || $target eq 'tex') &&
1418: !$hidden && $in_order_show) {
1.159 albertel 1419: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1420: $target);
1.212 albertel 1421: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1422: $gradestatus='';
1423: }
1.311 foxr 1424: $result.=$gradestatus;
1.265 sakharuk 1425: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1426: } elsif ($target eq 'edit') {
1.311 foxr 1427: $result.=&Apache::edit::end_table();
1.322 albertel 1428: } elsif ($target eq 'modified') {
1429: $result .= $token->[2];
1430: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 1431: }
1432: pop @Apache::inputtags::status;
1433: $Apache::inputtags::part='';
1.295 albertel 1434: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1435: return $result;
1.11 albertel 1436: }
1.1 albertel 1437:
1.25 albertel 1438: sub start_preduedate {
1.326 albertel 1439: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1440: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1441: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1442: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1443: if (!$Apache::lonhomework::scantronmode &&
1444: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1445: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1446: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1447: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1448: }
1.24 albertel 1449: }
1.159 albertel 1450: return '';
1.24 albertel 1451: }
1452:
1.25 albertel 1453: sub end_preduedate {
1.159 albertel 1454: return '';
1.24 albertel 1455: }
1456:
1.25 albertel 1457: sub start_postanswerdate {
1.326 albertel 1458: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1459: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade') {
1.300 albertel 1460: if ($Apache::lonhomework::scantronmode ||
1461: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.326 albertel 1462: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1463: }
1464: } elsif ($target eq 'tex') {
1.326 albertel 1465: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1466: }
1467: return '';
1.24 albertel 1468: }
1469:
1.25 albertel 1470: sub end_postanswerdate {
1.159 albertel 1471: return '';
1.24 albertel 1472: }
1473:
1.25 albertel 1474: sub start_notsolved {
1.326 albertel 1475: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1476: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1477: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1478: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1479: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1480: if ($gradestatus =~ /^correct/ &&
1481: &Apache::response::show_answer()) {
1.159 albertel 1482: &Apache::lonxml::debug("skipping");
1.326 albertel 1483: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1484: }
1.24 albertel 1485: }
1.159 albertel 1486: return '';
1.24 albertel 1487: }
1488:
1.25 albertel 1489: sub end_notsolved {
1.159 albertel 1490: return '';
1.24 albertel 1491: }
1492:
1493: sub start_solved {
1.326 albertel 1494: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1495: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1496: $target eq 'tex') {
1497: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1498: if ($gradestatus !~ /^correct/ ||
1499: !&Apache::response::show_answer()) {
1.326 albertel 1500: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1501: }
1.24 albertel 1502: }
1.159 albertel 1503: return '';
1.24 albertel 1504: }
1505:
1506: sub end_solved {
1.248 albertel 1507: return '';
1508: }
1509:
1510: sub start_problemtype {
1.326 albertel 1511: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1512: my $result;
1.339 albertel 1513: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1514: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1515: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1516: if (!defined($mode)) { $mode='show'; }
1517: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1518: my $found=0;
1519: foreach my $type (split(',',$for)) {
1520: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1521: }
1522: if ($mode eq 'show' && !$found) {
1.326 albertel 1523: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1524: }
1525: if ($mode eq 'hide' && $found) {
1.326 albertel 1526: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1527: }
1528: } elsif ($target eq 'edit') {
1529: $result .=&Apache::edit::tag_start($target,$token);
1530: $result.=&Apache::edit::select_arg('Mode:','mode',
1531: [['show','Show'],
1532: ['hide','Hide']]
1533: ,$token);
1534: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1535: [ ['exam','Exam/Quiz Problem'],
1536: ['survey','Survey'],
1537: ['problem','Homework Problem'] ]
1538: ,$token);
1539: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1540: } elsif ($target eq 'modified') {
1541: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1542: $safeeval,'mode','for');
1543: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1544: }
1545: return $result;
1546: }
1547:
1548: sub end_problemtype {
1.159 albertel 1549: return '';
1.24 albertel 1550: }
1.34 albertel 1551:
1552: sub start_startouttext {
1.159 albertel 1553: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1554: my @result=(''.'');
1555: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1556: return (@result);
1.34 albertel 1557: }
1.159 albertel 1558:
1.34 albertel 1559: sub end_startouttext {
1.326 albertel 1560: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1561: my $result='';
1562: my $text='';
1563:
1564: if ($target eq 'edit') {
1.326 albertel 1565: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1566: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1567: <td>".&mt('Delete:').
1.159 albertel 1568: &Apache::edit::deletelist($target,$token)
1569: ."</td>
1.42 albertel 1570: <td>".
1.159 albertel 1571: &Apache::edit::insertlist($target,$token).
1572: &Apache::edit::end_row().
1573: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1574: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1575: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1576: }
1577: if ($target eq 'modified') {
1.219 albertel 1578: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1579: }
1580: if ($target eq 'tex') {
1581: $result .= '\noindent ';
1582: }
1583: return $result;
1.34 albertel 1584: }
1.159 albertel 1585:
1.34 albertel 1586: sub start_endouttext {
1.159 albertel 1587: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1588: my $result='';
1589: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1590: if ($target eq "modified") {
1591: $result='<endouttext />'.
1592: &Apache::edit::handle_insertafter('startouttext'); }
1593: return $result;
1.34 albertel 1594: }
1.159 albertel 1595:
1.34 albertel 1596: sub end_endouttext {
1.159 albertel 1597: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1598: my @result=('','');
1599: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1600: return (@result);
1.34 albertel 1601: }
1.159 albertel 1602:
1.45 albertel 1603: sub delete_startouttext {
1.326 albertel 1604: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1605: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1606: my $text=$$parser['-1']->get_text("/endouttext");
1607: my $ntoken=$$parser['-1']->get_token();
1608: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1609: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1610: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1611: # they did the last time round
1612: &Apache::lonxml::increasedepth($ntoken);
1613: &Apache::lonxml::decreasedepth($ntoken);
1614: return 1;
1.193 www 1615: }
1616:
1617: sub start_simpleeditbutton {
1618: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1619: my $result='';
1.284 albertel 1620: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1621: ($target eq 'web') &&
1.330 albertel 1622: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1623: my $url=$env{'request.noversionuri'};
1.193 www 1624: $url=~s/\?.*$//;
1.278 albertel 1625: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1626: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1627: '<a href="'.$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 1628: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1629: }
1630: return $result;
1631: }
1632:
1633: sub end_simpleeditbutton {
1634: return '';
1.45 albertel 1635: }
1.34 albertel 1636:
1.1 albertel 1637: 1;
1638: __END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>