Annotation of loncom/homework/structuretags.pm, revision 1.313
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.313 ! albertel 4: # $Id: structuretags.pm,v 1.312 2005/11/03 17:55:12 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;
1.267 albertel 39: use Time::HiRes qw( gettimeofday tv_interval );
1.78 harris41 40: BEGIN {
1.248 albertel 41: &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 42: }
43:
44: sub start_web {
1.159 albertel 45: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.200 albertel 46: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser);
47: if ($target eq 'web') {
48: return $bodytext;
1.159 albertel 49: }
50: return '';
1.10 albertel 51: }
52:
53: sub end_web {
1.44 ng 54: return '';
1.10 albertel 55: }
56:
57: sub start_tex {
1.159 albertel 58: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.198 sakharuk 59: my $result='';
1.200 albertel 60: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser);
61: if ($target eq 'tex') {
62: return $bodytext.' ';
1.159 albertel 63: }
1.198 sakharuk 64: return $result;;
1.10 albertel 65: }
66:
67: sub end_tex {
1.44 ng 68: return '';
1.9 albertel 69: }
70:
1.290 albertel 71: sub body_tag_start {
72: my ($target,$background,$bgcolor)=@_;
73: my $body_tag_start='<body onload="'.&Apache::lonmenu::loadevents().'" '.
74: 'onunload="'.&Apache::lonmenu::unloadevents().'" ';
75: if ($env{'browser.imagesuppress'} eq 'on') { $background=''; }
76: if ($background) {
1.306 albertel 77: &Apache::lonxml::extlink($background);
1.290 albertel 78: $body_tag_start.='background="'.$background.'" ';
79: } else {
80: if (($bgcolor) && ($env{'browser.blackwhite'} ne 'on')) {
81: $body_tag_start.='bgcolor="'.$bgcolor.'" ';
82: } else {
83: $body_tag_start.='bgcolor="#ffffff"';
84: }
85: }
86: if ($env{'browser.fontenhance'} eq 'on') {
87: $body_tag_start.=' style="font-size: x-large;" ';
88: }
89: $body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1);
1.297 albertel 90:
91: &Apache::lontexconvert::jsMath_reset();
1.290 albertel 92: if ($env{'environment.texengine'} eq 'jsMath') {
1.297 albertel 93: $body_tag_start.=&Apache::lontexconvert::jsMath_header();
1.290 albertel 94: }
95: return $body_tag_start;
96: }
1.291 albertel 97:
1.48 albertel 98: sub page_start {
1.159 albertel 99: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
100: my %found;
1.207 albertel 101: foreach my $taginside (@$tagstack) {
1.159 albertel 102: foreach my $taglookedfor ('html','body','form') {
103: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
104: }
105: }
106:
107: my $result;
108: my $head_tag_start;
109: if (!defined($found{'html'})) {
110: $result=&Apache::londefdef::start_html($target,$token,$tagstack,
111: $parstack,$parser,$safeeval);
1.254 www 112: $head_tag_start='<head>'.&Apache::lonmenu::registerurl(undef,$target).
1.261 www 113: &Apache::lonhtmlcommon::htmlareaheaders().
1.270 albertel 114: &Apache::lonhtmlcommon::spellheader().
115: &Apache::lonxml::fontsettings();
1.159 albertel 116: }
117: my $body_tag_start;
1.284 albertel 118: if (!defined($found{'body'}) && $env{'request.state'} eq 'construct'
119: && $env{'environment.remote'} eq 'off') {
1.298 albertel 120: if ($target eq 'web' || $target eq 'edit') {
1.297 albertel 121: $body_tag_start=&Apache::loncommon::bodytag();
122: $body_tag_start.=&Apache::lonxml::message_location();
123: }
1.272 albertel 124: } elsif (!defined($found{'body'})) {
1.159 albertel 125: my $background=&Apache::lonxml::get_param('background',$parstack,
126: $safeeval);
1.290 albertel 127: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
128: $safeeval);
1.299 albertel 129: $body_tag_start=&body_tag_start($target,$background,$bgcolor);
1.291 albertel 130: if ( ($target eq 'web' || $target eq 'webgrade')
131: && $env{'request.state'} ne 'construct') {
1.165 albertel 132: my ($symb,undef,undef,undef,$publicuser)=
133: &Apache::lonxml::whichuser();
134: if ($symb eq '' && !$publicuser) {
1.159 albertel 135: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
1.211 albertel 136: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
1.159 albertel 137: $body_tag_start.=$help;
138: }
139: }
1.245 albertel 140: $body_tag_start.=&Apache::lonxml::message_location();
1.159 albertel 141: }
142: my $form_tag_start;
143: if (!defined($found{'form'})) {
1.281 albertel 144: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="POST" action="';
1.284 albertel 145: my $uri=$env{'request.uri'};
146: if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
1.271 albertel 147: $form_tag_start.=$uri.'">';
1.159 albertel 148: }
149: return ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.105 albertel 150: }
151:
1.141 matthew 152: #use Time::HiRes();
1.105 albertel 153: sub get_resource_name {
1.159 albertel 154: my ($parstack,$safeeval)=@_;
1.204 albertel 155: if (defined($Apache::lonhomework::name)) {
156: return $Apache::lonhomework::name;
157: }
1.279 albertel 158: my ($symb)=&Apache::lonxml::whichuser();
159: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 160: if ($name eq '') {
161: $name=&Apache::lonnet::EXT('resource.title');
162: if ($name eq 'con_lost') { $name = ''; }
163: }
1.204 albertel 164: if ($name!~/\S+/) {
1.284 albertel 165: $name=$env{'request.uri'};
1.205 albertel 166: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 167: }
1.159 albertel 168: $Apache::lonhomework::name=$name;
169: return $name;
1.105 albertel 170: }
171:
172: sub setup_rndseed {
1.159 albertel 173: my ($safeeval)=@_;
174: my $rndseed;
1.162 albertel 175: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 176: if ($env{'request.state'} eq "construct" || $symb eq '' ||
1.247 albertel 177: $Apache::lonhomework::history{'resource.CODE'}) {
1.284 albertel 178: $rndseed=$env{'form.rndseed'};
1.159 albertel 179: if (!$rndseed) {
1.162 albertel 180: $rndseed=$Apache::lonhomework::history{'rndseed'};
181: if (!$rndseed) {
182: $rndseed=time;
183: }
1.284 albertel 184: $env{'form.rndseed'}=$rndseed;
1.162 albertel 185: }
1.284 albertel 186: if ($env{'form.resetdata'} eq &mt('New Problem Variation') ||
187: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 188: srand(time);
189: $rndseed=int(rand(2100000000));
1.284 albertel 190: $env{'form.rndseed'}=$rndseed;
191: delete($env{'form.resetdata'});
192: delete($env{'form.newrandomization'});
1.159 albertel 193: }
1.187 albertel 194: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 195: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 196: }
1.247 albertel 197: if ($Apache::lonhomework::history{'resource.CODE'}) {
198: $rndseed=&Apache::lonnet::rndseed();
199: }
1.221 albertel 200: if ($safeeval) {
201: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 202: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 203: }
1.159 albertel 204: }
205: return $rndseed;
1.105 albertel 206: }
207:
1.268 albertel 208: sub remember_problem_state {
209: return '
1.284 albertel 210: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
211: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
212: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 213: }
214:
1.105 albertel 215: sub problem_edit_header {
1.268 albertel 216: return '<input type="hidden" name="submitted" value="edit" />'.
217: &Apache::structuretags::remember_problem_state().'
1.210 albertel 218: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 219: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
220: <input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
221: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
222: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
223: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.260 albertel 224: &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
225: .'</td></tr></table>'.
1.282 albertel 226: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 227: }
228:
229: sub problem_edit_footer {
1.210 albertel 230: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 231: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
232: &Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).
1.280 albertel 233: "\n</form>\n".&Apache::loncommon::endbodytag()."\n</html>";
1.105 albertel 234: }
235:
1.235 albertel 236: sub option {
237: my ($value,$name) = @_;
238: my $result ="<option value='".$value."' ";
1.284 albertel 239: if ($env{'form.'.$name} eq $value) {
1.235 albertel 240: $result.=" selected='on' ";
241: }
242: $result.='>';
243: return $result;
244: }
245:
1.105 albertel 246: sub problem_web_to_edit_header {
1.159 albertel 247: my ($rndseed)=@_;
1.313 ! albertel 248: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
! 249: if (!$Apache::lonhomework::parsing_a_task) {
! 250: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
! 251: }
! 252: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 253: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
254: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 255: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 256: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 257: $rndseed.'"
1.270 albertel 258: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 259: <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 260: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.228 www 261: $result.= ' />'.&mt(' Show All Foils').
262: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.281 albertel 263: '</label><hr />';
1.313 ! albertel 264: if (!$Apache::lonhomework::parsing_a_task) {
! 265: $result.="
1.235 albertel 266: <nobr>
267: Problem Status:
268: <select name='problemstate'>
1.270 albertel 269: <option value=''></option>
1.235 albertel 270: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
271: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
272: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
273: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
274: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
275: </select>
276: </nobr>
277: <nobr>
278: Problem Type:
279: <select name='problemtype'>
1.270 albertel 280: <option value=''></option>
1.242 albertel 281: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
282: ".&option('problem','problemtype').&mt("Homework problem")."</option>
283: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 284: </select>
285: </nobr>
286: <nobr>
287: Feedback Mode:
288: <select name='problemstatus'>
289: <option value=''></option>
1.242 albertel 290: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
291: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 292: </select>
293: </nobr>
1.242 albertel 294: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 295: <hr />";
1.313 ! albertel 296: my $numtoanalyze=$env{'form.numtoanalyze'};
! 297: if (!$numtoanalyze) { $numtoanalyze=20; }
! 298: $result.= '<input type="submit" name="problemmode" value='.
! 299: &mt('"Calculate answers').'" /> for
1.136 albertel 300: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 301: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
302: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 303: '',undef,undef,300).
1.210 albertel 304: '<hr />';
1.313 ! albertel 305: }
1.159 albertel 306: return $result;
1.48 albertel 307: }
308:
1.65 albertel 309: sub initialize_storage {
1.159 albertel 310: %Apache::lonhomework::results=();
1.162 albertel 311: %Apache::lonhomework::history=();
1.159 albertel 312: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.284 albertel 313: if ($env{'request.state'} eq 'construct' || $symb eq '') {
1.159 albertel 314: %Apache::lonhomework::history=
1.284 albertel 315: &Apache::lonnet::tmprestore($env{'request.uri'},'',$domain,$name);
1.159 albertel 316: my ($temp)=keys %Apache::lonhomework::history ;
317: &Apache::lonxml::debug("Return message of $temp");
318: } else {
319: %Apache::lonhomework::history=
320: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
321: }
322: #ignore error conditions
1.67 albertel 323: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 324: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 325: }
326:
327: # -------------------------------------------------------------finalize_storage
328: # Stores away the result has to a student's environment
329: # checks form.grade_ for specific values, other wises stores
330: # to the running users environment
1.285 raeburn 331: # Will increment totals for attempts, students, and corrects
332: # if running user has student role.
1.65 albertel 333: sub finalize_storage {
1.159 albertel 334: my $result;
1.289 albertel 335: if (%Apache::lonhomework::results) {
1.159 albertel 336: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.284 albertel 337: if ($env{'request.state'} eq 'construct' || $symb eq '') {
338: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 339: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.284 albertel 340: $env{'request.uri'},'',$domain,$name);
1.159 albertel 341: &Apache::lonxml::debug('Construct Store return message:'.$result);
342: } else {
343: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
344: $symb,$courseid,$domain,$name);
345: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 346: if ($env{'request.role'} =~/^st/) {
347: &store_aggregates($symb,$courseid);
348: }
1.159 albertel 349: }
1.67 albertel 350: }
1.159 albertel 351: return $result;
1.65 albertel 352: }
1.289 albertel 353: use Data::Dumper;
1.65 albertel 354:
1.285 raeburn 355: # -------------------------------------------------------------store_aggregates
356: # Sends hash of values to be incremented in nohist_resourcetracker.db
357: # for the course. Increments total number of attempts, unique students
358: # and corrects for each part for an instance of a problem, as appropriate.
359: sub store_aggregates {
360: my ($symb,$courseid) = @_;
1.286 albertel 361: my %aggregate;
362: my @parts;
1.288 albertel 363: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
364: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 365: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 366: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 367: push(@parts, $1);
1.285 raeburn 368: }
369: }
1.286 albertel 370: foreach my $part (@parts) {
371: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
372: eq 'APPROX_ANS' ||
373: $Apache::lonhomework::results{'resource.'.$part.'.award'}
374: eq 'EXACT_ANS') {
1.287 albertel 375: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 376: }
1.286 albertel 377: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 378: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 379: } else {
1.293 albertel 380: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 381: if ($last_reset) {
1.293 albertel 382: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 383: $aggregate{$symb."\0".$part."\0users"} = 1;
384: }
385: }
1.285 raeburn 386: }
1.287 albertel 387: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 388: }
1.292 raeburn 389: if (keys (%aggregate) > 0) {
1.289 albertel 390: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 391: $cdomain,$cname);
392: }
393: }
1.289 albertel 394:
1.65 albertel 395: sub checkout_msg {
1.211 albertel 396: my %lt=&Apache::lonlocal::texthash(
397: 'resource'=>'The resource needs to be checked out',
398: '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.',
399: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
400: 'checkout'=>'Check out Exam for Viewing',
401: 'checkout?'=>'Check out Exam?');
1.159 albertel 402: return (<<ENDCHECKOUT);
1.211 albertel 403: <h2>$lt{'resource'}</h2>
404: <p>$lt{'id_expln'}</p>
405: <font color="red">
406: <p>$lt{'warning'}</p>
1.91 albertel 407: </font>
1.284 albertel 408: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.91 albertel 409: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 410: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 411: </form>
412: ENDCHECKOUT
413: }
414:
1.252 albertel 415: sub firstaccess_msg {
1.253 albertel 416: my ($time,$symb)=@_;
417: my ($map)=&Apache::lonnet::decode_symb($symb);
418: my $foldertitle=&Apache::lonnet::gettitle($map);
419: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.252 albertel 420: return (<<ENDCHECKOUT);
1.253 albertel 421: <h2>The resources in "$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 422: <form name="markaccess" method="POST" action="$env{'request.uri'}">
1.252 albertel 423: <input type="hidden" name="markaccess" value="yes" />
424: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
425: </form>
426: ENDCHECKOUT
427: }
428:
1.204 albertel 429: sub init_problem_globals {
430: my ($type)=@_;
431: #initialize globals
1.308 foxr 432: # For problems, we start out in part 0 (outside a <part> tag).
433: # and part 0 is used to describe the main body of the <problem>
434: #
1.204 albertel 435: if ($type eq 'problem') {
436: $Apache::inputtags::part='0';
437: @Apache::inputtags::partlist=('0');
1.266 albertel 438: $Apache::lonhomework::problemstatus=&get_problem_status('0');
439: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 440:
1.266 albertel 441: } elsif ($type eq 'library') {
1.204 albertel 442: $Apache::inputtags::part='';
443: @Apache::inputtags::partlist=();
444: $Apache::lonhomework::problemstatus='';
1.266 albertel 445: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 446:
1.304 albertel 447: } elsif ($type eq 'Task') {
448: $Apache::inputtags::part='0';
449: @Apache::inputtags::partlist=('0');
450: $Apache::lonhomework::problemstatus='';
451: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 452: }
453: @Apache::inputtags::responselist = ();
454: @Apache::inputtags::importlist = ();
455: @Apache::inputtags::previous=();
456: @Apache::inputtags::previous_version=();
457: $Apache::structuretags::printanswer='No';
458: @Apache::structuretags::whileconds=();
459: @Apache::structuretags::whilebody=();
460: @Apache::structuretags::whileline=();
461: $Apache::lonhomework::scantronmode=0;
462: undef($Apache::lonhomework::name);
463:
464: }
465:
466: sub reset_problem_globals {
467: my ($type)=@_;
468: undef(%Apache::lonhomework::history);
469: undef(%Apache::lonhomework::results);
470: undef($Apache::inputtags::part);
1.208 albertel 471: #don't undef this, lonhomework.pm takes care of this, we use this to
472: #detect if we try to do 2 problems in one file
473: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 474: undef($Apache::lonhomework::name);
475: }
476:
1.241 albertel 477: sub set_problem_state {
1.240 albertel 478: my ($part)=@_;
1.284 albertel 479: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 480: $Apache::lonhomework::history{"resource.$part.solved"}=
481: 'correct_by_student';
482: }
483: }
484:
1.241 albertel 485: sub get_problem_status {
486: my ($part)=@_;
1.267 albertel 487: my $problem_status;
1.284 albertel 488: if ($env{'request.state'} eq 'construct' &&
489: defined($env{'form.problemstatus'})) {
490: $problem_status=$env{'form.problemstatus'};
1.267 albertel 491: } else {
492: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
493: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 494: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 495: }
496: return $problem_status;
497: }
498:
1.9 albertel 499: sub start_problem {
1.159 albertel 500: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 501:
1.311 foxr 502: # We'll use the redirection to fix up printing of duedates.
1.312 albertel 503: &Apache::lonxml::startredirection();
1.311 foxr 504:
1.308 foxr 505: # Problems don't nest and we don't allow more than one <problem> in
506: # a .problem file.
507: #
1.184 albertel 508: if ( $Apache::inputtags::part ne '' ||
509: $Apache::lonhomework::parsing_a_problem) {
510: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
511: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
1.159 albertel 512: return '';
513: }
1.184 albertel 514:
515: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 516: &init_problem_globals('problem');
1.166 albertel 517:
1.284 albertel 518: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 519: $Apache::lonhomework::scantronmode=1;
520: }
1.161 albertel 521:
1.246 albertel 522: &initialize_storage();
1.159 albertel 523: if ($target ne 'analyze') {
524: if ($target eq 'web') {
525: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 526: }
1.284 albertel 527: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 528: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 529: if (($env{'request.state'} eq 'construct') &&
530: defined($env{'form.problemtype'})) {
531: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 532: }
1.240 albertel 533: &Apache::lonxml::debug("Found this to be of type :$Apache::ltonhomework::type:");
1.159 albertel 534: }
1.164 albertel 535: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 536: my $uri=$env{'request.uri'};
1.159 albertel 537: if ($uri=~/\.(\w+)$/) {
538: $Apache::lonhomework::type=$1;
539: &Apache::lonxml::debug("Using type of $1");
540: } else {
541: $Apache::lonhomework::type='problem';
542: &Apache::lonxml::debug("Using default type, problem, :$uri:");
543: }
1.87 albertel 544: }
1.301 albertel 545: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 546:
1.159 albertel 547: #added vars to the scripting enviroment
1.213 albertel 548: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 549: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 550: &Apache::run::run($expression,$safeeval);
1.159 albertel 551: my $status;
552: my $accessmsg;
553:
554: #should get back a <html> or the neccesary stuff to start XML/MathML
555: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
556: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.284 albertel 557: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 558:
559: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
560: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
561: $target eq 'tex') {
562: #handle exam checkout
563: if ($Apache::lonhomework::type eq 'exam') {
564: my $token=
565: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 566: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 567: $token=&Apache::lonxml::maketoken();
568: $Apache::lonhomework::history{"resource.0.outtoken"}=
569: $token;
570: }
571: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 572: }
1.284 albertel 573: if ($env{'form.markaccess'}) {
1.252 albertel 574: &Apache::lonnet::set_first_access('map');
575: }
1.159 albertel 576: #handle rand seed in construction space
577: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 578: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 579: if ($env{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 580: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
581: $rndseed.'" />'.
582: '<input type="submit" name="resetdata"
1.211 albertel 583: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 584: '<input type="hidden" name="username"
1.284 albertel 585: value="'.$env{'form.username'}.'" />';
586: if ($env{'user.adv'}) {
1.267 albertel 587: $form_tag_start.=
1.300 albertel 588: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 589: if (defined($env{'form.showallfoils'})) {
1.267 albertel 590: $form_tag_start.='checked="on"';
591: }
1.300 albertel 592: $form_tag_start.= ' />'.&mt(' Show All Foils').
593: '</label>';
1.267 albertel 594: }
595: $form_tag_start.='<hr />';
1.162 albertel 596: }
1.159 albertel 597: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
598: push (@Apache::inputtags::status,$status);
599: my $expression='$external::datestatus="'.$status.'";';
600: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
601: &Apache::run::run($expression,$safeeval);
602: &Apache::lonxml::debug("Got $status");
603: if (( $status eq 'CLOSED' ) ||
604: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 605: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 606: ( $status eq 'BANNED') ||
1.216 albertel 607: ( $status eq 'UNAVAILABLE') ||
608: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 609: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
610: if ( $target eq "web" ) {
611: $result.= $head_tag_start.'</head>';
612: my $msg=$body_tag_start;
613: if ($status eq 'UNAVAILABLE') {
1.245 albertel 614: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 615: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 616: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 617: }
1.216 albertel 618: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 619: $msg.='The problem '.$accessmsg;
620: } elsif ($status eq 'UNCHECKEDOUT') {
621: $msg.=&checkout_msg;
1.252 albertel 622: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 623: $msg.=&firstaccess_msg($accessmsg,$symb);
1.159 albertel 624: }
625: $result.=$msg.'<br />';
626: } elsif ($target eq 'tex') {
627: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
628: if ($status eq 'UNAVAILABLE') {
1.211 albertel 629: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 630: } else {
1.211 albertel 631: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 632: }
633: }
634: } elsif ($target eq 'web') {
635: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 636: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 637: $body_tag_start \n $form_tag_start".
1.227 albertel 638: '<input type="hidden" name="submitted" value="yes" />';
639: # create a page header and exit
1.284 albertel 640: if ($env{'request.state'} eq "construct") {
641: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 642: }
643: # if we are viewing someone else preserve that info
1.284 albertel 644: if (defined $env{'form.grade_symb'}) {
1.227 albertel 645: foreach my $field ('symb','courseid','domain','username') {
646: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 647: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 648: }
649: }
650: } elsif ($target eq 'tex') {
1.192 sakharuk 651: my $startminipage = '';
1.284 albertel 652: if (not $env{'form.problem_split'}=~/yes/) {
1.192 sakharuk 653: $startminipage = '\begin{minipage}{\textwidth}';
1.178 sakharuk 654: }
1.159 albertel 655: my $id = $Apache::inputtags::part;
656: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 657: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.223 sakharuk 658: my @packages = split /,/,$packages;
659: my $allow_print_points = 0;
660: foreach my $partial_key (@packages) {
1.230 albertel 661: if ($partial_key=~m/^part_0$/) {
1.223 sakharuk 662: $allow_print_points=1;
1.159 albertel 663: }
664: }
1.276 albertel 665: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
666: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1.302 albertel 667: if (lc($env{'course.'.$env{'request.course.id'}.
668: '.disableexampointprint'}) eq 'yes') {
669: $allow_print_points=0;
670: }
1.308 foxr 671: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
672: 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 ';
673: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
674: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
675:
1.312 albertel 676: # Figure out what the due date is and if we need to print
677: # it in the problem header. We have been logging the
678: # last due date written to file.
1.308 foxr 679:
680: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
681: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.159 albertel 682: my $temp_file;
1.284 albertel 683: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1.308 foxr 684:
1.312 albertel 685: # Figure out what the last printed due date is or set it
686: # to the epoch if no duedates have been printed.
1.308 foxr 687:
688: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1.159 albertel 689: if (-e $filename) {
690: $temp_file = Apache::File->new($filename);
1.308 foxr 691: my @due_file = <$temp_file>;
692: $due_file_content = $due_file[$#due_file];
693: chomp $due_file_content;
694: }
1.312 albertel 695:
696: # comparisons of the absolute times
1.309 foxr 697: if ($due_file_content != $duetime) {
1.159 albertel 698: $temp_file = Apache::File->new('>'.$filename);
1.308 foxr 699: print $temp_file "$duetime\n";
1.284 albertel 700: if (not $env{'request.symb'} =~ m/\.page_/) {
1.159 albertel 701: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1.304 albertel 702: $result .= $begin_doc.
703: '\textit{Due date: '.$duedate.'} '.$toc_line;
1.159 albertel 704: } else {
1.304 albertel 705: $result .= $begin_doc.$toc_line;
1.159 albertel 706: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
707: }
1.104 sakharuk 708: } else {
1.159 albertel 709: $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
1.104 sakharuk 710: }
1.101 sakharuk 711: } else {
1.284 albertel 712: if (not $env{'request.symb'} =~ m/\.page_/) {
1.304 albertel 713: $result .= $begin_doc.$toc_line;
1.159 albertel 714: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
715: } else {
716: $result .= '\vskip 1mm \\\\\\\\';
717: }
718: }
1.99 sakharuk 719: }
1.159 albertel 720: } elsif ($target eq 'edit') {
721: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
722: &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)=@_;
1.312 albertel 739: my $result= &Apache::lonxml::endredirection(); # started in &start_problem
1.310 foxr 740:
1.159 albertel 741: my $status=$Apache::inputtags::status['-1'];
742: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
743: $target eq 'tex') {
1.249 albertel 744: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 745: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 746: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
747: &Apache::inputtags::grade;
748: } else {
749: # move any submission data to .hidden
750: &Apache::inputtags::hidealldata($Apache::inputtags::part);
751: }
1.159 albertel 752: } elsif ( ($target eq 'web' || $target eq 'tex') &&
753: $Apache::inputtags::part eq '0' &&
1.252 albertel 754: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 755: # if part is zero, no <part>s existed, so we need show the current
756: # grading status
757: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
758: $result.= $gradestatus;
759: }
760: if (
1.284 albertel 761: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 762: ($target eq 'answer') || ($target eq 'tex')
763: ) {
1.227 albertel 764: if ($target ne 'tex' &&
1.284 albertel 765: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 766: $result.="</form>";
767: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
1.159 albertel 768: }
769: if ($target eq 'web') {
1.281 albertel 770: $result.=&Apache::lonxml::xmlend().'</html>';
1.159 albertel 771: } elsif ($target eq 'tex') {
1.178 sakharuk 772: my $endminipage = '';
1.284 albertel 773: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 774: $endminipage = '\end{minipage}';
775: }
1.284 albertel 776: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 777: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 778: $result=~s/<\/html>//;
1.159 albertel 779: } else {
1.262 sakharuk 780: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 781: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 782: $result .= $endminipage.'\end{document} ';
783: } else {
784: $result .= '';
785: }
1.159 albertel 786: }
787: }
788: }
789: if ($target eq 'grade') {
790: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
791: &finalize_storage();
792: }
1.284 albertel 793: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
794: && $env{'form.answer_output_mode'} ne 'tex') {
1.294 albertel 795: $result.=&Apache::lonxml::xmlend().'</html>';
796: # normally we get it from above, but in CSTR
1.172 albertel 797: # we always show answer mode too.
1.159 albertel 798: }
799: } elsif ($target eq 'meta') {
800: if ($Apache::inputtags::part eq '0') {
1.179 albertel 801: @Apache::inputtags::response=();
1.159 albertel 802: $result=&Apache::response::mandatory_part_meta;
803: }
1.215 albertel 804: $result.=&Apache::response::meta_part_order();
1.258 albertel 805: $result.=&Apache::response::meta_response_order();
1.159 albertel 806: } elsif ($target eq 'edit') {
807: &Apache::lonxml::debug("in end_problem with $target, edit");
808: $result = &problem_edit_footer();
809: }
1.155 albertel 810:
1.284 albertel 811: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 812: &Apache::inputtags::check_for_duplicate_ids();
813: }
1.204 albertel 814:
815: &reset_problem_globals('problem');
1.159 albertel 816:
817: return $result;
1.48 albertel 818: }
819:
1.108 albertel 820:
1.48 albertel 821: sub start_library {
1.159 albertel 822: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
823: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 824: if ($$tagstack[0] eq 'library') {
825: &init_problem_globals('library');
826: $Apache::lonhomework::type='problem';
827: }
1.159 albertel 828: if ($target eq 'edit') {
829: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
830: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
831: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
832: &problem_edit_header();
833: my $temp=&Apache::edit::insertlist($target,$token);
834: $result.=$temp;
835: } elsif ($target eq 'modified') {
836: $result=$token->[4];
837: $result.=&Apache::edit::handle_insert();
838: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 839: $env{'request.state'} eq "construct" ) {
1.159 albertel 840: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
841: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
842: my $name=&get_resource_name($parstack,$safeeval);
843: my $rndseed=&setup_rndseed($safeeval);
844: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 845: $body_tag_start \n $form_tag_start".
1.159 albertel 846: '<input type="hidden" name="submitted" value="yes" />';
847: $result.=&problem_web_to_edit_header($rndseed);
848: }
849: return $result;
1.48 albertel 850: }
851:
852: sub end_library {
1.159 albertel 853: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
854: my $result='';
855: if ($target eq 'edit') {
856: $result=&problem_edit_footer();
857: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 858: $env{'request.state'} eq "construct") {
1.280 albertel 859: $result.='</form>'.&Apache::loncommon::endbodytag().
860: &Apache::lonxml::xmlend();
1.159 albertel 861: }
1.204 albertel 862: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 863: return $result;
1.197 www 864: }
865:
866: sub start_definetag {
867: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
868:
869: my $result;
870:
871: my $name = $token->[2]->{'name'};
872: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
873: if ($name=~/^\//) {
874: $result=
875: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
876: } else {
877: $result=
878: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
879: }
880: $skip=~s/\</\<\;/gs;
881: $skip=~s/\>/\>\;/gs;
882: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
883: return $result;
884: }
885:
886: sub end_definetag {
887: return '';
1.1 albertel 888: }
889:
890: sub start_block {
1.201 albertel 891: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 892:
893: my $result;
1.1 albertel 894:
1.160 albertel 895: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 896: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 897: my $code = $token->[2]->{'condition'};
1.201 albertel 898: if (defined($code)) {
1.137 albertel 899: if (!$Apache::lonxml::default_homework_loaded) {
900: &Apache::lonxml::default_homework_load($safeeval);
901: }
1.131 albertel 902: $result = &Apache::run::run($code,$safeeval);
903: &Apache::lonxml::debug("block :$code: returned :$result:");
904: } else {
905: $result='1';
906: }
907: if ( ! $result ) {
1.201 albertel 908: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 909: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
910: }
911: $result='';
912: } elsif ($target eq 'edit') {
913: $result .=&Apache::edit::tag_start($target,$token);
914: $result .=&Apache::edit::text_arg('Test Condition:','condition',
915: $token,40);
916: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
917: } elsif ($target eq 'modified') {
918: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
919: $safeeval,'condition');
920: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 921: }
1.131 albertel 922: return $result;
1.1 albertel 923: }
924:
925: sub end_block {
1.167 www 926: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
927: my $result;
928: if ($target eq "edit") {
929: $result.= &Apache::edit::tag_end($target,$token,'');
930: }
931: return $result;
932: }
933:
934: sub start_languageblock {
1.201 albertel 935: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 936:
937: my $result;
938:
939: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
940: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 941: my $include = $token->[2]->{'include'};
942: my $exclude = $token->[2]->{'exclude'};
943: my %languages=&Apache::loncommon::display_languages();
944: $result='1';
945: if ($include) {
946: $result='';
947: foreach (split(/\,/,$include)) {
948: if ($languages{$_}) { $result='1'; }
949: }
950: }
951: if ($exclude) {
952: foreach (split(/\,/,$exclude)) {
953: if ($languages{$_}) { $result='0'; }
954: }
955: }
956: if ( ! $result ) {
957: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
958: $style);
959: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
960: }
961: $result='';
1.167 www 962: } elsif ($target eq 'edit') {
963: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 964: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 965: $token,40);
1.211 albertel 966: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 967: $token,40);
968: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
969: } elsif ($target eq 'modified') {
970: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 971: $safeeval,'include',
972: 'exclude');
1.167 www 973: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
974: }
975: return $result;
976: }
977:
978: sub end_languageblock {
1.170 www 979: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
980: my $result;
1.201 albertel 981: if ($target eq "edit") {
1.170 www 982: $result.= &Apache::edit::tag_end($target,$token,'');
983: }
984: return $result;
985: }
986:
987: sub start_instructorcomment {
1.201 albertel 988: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 989:
990: my $result;
991:
992: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
993: $target eq 'tex' || $target eq 'analyze') {
1.284 albertel 994: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
995: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 996: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
997: $parser,$style);
1.170 www 998: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
999: }
1000: $result='';
1001: } elsif ($target eq 'edit') {
1002: $result .=&Apache::edit::tag_start($target,$token);
1003: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1004: }
1005: return $result;
1006: }
1007:
1008: sub end_instructorcomment {
1.159 albertel 1009: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1010: my $result;
1011: if ($target eq "edit") {
1012: $result.= &Apache::edit::tag_end($target,$token,'');
1013: }
1014: return $result;
1.4 tsai 1015: }
1016:
1017: sub start_while {
1.159 albertel 1018: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1019:
1.160 albertel 1020: my $result;
1.161 albertel 1021: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 1022: $target eq 'tex' || $target eq 'analyze') {
1023: my $code = $token->[2]->{'condition'};
1.4 tsai 1024:
1.160 albertel 1025: push( @Apache::structuretags::whileconds, $code);
1026: if (!$Apache::lonxml::default_homework_loaded) {
1027: &Apache::lonxml::default_homework_load($safeeval);
1028: }
1029: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 1030: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 1031: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1032: push( @Apache::structuretags::whileline, $token->[5]);
1033: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1034: if ( $result ) {
1035: &Apache::lonxml::newparser($parser,\$bodytext);
1036: }
1037: } elsif ($target eq 'edit') {
1038: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1039: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1040: $token,40);
1041: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1042: } elsif ($target eq 'modified') {
1043: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1044: $safeeval,'condition');
1045: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1046: }
1.160 albertel 1047: return $result;
1.4 tsai 1048: }
1049:
1050: sub end_while {
1.159 albertel 1051: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1052: my $result;
1053:
1054: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1055: $target eq 'tex' || $target eq 'analyze') {
1056: my $code = pop(@Apache::structuretags::whileconds);
1057: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1058: my $line = pop(@Apache::structuretags::whileline);
1059: my $return = &Apache::run::run($code,$safeeval);
1060: my $starttime=time;
1061: my $error=0;
1062: while ($return) {
1063: if (time-$starttime >
1064: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1065: #$return = 0; $error=1; next;
1.161 albertel 1066: }
1067: $result.=&Apache::scripttag::xmlparse($bodytext);
1068: $return = &Apache::run::run($code,$safeeval);
1069: }
1070: if ($error) {
1.270 albertel 1071: &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 1072: }
1073: } elsif ($target eq "edit") {
1074: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1075: }
1.160 albertel 1076: return $result;
1.1 albertel 1077: }
1.6 tsai 1078:
1.160 albertel 1079: # <randomlist show="1">
1.6 tsai 1080: # <tag1>..</tag1>
1081: # <tag2>..</tag2>
1082: # <tag3>..</tag3>
1.160 albertel 1083: # ...
1.6 tsai 1084: # </randomlist>
1085: sub start_randomlist {
1.159 albertel 1086: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1087: my $result;
1088: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1089: $target eq 'tex' || $target eq 'analyze') {
1090: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1091: my $b_parser= HTML::LCParser->new(\$body);
1092: $b_parser->xml_mode(1);
1093: $b_parser->marked_sections(1);
1.159 albertel 1094: my $b_tok;
1095: my @randomlist;
1096: my $list_item;
1097: while($b_tok = $b_parser->get_token() ) {
1098: if($b_tok->[0] eq 'S') { # start tag
1099: # get content of the tag until matching end tag
1100: # get all text upto the matching tag
1101: # and push the content into @randomlist
1102: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1103: $b_parser);
1104: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1105: push(@randomlist,$list_item);
1106: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1107: # $list_item</b>";
1108: }
1109: if($b_tok->[0] eq 'T') { # text
1110: # what to do with text in between tags?
1111: # print "<b>TEXT $b_tok->[1]</b><br />";
1112: }
1113: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1114: # print "<b>END-TAG $b_tok->[1]</b><br />";
1115: # }
1116: }
1.303 albertel 1117: if (@randomlist) {
1118: my @idx_arr = (0 .. $#randomlist);
1119: &Apache::structuretags::shuffle(\@idx_arr);
1120: my $bodytext = '';
1121: my $show=$#randomlist;
1122: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1123: $showarg--;
1124: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1125: for(0 .. $show) {
1126: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1127: }
1128: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1129: }
1130: } elsif ($target eq 'edit' ) {
1131: $result .=&Apache::edit::tag_start($target,$token);
1132: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1133: $token,5);
1134: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1135: } elsif ($target eq 'modified' ) {
1136: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1137: $safeeval,'show');
1138: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1139: }
1140: return $result;
1.7 tsai 1141: }
1142:
1143: sub shuffle {
1144: my $a=shift;
1145: my $i;
1.303 albertel 1146: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1147: &Apache::response::pushrandomnumber();
1.159 albertel 1148: for($i=@$a;--$i;) {
1149: my $j=int(&Math::Random::random_uniform() * ($i+1));
1150: next if $i == $j;
1151: @$a[$i,$j] = @$a[$j,$i];
1152: }
1.251 albertel 1153: &Apache::response::poprandomnumber();
1.7 tsai 1154: }
1.6 tsai 1155: }
1156:
1157: sub end_randomlist {
1.159 albertel 1158: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1159: my $result;
1160: if ($target eq 'edit' ) {
1161: $result=&Apache::edit::tag_end($target,$token,
1162: 'End Randomly Parsed Block');
1163: }
1164: return $result;
1.6 tsai 1165: }
1166:
1.283 albertel 1167: sub ordered_show_check {
1168: my $last_part=$Apache::inputtags::partlist[-2];
1169: my $in_order=
1170: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1171: my $in_order_show=1;
1172: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1173: $in_order_show=&Apache::response::check_status($last_part);
1174: }
1175: return $in_order_show;
1176: }
1177:
1.11 albertel 1178: sub start_part {
1.159 albertel 1179: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.312 albertel 1180: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1181: # duedates.
1.159 albertel 1182: my $result='';
1183: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1184: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1185: $Apache::inputtags::part=$id;
1.177 albertel 1186: push(@Apache::inputtags::partlist,$id);
1187: @Apache::inputtags::response=();
1.159 albertel 1188: @Apache::inputtags::previous=();
1189: @Apache::inputtags::previous_version=();
1.241 albertel 1190: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1191: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1192: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1193: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1194: my $in_order_show=&ordered_show_check();
1.214 albertel 1195: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1196: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1197: &Apache::run::run($expression,$safeeval);
1.159 albertel 1198:
1199: if ($target eq 'meta') {
1.224 www 1200: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1201: return &Apache::response::mandatory_part_meta.
1202: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1203: } elsif ($target eq 'web' || $target eq 'grade' ||
1204: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1205: if ($hidden || !$in_order_show) {
1.159 albertel 1206: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1207: } else {
1208: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1209: push (@Apache::inputtags::status,$status);
1210: my $expression='$external::datestatus="'.$status.'";';
1211: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1212: &Apache::run::run($expression,$safeeval);
1.284 albertel 1213: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1214: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1215: }
1.216 albertel 1216: if (( $status eq 'CLOSED' ) ||
1217: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1218: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1219: ( $status eq 'BANNED') ||
1220: ( $status eq 'UNAVAILABLE') ||
1221: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 1222: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1223: if ( $target eq "web" ) {
1.211 albertel 1224: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1225: } elsif ( $target eq 'tex' ) {
1.284 albertel 1226: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1227: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1228: } else {
1.211 albertel 1229: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1230: }
1.159 albertel 1231: }
1232: } else {
1233: if ($target eq 'tex') {
1.284 albertel 1234: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1235: if ($$tagstack[-2] eq 'td') {
1236: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1237: } else {
1238: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1239: }
1.195 sakharuk 1240: }
1.159 albertel 1241: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1242: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1243: my @allkeys = split /,/,$allkeys;
1244: my $allow_print_points = 0;
1245: foreach my $partial_key (@allkeys) {
1.230 albertel 1246: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1247: if ($1 ne '0') {$allow_print_points=1;}
1248: }
1249: }
1.275 albertel 1250: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1251: if (defined($maxtries) && $maxtries < 0) {
1252: $allow_print_points=0;
1253: }
1.302 albertel 1254: if (lc($env{'course.'.$env{'request.course.id'}.
1255: '.disableexampointprint'}) eq 'yes') {
1256: $allow_print_points=0;
1257: }
1.222 sakharuk 1258: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1259: } elsif ($target eq 'web') {
1260: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1261: }
1262: }
1263: }
1264: } elsif ($target eq 'edit') {
1265: $result.=&Apache::edit::tag_start($target,$token);
1266: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1267: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1268: ' '.
1269: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1270: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1271: } elsif ($target eq 'modified') {
1272: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1273: $safeeval,'id','display');
1.159 albertel 1274: if ($constructtag) {
1.225 albertel 1275: #limiting ids to only letters numbers, and space
1.224 www 1276: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1277: $result = &Apache::edit::rebuild_tag($token);
1278: $result.=&Apache::edit::handle_insert();
1279: }
1280: }
1281: return $result;
1.11 albertel 1282: }
1283:
1284: sub end_part {
1.159 albertel 1285: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1286: &Apache::lonxml::debug("in end_part $target ");
1287: my $status=$Apache::inputtags::status['-1'];
1288: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1289: my $in_order_show=&ordered_show_check();
1.312 albertel 1290: my $result= &Apache::lonxml::endredirection(); # started in &start_part
1291: if ($target eq 'grade') {
1.249 albertel 1292: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1293: !$hidden && $in_order_show) {
1.311 foxr 1294: $result.=&Apache::inputtags::grade;
1.249 albertel 1295: } else {
1296: # move any submission data to .hidden
1297: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1298: }
1.283 albertel 1299: } elsif (($target eq 'web' || $target eq 'tex') &&
1300: !$hidden && $in_order_show) {
1.159 albertel 1301: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1302: $target);
1.212 albertel 1303: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1304: $gradestatus='';
1305: }
1.311 foxr 1306: $result.=$gradestatus;
1.265 sakharuk 1307: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1308: } elsif ($target eq 'edit') {
1.311 foxr 1309: $result.=&Apache::edit::end_table();
1.159 albertel 1310: }
1311: pop @Apache::inputtags::status;
1312: $Apache::inputtags::part='';
1.295 albertel 1313: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1314: return $result;
1.11 albertel 1315: }
1.1 albertel 1316:
1.25 albertel 1317: sub start_preduedate {
1.159 albertel 1318: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1319: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1.236 albertel 1320: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1321: if (!$Apache::lonhomework::scantronmode &&
1322: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1323: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1324: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.159 albertel 1325: &Apache::lonxml::get_all_text("/preduedate",$parser);
1326: }
1.24 albertel 1327: }
1.159 albertel 1328: return '';
1.24 albertel 1329: }
1330:
1.25 albertel 1331: sub end_preduedate {
1.159 albertel 1332: return '';
1.24 albertel 1333: }
1334:
1.25 albertel 1335: sub start_postanswerdate {
1.159 albertel 1336: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.234 albertel 1337: if ($target eq 'web' || $target eq 'grade') {
1.300 albertel 1338: if ($Apache::lonhomework::scantronmode ||
1339: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.159 albertel 1340: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1341: }
1342: } elsif ($target eq 'tex') {
1.234 albertel 1343: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1.159 albertel 1344: }
1345: return '';
1.24 albertel 1346: }
1347:
1.25 albertel 1348: sub end_postanswerdate {
1.159 albertel 1349: return '';
1.24 albertel 1350: }
1351:
1.25 albertel 1352: sub start_notsolved {
1.159 albertel 1353: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1354: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1355: $target eq 'tex') {
1356: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1357: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1358: if ($gradestatus =~ /^correct/ &&
1359: &Apache::response::show_answer()) {
1.159 albertel 1360: &Apache::lonxml::debug("skipping");
1361: &Apache::lonxml::get_all_text("/notsolved",$parser);
1362: }
1.24 albertel 1363: }
1.159 albertel 1364: return '';
1.24 albertel 1365: }
1366:
1.25 albertel 1367: sub end_notsolved {
1.159 albertel 1368: return '';
1.24 albertel 1369: }
1370:
1371: sub start_solved {
1.159 albertel 1372: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1373: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1374: $target eq 'tex') {
1375: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1376: if ($gradestatus !~ /^correct/ ||
1377: !&Apache::response::show_answer()) {
1.159 albertel 1378: &Apache::lonxml::get_all_text("/solved",$parser);
1379: }
1.24 albertel 1380: }
1.159 albertel 1381: return '';
1.24 albertel 1382: }
1383:
1384: sub end_solved {
1.248 albertel 1385: return '';
1386: }
1387:
1388: sub start_problemtype {
1389: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1390: my $result;
1391: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1392: $target eq 'tex' || $target eq 'analyze') {
1393: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1394: if (!defined($mode)) { $mode='show'; }
1395: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1396: my $found=0;
1397: foreach my $type (split(',',$for)) {
1398: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1399: }
1400: if ($mode eq 'show' && !$found) {
1401: &Apache::lonxml::get_all_text("/problemtype",$parser);
1402: }
1403: if ($mode eq 'hide' && $found) {
1404: &Apache::lonxml::get_all_text("/problemtype",$parser);
1405: }
1406: } elsif ($target eq 'edit') {
1407: $result .=&Apache::edit::tag_start($target,$token);
1408: $result.=&Apache::edit::select_arg('Mode:','mode',
1409: [['show','Show'],
1410: ['hide','Hide']]
1411: ,$token);
1412: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1413: [ ['exam','Exam/Quiz Problem'],
1414: ['survey','Survey'],
1415: ['problem','Homework Problem'] ]
1416: ,$token);
1417: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1418: } elsif ($target eq 'modified') {
1419: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1420: $safeeval,'mode','for');
1421: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1422: }
1423: return $result;
1424: }
1425:
1426: sub end_problemtype {
1.159 albertel 1427: return '';
1.24 albertel 1428: }
1.34 albertel 1429:
1430: sub start_startouttext {
1.159 albertel 1431: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1432: my @result=(''.'');
1433: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1434: return (@result);
1.34 albertel 1435: }
1.159 albertel 1436:
1.34 albertel 1437: sub end_startouttext {
1.159 albertel 1438: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1439: my $result='';
1440: my $text='';
1441:
1442: if ($target eq 'edit') {
1443: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1.211 albertel 1444: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1445: <td>".&mt('Delete:').
1.159 albertel 1446: &Apache::edit::deletelist($target,$token)
1447: ."</td>
1.42 albertel 1448: <td>".
1.159 albertel 1449: &Apache::edit::insertlist($target,$token).
1450: &Apache::edit::end_row().
1451: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1452: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1453: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1454: }
1455: if ($target eq 'modified') {
1.219 albertel 1456: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1457: }
1458: if ($target eq 'tex') {
1459: $result .= '\noindent ';
1460: }
1461: return $result;
1.34 albertel 1462: }
1.159 albertel 1463:
1.34 albertel 1464: sub start_endouttext {
1.159 albertel 1465: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1466: my $result='';
1467: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1468: if ($target eq "modified") {
1469: $result='<endouttext />'.
1470: &Apache::edit::handle_insertafter('startouttext'); }
1471: return $result;
1.34 albertel 1472: }
1.159 albertel 1473:
1.34 albertel 1474: sub end_endouttext {
1.159 albertel 1475: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1476: my @result=('','');
1477: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1478: return (@result);
1.34 albertel 1479: }
1.159 albertel 1480:
1.45 albertel 1481: sub delete_startouttext {
1.159 albertel 1482: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1483: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1484: my $text=$$parser['-1']->get_text("/endouttext");
1485: my $ntoken=$$parser['-1']->get_token();
1486: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1487: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1488: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1489: # they did the last time round
1490: &Apache::lonxml::increasedepth($ntoken);
1491: &Apache::lonxml::decreasedepth($ntoken);
1492: return 1;
1.193 www 1493: }
1494:
1495: sub start_simpleeditbutton {
1496: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1497: my $result='';
1.284 albertel 1498: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1499: ($target eq 'web') &&
1.284 albertel 1500: (&Apache::lonnet::allowed('srm',$env{'request.course.id'}))) {
1501: my $url=$env{'request.noversionuri'};
1.193 www 1502: $url=~s/\?.*$//;
1.278 albertel 1503: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1504: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1505: '<a href="'.$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 1506: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1507: }
1508: return $result;
1509: }
1510:
1511: sub end_simpleeditbutton {
1512: return '';
1.45 albertel 1513: }
1.34 albertel 1514:
1.1 albertel 1515: 1;
1516: __END__
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