Annotation of loncom/homework/structuretags.pm, revision 1.290
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.290 ! albertel 4: # $Id: structuretags.pm,v 1.289 2005/04/22 17:15:33 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) {
! 77: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
! 78: $background;
! 79: $body_tag_start.='background="'.$background.'" ';
! 80: } else {
! 81: if (($bgcolor) && ($env{'browser.blackwhite'} ne 'on')) {
! 82: $body_tag_start.='bgcolor="'.$bgcolor.'" ';
! 83: } else {
! 84: $body_tag_start.='bgcolor="#ffffff"';
! 85: }
! 86: }
! 87: if ($env{'browser.fontenhance'} eq 'on') {
! 88: $body_tag_start.=' style="font-size: x-large;" ';
! 89: }
! 90: $body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1);
! 91: if ($env{'environment.texengine'} eq 'jsMath') {
! 92: $body_tag_start.='<script type="text/javascript">
! 93: function NoFontMessage () {}
! 94: </script>'."\n".
! 95: '<script src="/adm/jsMath/jsMath.js"></script>'."\n";
! 96: }
! 97: return $body_tag_start;
! 98: }
1.48 albertel 99: sub page_start {
1.159 albertel 100: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
101: my %found;
1.207 albertel 102: foreach my $taginside (@$tagstack) {
1.159 albertel 103: foreach my $taglookedfor ('html','body','form') {
104: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
105: }
106: }
107:
108: my $result;
109: my $head_tag_start;
110: if (!defined($found{'html'})) {
111: $result=&Apache::londefdef::start_html($target,$token,$tagstack,
112: $parstack,$parser,$safeeval);
1.254 www 113: $head_tag_start='<head>'.&Apache::lonmenu::registerurl(undef,$target).
1.261 www 114: &Apache::lonhtmlcommon::htmlareaheaders().
1.270 albertel 115: &Apache::lonhtmlcommon::spellheader().
116: &Apache::lonxml::fontsettings();
1.159 albertel 117: }
118: my $body_tag_start;
1.284 albertel 119: if (!defined($found{'body'}) && $env{'request.state'} eq 'construct'
120: && $env{'environment.remote'} eq 'off') {
1.272 albertel 121: $body_tag_start=&Apache::loncommon::bodytag();
1.274 albertel 122: $body_tag_start.=&Apache::lonxml::message_location();
1.272 albertel 123: } elsif (!defined($found{'body'})) {
1.159 albertel 124: my $background=&Apache::lonxml::get_param('background',$parstack,
125: $safeeval);
1.290 ! albertel 126: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
! 127: $safeeval);
! 128: $body_tag_start=&body_tag_start($background,$bgcolor);
1.284 albertel 129: if ($target eq 'web' && $env{'request.state'} ne 'construct') {
1.165 albertel 130: my ($symb,undef,undef,undef,$publicuser)=
131: &Apache::lonxml::whichuser();
132: if ($symb eq '' && !$publicuser) {
1.159 albertel 133: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
1.211 albertel 134: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
1.159 albertel 135: $body_tag_start.=$help;
136: }
137: }
1.245 albertel 138: $body_tag_start.=&Apache::lonxml::message_location();
1.159 albertel 139: }
140: my $form_tag_start;
141: if (!defined($found{'form'})) {
1.281 albertel 142: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="POST" action="';
1.284 albertel 143: my $uri=$env{'request.uri'};
144: if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
1.271 albertel 145: $form_tag_start.=$uri.'">';
1.159 albertel 146: }
147: return ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.105 albertel 148: }
149:
1.141 matthew 150: #use Time::HiRes();
1.105 albertel 151: sub get_resource_name {
1.159 albertel 152: my ($parstack,$safeeval)=@_;
1.204 albertel 153: if (defined($Apache::lonhomework::name)) {
154: return $Apache::lonhomework::name;
155: }
1.279 albertel 156: my ($symb)=&Apache::lonxml::whichuser();
157: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 158: if ($name eq '') {
159: $name=&Apache::lonnet::EXT('resource.title');
160: if ($name eq 'con_lost') { $name = ''; }
161: }
1.204 albertel 162: if ($name!~/\S+/) {
1.284 albertel 163: $name=$env{'request.uri'};
1.205 albertel 164: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 165: }
1.159 albertel 166: $Apache::lonhomework::name=$name;
167: return $name;
1.105 albertel 168: }
169:
170: sub setup_rndseed {
1.159 albertel 171: my ($safeeval)=@_;
172: my $rndseed;
1.162 albertel 173: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 174: if ($env{'request.state'} eq "construct" || $symb eq '' ||
1.247 albertel 175: $Apache::lonhomework::history{'resource.CODE'}) {
1.284 albertel 176: $rndseed=$env{'form.rndseed'};
1.159 albertel 177: if (!$rndseed) {
1.162 albertel 178: $rndseed=$Apache::lonhomework::history{'rndseed'};
179: if (!$rndseed) {
180: $rndseed=time;
181: }
1.284 albertel 182: $env{'form.rndseed'}=$rndseed;
1.162 albertel 183: }
1.284 albertel 184: if ($env{'form.resetdata'} eq &mt('New Problem Variation') ||
185: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 186: srand(time);
187: $rndseed=int(rand(2100000000));
1.284 albertel 188: $env{'form.rndseed'}=$rndseed;
189: delete($env{'form.resetdata'});
190: delete($env{'form.newrandomization'});
1.159 albertel 191: }
1.187 albertel 192: if (defined($rndseed) && $rndseed ne int($rndseed)) {
193: $rndseed=join(',',&Math::Random::random_seed_from_phrase($rndseed));
194: }
1.247 albertel 195: if ($Apache::lonhomework::history{'resource.CODE'}) {
196: $rndseed=&Apache::lonnet::rndseed();
197: }
1.221 albertel 198: if ($safeeval) {
199: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 200: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 201: }
1.159 albertel 202: }
203: return $rndseed;
1.105 albertel 204: }
205:
1.268 albertel 206: sub remember_problem_state {
207: return '
1.284 albertel 208: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
209: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
210: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 211: }
212:
1.105 albertel 213: sub problem_edit_header {
1.268 albertel 214: return '<input type="hidden" name="submitted" value="edit" />'.
215: &Apache::structuretags::remember_problem_state().'
1.210 albertel 216: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 217: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
218: <input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
219: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
220: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
221: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.260 albertel 222: &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
223: .'</td></tr></table>'.
1.282 albertel 224: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 225: }
226:
227: sub problem_edit_footer {
1.210 albertel 228: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 229: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
230: &Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).
1.280 albertel 231: "\n</form>\n".&Apache::loncommon::endbodytag()."\n</html>";
1.105 albertel 232: }
233:
1.235 albertel 234: sub option {
235: my ($value,$name) = @_;
236: my $result ="<option value='".$value."' ";
1.284 albertel 237: if ($env{'form.'.$name} eq $value) {
1.235 albertel 238: $result.=" selected='on' ";
239: }
240: $result.='>';
241: return $result;
242: }
243:
1.105 albertel 244: sub problem_web_to_edit_header {
1.159 albertel 245: my ($rndseed)=@_;
1.210 albertel 246: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />
1.243 matthew 247: <input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />
248: <input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
249: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
250: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 251: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 252: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 253: $rndseed.'"
1.270 albertel 254: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 255: <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 256: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.228 www 257: $result.= ' />'.&mt(' Show All Foils').
258: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.281 albertel 259: '</label><hr />';
1.235 albertel 260: $result.="
261: <nobr>
262: Problem Status:
263: <select name='problemstate'>
1.270 albertel 264: <option value=''></option>
1.235 albertel 265: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
266: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
267: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
268: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
269: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
270: </select>
271: </nobr>
272: <nobr>
273: Problem Type:
274: <select name='problemtype'>
1.270 albertel 275: <option value=''></option>
1.242 albertel 276: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
277: ".&option('problem','problemtype').&mt("Homework problem")."</option>
278: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 279: </select>
280: </nobr>
281: <nobr>
282: Feedback Mode:
283: <select name='problemstatus'>
284: <option value=''></option>
1.242 albertel 285: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
286: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 287: </select>
288: </nobr>
1.242 albertel 289: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 290: <hr />";
1.284 albertel 291: my $numtoanalyze=$env{'form.numtoanalyze'};
1.176 albertel 292: if (!$numtoanalyze) { $numtoanalyze=20; }
1.210 albertel 293: $result.= '<input type="submit" name="problemmode" value='.
294: &mt('"Calculate answers').'" /> for
1.136 albertel 295: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 296: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
297: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 298: '',undef,undef,300).
1.210 albertel 299: '<hr />';
1.159 albertel 300: return $result;
1.48 albertel 301: }
302:
1.65 albertel 303: sub initialize_storage {
1.159 albertel 304: %Apache::lonhomework::results=();
1.162 albertel 305: %Apache::lonhomework::history=();
1.159 albertel 306: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.284 albertel 307: if ($env{'request.state'} eq 'construct' || $symb eq '') {
1.159 albertel 308: %Apache::lonhomework::history=
1.284 albertel 309: &Apache::lonnet::tmprestore($env{'request.uri'},'',$domain,$name);
1.159 albertel 310: my ($temp)=keys %Apache::lonhomework::history ;
311: &Apache::lonxml::debug("Return message of $temp");
312: } else {
313: %Apache::lonhomework::history=
314: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
315: }
316: #ignore error conditions
1.67 albertel 317: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 318: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 319: }
320:
321: # -------------------------------------------------------------finalize_storage
322: # Stores away the result has to a student's environment
323: # checks form.grade_ for specific values, other wises stores
324: # to the running users environment
1.285 raeburn 325: # Will increment totals for attempts, students, and corrects
326: # if running user has student role.
1.65 albertel 327: sub finalize_storage {
1.159 albertel 328: my $result;
1.289 albertel 329: if (%Apache::lonhomework::results) {
1.159 albertel 330: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.284 albertel 331: if ($env{'request.state'} eq 'construct' || $symb eq '') {
332: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 333: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.284 albertel 334: $env{'request.uri'},'',$domain,$name);
1.159 albertel 335: &Apache::lonxml::debug('Construct Store return message:'.$result);
336: } else {
337: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
338: $symb,$courseid,$domain,$name);
339: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 340: if ($env{'request.role'} =~/^st/) {
341: &store_aggregates($symb,$courseid);
342: }
1.159 albertel 343: }
1.67 albertel 344: }
1.159 albertel 345: return $result;
1.65 albertel 346: }
1.289 albertel 347: use Data::Dumper;
1.65 albertel 348:
1.285 raeburn 349: # -------------------------------------------------------------store_aggregates
350: # Sends hash of values to be incremented in nohist_resourcetracker.db
351: # for the course. Increments total number of attempts, unique students
352: # and corrects for each part for an instance of a problem, as appropriate.
353: sub store_aggregates {
354: my ($symb,$courseid) = @_;
1.286 albertel 355: my %aggregate;
356: my @parts;
1.288 albertel 357: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
358: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 359: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 360: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 361: push(@parts, $1);
1.285 raeburn 362: }
363: }
1.286 albertel 364: foreach my $part (@parts) {
365: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
366: eq 'APPROX_ANS' ||
367: $Apache::lonhomework::results{'resource.'.$part.'.award'}
368: eq 'EXACT_ANS') {
1.287 albertel 369: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 370: }
1.286 albertel 371: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 372: $aggregate{$symb."\0".$part."\0users"} = 1;
1.285 raeburn 373: }
1.287 albertel 374: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 375: }
1.289 albertel 376: if (%aggregate) {
377: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
378: $cdomain,$cname);
379:
380: }
1.285 raeburn 381: }
382:
1.65 albertel 383: sub checkout_msg {
1.211 albertel 384: my %lt=&Apache::lonlocal::texthash(
385: 'resource'=>'The resource needs to be checked out',
386: '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.',
387: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
388: 'checkout'=>'Check out Exam for Viewing',
389: 'checkout?'=>'Check out Exam?');
1.159 albertel 390: return (<<ENDCHECKOUT);
1.211 albertel 391: <h2>$lt{'resource'}</h2>
392: <p>$lt{'id_expln'}</p>
393: <font color="red">
394: <p>$lt{'warning'}</p>
1.91 albertel 395: </font>
1.284 albertel 396: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.91 albertel 397: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 398: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 399: </form>
400: ENDCHECKOUT
401: }
402:
1.252 albertel 403: sub firstaccess_msg {
1.253 albertel 404: my ($time,$symb)=@_;
405: my ($map)=&Apache::lonnet::decode_symb($symb);
406: my $foldertitle=&Apache::lonnet::gettitle($map);
407: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.252 albertel 408: return (<<ENDCHECKOUT);
1.253 albertel 409: <h2>The resources in "$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 410: <form name="markaccess" method="POST" action="$env{'request.uri'}">
1.252 albertel 411: <input type="hidden" name="markaccess" value="yes" />
412: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
413: </form>
414: ENDCHECKOUT
415: }
416:
1.204 albertel 417: sub init_problem_globals {
418: my ($type)=@_;
419: #initialize globals
420: if ($type eq 'problem') {
421: $Apache::inputtags::part='0';
422: @Apache::inputtags::partlist=('0');
1.266 albertel 423: $Apache::lonhomework::problemstatus=&get_problem_status('0');
424: $Apache::lonhomework::ignore_response_errors=0;
425: } elsif ($type eq 'library') {
1.204 albertel 426: $Apache::inputtags::part='';
427: @Apache::inputtags::partlist=();
428: $Apache::lonhomework::problemstatus='';
1.266 albertel 429: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 430: }
431: @Apache::inputtags::responselist = ();
432: @Apache::inputtags::importlist = ();
433: @Apache::inputtags::previous=();
434: @Apache::inputtags::previous_version=();
435: $Apache::structuretags::printanswer='No';
436: @Apache::structuretags::whileconds=();
437: @Apache::structuretags::whilebody=();
438: @Apache::structuretags::whileline=();
439: $Apache::lonhomework::scantronmode=0;
440: undef($Apache::lonhomework::name);
441:
442: }
443:
444: sub reset_problem_globals {
445: my ($type)=@_;
446: undef(%Apache::lonhomework::history);
447: undef(%Apache::lonhomework::results);
448: undef($Apache::inputtags::part);
1.208 albertel 449: #don't undef this, lonhomework.pm takes care of this, we use this to
450: #detect if we try to do 2 problems in one file
451: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 452: undef($Apache::lonhomework::name);
453: }
454:
1.241 albertel 455: sub set_problem_state {
1.240 albertel 456: my ($part)=@_;
1.284 albertel 457: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 458: $Apache::lonhomework::history{"resource.$part.solved"}=
459: 'correct_by_student';
460: }
461: }
462:
1.241 albertel 463: sub get_problem_status {
464: my ($part)=@_;
1.267 albertel 465: my $problem_status;
1.284 albertel 466: if ($env{'request.state'} eq 'construct' &&
467: defined($env{'form.problemstatus'})) {
468: $problem_status=$env{'form.problemstatus'};
1.267 albertel 469: } else {
470: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
471: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 472: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 473: }
474: return $problem_status;
475: }
476:
1.9 albertel 477: sub start_problem {
1.159 albertel 478: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 479:
1.184 albertel 480: if ( $Apache::inputtags::part ne '' ||
481: $Apache::lonhomework::parsing_a_problem) {
482: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
483: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
1.159 albertel 484: return '';
485: }
1.184 albertel 486:
487: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 488: &init_problem_globals('problem');
1.166 albertel 489:
1.284 albertel 490: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 491: $Apache::lonhomework::scantronmode=1;
492: }
1.161 albertel 493:
1.246 albertel 494: &initialize_storage();
1.159 albertel 495: if ($target ne 'analyze') {
496: if ($target eq 'web') {
497: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 498: }
1.284 albertel 499: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 500: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 501: if (($env{'request.state'} eq 'construct') &&
502: defined($env{'form.problemtype'})) {
503: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 504: }
1.240 albertel 505: &Apache::lonxml::debug("Found this to be of type :$Apache::ltonhomework::type:");
1.159 albertel 506: }
1.164 albertel 507: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 508: my $uri=$env{'request.uri'};
1.159 albertel 509: if ($uri=~/\.(\w+)$/) {
510: $Apache::lonhomework::type=$1;
511: &Apache::lonxml::debug("Using type of $1");
512: } else {
513: $Apache::lonhomework::type='problem';
514: &Apache::lonxml::debug("Using default type, problem, :$uri:");
515: }
1.87 albertel 516: }
1.58 www 517:
1.159 albertel 518: #added vars to the scripting enviroment
1.213 albertel 519: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 520: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 521: &Apache::run::run($expression,$safeeval);
1.159 albertel 522: my $status;
523: my $accessmsg;
524:
525: #should get back a <html> or the neccesary stuff to start XML/MathML
526: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
527: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.284 albertel 528: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 529:
530: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
531: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
532: $target eq 'tex') {
533: #handle exam checkout
534: if ($Apache::lonhomework::type eq 'exam') {
535: my $token=
536: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 537: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 538: $token=&Apache::lonxml::maketoken();
539: $Apache::lonhomework::history{"resource.0.outtoken"}=
540: $token;
541: }
542: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 543: }
1.284 albertel 544: if ($env{'form.markaccess'}) {
1.252 albertel 545: &Apache::lonnet::set_first_access('map');
546: }
1.159 albertel 547: #handle rand seed in construction space
548: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 549: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 550: if ($env{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 551: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
552: $rndseed.'" />'.
553: '<input type="submit" name="resetdata"
1.211 albertel 554: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 555: '<input type="hidden" name="username"
1.284 albertel 556: value="'.$env{'form.username'}.'" />';
557: if ($env{'user.adv'}) {
1.267 albertel 558: $form_tag_start.=
559: ' <input type="checkbox" name="showallfoils" ';
1.284 albertel 560: if (defined($env{'form.showallfoils'})) {
1.267 albertel 561: $form_tag_start.='checked="on"';
562: }
563: $form_tag_start.= ' />'.&mt(' Show All Foils');
564: }
565: $form_tag_start.='<hr />';
1.162 albertel 566: }
1.159 albertel 567: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
568: push (@Apache::inputtags::status,$status);
569: my $expression='$external::datestatus="'.$status.'";';
570: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
571: &Apache::run::run($expression,$safeeval);
572: &Apache::lonxml::debug("Got $status");
573: if (( $status eq 'CLOSED' ) ||
574: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 575: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 576: ( $status eq 'BANNED') ||
1.216 albertel 577: ( $status eq 'UNAVAILABLE') ||
578: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 579: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
580: if ( $target eq "web" ) {
581: $result.= $head_tag_start.'</head>';
582: my $msg=$body_tag_start;
583: if ($status eq 'UNAVAILABLE') {
1.245 albertel 584: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 585: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 586: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 587: }
1.216 albertel 588: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 589: $msg.='The problem '.$accessmsg;
590: } elsif ($status eq 'UNCHECKEDOUT') {
591: $msg.=&checkout_msg;
1.252 albertel 592: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 593: $msg.=&firstaccess_msg($accessmsg,$symb);
1.159 albertel 594: }
595: $result.=$msg.'<br />';
596: } elsif ($target eq 'tex') {
597: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
598: if ($status eq 'UNAVAILABLE') {
1.211 albertel 599: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 600: } else {
1.211 albertel 601: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 602: }
603: }
604: } elsif ($target eq 'web') {
605: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 606: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 607: $body_tag_start \n $form_tag_start".
1.227 albertel 608: '<input type="hidden" name="submitted" value="yes" />';
609: # create a page header and exit
1.284 albertel 610: if ($env{'request.state'} eq "construct") {
611: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 612: }
613: # if we are viewing someone else preserve that info
1.284 albertel 614: if (defined $env{'form.grade_symb'}) {
1.227 albertel 615: foreach my $field ('symb','courseid','domain','username') {
616: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 617: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 618: }
619: }
620: } elsif ($target eq 'tex') {
1.192 sakharuk 621: my $startminipage = '';
1.284 albertel 622: if (not $env{'form.problem_split'}=~/yes/) {
1.192 sakharuk 623: $startminipage = '\begin{minipage}{\textwidth}';
1.178 sakharuk 624: }
1.159 albertel 625: my $id = $Apache::inputtags::part;
626: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 627: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.223 sakharuk 628: my @packages = split /,/,$packages;
629: my $allow_print_points = 0;
630: foreach my $partial_key (@packages) {
1.230 albertel 631: if ($partial_key=~m/^part_0$/) {
1.223 sakharuk 632: $allow_print_points=1;
1.159 albertel 633: }
634: }
1.276 albertel 635: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
636: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1.159 albertel 637: my $duedate = &Apache::lonnet::EXT("resource.$id.duedate");
638: $duedate = POSIX::strftime("%c",localtime($duedate));
639: my $temp_file;
1.284 albertel 640: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1.159 albertel 641: if (-e $filename) {
642: $temp_file = Apache::File->new($filename);
643: } else {
644: $temp_file = Apache::File->new('>>'.$filename);
645: }
646: my @due_file_content = <$temp_file>;
647: my $due_file_content = $due_file_content[$#due_file_content];
648: chomp $due_file_content;
1.257 sakharuk 649: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.159 albertel 650: if ($due_file_content ne $duedate) {
651: $temp_file = Apache::File->new('>'.$filename);
652: print $temp_file "$duedate\n";
1.284 albertel 653: if (not $env{'request.symb'} =~ m/\.page_/) {
1.159 albertel 654: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1.284 albertel 655: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent\textit{Due date: '.$duedate.'} \vskip 1 mm\noindent '.$startminipage.'\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1.159 albertel 656: } else {
1.284 albertel 657: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent \vskip 1 mm \noindent'.$startminipage.'\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1.159 albertel 658: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
659: }
1.104 sakharuk 660: } else {
1.159 albertel 661: $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
1.104 sakharuk 662: }
1.101 sakharuk 663: } else {
1.284 albertel 664: if (not $env{'request.symb'} =~ m/\.page_/) {
665: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent \vskip 1 mm\noindent'.$startminipage.'\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1.159 albertel 666: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
667: } else {
668: $result .= '\vskip 1mm \\\\\\\\';
669: }
670: }
1.99 sakharuk 671: }
1.159 albertel 672: } elsif ($target eq 'edit') {
673: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
674: &problem_edit_header();
1.226 albertel 675: $Apache::lonxml::warnings_error_header=
676: &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 677: my $temp=&Apache::edit::insertlist($target,$token);
678: $result.=$temp;
679: } elsif ($target eq 'modified') {
680: $result=$token->[4];
681: $result.=&Apache::edit::handle_insert();
682: } else {
683: # page_start returned a starting result, delete it if we don't need it
684: $result = '';
1.99 sakharuk 685: }
1.159 albertel 686: return $result;
1.9 albertel 687: }
688:
689: sub end_problem {
1.159 albertel 690: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
691: my $result='';
692: my $status=$Apache::inputtags::status['-1'];
693: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
694: $target eq 'tex') {
1.249 albertel 695: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 696: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 697: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
698: &Apache::inputtags::grade;
699: } else {
700: # move any submission data to .hidden
701: &Apache::inputtags::hidealldata($Apache::inputtags::part);
702: }
1.159 albertel 703: } elsif ( ($target eq 'web' || $target eq 'tex') &&
704: $Apache::inputtags::part eq '0' &&
1.252 albertel 705: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 706: # if part is zero, no <part>s existed, so we need show the current
707: # grading status
708: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
709: $result.= $gradestatus;
710: }
711: if (
1.284 albertel 712: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 713: ($target eq 'answer') || ($target eq 'tex')
714: ) {
1.227 albertel 715: if ($target ne 'tex' &&
1.284 albertel 716: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 717: $result.="</form>";
718: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
1.159 albertel 719: }
720: if ($target eq 'web') {
1.281 albertel 721: $result.=&Apache::lonxml::xmlend().'</html>';
1.159 albertel 722: } elsif ($target eq 'tex') {
1.178 sakharuk 723: my $endminipage = '';
1.284 albertel 724: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 725: $endminipage = '\end{minipage}';
726: }
1.284 albertel 727: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 728: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 729: $result=~s/<\/html>//;
1.159 albertel 730: } else {
1.262 sakharuk 731: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 732: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 733: $result .= $endminipage.'\end{document} ';
734: } else {
735: $result .= '';
736: }
1.159 albertel 737: }
738: }
739: }
740: if ($target eq 'grade') {
741: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
742: &finalize_storage();
743: }
1.284 albertel 744: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
745: && $env{'form.answer_output_mode'} ne 'tex') {
1.172 albertel 746: $result.='</html>'; # normally we get it from xmlend, but in CSTR
747: # we always show answer mode too.
1.159 albertel 748: }
749: } elsif ($target eq 'meta') {
750: if ($Apache::inputtags::part eq '0') {
1.179 albertel 751: @Apache::inputtags::response=();
1.159 albertel 752: $result=&Apache::response::mandatory_part_meta;
753: }
1.215 albertel 754: $result.=&Apache::response::meta_part_order();
1.258 albertel 755: $result.=&Apache::response::meta_response_order();
1.159 albertel 756: } elsif ($target eq 'edit') {
757: &Apache::lonxml::debug("in end_problem with $target, edit");
758: $result = &problem_edit_footer();
759: }
1.155 albertel 760:
1.284 albertel 761: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 762: &Apache::inputtags::check_for_duplicate_ids();
763: }
1.204 albertel 764:
765: &reset_problem_globals('problem');
1.159 albertel 766:
767: return $result;
1.48 albertel 768: }
769:
1.108 albertel 770:
1.48 albertel 771: sub start_library {
1.159 albertel 772: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
773: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 774: if ($$tagstack[0] eq 'library') {
775: &init_problem_globals('library');
776: $Apache::lonhomework::type='problem';
777: }
1.159 albertel 778: if ($target eq 'edit') {
779: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
780: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
781: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
782: &problem_edit_header();
783: my $temp=&Apache::edit::insertlist($target,$token);
784: $result.=$temp;
785: } elsif ($target eq 'modified') {
786: $result=$token->[4];
787: $result.=&Apache::edit::handle_insert();
788: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 789: $env{'request.state'} eq "construct" ) {
1.159 albertel 790: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
791: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
792: my $name=&get_resource_name($parstack,$safeeval);
793: my $rndseed=&setup_rndseed($safeeval);
794: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 795: $body_tag_start \n $form_tag_start".
1.159 albertel 796: '<input type="hidden" name="submitted" value="yes" />';
797: $result.=&problem_web_to_edit_header($rndseed);
798: }
799: return $result;
1.48 albertel 800: }
801:
802: sub end_library {
1.159 albertel 803: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
804: my $result='';
805: if ($target eq 'edit') {
806: $result=&problem_edit_footer();
807: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 808: $env{'request.state'} eq "construct") {
1.280 albertel 809: $result.='</form>'.&Apache::loncommon::endbodytag().
810: &Apache::lonxml::xmlend();
1.159 albertel 811: }
1.204 albertel 812: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 813: return $result;
1.197 www 814: }
815:
816: sub start_definetag {
817: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
818:
819: my $result;
820:
821: my $name = $token->[2]->{'name'};
822: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
823: if ($name=~/^\//) {
824: $result=
825: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
826: } else {
827: $result=
828: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
829: }
830: $skip=~s/\</\<\;/gs;
831: $skip=~s/\>/\>\;/gs;
832: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
833: return $result;
834: }
835:
836: sub end_definetag {
837: return '';
1.1 albertel 838: }
839:
840: sub start_block {
1.201 albertel 841: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 842:
843: my $result;
1.1 albertel 844:
1.160 albertel 845: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 846: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 847: my $code = $token->[2]->{'condition'};
1.201 albertel 848: if (defined($code)) {
1.137 albertel 849: if (!$Apache::lonxml::default_homework_loaded) {
850: &Apache::lonxml::default_homework_load($safeeval);
851: }
1.131 albertel 852: $result = &Apache::run::run($code,$safeeval);
853: &Apache::lonxml::debug("block :$code: returned :$result:");
854: } else {
855: $result='1';
856: }
857: if ( ! $result ) {
1.201 albertel 858: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 859: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
860: }
861: $result='';
862: } elsif ($target eq 'edit') {
863: $result .=&Apache::edit::tag_start($target,$token);
864: $result .=&Apache::edit::text_arg('Test Condition:','condition',
865: $token,40);
866: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
867: } elsif ($target eq 'modified') {
868: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
869: $safeeval,'condition');
870: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 871: }
1.131 albertel 872: return $result;
1.1 albertel 873: }
874:
875: sub end_block {
1.167 www 876: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
877: my $result;
878: if ($target eq "edit") {
879: $result.= &Apache::edit::tag_end($target,$token,'');
880: }
881: return $result;
882: }
883:
884: sub start_languageblock {
1.201 albertel 885: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 886:
887: my $result;
888:
889: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
890: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 891: my $include = $token->[2]->{'include'};
892: my $exclude = $token->[2]->{'exclude'};
893: my %languages=&Apache::loncommon::display_languages();
894: $result='1';
895: if ($include) {
896: $result='';
897: foreach (split(/\,/,$include)) {
898: if ($languages{$_}) { $result='1'; }
899: }
900: }
901: if ($exclude) {
902: foreach (split(/\,/,$exclude)) {
903: if ($languages{$_}) { $result='0'; }
904: }
905: }
906: if ( ! $result ) {
907: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
908: $style);
909: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
910: }
911: $result='';
1.167 www 912: } elsif ($target eq 'edit') {
913: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 914: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 915: $token,40);
1.211 albertel 916: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 917: $token,40);
918: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
919: } elsif ($target eq 'modified') {
920: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 921: $safeeval,'include',
922: 'exclude');
1.167 www 923: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
924: }
925: return $result;
926: }
927:
928: sub end_languageblock {
1.170 www 929: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
930: my $result;
1.201 albertel 931: if ($target eq "edit") {
1.170 www 932: $result.= &Apache::edit::tag_end($target,$token,'');
933: }
934: return $result;
935: }
936:
937: sub start_instructorcomment {
1.201 albertel 938: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 939:
940: my $result;
941:
942: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
943: $target eq 'tex' || $target eq 'analyze') {
1.284 albertel 944: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
945: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 946: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
947: $parser,$style);
1.170 www 948: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
949: }
950: $result='';
951: } elsif ($target eq 'edit') {
952: $result .=&Apache::edit::tag_start($target,$token);
953: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
954: }
955: return $result;
956: }
957:
958: sub end_instructorcomment {
1.159 albertel 959: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 960: my $result;
961: if ($target eq "edit") {
962: $result.= &Apache::edit::tag_end($target,$token,'');
963: }
964: return $result;
1.4 tsai 965: }
966:
967: sub start_while {
1.159 albertel 968: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
969:
1.160 albertel 970: my $result;
1.161 albertel 971: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 972: $target eq 'tex' || $target eq 'analyze') {
973: my $code = $token->[2]->{'condition'};
1.4 tsai 974:
1.160 albertel 975: push( @Apache::structuretags::whileconds, $code);
976: if (!$Apache::lonxml::default_homework_loaded) {
977: &Apache::lonxml::default_homework_load($safeeval);
978: }
979: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 980: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 981: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 982: push( @Apache::structuretags::whileline, $token->[5]);
983: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 984: if ( $result ) {
985: &Apache::lonxml::newparser($parser,\$bodytext);
986: }
987: } elsif ($target eq 'edit') {
988: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 989: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 990: $token,40);
991: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
992: } elsif ($target eq 'modified') {
993: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
994: $safeeval,'condition');
995: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 996: }
1.160 albertel 997: return $result;
1.4 tsai 998: }
999:
1000: sub end_while {
1.159 albertel 1001: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1002: my $result;
1003:
1004: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1005: $target eq 'tex' || $target eq 'analyze') {
1006: my $code = pop(@Apache::structuretags::whileconds);
1007: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1008: my $line = pop(@Apache::structuretags::whileline);
1009: my $return = &Apache::run::run($code,$safeeval);
1010: my $starttime=time;
1011: my $error=0;
1012: while ($return) {
1013: if (time-$starttime >
1014: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1015: #$return = 0; $error=1; next;
1.161 albertel 1016: }
1017: $result.=&Apache::scripttag::xmlparse($bodytext);
1018: $return = &Apache::run::run($code,$safeeval);
1019: }
1020: if ($error) {
1.270 albertel 1021: &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 1022: }
1023: } elsif ($target eq "edit") {
1024: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1025: }
1.160 albertel 1026: return $result;
1.1 albertel 1027: }
1.6 tsai 1028:
1.160 albertel 1029: # <randomlist show="1">
1.6 tsai 1030: # <tag1>..</tag1>
1031: # <tag2>..</tag2>
1032: # <tag3>..</tag3>
1.160 albertel 1033: # ...
1.6 tsai 1034: # </randomlist>
1035: sub start_randomlist {
1.159 albertel 1036: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1037: my $result;
1038: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1039: $target eq 'tex' || $target eq 'analyze') {
1040: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1041: my $b_parser= HTML::TokeParser->new(\$body);
1042: my $b_tok;
1043: my @randomlist;
1044: my $list_item;
1045: while($b_tok = $b_parser->get_token() ) {
1046: if($b_tok->[0] eq 'S') { # start tag
1047: # get content of the tag until matching end tag
1048: # get all text upto the matching tag
1049: # and push the content into @randomlist
1050: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1051: $b_parser);
1052: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1053: push(@randomlist,$list_item);
1054: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1055: # $list_item</b>";
1056: }
1057: if($b_tok->[0] eq 'T') { # text
1058: # what to do with text in between tags?
1059: # print "<b>TEXT $b_tok->[1]</b><br />";
1060: }
1061: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1062: # print "<b>END-TAG $b_tok->[1]</b><br />";
1063: # }
1064: }
1065: my @idx_arr = (0 .. $#randomlist);
1066: &Apache::structuretags::shuffle(\@idx_arr);
1067: my $bodytext = '';
1068: my $show=$#randomlist;
1069: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1070: $showarg--;
1071: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1072: for(0 .. $show) {
1073: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1074: }
1075: &Apache::lonxml::newparser($parser,\$bodytext);
1076: } elsif ($target eq 'edit' ) {
1077: $result .=&Apache::edit::tag_start($target,$token);
1078: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1079: $token,5);
1080: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1081: } elsif ($target eq 'modified' ) {
1082: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1083: $safeeval,'show');
1084: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1085: }
1086: return $result;
1.7 tsai 1087: }
1088:
1089: sub shuffle {
1090: my $a=shift;
1091: my $i;
1.70 albertel 1092: if (defined(@$a)) {
1.251 albertel 1093: &Apache::response::pushrandomnumber();
1.159 albertel 1094: for($i=@$a;--$i;) {
1095: my $j=int(&Math::Random::random_uniform() * ($i+1));
1096: next if $i == $j;
1097: @$a[$i,$j] = @$a[$j,$i];
1098: }
1.251 albertel 1099: &Apache::response::poprandomnumber();
1.7 tsai 1100: }
1.6 tsai 1101: }
1102:
1103: sub end_randomlist {
1.159 albertel 1104: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1105: my $result;
1106: if ($target eq 'edit' ) {
1107: $result=&Apache::edit::tag_end($target,$token,
1108: 'End Randomly Parsed Block');
1109: }
1110: return $result;
1.6 tsai 1111: }
1112:
1.283 albertel 1113: sub ordered_show_check {
1114: my $last_part=$Apache::inputtags::partlist[-2];
1115: my $in_order=
1116: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1117: my $in_order_show=1;
1118: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1119: $in_order_show=&Apache::response::check_status($last_part);
1120: }
1121: return $in_order_show;
1122: }
1123:
1.11 albertel 1124: sub start_part {
1.159 albertel 1125: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1126: my $result='';
1127: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1128: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
1129: $Apache::inputtags::part=$id;
1.177 albertel 1130: push(@Apache::inputtags::partlist,$id);
1131: @Apache::inputtags::response=();
1.159 albertel 1132: @Apache::inputtags::previous=();
1133: @Apache::inputtags::previous_version=();
1.241 albertel 1134: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1135: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1136: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1137: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1138: my $in_order_show=&ordered_show_check();
1.214 albertel 1139: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1140: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1141: &Apache::run::run($expression,$safeeval);
1.159 albertel 1142:
1143: if ($target eq 'meta') {
1.224 www 1144: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1145: return &Apache::response::mandatory_part_meta.
1146: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1147: } elsif ($target eq 'web' || $target eq 'grade' ||
1148: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1149: if ($hidden || !$in_order_show) {
1.159 albertel 1150: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1151: } else {
1152: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1153: push (@Apache::inputtags::status,$status);
1154: my $expression='$external::datestatus="'.$status.'";';
1155: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1156: &Apache::run::run($expression,$safeeval);
1.284 albertel 1157: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1158: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1159: }
1.216 albertel 1160: if (( $status eq 'CLOSED' ) ||
1161: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1162: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1163: ( $status eq 'BANNED') ||
1164: ( $status eq 'UNAVAILABLE') ||
1165: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 1166: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1167: if ( $target eq "web" ) {
1.211 albertel 1168: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1169: } elsif ( $target eq 'tex' ) {
1.284 albertel 1170: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1171: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1172: } else {
1.211 albertel 1173: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1174: }
1.159 albertel 1175: }
1176: } else {
1177: if ($target eq 'tex') {
1.284 albertel 1178: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1179: if ($$tagstack[-2] eq 'td') {
1180: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1181: } else {
1182: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1183: }
1.195 sakharuk 1184: }
1.159 albertel 1185: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1186: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1187: my @allkeys = split /,/,$allkeys;
1188: my $allow_print_points = 0;
1189: foreach my $partial_key (@allkeys) {
1.230 albertel 1190: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1191: if ($1 ne '0') {$allow_print_points=1;}
1192: }
1193: }
1.275 albertel 1194: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1195: if (defined($maxtries) && $maxtries < 0) {
1196: $allow_print_points=0;
1197: }
1.222 sakharuk 1198: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1199: } elsif ($target eq 'web') {
1200: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1201: }
1202: }
1203: }
1204: } elsif ($target eq 'edit') {
1205: $result.=&Apache::edit::tag_start($target,$token);
1206: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1207: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1208: ' '.
1209: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1210: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1211: } elsif ($target eq 'modified') {
1212: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1213: $safeeval,'id','display');
1.159 albertel 1214: if ($constructtag) {
1.225 albertel 1215: #limiting ids to only letters numbers, and space
1.224 www 1216: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1217: $result = &Apache::edit::rebuild_tag($token);
1218: $result.=&Apache::edit::handle_insert();
1219: }
1220: }
1221: return $result;
1.11 albertel 1222: }
1223:
1224: sub end_part {
1.159 albertel 1225: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1226: &Apache::lonxml::debug("in end_part $target ");
1227: my $status=$Apache::inputtags::status['-1'];
1228: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1229: my $in_order_show=&ordered_show_check();
1.159 albertel 1230: my $result='';
1231: if ( $target eq 'meta' ) {
1232: $result='';
1.249 albertel 1233: } elsif ($target eq 'grade') {
1234: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1235: !$hidden && $in_order_show) {
1.249 albertel 1236: $result=&Apache::inputtags::grade;
1237: } else {
1238: # move any submission data to .hidden
1239: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1240: }
1.283 albertel 1241: } elsif (($target eq 'web' || $target eq 'tex') &&
1242: !$hidden && $in_order_show) {
1.159 albertel 1243: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1244: $target);
1.212 albertel 1245: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1246: $gradestatus='';
1247: }
1.159 albertel 1248: $result=$gradestatus;
1.265 sakharuk 1249: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1250: } elsif ($target eq 'edit') {
1251: $result=&Apache::edit::end_table();
1.159 albertel 1252: }
1253: pop @Apache::inputtags::status;
1254: $Apache::inputtags::part='';
1255: return $result;
1.11 albertel 1256: }
1.1 albertel 1257:
1.25 albertel 1258: sub start_preduedate {
1.159 albertel 1259: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1260: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1.236 albertel 1261: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.159 albertel 1262: if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1263: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1264: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.159 albertel 1265: &Apache::lonxml::get_all_text("/preduedate",$parser);
1266: }
1.24 albertel 1267: }
1.159 albertel 1268: return '';
1.24 albertel 1269: }
1270:
1.25 albertel 1271: sub end_preduedate {
1.159 albertel 1272: return '';
1.24 albertel 1273: }
1274:
1.25 albertel 1275: sub start_postanswerdate {
1.159 albertel 1276: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.234 albertel 1277: if ($target eq 'web' || $target eq 'grade') {
1.159 albertel 1278: if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1279: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1280: }
1281: } elsif ($target eq 'tex') {
1.234 albertel 1282: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1.159 albertel 1283: }
1284: return '';
1.24 albertel 1285: }
1286:
1.25 albertel 1287: sub end_postanswerdate {
1.159 albertel 1288: return '';
1.24 albertel 1289: }
1290:
1.25 albertel 1291: sub start_notsolved {
1.159 albertel 1292: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1293: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1294: $target eq 'tex') {
1295: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1296: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1297: if ($gradestatus =~ /^correct/ &&
1298: &Apache::response::show_answer()) {
1.159 albertel 1299: &Apache::lonxml::debug("skipping");
1300: &Apache::lonxml::get_all_text("/notsolved",$parser);
1301: }
1.24 albertel 1302: }
1.159 albertel 1303: return '';
1.24 albertel 1304: }
1305:
1.25 albertel 1306: sub end_notsolved {
1.159 albertel 1307: return '';
1.24 albertel 1308: }
1309:
1310: sub start_solved {
1.159 albertel 1311: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1312: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1313: $target eq 'tex') {
1314: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1315: if ($gradestatus !~ /^correct/ ||
1316: !&Apache::response::show_answer()) {
1.159 albertel 1317: &Apache::lonxml::get_all_text("/solved",$parser);
1318: }
1.24 albertel 1319: }
1.159 albertel 1320: return '';
1.24 albertel 1321: }
1322:
1323: sub end_solved {
1.248 albertel 1324: return '';
1325: }
1326:
1327: sub start_problemtype {
1328: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1329: my $result;
1330: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1331: $target eq 'tex' || $target eq 'analyze') {
1332: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1333: if (!defined($mode)) { $mode='show'; }
1334: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1335: my $found=0;
1336: foreach my $type (split(',',$for)) {
1337: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1338: }
1339: if ($mode eq 'show' && !$found) {
1340: &Apache::lonxml::get_all_text("/problemtype",$parser);
1341: }
1342: if ($mode eq 'hide' && $found) {
1343: &Apache::lonxml::get_all_text("/problemtype",$parser);
1344: }
1345: } elsif ($target eq 'edit') {
1346: $result .=&Apache::edit::tag_start($target,$token);
1347: $result.=&Apache::edit::select_arg('Mode:','mode',
1348: [['show','Show'],
1349: ['hide','Hide']]
1350: ,$token);
1351: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1352: [ ['exam','Exam/Quiz Problem'],
1353: ['survey','Survey'],
1354: ['problem','Homework Problem'] ]
1355: ,$token);
1356: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1357: } elsif ($target eq 'modified') {
1358: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1359: $safeeval,'mode','for');
1360: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1361: }
1362: return $result;
1363: }
1364:
1365: sub end_problemtype {
1.159 albertel 1366: return '';
1.24 albertel 1367: }
1.34 albertel 1368:
1369: sub start_startouttext {
1.159 albertel 1370: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1371: my @result=(''.'');
1372: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1373: return (@result);
1.34 albertel 1374: }
1.159 albertel 1375:
1.34 albertel 1376: sub end_startouttext {
1.159 albertel 1377: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1378: my $result='';
1379: my $text='';
1380:
1381: if ($target eq 'edit') {
1382: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1.211 albertel 1383: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1384: <td>".&mt('Delete:').
1.159 albertel 1385: &Apache::edit::deletelist($target,$token)
1386: ."</td>
1.42 albertel 1387: <td>".
1.159 albertel 1388: &Apache::edit::insertlist($target,$token).
1389: &Apache::edit::end_row().
1390: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1391: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1392: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1393: }
1394: if ($target eq 'modified') {
1.219 albertel 1395: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1396: }
1397: if ($target eq 'tex') {
1398: $result .= '\noindent ';
1399: }
1400: return $result;
1.34 albertel 1401: }
1.159 albertel 1402:
1.34 albertel 1403: sub start_endouttext {
1.159 albertel 1404: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1405: my $result='';
1406: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1407: if ($target eq "modified") {
1408: $result='<endouttext />'.
1409: &Apache::edit::handle_insertafter('startouttext'); }
1410: return $result;
1.34 albertel 1411: }
1.159 albertel 1412:
1.34 albertel 1413: sub end_endouttext {
1.159 albertel 1414: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1415: my @result=('','');
1416: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1417: return (@result);
1.34 albertel 1418: }
1.159 albertel 1419:
1.45 albertel 1420: sub delete_startouttext {
1.159 albertel 1421: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1422: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1423: my $text=$$parser['-1']->get_text("/endouttext");
1424: my $ntoken=$$parser['-1']->get_token();
1425: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1426: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1427: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1428: # they did the last time round
1429: &Apache::lonxml::increasedepth($ntoken);
1430: &Apache::lonxml::decreasedepth($ntoken);
1431: return 1;
1.193 www 1432: }
1433:
1434: sub start_simpleeditbutton {
1435: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1436: my $result='';
1.284 albertel 1437: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1438: ($target eq 'web') &&
1.284 albertel 1439: (&Apache::lonnet::allowed('srm',$env{'request.course.id'}))) {
1440: my $url=$env{'request.noversionuri'};
1.193 www 1441: $url=~s/\?.*$//;
1.278 albertel 1442: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1443: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1444: '<a href="'.$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 1445: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1446: }
1447: return $result;
1448: }
1449:
1450: sub end_simpleeditbutton {
1451: return '';
1.45 albertel 1452: }
1.34 albertel 1453:
1.1 albertel 1454: 1;
1455: __END__
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