Annotation of loncom/homework/structuretags.pm, revision 1.288
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.288 ! albertel 4: # $Id: structuretags.pm,v 1.287 2005/04/18 22:35:52 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 $result;;
1.10 albertel 65: }
66:
67: sub end_tex {
1.44 ng 68: return '';
1.9 albertel 69: }
70:
1.48 albertel 71: sub page_start {
1.159 albertel 72: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
73: my %found;
1.207 albertel 74: foreach my $taginside (@$tagstack) {
1.159 albertel 75: foreach my $taglookedfor ('html','body','form') {
76: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
77: }
78: }
79:
80: my $result;
81: my $head_tag_start;
82: if (!defined($found{'html'})) {
83: $result=&Apache::londefdef::start_html($target,$token,$tagstack,
84: $parstack,$parser,$safeeval);
1.254 www 85: $head_tag_start='<head>'.&Apache::lonmenu::registerurl(undef,$target).
1.261 www 86: &Apache::lonhtmlcommon::htmlareaheaders().
1.270 albertel 87: &Apache::lonhtmlcommon::spellheader().
88: &Apache::lonxml::fontsettings();
1.159 albertel 89: }
90: my $body_tag_start;
1.284 albertel 91: if (!defined($found{'body'}) && $env{'request.state'} eq 'construct'
92: && $env{'environment.remote'} eq 'off') {
1.272 albertel 93: $body_tag_start=&Apache::loncommon::bodytag();
1.274 albertel 94: $body_tag_start.=&Apache::lonxml::message_location();
1.272 albertel 95: } elsif (!defined($found{'body'})) {
1.270 albertel 96: $body_tag_start='<body onload="'.&Apache::lonmenu::loadevents().'" '.
97: 'onunload="'.&Apache::lonmenu::unloadevents().'" ';
1.159 albertel 98: my $background=&Apache::lonxml::get_param('background',$parstack,
99: $safeeval);
1.284 albertel 100: if ($env{'browser.imagesuppress'} eq 'on') { $background=''; }
1.159 albertel 101: if ($background) {
102: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
103: $background;
104: $body_tag_start.='background="'.$background.'" ';
105: } else {
106: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
107: $safeeval);
1.284 albertel 108: if (($bgcolor) && ($env{'browser.blackwhite'} ne 'on')) {
1.159 albertel 109: $body_tag_start.='bgcolor="'.$bgcolor.'" ';
110: } else {
111: $body_tag_start.='bgcolor="#ffffff"';
112: }
1.199 www 113: }
1.284 albertel 114: if ($env{'browser.fontenhance'} eq 'on') {
1.199 www 115: $body_tag_start.=' style="font-size: x-large;" ';
1.159 albertel 116: }
117: $body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1);
1.284 albertel 118: if ($env{'environment.texengine'} eq 'jsMath') {
1.281 albertel 119: $body_tag_start.='<script type="text/javascript">
120: function NoFontMessage () {}
121: </script>'."\n".
122: '<script src="/adm/jsMath/jsMath.js"></script>'."\n";
123: }
1.284 albertel 124: if ($target eq 'web' && $env{'request.state'} ne 'construct') {
1.165 albertel 125: my ($symb,undef,undef,undef,$publicuser)=
126: &Apache::lonxml::whichuser();
127: if ($symb eq '' && !$publicuser) {
1.159 albertel 128: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
1.211 albertel 129: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
1.159 albertel 130: $body_tag_start.=$help;
131: }
132: }
1.245 albertel 133: $body_tag_start.=&Apache::lonxml::message_location();
1.159 albertel 134: }
135: my $form_tag_start;
136: if (!defined($found{'form'})) {
1.281 albertel 137: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="POST" action="';
1.284 albertel 138: my $uri=$env{'request.uri'};
139: if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
1.271 albertel 140: $form_tag_start.=$uri.'">';
1.159 albertel 141: }
142: return ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.105 albertel 143: }
144:
1.141 matthew 145: #use Time::HiRes();
1.105 albertel 146: sub get_resource_name {
1.159 albertel 147: my ($parstack,$safeeval)=@_;
1.204 albertel 148: if (defined($Apache::lonhomework::name)) {
149: return $Apache::lonhomework::name;
150: }
1.279 albertel 151: my ($symb)=&Apache::lonxml::whichuser();
152: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 153: if ($name eq '') {
154: $name=&Apache::lonnet::EXT('resource.title');
155: if ($name eq 'con_lost') { $name = ''; }
156: }
1.204 albertel 157: if ($name!~/\S+/) {
1.284 albertel 158: $name=$env{'request.uri'};
1.205 albertel 159: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 160: }
1.159 albertel 161: $Apache::lonhomework::name=$name;
162: return $name;
1.105 albertel 163: }
164:
165: sub setup_rndseed {
1.159 albertel 166: my ($safeeval)=@_;
167: my $rndseed;
1.162 albertel 168: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 169: if ($env{'request.state'} eq "construct" || $symb eq '' ||
1.247 albertel 170: $Apache::lonhomework::history{'resource.CODE'}) {
1.284 albertel 171: $rndseed=$env{'form.rndseed'};
1.159 albertel 172: if (!$rndseed) {
1.162 albertel 173: $rndseed=$Apache::lonhomework::history{'rndseed'};
174: if (!$rndseed) {
175: $rndseed=time;
176: }
1.284 albertel 177: $env{'form.rndseed'}=$rndseed;
1.162 albertel 178: }
1.284 albertel 179: if ($env{'form.resetdata'} eq &mt('New Problem Variation') ||
180: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 181: srand(time);
182: $rndseed=int(rand(2100000000));
1.284 albertel 183: $env{'form.rndseed'}=$rndseed;
184: delete($env{'form.resetdata'});
185: delete($env{'form.newrandomization'});
1.159 albertel 186: }
1.187 albertel 187: if (defined($rndseed) && $rndseed ne int($rndseed)) {
188: $rndseed=join(',',&Math::Random::random_seed_from_phrase($rndseed));
189: }
1.247 albertel 190: if ($Apache::lonhomework::history{'resource.CODE'}) {
191: $rndseed=&Apache::lonnet::rndseed();
192: }
1.221 albertel 193: if ($safeeval) {
194: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 195: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 196: }
1.159 albertel 197: }
198: return $rndseed;
1.105 albertel 199: }
200:
1.268 albertel 201: sub remember_problem_state {
202: return '
1.284 albertel 203: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
204: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
205: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 206: }
207:
1.105 albertel 208: sub problem_edit_header {
1.268 albertel 209: return '<input type="hidden" name="submitted" value="edit" />'.
210: &Apache::structuretags::remember_problem_state().'
1.210 albertel 211: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 212: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
213: <input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
214: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
215: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
216: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.260 albertel 217: &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
218: .'</td></tr></table>'.
1.282 albertel 219: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 220: }
221:
222: sub problem_edit_footer {
1.210 albertel 223: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 224: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
225: &Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).
1.280 albertel 226: "\n</form>\n".&Apache::loncommon::endbodytag()."\n</html>";
1.105 albertel 227: }
228:
1.235 albertel 229: sub option {
230: my ($value,$name) = @_;
231: my $result ="<option value='".$value."' ";
1.284 albertel 232: if ($env{'form.'.$name} eq $value) {
1.235 albertel 233: $result.=" selected='on' ";
234: }
235: $result.='>';
236: return $result;
237: }
238:
1.105 albertel 239: sub problem_web_to_edit_header {
1.159 albertel 240: my ($rndseed)=@_;
1.210 albertel 241: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />
1.243 matthew 242: <input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />
243: <input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
244: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
245: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 246: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 247: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 248: $rndseed.'"
1.270 albertel 249: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 250: <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 251: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.228 www 252: $result.= ' />'.&mt(' Show All Foils').
253: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.281 albertel 254: '</label><hr />';
1.235 albertel 255: $result.="
256: <nobr>
257: Problem Status:
258: <select name='problemstate'>
1.270 albertel 259: <option value=''></option>
1.235 albertel 260: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
261: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
262: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
263: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
264: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
265: </select>
266: </nobr>
267: <nobr>
268: Problem Type:
269: <select name='problemtype'>
1.270 albertel 270: <option value=''></option>
1.242 albertel 271: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
272: ".&option('problem','problemtype').&mt("Homework problem")."</option>
273: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 274: </select>
275: </nobr>
276: <nobr>
277: Feedback Mode:
278: <select name='problemstatus'>
279: <option value=''></option>
1.242 albertel 280: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
281: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 282: </select>
283: </nobr>
1.242 albertel 284: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 285: <hr />";
1.284 albertel 286: my $numtoanalyze=$env{'form.numtoanalyze'};
1.176 albertel 287: if (!$numtoanalyze) { $numtoanalyze=20; }
1.210 albertel 288: $result.= '<input type="submit" name="problemmode" value='.
289: &mt('"Calculate answers').'" /> for
1.136 albertel 290: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 291: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
292: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 293: '',undef,undef,300).
1.210 albertel 294: '<hr />';
1.159 albertel 295: return $result;
1.48 albertel 296: }
297:
1.65 albertel 298: sub initialize_storage {
1.159 albertel 299: %Apache::lonhomework::results=();
1.162 albertel 300: %Apache::lonhomework::history=();
1.159 albertel 301: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.284 albertel 302: if ($env{'request.state'} eq 'construct' || $symb eq '') {
1.159 albertel 303: %Apache::lonhomework::history=
1.284 albertel 304: &Apache::lonnet::tmprestore($env{'request.uri'},'',$domain,$name);
1.159 albertel 305: my ($temp)=keys %Apache::lonhomework::history ;
306: &Apache::lonxml::debug("Return message of $temp");
307: } else {
308: %Apache::lonhomework::history=
309: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
310: }
311: #ignore error conditions
1.67 albertel 312: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 313: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 314: }
315:
316: # -------------------------------------------------------------finalize_storage
317: # Stores away the result has to a student's environment
318: # checks form.grade_ for specific values, other wises stores
319: # to the running users environment
1.285 raeburn 320: # Will increment totals for attempts, students, and corrects
321: # if running user has student role.
1.65 albertel 322: sub finalize_storage {
1.159 albertel 323: my $result;
324: my ($temp) = keys %Apache::lonhomework::results;
325: if ( $temp ne '' ) {
326: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.284 albertel 327: if ($env{'request.state'} eq 'construct' || $symb eq '') {
328: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 329: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.284 albertel 330: $env{'request.uri'},'',$domain,$name);
1.159 albertel 331: &Apache::lonxml::debug('Construct Store return message:'.$result);
332: } else {
333: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
334: $symb,$courseid,$domain,$name);
335: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 336: if ($env{'request.role'} =~/^st/) {
337: &store_aggregates($symb,$courseid);
338: }
1.159 albertel 339: }
1.67 albertel 340: }
1.159 albertel 341: return $result;
1.65 albertel 342: }
343:
1.285 raeburn 344: # -------------------------------------------------------------store_aggregates
345: # Sends hash of values to be incremented in nohist_resourcetracker.db
346: # for the course. Increments total number of attempts, unique students
347: # and corrects for each part for an instance of a problem, as appropriate.
348: sub store_aggregates {
349: my ($symb,$courseid) = @_;
1.286 albertel 350: my %aggregate;
351: my @parts;
1.288 ! albertel 352: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
! 353: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 354: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 355: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 356: push(@parts, $1);
1.285 raeburn 357: }
358: }
1.286 albertel 359: foreach my $part (@parts) {
360: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
361: eq 'APPROX_ANS' ||
362: $Apache::lonhomework::results{'resource.'.$part.'.award'}
363: eq 'EXACT_ANS') {
1.287 albertel 364: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 365: }
1.286 albertel 366: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 367: $aggregate{$symb."\0".$part."\0users"} = 1;
1.285 raeburn 368: }
1.287 albertel 369: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 370: }
1.286 albertel 371: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
372: $cdomain,$cname);
1.285 raeburn 373: }
374:
1.65 albertel 375: sub checkout_msg {
1.211 albertel 376: my %lt=&Apache::lonlocal::texthash(
377: 'resource'=>'The resource needs to be checked out',
378: '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.',
379: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
380: 'checkout'=>'Check out Exam for Viewing',
381: 'checkout?'=>'Check out Exam?');
1.159 albertel 382: return (<<ENDCHECKOUT);
1.211 albertel 383: <h2>$lt{'resource'}</h2>
384: <p>$lt{'id_expln'}</p>
385: <font color="red">
386: <p>$lt{'warning'}</p>
1.91 albertel 387: </font>
1.284 albertel 388: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.91 albertel 389: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 390: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 391: </form>
392: ENDCHECKOUT
393: }
394:
1.252 albertel 395: sub firstaccess_msg {
1.253 albertel 396: my ($time,$symb)=@_;
397: my ($map)=&Apache::lonnet::decode_symb($symb);
398: my $foldertitle=&Apache::lonnet::gettitle($map);
399: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.252 albertel 400: return (<<ENDCHECKOUT);
1.253 albertel 401: <h2>The resources in "$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 402: <form name="markaccess" method="POST" action="$env{'request.uri'}">
1.252 albertel 403: <input type="hidden" name="markaccess" value="yes" />
404: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
405: </form>
406: ENDCHECKOUT
407: }
408:
1.204 albertel 409: sub init_problem_globals {
410: my ($type)=@_;
411: #initialize globals
412: if ($type eq 'problem') {
413: $Apache::inputtags::part='0';
414: @Apache::inputtags::partlist=('0');
1.266 albertel 415: $Apache::lonhomework::problemstatus=&get_problem_status('0');
416: $Apache::lonhomework::ignore_response_errors=0;
417: } elsif ($type eq 'library') {
1.204 albertel 418: $Apache::inputtags::part='';
419: @Apache::inputtags::partlist=();
420: $Apache::lonhomework::problemstatus='';
1.266 albertel 421: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 422: }
423: @Apache::inputtags::responselist = ();
424: @Apache::inputtags::importlist = ();
425: @Apache::inputtags::previous=();
426: @Apache::inputtags::previous_version=();
427: $Apache::structuretags::printanswer='No';
428: @Apache::structuretags::whileconds=();
429: @Apache::structuretags::whilebody=();
430: @Apache::structuretags::whileline=();
431: $Apache::lonhomework::scantronmode=0;
432: undef($Apache::lonhomework::name);
433:
434: }
435:
436: sub reset_problem_globals {
437: my ($type)=@_;
438: undef(%Apache::lonhomework::history);
439: undef(%Apache::lonhomework::results);
440: undef($Apache::inputtags::part);
1.208 albertel 441: #don't undef this, lonhomework.pm takes care of this, we use this to
442: #detect if we try to do 2 problems in one file
443: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 444: undef($Apache::lonhomework::name);
445: }
446:
1.241 albertel 447: sub set_problem_state {
1.240 albertel 448: my ($part)=@_;
1.284 albertel 449: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 450: $Apache::lonhomework::history{"resource.$part.solved"}=
451: 'correct_by_student';
452: }
453: }
454:
1.241 albertel 455: sub get_problem_status {
456: my ($part)=@_;
1.267 albertel 457: my $problem_status;
1.284 albertel 458: if ($env{'request.state'} eq 'construct' &&
459: defined($env{'form.problemstatus'})) {
460: $problem_status=$env{'form.problemstatus'};
1.267 albertel 461: } else {
462: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
463: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 464: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 465: }
466: return $problem_status;
467: }
468:
1.9 albertel 469: sub start_problem {
1.159 albertel 470: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 471:
1.184 albertel 472: if ( $Apache::inputtags::part ne '' ||
473: $Apache::lonhomework::parsing_a_problem) {
474: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
475: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
1.159 albertel 476: return '';
477: }
1.184 albertel 478:
479: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 480: &init_problem_globals('problem');
1.166 albertel 481:
1.284 albertel 482: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 483: $Apache::lonhomework::scantronmode=1;
484: }
1.161 albertel 485:
1.246 albertel 486: &initialize_storage();
1.159 albertel 487: if ($target ne 'analyze') {
488: if ($target eq 'web') {
489: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 490: }
1.284 albertel 491: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 492: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 493: if (($env{'request.state'} eq 'construct') &&
494: defined($env{'form.problemtype'})) {
495: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 496: }
1.240 albertel 497: &Apache::lonxml::debug("Found this to be of type :$Apache::ltonhomework::type:");
1.159 albertel 498: }
1.164 albertel 499: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 500: my $uri=$env{'request.uri'};
1.159 albertel 501: if ($uri=~/\.(\w+)$/) {
502: $Apache::lonhomework::type=$1;
503: &Apache::lonxml::debug("Using type of $1");
504: } else {
505: $Apache::lonhomework::type='problem';
506: &Apache::lonxml::debug("Using default type, problem, :$uri:");
507: }
1.87 albertel 508: }
1.58 www 509:
1.159 albertel 510: #added vars to the scripting enviroment
1.213 albertel 511: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 512: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 513: &Apache::run::run($expression,$safeeval);
1.159 albertel 514: my $status;
515: my $accessmsg;
516:
517: #should get back a <html> or the neccesary stuff to start XML/MathML
518: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
519: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.284 albertel 520: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 521:
522: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
523: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
524: $target eq 'tex') {
525: #handle exam checkout
526: if ($Apache::lonhomework::type eq 'exam') {
527: my $token=
528: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 529: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 530: $token=&Apache::lonxml::maketoken();
531: $Apache::lonhomework::history{"resource.0.outtoken"}=
532: $token;
533: }
534: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 535: }
1.284 albertel 536: if ($env{'form.markaccess'}) {
1.252 albertel 537: &Apache::lonnet::set_first_access('map');
538: }
1.159 albertel 539: #handle rand seed in construction space
540: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 541: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 542: if ($env{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 543: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
544: $rndseed.'" />'.
545: '<input type="submit" name="resetdata"
1.211 albertel 546: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 547: '<input type="hidden" name="username"
1.284 albertel 548: value="'.$env{'form.username'}.'" />';
549: if ($env{'user.adv'}) {
1.267 albertel 550: $form_tag_start.=
551: ' <input type="checkbox" name="showallfoils" ';
1.284 albertel 552: if (defined($env{'form.showallfoils'})) {
1.267 albertel 553: $form_tag_start.='checked="on"';
554: }
555: $form_tag_start.= ' />'.&mt(' Show All Foils');
556: }
557: $form_tag_start.='<hr />';
1.162 albertel 558: }
1.159 albertel 559: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
560: push (@Apache::inputtags::status,$status);
561: my $expression='$external::datestatus="'.$status.'";';
562: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
563: &Apache::run::run($expression,$safeeval);
564: &Apache::lonxml::debug("Got $status");
565: if (( $status eq 'CLOSED' ) ||
566: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 567: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 568: ( $status eq 'BANNED') ||
1.216 albertel 569: ( $status eq 'UNAVAILABLE') ||
570: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 571: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
572: if ( $target eq "web" ) {
573: $result.= $head_tag_start.'</head>';
574: my $msg=$body_tag_start;
575: if ($status eq 'UNAVAILABLE') {
1.245 albertel 576: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 577: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 578: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 579: }
1.216 albertel 580: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 581: $msg.='The problem '.$accessmsg;
582: } elsif ($status eq 'UNCHECKEDOUT') {
583: $msg.=&checkout_msg;
1.252 albertel 584: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 585: $msg.=&firstaccess_msg($accessmsg,$symb);
1.159 albertel 586: }
587: $result.=$msg.'<br />';
588: } elsif ($target eq 'tex') {
589: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
590: if ($status eq 'UNAVAILABLE') {
1.211 albertel 591: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 592: } else {
1.211 albertel 593: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 594: }
595: }
596: } elsif ($target eq 'web') {
597: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 598: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 599: $body_tag_start \n $form_tag_start".
1.227 albertel 600: '<input type="hidden" name="submitted" value="yes" />';
601: # create a page header and exit
1.284 albertel 602: if ($env{'request.state'} eq "construct") {
603: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 604: }
605: # if we are viewing someone else preserve that info
1.284 albertel 606: if (defined $env{'form.grade_symb'}) {
1.227 albertel 607: foreach my $field ('symb','courseid','domain','username') {
608: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 609: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 610: }
611: }
612: } elsif ($target eq 'tex') {
1.192 sakharuk 613: my $startminipage = '';
1.284 albertel 614: if (not $env{'form.problem_split'}=~/yes/) {
1.192 sakharuk 615: $startminipage = '\begin{minipage}{\textwidth}';
1.178 sakharuk 616: }
1.159 albertel 617: my $id = $Apache::inputtags::part;
618: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 619: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.223 sakharuk 620: my @packages = split /,/,$packages;
621: my $allow_print_points = 0;
622: foreach my $partial_key (@packages) {
1.230 albertel 623: if ($partial_key=~m/^part_0$/) {
1.223 sakharuk 624: $allow_print_points=1;
1.159 albertel 625: }
626: }
1.276 albertel 627: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
628: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1.159 albertel 629: my $duedate = &Apache::lonnet::EXT("resource.$id.duedate");
630: $duedate = POSIX::strftime("%c",localtime($duedate));
631: my $temp_file;
1.284 albertel 632: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1.159 albertel 633: if (-e $filename) {
634: $temp_file = Apache::File->new($filename);
635: } else {
636: $temp_file = Apache::File->new('>>'.$filename);
637: }
638: my @due_file_content = <$temp_file>;
639: my $due_file_content = $due_file_content[$#due_file_content];
640: chomp $due_file_content;
1.257 sakharuk 641: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.159 albertel 642: if ($due_file_content ne $duedate) {
643: $temp_file = Apache::File->new('>'.$filename);
644: print $temp_file "$duedate\n";
1.284 albertel 645: if (not $env{'request.symb'} =~ m/\.page_/) {
1.159 albertel 646: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1.284 albertel 647: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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 648: } else {
1.284 albertel 649: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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}{'.$name_of_resourse.'}';
1.159 albertel 650: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
651: }
1.104 sakharuk 652: } else {
1.159 albertel 653: $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
1.104 sakharuk 654: }
1.101 sakharuk 655: } else {
1.284 albertel 656: if (not $env{'request.symb'} =~ m/\.page_/) {
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: } else {
660: $result .= '\vskip 1mm \\\\\\\\';
661: }
662: }
1.99 sakharuk 663: }
1.159 albertel 664: } elsif ($target eq 'edit') {
665: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
666: &problem_edit_header();
1.226 albertel 667: $Apache::lonxml::warnings_error_header=
668: &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 669: my $temp=&Apache::edit::insertlist($target,$token);
670: $result.=$temp;
671: } elsif ($target eq 'modified') {
672: $result=$token->[4];
673: $result.=&Apache::edit::handle_insert();
674: } else {
675: # page_start returned a starting result, delete it if we don't need it
676: $result = '';
1.99 sakharuk 677: }
1.159 albertel 678: return $result;
1.9 albertel 679: }
680:
681: sub end_problem {
1.159 albertel 682: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
683: my $result='';
684: my $status=$Apache::inputtags::status['-1'];
685: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
686: $target eq 'tex') {
1.249 albertel 687: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 688: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 689: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
690: &Apache::inputtags::grade;
691: } else {
692: # move any submission data to .hidden
693: &Apache::inputtags::hidealldata($Apache::inputtags::part);
694: }
1.159 albertel 695: } elsif ( ($target eq 'web' || $target eq 'tex') &&
696: $Apache::inputtags::part eq '0' &&
1.252 albertel 697: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 698: # if part is zero, no <part>s existed, so we need show the current
699: # grading status
700: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
701: $result.= $gradestatus;
702: }
703: if (
1.284 albertel 704: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 705: ($target eq 'answer') || ($target eq 'tex')
706: ) {
1.227 albertel 707: if ($target ne 'tex' &&
1.284 albertel 708: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 709: $result.="</form>";
710: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
1.159 albertel 711: }
712: if ($target eq 'web') {
1.281 albertel 713: $result.=&Apache::lonxml::xmlend().'</html>';
1.159 albertel 714: } elsif ($target eq 'tex') {
1.178 sakharuk 715: my $endminipage = '';
1.284 albertel 716: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 717: $endminipage = '\end{minipage}';
718: }
1.284 albertel 719: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 720: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 721: $result=~s/<\/html>//;
1.159 albertel 722: } else {
1.262 sakharuk 723: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 724: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 725: $result .= $endminipage.'\end{document} ';
726: } else {
727: $result .= '';
728: }
1.159 albertel 729: }
730: }
731: }
732: if ($target eq 'grade') {
733: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
734: &finalize_storage();
735: }
1.284 albertel 736: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
737: && $env{'form.answer_output_mode'} ne 'tex') {
1.172 albertel 738: $result.='</html>'; # normally we get it from xmlend, but in CSTR
739: # we always show answer mode too.
1.159 albertel 740: }
741: } elsif ($target eq 'meta') {
742: if ($Apache::inputtags::part eq '0') {
1.179 albertel 743: @Apache::inputtags::response=();
1.159 albertel 744: $result=&Apache::response::mandatory_part_meta;
745: }
1.215 albertel 746: $result.=&Apache::response::meta_part_order();
1.258 albertel 747: $result.=&Apache::response::meta_response_order();
1.159 albertel 748: } elsif ($target eq 'edit') {
749: &Apache::lonxml::debug("in end_problem with $target, edit");
750: $result = &problem_edit_footer();
751: }
1.155 albertel 752:
1.284 albertel 753: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 754: &Apache::inputtags::check_for_duplicate_ids();
755: }
1.204 albertel 756:
757: &reset_problem_globals('problem');
1.159 albertel 758:
759: return $result;
1.48 albertel 760: }
761:
1.108 albertel 762:
1.48 albertel 763: sub start_library {
1.159 albertel 764: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
765: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 766: if ($$tagstack[0] eq 'library') {
767: &init_problem_globals('library');
768: $Apache::lonhomework::type='problem';
769: }
1.159 albertel 770: if ($target eq 'edit') {
771: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
772: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
773: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
774: &problem_edit_header();
775: my $temp=&Apache::edit::insertlist($target,$token);
776: $result.=$temp;
777: } elsif ($target eq 'modified') {
778: $result=$token->[4];
779: $result.=&Apache::edit::handle_insert();
780: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 781: $env{'request.state'} eq "construct" ) {
1.159 albertel 782: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
783: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
784: my $name=&get_resource_name($parstack,$safeeval);
785: my $rndseed=&setup_rndseed($safeeval);
786: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 787: $body_tag_start \n $form_tag_start".
1.159 albertel 788: '<input type="hidden" name="submitted" value="yes" />';
789: $result.=&problem_web_to_edit_header($rndseed);
790: }
791: return $result;
1.48 albertel 792: }
793:
794: sub end_library {
1.159 albertel 795: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
796: my $result='';
797: if ($target eq 'edit') {
798: $result=&problem_edit_footer();
799: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 800: $env{'request.state'} eq "construct") {
1.280 albertel 801: $result.='</form>'.&Apache::loncommon::endbodytag().
802: &Apache::lonxml::xmlend();
1.159 albertel 803: }
1.204 albertel 804: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 805: return $result;
1.197 www 806: }
807:
808: sub start_definetag {
809: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
810:
811: my $result;
812:
813: my $name = $token->[2]->{'name'};
814: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
815: if ($name=~/^\//) {
816: $result=
817: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
818: } else {
819: $result=
820: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
821: }
822: $skip=~s/\</\<\;/gs;
823: $skip=~s/\>/\>\;/gs;
824: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
825: return $result;
826: }
827:
828: sub end_definetag {
829: return '';
1.1 albertel 830: }
831:
832: sub start_block {
1.201 albertel 833: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 834:
835: my $result;
1.1 albertel 836:
1.160 albertel 837: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 838: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 839: my $code = $token->[2]->{'condition'};
1.201 albertel 840: if (defined($code)) {
1.137 albertel 841: if (!$Apache::lonxml::default_homework_loaded) {
842: &Apache::lonxml::default_homework_load($safeeval);
843: }
1.131 albertel 844: $result = &Apache::run::run($code,$safeeval);
845: &Apache::lonxml::debug("block :$code: returned :$result:");
846: } else {
847: $result='1';
848: }
849: if ( ! $result ) {
1.201 albertel 850: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 851: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
852: }
853: $result='';
854: } elsif ($target eq 'edit') {
855: $result .=&Apache::edit::tag_start($target,$token);
856: $result .=&Apache::edit::text_arg('Test Condition:','condition',
857: $token,40);
858: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
859: } elsif ($target eq 'modified') {
860: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
861: $safeeval,'condition');
862: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 863: }
1.131 albertel 864: return $result;
1.1 albertel 865: }
866:
867: sub end_block {
1.167 www 868: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
869: my $result;
870: if ($target eq "edit") {
871: $result.= &Apache::edit::tag_end($target,$token,'');
872: }
873: return $result;
874: }
875:
876: sub start_languageblock {
1.201 albertel 877: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 878:
879: my $result;
880:
881: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
882: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 883: my $include = $token->[2]->{'include'};
884: my $exclude = $token->[2]->{'exclude'};
885: my %languages=&Apache::loncommon::display_languages();
886: $result='1';
887: if ($include) {
888: $result='';
889: foreach (split(/\,/,$include)) {
890: if ($languages{$_}) { $result='1'; }
891: }
892: }
893: if ($exclude) {
894: foreach (split(/\,/,$exclude)) {
895: if ($languages{$_}) { $result='0'; }
896: }
897: }
898: if ( ! $result ) {
899: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
900: $style);
901: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
902: }
903: $result='';
1.167 www 904: } elsif ($target eq 'edit') {
905: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 906: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 907: $token,40);
1.211 albertel 908: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 909: $token,40);
910: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
911: } elsif ($target eq 'modified') {
912: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 913: $safeeval,'include',
914: 'exclude');
1.167 www 915: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
916: }
917: return $result;
918: }
919:
920: sub end_languageblock {
1.170 www 921: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
922: my $result;
1.201 albertel 923: if ($target eq "edit") {
1.170 www 924: $result.= &Apache::edit::tag_end($target,$token,'');
925: }
926: return $result;
927: }
928:
929: sub start_instructorcomment {
1.201 albertel 930: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 931:
932: my $result;
933:
934: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
935: $target eq 'tex' || $target eq 'analyze') {
1.284 albertel 936: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
937: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 938: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
939: $parser,$style);
1.170 www 940: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
941: }
942: $result='';
943: } elsif ($target eq 'edit') {
944: $result .=&Apache::edit::tag_start($target,$token);
945: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
946: }
947: return $result;
948: }
949:
950: sub end_instructorcomment {
1.159 albertel 951: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 952: my $result;
953: if ($target eq "edit") {
954: $result.= &Apache::edit::tag_end($target,$token,'');
955: }
956: return $result;
1.4 tsai 957: }
958:
959: sub start_while {
1.159 albertel 960: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
961:
1.160 albertel 962: my $result;
1.161 albertel 963: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 964: $target eq 'tex' || $target eq 'analyze') {
965: my $code = $token->[2]->{'condition'};
1.4 tsai 966:
1.160 albertel 967: push( @Apache::structuretags::whileconds, $code);
968: if (!$Apache::lonxml::default_homework_loaded) {
969: &Apache::lonxml::default_homework_load($safeeval);
970: }
971: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 972: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 973: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 974: push( @Apache::structuretags::whileline, $token->[5]);
975: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 976: if ( $result ) {
977: &Apache::lonxml::newparser($parser,\$bodytext);
978: }
979: } elsif ($target eq 'edit') {
980: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 981: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 982: $token,40);
983: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
984: } elsif ($target eq 'modified') {
985: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
986: $safeeval,'condition');
987: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 988: }
1.160 albertel 989: return $result;
1.4 tsai 990: }
991:
992: sub end_while {
1.159 albertel 993: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 994: my $result;
995:
996: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
997: $target eq 'tex' || $target eq 'analyze') {
998: my $code = pop(@Apache::structuretags::whileconds);
999: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1000: my $line = pop(@Apache::structuretags::whileline);
1001: my $return = &Apache::run::run($code,$safeeval);
1002: my $starttime=time;
1003: my $error=0;
1004: while ($return) {
1005: if (time-$starttime >
1006: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1007: #$return = 0; $error=1; next;
1.161 albertel 1008: }
1009: $result.=&Apache::scripttag::xmlparse($bodytext);
1010: $return = &Apache::run::run($code,$safeeval);
1011: }
1012: if ($error) {
1.270 albertel 1013: &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 1014: }
1015: } elsif ($target eq "edit") {
1016: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1017: }
1.160 albertel 1018: return $result;
1.1 albertel 1019: }
1.6 tsai 1020:
1.160 albertel 1021: # <randomlist show="1">
1.6 tsai 1022: # <tag1>..</tag1>
1023: # <tag2>..</tag2>
1024: # <tag3>..</tag3>
1.160 albertel 1025: # ...
1.6 tsai 1026: # </randomlist>
1027: sub start_randomlist {
1.159 albertel 1028: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1029: my $result;
1030: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1031: $target eq 'tex' || $target eq 'analyze') {
1032: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1033: my $b_parser= HTML::TokeParser->new(\$body);
1034: my $b_tok;
1035: my @randomlist;
1036: my $list_item;
1037: while($b_tok = $b_parser->get_token() ) {
1038: if($b_tok->[0] eq 'S') { # start tag
1039: # get content of the tag until matching end tag
1040: # get all text upto the matching tag
1041: # and push the content into @randomlist
1042: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1043: $b_parser);
1044: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1045: push(@randomlist,$list_item);
1046: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1047: # $list_item</b>";
1048: }
1049: if($b_tok->[0] eq 'T') { # text
1050: # what to do with text in between tags?
1051: # print "<b>TEXT $b_tok->[1]</b><br />";
1052: }
1053: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1054: # print "<b>END-TAG $b_tok->[1]</b><br />";
1055: # }
1056: }
1057: my @idx_arr = (0 .. $#randomlist);
1058: &Apache::structuretags::shuffle(\@idx_arr);
1059: my $bodytext = '';
1060: my $show=$#randomlist;
1061: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1062: $showarg--;
1063: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1064: for(0 .. $show) {
1065: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1066: }
1067: &Apache::lonxml::newparser($parser,\$bodytext);
1068: } elsif ($target eq 'edit' ) {
1069: $result .=&Apache::edit::tag_start($target,$token);
1070: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1071: $token,5);
1072: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1073: } elsif ($target eq 'modified' ) {
1074: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1075: $safeeval,'show');
1076: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1077: }
1078: return $result;
1.7 tsai 1079: }
1080:
1081: sub shuffle {
1082: my $a=shift;
1083: my $i;
1.70 albertel 1084: if (defined(@$a)) {
1.251 albertel 1085: &Apache::response::pushrandomnumber();
1.159 albertel 1086: for($i=@$a;--$i;) {
1087: my $j=int(&Math::Random::random_uniform() * ($i+1));
1088: next if $i == $j;
1089: @$a[$i,$j] = @$a[$j,$i];
1090: }
1.251 albertel 1091: &Apache::response::poprandomnumber();
1.7 tsai 1092: }
1.6 tsai 1093: }
1094:
1095: sub end_randomlist {
1.159 albertel 1096: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1097: my $result;
1098: if ($target eq 'edit' ) {
1099: $result=&Apache::edit::tag_end($target,$token,
1100: 'End Randomly Parsed Block');
1101: }
1102: return $result;
1.6 tsai 1103: }
1104:
1.283 albertel 1105: sub ordered_show_check {
1106: my $last_part=$Apache::inputtags::partlist[-2];
1107: my $in_order=
1108: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1109: my $in_order_show=1;
1110: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1111: $in_order_show=&Apache::response::check_status($last_part);
1112: }
1113: return $in_order_show;
1114: }
1115:
1.11 albertel 1116: sub start_part {
1.159 albertel 1117: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1118: my $result='';
1119: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1120: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
1121: $Apache::inputtags::part=$id;
1.177 albertel 1122: push(@Apache::inputtags::partlist,$id);
1123: @Apache::inputtags::response=();
1.159 albertel 1124: @Apache::inputtags::previous=();
1125: @Apache::inputtags::previous_version=();
1.241 albertel 1126: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1127: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1128: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1129: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1130: my $in_order_show=&ordered_show_check();
1.214 albertel 1131: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1132: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1133: &Apache::run::run($expression,$safeeval);
1.159 albertel 1134:
1135: if ($target eq 'meta') {
1.224 www 1136: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1137: return &Apache::response::mandatory_part_meta.
1138: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1139: } elsif ($target eq 'web' || $target eq 'grade' ||
1140: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1141: if ($hidden || !$in_order_show) {
1.159 albertel 1142: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1143: } else {
1144: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1145: push (@Apache::inputtags::status,$status);
1146: my $expression='$external::datestatus="'.$status.'";';
1147: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1148: &Apache::run::run($expression,$safeeval);
1.284 albertel 1149: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1150: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1151: }
1.216 albertel 1152: if (( $status eq 'CLOSED' ) ||
1153: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1154: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1155: ( $status eq 'BANNED') ||
1156: ( $status eq 'UNAVAILABLE') ||
1157: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 1158: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1159: if ( $target eq "web" ) {
1.211 albertel 1160: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1161: } elsif ( $target eq 'tex' ) {
1.284 albertel 1162: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1163: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1164: } else {
1.211 albertel 1165: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1166: }
1.159 albertel 1167: }
1168: } else {
1169: if ($target eq 'tex') {
1.284 albertel 1170: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1171: if ($$tagstack[-2] eq 'td') {
1172: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1173: } else {
1174: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1175: }
1.195 sakharuk 1176: }
1.159 albertel 1177: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1178: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1179: my @allkeys = split /,/,$allkeys;
1180: my $allow_print_points = 0;
1181: foreach my $partial_key (@allkeys) {
1.230 albertel 1182: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1183: if ($1 ne '0') {$allow_print_points=1;}
1184: }
1185: }
1.275 albertel 1186: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1187: if (defined($maxtries) && $maxtries < 0) {
1188: $allow_print_points=0;
1189: }
1.222 sakharuk 1190: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1191: } elsif ($target eq 'web') {
1192: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1193: }
1194: }
1195: }
1196: } elsif ($target eq 'edit') {
1197: $result.=&Apache::edit::tag_start($target,$token);
1198: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1199: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1200: ' '.
1201: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1202: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1203: } elsif ($target eq 'modified') {
1204: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1205: $safeeval,'id','display');
1.159 albertel 1206: if ($constructtag) {
1.225 albertel 1207: #limiting ids to only letters numbers, and space
1.224 www 1208: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1209: $result = &Apache::edit::rebuild_tag($token);
1210: $result.=&Apache::edit::handle_insert();
1211: }
1212: }
1213: return $result;
1.11 albertel 1214: }
1215:
1216: sub end_part {
1.159 albertel 1217: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1218: &Apache::lonxml::debug("in end_part $target ");
1219: my $status=$Apache::inputtags::status['-1'];
1220: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1221: my $in_order_show=&ordered_show_check();
1.159 albertel 1222: my $result='';
1223: if ( $target eq 'meta' ) {
1224: $result='';
1.249 albertel 1225: } elsif ($target eq 'grade') {
1226: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1227: !$hidden && $in_order_show) {
1.249 albertel 1228: $result=&Apache::inputtags::grade;
1229: } else {
1230: # move any submission data to .hidden
1231: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1232: }
1.283 albertel 1233: } elsif (($target eq 'web' || $target eq 'tex') &&
1234: !$hidden && $in_order_show) {
1.159 albertel 1235: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1236: $target);
1.212 albertel 1237: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1238: $gradestatus='';
1239: }
1.159 albertel 1240: $result=$gradestatus;
1.265 sakharuk 1241: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1242: } elsif ($target eq 'edit') {
1243: $result=&Apache::edit::end_table();
1.159 albertel 1244: }
1245: pop @Apache::inputtags::status;
1246: $Apache::inputtags::part='';
1247: return $result;
1.11 albertel 1248: }
1.1 albertel 1249:
1.25 albertel 1250: sub start_preduedate {
1.159 albertel 1251: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1252: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1.236 albertel 1253: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.159 albertel 1254: if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1255: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1256: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.159 albertel 1257: &Apache::lonxml::get_all_text("/preduedate",$parser);
1258: }
1.24 albertel 1259: }
1.159 albertel 1260: return '';
1.24 albertel 1261: }
1262:
1.25 albertel 1263: sub end_preduedate {
1.159 albertel 1264: return '';
1.24 albertel 1265: }
1266:
1.25 albertel 1267: sub start_postanswerdate {
1.159 albertel 1268: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.234 albertel 1269: if ($target eq 'web' || $target eq 'grade') {
1.159 albertel 1270: if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1271: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1272: }
1273: } elsif ($target eq 'tex') {
1.234 albertel 1274: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1.159 albertel 1275: }
1276: return '';
1.24 albertel 1277: }
1278:
1.25 albertel 1279: sub end_postanswerdate {
1.159 albertel 1280: return '';
1.24 albertel 1281: }
1282:
1.25 albertel 1283: sub start_notsolved {
1.159 albertel 1284: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1285: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1286: $target eq 'tex') {
1287: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1288: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1289: if ($gradestatus =~ /^correct/ &&
1290: &Apache::response::show_answer()) {
1.159 albertel 1291: &Apache::lonxml::debug("skipping");
1292: &Apache::lonxml::get_all_text("/notsolved",$parser);
1293: }
1.24 albertel 1294: }
1.159 albertel 1295: return '';
1.24 albertel 1296: }
1297:
1.25 albertel 1298: sub end_notsolved {
1.159 albertel 1299: return '';
1.24 albertel 1300: }
1301:
1302: sub start_solved {
1.159 albertel 1303: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1304: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1305: $target eq 'tex') {
1306: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1307: if ($gradestatus !~ /^correct/ ||
1308: !&Apache::response::show_answer()) {
1.159 albertel 1309: &Apache::lonxml::get_all_text("/solved",$parser);
1310: }
1.24 albertel 1311: }
1.159 albertel 1312: return '';
1.24 albertel 1313: }
1314:
1315: sub end_solved {
1.248 albertel 1316: return '';
1317: }
1318:
1319: sub start_problemtype {
1320: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1321: my $result;
1322: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1323: $target eq 'tex' || $target eq 'analyze') {
1324: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1325: if (!defined($mode)) { $mode='show'; }
1326: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1327: my $found=0;
1328: foreach my $type (split(',',$for)) {
1329: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1330: }
1331: if ($mode eq 'show' && !$found) {
1332: &Apache::lonxml::get_all_text("/problemtype",$parser);
1333: }
1334: if ($mode eq 'hide' && $found) {
1335: &Apache::lonxml::get_all_text("/problemtype",$parser);
1336: }
1337: } elsif ($target eq 'edit') {
1338: $result .=&Apache::edit::tag_start($target,$token);
1339: $result.=&Apache::edit::select_arg('Mode:','mode',
1340: [['show','Show'],
1341: ['hide','Hide']]
1342: ,$token);
1343: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1344: [ ['exam','Exam/Quiz Problem'],
1345: ['survey','Survey'],
1346: ['problem','Homework Problem'] ]
1347: ,$token);
1348: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1349: } elsif ($target eq 'modified') {
1350: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1351: $safeeval,'mode','for');
1352: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1353: }
1354: return $result;
1355: }
1356:
1357: sub end_problemtype {
1.159 albertel 1358: return '';
1.24 albertel 1359: }
1.34 albertel 1360:
1361: sub start_startouttext {
1.159 albertel 1362: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1363: my @result=(''.'');
1364: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1365: return (@result);
1.34 albertel 1366: }
1.159 albertel 1367:
1.34 albertel 1368: sub end_startouttext {
1.159 albertel 1369: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1370: my $result='';
1371: my $text='';
1372:
1373: if ($target eq 'edit') {
1374: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1.211 albertel 1375: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1376: <td>".&mt('Delete:').
1.159 albertel 1377: &Apache::edit::deletelist($target,$token)
1378: ."</td>
1.42 albertel 1379: <td>".
1.159 albertel 1380: &Apache::edit::insertlist($target,$token).
1381: &Apache::edit::end_row().
1382: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1383: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1384: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1385: }
1386: if ($target eq 'modified') {
1.219 albertel 1387: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1388: }
1389: if ($target eq 'tex') {
1390: $result .= '\noindent ';
1391: }
1392: return $result;
1.34 albertel 1393: }
1.159 albertel 1394:
1.34 albertel 1395: sub start_endouttext {
1.159 albertel 1396: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1397: my $result='';
1398: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1399: if ($target eq "modified") {
1400: $result='<endouttext />'.
1401: &Apache::edit::handle_insertafter('startouttext'); }
1402: return $result;
1.34 albertel 1403: }
1.159 albertel 1404:
1.34 albertel 1405: sub end_endouttext {
1.159 albertel 1406: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1407: my @result=('','');
1408: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1409: return (@result);
1.34 albertel 1410: }
1.159 albertel 1411:
1.45 albertel 1412: sub delete_startouttext {
1.159 albertel 1413: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1414: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1415: my $text=$$parser['-1']->get_text("/endouttext");
1416: my $ntoken=$$parser['-1']->get_token();
1417: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1418: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1419: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1420: # they did the last time round
1421: &Apache::lonxml::increasedepth($ntoken);
1422: &Apache::lonxml::decreasedepth($ntoken);
1423: return 1;
1.193 www 1424: }
1425:
1426: sub start_simpleeditbutton {
1427: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1428: my $result='';
1.284 albertel 1429: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1430: ($target eq 'web') &&
1.284 albertel 1431: (&Apache::lonnet::allowed('srm',$env{'request.course.id'}))) {
1432: my $url=$env{'request.noversionuri'};
1.193 www 1433: $url=~s/\?.*$//;
1.278 albertel 1434: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1435: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1436: '<a href="'.$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 1437: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1438: }
1439: return $result;
1440: }
1441:
1442: sub end_simpleeditbutton {
1443: return '';
1.45 albertel 1444: }
1.34 albertel 1445:
1.1 albertel 1446: 1;
1447: __END__
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