Annotation of loncom/homework/structuretags.pm, revision 1.317
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.317 ! albertel 4: # $Id: structuretags.pm,v 1.316 2005/11/08 17:53:20 www Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.133 sakharuk 30:
1.1 albertel 31: package Apache::structuretags;
32:
33: use strict;
34: use Apache::lonnet;
1.101 sakharuk 35: use Apache::File();
1.147 www 36: use Apache::lonmenu;
1.210 albertel 37: use Apache::lonlocal;
1.231 sakharuk 38: use Apache::lonxml;
1.267 albertel 39: use Time::HiRes qw( gettimeofday tv_interval );
1.78 harris41 40: BEGIN {
1.248 albertel 41: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));
1.10 albertel 42: }
43:
44: sub start_web {
1.159 albertel 45: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.200 albertel 46: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser);
47: if ($target eq 'web') {
48: return $bodytext;
1.159 albertel 49: }
50: return '';
1.10 albertel 51: }
52:
53: sub end_web {
1.44 ng 54: return '';
1.10 albertel 55: }
56:
57: sub start_tex {
1.159 albertel 58: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.198 sakharuk 59: my $result='';
1.200 albertel 60: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser);
61: if ($target eq 'tex') {
62: return $bodytext.' ';
1.159 albertel 63: }
1.198 sakharuk 64: return $result;;
1.10 albertel 65: }
66:
67: sub end_tex {
1.44 ng 68: return '';
1.9 albertel 69: }
70:
1.290 albertel 71: sub body_tag_start {
72: my ($target,$background,$bgcolor)=@_;
73: my $body_tag_start='<body onload="'.&Apache::lonmenu::loadevents().'" '.
74: 'onunload="'.&Apache::lonmenu::unloadevents().'" ';
75: if ($env{'browser.imagesuppress'} eq 'on') { $background=''; }
76: if ($background) {
1.306 albertel 77: &Apache::lonxml::extlink($background);
1.290 albertel 78: $body_tag_start.='background="'.$background.'" ';
79: } else {
80: if (($bgcolor) && ($env{'browser.blackwhite'} ne 'on')) {
81: $body_tag_start.='bgcolor="'.$bgcolor.'" ';
82: } else {
83: $body_tag_start.='bgcolor="#ffffff"';
84: }
85: }
86: if ($env{'browser.fontenhance'} eq 'on') {
87: $body_tag_start.=' style="font-size: x-large;" ';
88: }
89: $body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1);
1.297 albertel 90:
91: &Apache::lontexconvert::jsMath_reset();
1.290 albertel 92: if ($env{'environment.texengine'} eq 'jsMath') {
1.297 albertel 93: $body_tag_start.=&Apache::lontexconvert::jsMath_header();
1.290 albertel 94: }
95: return $body_tag_start;
96: }
1.291 albertel 97:
1.48 albertel 98: sub page_start {
1.159 albertel 99: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
100: my %found;
1.207 albertel 101: foreach my $taginside (@$tagstack) {
1.159 albertel 102: foreach my $taglookedfor ('html','body','form') {
103: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
104: }
105: }
106:
107: my $result;
108: my $head_tag_start;
109: if (!defined($found{'html'})) {
110: $result=&Apache::londefdef::start_html($target,$token,$tagstack,
111: $parstack,$parser,$safeeval);
1.254 www 112: $head_tag_start='<head>'.&Apache::lonmenu::registerurl(undef,$target).
1.261 www 113: &Apache::lonhtmlcommon::htmlareaheaders().
1.270 albertel 114: &Apache::lonhtmlcommon::spellheader().
115: &Apache::lonxml::fontsettings();
1.159 albertel 116: }
117: my $body_tag_start;
1.284 albertel 118: if (!defined($found{'body'}) && $env{'request.state'} eq 'construct'
119: && $env{'environment.remote'} eq 'off') {
1.298 albertel 120: if ($target eq 'web' || $target eq 'edit') {
1.297 albertel 121: $body_tag_start=&Apache::loncommon::bodytag();
122: $body_tag_start.=&Apache::lonxml::message_location();
123: }
1.272 albertel 124: } elsif (!defined($found{'body'})) {
1.159 albertel 125: my $background=&Apache::lonxml::get_param('background',$parstack,
126: $safeeval);
1.290 albertel 127: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
128: $safeeval);
1.299 albertel 129: $body_tag_start=&body_tag_start($target,$background,$bgcolor);
1.291 albertel 130: if ( ($target eq 'web' || $target eq 'webgrade')
131: && $env{'request.state'} ne 'construct') {
1.165 albertel 132: my ($symb,undef,undef,undef,$publicuser)=
133: &Apache::lonxml::whichuser();
134: if ($symb eq '' && !$publicuser) {
1.159 albertel 135: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
1.211 albertel 136: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
1.159 albertel 137: $body_tag_start.=$help;
138: }
139: }
1.245 albertel 140: $body_tag_start.=&Apache::lonxml::message_location();
1.159 albertel 141: }
142: my $form_tag_start;
143: if (!defined($found{'form'})) {
1.281 albertel 144: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="POST" action="';
1.284 albertel 145: my $uri=$env{'request.uri'};
146: if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
1.271 albertel 147: $form_tag_start.=$uri.'">';
1.159 albertel 148: }
149: return ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.105 albertel 150: }
151:
1.141 matthew 152: #use Time::HiRes();
1.105 albertel 153: sub get_resource_name {
1.159 albertel 154: my ($parstack,$safeeval)=@_;
1.204 albertel 155: if (defined($Apache::lonhomework::name)) {
156: return $Apache::lonhomework::name;
157: }
1.279 albertel 158: my ($symb)=&Apache::lonxml::whichuser();
159: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 160: if ($name eq '') {
161: $name=&Apache::lonnet::EXT('resource.title');
162: if ($name eq 'con_lost') { $name = ''; }
163: }
1.204 albertel 164: if ($name!~/\S+/) {
1.284 albertel 165: $name=$env{'request.uri'};
1.205 albertel 166: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 167: }
1.159 albertel 168: $Apache::lonhomework::name=$name;
169: return $name;
1.105 albertel 170: }
171:
172: sub setup_rndseed {
1.159 albertel 173: my ($safeeval)=@_;
174: my $rndseed;
1.162 albertel 175: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 176: if ($env{'request.state'} eq "construct" || $symb eq '' ||
1.247 albertel 177: $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 178: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 ! albertel 179: ['rndseed']);
1.284 albertel 180: $rndseed=$env{'form.rndseed'};
1.159 albertel 181: if (!$rndseed) {
1.162 albertel 182: $rndseed=$Apache::lonhomework::history{'rndseed'};
183: if (!$rndseed) {
184: $rndseed=time;
185: }
1.284 albertel 186: $env{'form.rndseed'}=$rndseed;
1.162 albertel 187: }
1.284 albertel 188: if ($env{'form.resetdata'} eq &mt('New Problem Variation') ||
189: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 190: srand(time);
191: $rndseed=int(rand(2100000000));
1.284 albertel 192: $env{'form.rndseed'}=$rndseed;
193: delete($env{'form.resetdata'});
194: delete($env{'form.newrandomization'});
1.159 albertel 195: }
1.187 albertel 196: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 197: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 198: }
1.247 albertel 199: if ($Apache::lonhomework::history{'resource.CODE'}) {
200: $rndseed=&Apache::lonnet::rndseed();
201: }
1.221 albertel 202: if ($safeeval) {
203: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 204: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 205: }
1.159 albertel 206: }
207: return $rndseed;
1.105 albertel 208: }
209:
1.268 albertel 210: sub remember_problem_state {
211: return '
1.284 albertel 212: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
213: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
214: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 215: }
216:
1.105 albertel 217: sub problem_edit_header {
1.268 albertel 218: return '<input type="hidden" name="submitted" value="edit" />'.
219: &Apache::structuretags::remember_problem_state().'
1.210 albertel 220: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 221: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
222: <input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
223: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
224: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
225: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.260 albertel 226: &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
227: .'</td></tr></table>'.
1.282 albertel 228: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 229: }
230:
231: sub problem_edit_footer {
1.210 albertel 232: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 233: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
234: &Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).
1.280 albertel 235: "\n</form>\n".&Apache::loncommon::endbodytag()."\n</html>";
1.105 albertel 236: }
237:
1.235 albertel 238: sub option {
239: my ($value,$name) = @_;
240: my $result ="<option value='".$value."' ";
1.284 albertel 241: if ($env{'form.'.$name} eq $value) {
1.235 albertel 242: $result.=" selected='on' ";
243: }
244: $result.='>';
245: return $result;
246: }
247:
1.105 albertel 248: sub problem_web_to_edit_header {
1.159 albertel 249: my ($rndseed)=@_;
1.313 albertel 250: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
251: if (!$Apache::lonhomework::parsing_a_task) {
252: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
253: }
254: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 255: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
256: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 257: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 258: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 259: $rndseed.'"
1.270 albertel 260: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 261: <label><input type="checkbox" name="showallfoils" ';
1.315 albertel 262: my $show_all_foils_text =
263: ($Apache::lonhomework::parsing_a_task) ?
264: &mt(' Show All Instances')
265: : &mt(' Show All Foils');
266:
1.284 albertel 267: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.315 albertel 268: $result.= ' />'.$show_all_foils_text.
1.228 www 269: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.281 albertel 270: '</label><hr />';
1.313 albertel 271: if (!$Apache::lonhomework::parsing_a_task) {
272: $result.="
1.235 albertel 273: <nobr>
274: Problem Status:
275: <select name='problemstate'>
1.270 albertel 276: <option value=''></option>
1.235 albertel 277: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
278: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
279: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
280: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
281: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
282: </select>
283: </nobr>
284: <nobr>
285: Problem Type:
286: <select name='problemtype'>
1.270 albertel 287: <option value=''></option>
1.242 albertel 288: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
289: ".&option('problem','problemtype').&mt("Homework problem")."</option>
290: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 291: </select>
292: </nobr>
293: <nobr>
294: Feedback Mode:
295: <select name='problemstatus'>
296: <option value=''></option>
1.242 albertel 297: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
298: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 299: </select>
300: </nobr>
1.242 albertel 301: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 302: <hr />";
1.313 albertel 303: my $numtoanalyze=$env{'form.numtoanalyze'};
304: if (!$numtoanalyze) { $numtoanalyze=20; }
305: $result.= '<input type="submit" name="problemmode" value='.
306: &mt('"Calculate answers').'" /> for
1.136 albertel 307: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 308: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
309: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 310: '',undef,undef,300).
1.210 albertel 311: '<hr />';
1.313 albertel 312: }
1.159 albertel 313: return $result;
1.48 albertel 314: }
315:
1.65 albertel 316: sub initialize_storage {
1.159 albertel 317: %Apache::lonhomework::results=();
1.162 albertel 318: %Apache::lonhomework::history=();
1.159 albertel 319: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.284 albertel 320: if ($env{'request.state'} eq 'construct' || $symb eq '') {
1.159 albertel 321: %Apache::lonhomework::history=
1.284 albertel 322: &Apache::lonnet::tmprestore($env{'request.uri'},'',$domain,$name);
1.159 albertel 323: my ($temp)=keys %Apache::lonhomework::history ;
324: &Apache::lonxml::debug("Return message of $temp");
325: } else {
326: %Apache::lonhomework::history=
327: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
328: }
329: #ignore error conditions
1.67 albertel 330: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 331: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 332: }
333:
334: # -------------------------------------------------------------finalize_storage
335: # Stores away the result has to a student's environment
336: # checks form.grade_ for specific values, other wises stores
337: # to the running users environment
1.285 raeburn 338: # Will increment totals for attempts, students, and corrects
339: # if running user has student role.
1.65 albertel 340: sub finalize_storage {
1.159 albertel 341: my $result;
1.289 albertel 342: if (%Apache::lonhomework::results) {
1.159 albertel 343: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.284 albertel 344: if ($env{'request.state'} eq 'construct' || $symb eq '') {
345: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 346: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.284 albertel 347: $env{'request.uri'},'',$domain,$name);
1.159 albertel 348: &Apache::lonxml::debug('Construct Store return message:'.$result);
349: } else {
350: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
351: $symb,$courseid,$domain,$name);
352: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 353: if ($env{'request.role'} =~/^st/) {
354: &store_aggregates($symb,$courseid);
355: }
1.159 albertel 356: }
1.67 albertel 357: }
1.159 albertel 358: return $result;
1.65 albertel 359: }
1.289 albertel 360: use Data::Dumper;
1.65 albertel 361:
1.285 raeburn 362: # -------------------------------------------------------------store_aggregates
363: # Sends hash of values to be incremented in nohist_resourcetracker.db
364: # for the course. Increments total number of attempts, unique students
365: # and corrects for each part for an instance of a problem, as appropriate.
366: sub store_aggregates {
367: my ($symb,$courseid) = @_;
1.286 albertel 368: my %aggregate;
369: my @parts;
1.288 albertel 370: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
371: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 372: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 373: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 374: push(@parts, $1);
1.285 raeburn 375: }
376: }
1.286 albertel 377: foreach my $part (@parts) {
378: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
379: eq 'APPROX_ANS' ||
380: $Apache::lonhomework::results{'resource.'.$part.'.award'}
381: eq 'EXACT_ANS') {
1.287 albertel 382: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 383: }
1.286 albertel 384: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 385: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 386: } else {
1.293 albertel 387: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 388: if ($last_reset) {
1.293 albertel 389: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 390: $aggregate{$symb."\0".$part."\0users"} = 1;
391: }
392: }
1.285 raeburn 393: }
1.287 albertel 394: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 395: }
1.292 raeburn 396: if (keys (%aggregate) > 0) {
1.289 albertel 397: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 398: $cdomain,$cname);
399: }
400: }
1.289 albertel 401:
1.65 albertel 402: sub checkout_msg {
1.211 albertel 403: my %lt=&Apache::lonlocal::texthash(
404: 'resource'=>'The resource needs to be checked out',
405: '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.',
406: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
407: 'checkout'=>'Check out Exam for Viewing',
408: 'checkout?'=>'Check out Exam?');
1.159 albertel 409: return (<<ENDCHECKOUT);
1.211 albertel 410: <h2>$lt{'resource'}</h2>
411: <p>$lt{'id_expln'}</p>
412: <font color="red">
413: <p>$lt{'warning'}</p>
1.91 albertel 414: </font>
1.284 albertel 415: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.91 albertel 416: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 417: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 418: </form>
419: ENDCHECKOUT
420: }
421:
1.252 albertel 422: sub firstaccess_msg {
1.253 albertel 423: my ($time,$symb)=@_;
424: my ($map)=&Apache::lonnet::decode_symb($symb);
425: my $foldertitle=&Apache::lonnet::gettitle($map);
426: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.252 albertel 427: return (<<ENDCHECKOUT);
1.253 albertel 428: <h2>The resources in "$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 429: <form name="markaccess" method="POST" action="$env{'request.uri'}">
1.252 albertel 430: <input type="hidden" name="markaccess" value="yes" />
431: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
432: </form>
433: ENDCHECKOUT
434: }
435:
1.204 albertel 436: sub init_problem_globals {
437: my ($type)=@_;
438: #initialize globals
1.308 foxr 439: # For problems, we start out in part 0 (outside a <part> tag).
440: # and part 0 is used to describe the main body of the <problem>
441: #
1.204 albertel 442: if ($type eq 'problem') {
443: $Apache::inputtags::part='0';
444: @Apache::inputtags::partlist=('0');
1.266 albertel 445: $Apache::lonhomework::problemstatus=&get_problem_status('0');
446: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 447:
1.266 albertel 448: } elsif ($type eq 'library') {
1.204 albertel 449: $Apache::inputtags::part='';
450: @Apache::inputtags::partlist=();
451: $Apache::lonhomework::problemstatus='';
1.266 albertel 452: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 453:
1.304 albertel 454: } elsif ($type eq 'Task') {
455: $Apache::inputtags::part='0';
456: @Apache::inputtags::partlist=('0');
457: $Apache::lonhomework::problemstatus='';
458: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 459: }
460: @Apache::inputtags::responselist = ();
461: @Apache::inputtags::importlist = ();
462: @Apache::inputtags::previous=();
463: @Apache::inputtags::previous_version=();
464: $Apache::structuretags::printanswer='No';
465: @Apache::structuretags::whileconds=();
466: @Apache::structuretags::whilebody=();
467: @Apache::structuretags::whileline=();
468: $Apache::lonhomework::scantronmode=0;
469: undef($Apache::lonhomework::name);
470:
471: }
472:
473: sub reset_problem_globals {
474: my ($type)=@_;
475: undef(%Apache::lonhomework::history);
476: undef(%Apache::lonhomework::results);
477: undef($Apache::inputtags::part);
1.208 albertel 478: #don't undef this, lonhomework.pm takes care of this, we use this to
479: #detect if we try to do 2 problems in one file
480: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 481: undef($Apache::lonhomework::name);
482: }
483:
1.241 albertel 484: sub set_problem_state {
1.240 albertel 485: my ($part)=@_;
1.284 albertel 486: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 487: $Apache::lonhomework::history{"resource.$part.solved"}=
488: 'correct_by_student';
489: }
490: }
491:
1.241 albertel 492: sub get_problem_status {
493: my ($part)=@_;
1.267 albertel 494: my $problem_status;
1.284 albertel 495: if ($env{'request.state'} eq 'construct' &&
496: defined($env{'form.problemstatus'})) {
497: $problem_status=$env{'form.problemstatus'};
1.267 albertel 498: } else {
499: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
500: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 501: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 502: }
503: return $problem_status;
504: }
505:
1.9 albertel 506: sub start_problem {
1.159 albertel 507: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 508:
1.311 foxr 509: # We'll use the redirection to fix up printing of duedates.
1.312 albertel 510: &Apache::lonxml::startredirection();
1.311 foxr 511:
1.308 foxr 512: # Problems don't nest and we don't allow more than one <problem> in
513: # a .problem file.
514: #
1.184 albertel 515: if ( $Apache::inputtags::part ne '' ||
516: $Apache::lonhomework::parsing_a_problem) {
517: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
518: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
1.159 albertel 519: return '';
520: }
1.184 albertel 521:
522: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 523: &init_problem_globals('problem');
1.166 albertel 524:
1.284 albertel 525: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 526: $Apache::lonhomework::scantronmode=1;
527: }
1.161 albertel 528:
1.246 albertel 529: &initialize_storage();
1.159 albertel 530: if ($target ne 'analyze') {
531: if ($target eq 'web') {
532: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 533: }
1.284 albertel 534: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 535: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 536: if (($env{'request.state'} eq 'construct') &&
537: defined($env{'form.problemtype'})) {
538: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 539: }
1.240 albertel 540: &Apache::lonxml::debug("Found this to be of type :$Apache::ltonhomework::type:");
1.159 albertel 541: }
1.164 albertel 542: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 543: my $uri=$env{'request.uri'};
1.159 albertel 544: if ($uri=~/\.(\w+)$/) {
545: $Apache::lonhomework::type=$1;
546: &Apache::lonxml::debug("Using type of $1");
547: } else {
548: $Apache::lonhomework::type='problem';
549: &Apache::lonxml::debug("Using default type, problem, :$uri:");
550: }
1.87 albertel 551: }
1.301 albertel 552: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 553:
1.159 albertel 554: #added vars to the scripting enviroment
1.213 albertel 555: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 556: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 557: &Apache::run::run($expression,$safeeval);
1.159 albertel 558: my $status;
559: my $accessmsg;
560:
561: #should get back a <html> or the neccesary stuff to start XML/MathML
562: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
563: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.284 albertel 564: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 565:
566: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
567: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
568: $target eq 'tex') {
569: #handle exam checkout
570: if ($Apache::lonhomework::type eq 'exam') {
571: my $token=
572: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 573: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 574: $token=&Apache::lonxml::maketoken();
575: $Apache::lonhomework::history{"resource.0.outtoken"}=
576: $token;
577: }
578: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 579: }
1.284 albertel 580: if ($env{'form.markaccess'}) {
1.252 albertel 581: &Apache::lonnet::set_first_access('map');
582: }
1.159 albertel 583: #handle rand seed in construction space
584: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 585: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 586: if ($env{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 587: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
588: $rndseed.'" />'.
589: '<input type="submit" name="resetdata"
1.211 albertel 590: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 591: '<input type="hidden" name="username"
1.284 albertel 592: value="'.$env{'form.username'}.'" />';
593: if ($env{'user.adv'}) {
1.267 albertel 594: $form_tag_start.=
1.300 albertel 595: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 596: if (defined($env{'form.showallfoils'})) {
1.267 albertel 597: $form_tag_start.='checked="on"';
598: }
1.300 albertel 599: $form_tag_start.= ' />'.&mt(' Show All Foils').
600: '</label>';
1.267 albertel 601: }
602: $form_tag_start.='<hr />';
1.162 albertel 603: }
1.159 albertel 604: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
605: push (@Apache::inputtags::status,$status);
606: my $expression='$external::datestatus="'.$status.'";';
607: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
608: &Apache::run::run($expression,$safeeval);
609: &Apache::lonxml::debug("Got $status");
610: if (( $status eq 'CLOSED' ) ||
611: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 612: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 613: ( $status eq 'BANNED') ||
1.216 albertel 614: ( $status eq 'UNAVAILABLE') ||
615: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 616: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
617: if ( $target eq "web" ) {
618: $result.= $head_tag_start.'</head>';
619: my $msg=$body_tag_start;
620: if ($status eq 'UNAVAILABLE') {
1.245 albertel 621: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 622: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 623: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 624: }
1.216 albertel 625: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 626: $msg.='The problem '.$accessmsg;
627: } elsif ($status eq 'UNCHECKEDOUT') {
628: $msg.=&checkout_msg;
1.252 albertel 629: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 630: $msg.=&firstaccess_msg($accessmsg,$symb);
1.159 albertel 631: }
632: $result.=$msg.'<br />';
633: } elsif ($target eq 'tex') {
634: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
635: if ($status eq 'UNAVAILABLE') {
1.211 albertel 636: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 637: } else {
1.211 albertel 638: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 639: }
640: }
641: } elsif ($target eq 'web') {
642: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 643: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 644: $body_tag_start \n $form_tag_start".
1.227 albertel 645: '<input type="hidden" name="submitted" value="yes" />';
646: # create a page header and exit
1.284 albertel 647: if ($env{'request.state'} eq "construct") {
648: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 649: }
650: # if we are viewing someone else preserve that info
1.284 albertel 651: if (defined $env{'form.grade_symb'}) {
1.227 albertel 652: foreach my $field ('symb','courseid','domain','username') {
653: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 654: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 655: }
656: }
657: } elsif ($target eq 'tex') {
1.192 sakharuk 658: my $startminipage = '';
1.284 albertel 659: if (not $env{'form.problem_split'}=~/yes/) {
1.192 sakharuk 660: $startminipage = '\begin{minipage}{\textwidth}';
1.178 sakharuk 661: }
1.159 albertel 662: my $id = $Apache::inputtags::part;
663: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 664: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.223 sakharuk 665: my @packages = split /,/,$packages;
666: my $allow_print_points = 0;
667: foreach my $partial_key (@packages) {
1.230 albertel 668: if ($partial_key=~m/^part_0$/) {
1.223 sakharuk 669: $allow_print_points=1;
1.159 albertel 670: }
671: }
1.276 albertel 672: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
673: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1.302 albertel 674: if (lc($env{'course.'.$env{'request.course.id'}.
675: '.disableexampointprint'}) eq 'yes') {
676: $allow_print_points=0;
677: }
1.308 foxr 678: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
679: my $begin_doc='\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent ';
680: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
681: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
682:
1.312 albertel 683: # Figure out what the due date is and if we need to print
684: # it in the problem header. We have been logging the
685: # last due date written to file.
1.308 foxr 686:
687: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
688: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.159 albertel 689: my $temp_file;
1.284 albertel 690: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1.308 foxr 691:
1.312 albertel 692: # Figure out what the last printed due date is or set it
693: # to the epoch if no duedates have been printed.
1.308 foxr 694:
695: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1.159 albertel 696: if (-e $filename) {
697: $temp_file = Apache::File->new($filename);
1.308 foxr 698: my @due_file = <$temp_file>;
699: $due_file_content = $due_file[$#due_file];
700: chomp $due_file_content;
701: }
1.312 albertel 702:
703: # comparisons of the absolute times
1.309 foxr 704: if ($due_file_content != $duetime) {
1.159 albertel 705: $temp_file = Apache::File->new('>'.$filename);
1.308 foxr 706: print $temp_file "$duetime\n";
1.284 albertel 707: if (not $env{'request.symb'} =~ m/\.page_/) {
1.159 albertel 708: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1.304 albertel 709: $result .= $begin_doc.
710: '\textit{Due date: '.$duedate.'} '.$toc_line;
1.159 albertel 711: } else {
1.304 albertel 712: $result .= $begin_doc.$toc_line;
1.159 albertel 713: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
714: }
1.104 sakharuk 715: } else {
1.159 albertel 716: $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
1.104 sakharuk 717: }
1.101 sakharuk 718: } else {
1.284 albertel 719: if (not $env{'request.symb'} =~ m/\.page_/) {
1.304 albertel 720: $result .= $begin_doc.$toc_line;
1.159 albertel 721: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
722: } else {
723: $result .= '\vskip 1mm \\\\\\\\';
724: }
725: }
1.99 sakharuk 726: }
1.159 albertel 727: } elsif ($target eq 'edit') {
728: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
729: &problem_edit_header();
1.226 albertel 730: $Apache::lonxml::warnings_error_header=
731: &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 732: my $temp=&Apache::edit::insertlist($target,$token);
733: $result.=$temp;
734: } elsif ($target eq 'modified') {
735: $result=$token->[4];
736: $result.=&Apache::edit::handle_insert();
737: } else {
738: # page_start returned a starting result, delete it if we don't need it
739: $result = '';
1.99 sakharuk 740: }
1.159 albertel 741: return $result;
1.9 albertel 742: }
743:
744: sub end_problem {
1.159 albertel 745: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.312 albertel 746: my $result= &Apache::lonxml::endredirection(); # started in &start_problem
1.310 foxr 747:
1.159 albertel 748: my $status=$Apache::inputtags::status['-1'];
749: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
750: $target eq 'tex') {
1.249 albertel 751: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 752: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 753: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
754: &Apache::inputtags::grade;
755: } else {
756: # move any submission data to .hidden
757: &Apache::inputtags::hidealldata($Apache::inputtags::part);
758: }
1.159 albertel 759: } elsif ( ($target eq 'web' || $target eq 'tex') &&
760: $Apache::inputtags::part eq '0' &&
1.252 albertel 761: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 762: # if part is zero, no <part>s existed, so we need show the current
763: # grading status
764: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
765: $result.= $gradestatus;
766: }
767: if (
1.284 albertel 768: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 769: ($target eq 'answer') || ($target eq 'tex')
770: ) {
1.227 albertel 771: if ($target ne 'tex' &&
1.284 albertel 772: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 773: $result.="</form>";
774: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
1.159 albertel 775: }
776: if ($target eq 'web') {
1.281 albertel 777: $result.=&Apache::lonxml::xmlend().'</html>';
1.159 albertel 778: } elsif ($target eq 'tex') {
1.178 sakharuk 779: my $endminipage = '';
1.284 albertel 780: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 781: $endminipage = '\end{minipage}';
782: }
1.284 albertel 783: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 784: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 785: $result=~s/<\/html>//;
1.159 albertel 786: } else {
1.262 sakharuk 787: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 788: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 789: $result .= $endminipage.'\end{document} ';
790: } else {
791: $result .= '';
792: }
1.159 albertel 793: }
794: }
795: }
796: if ($target eq 'grade') {
797: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
798: &finalize_storage();
799: }
1.284 albertel 800: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
801: && $env{'form.answer_output_mode'} ne 'tex') {
1.294 albertel 802: $result.=&Apache::lonxml::xmlend().'</html>';
803: # normally we get it from above, but in CSTR
1.172 albertel 804: # we always show answer mode too.
1.159 albertel 805: }
806: } elsif ($target eq 'meta') {
807: if ($Apache::inputtags::part eq '0') {
1.179 albertel 808: @Apache::inputtags::response=();
1.159 albertel 809: $result=&Apache::response::mandatory_part_meta;
810: }
1.215 albertel 811: $result.=&Apache::response::meta_part_order();
1.258 albertel 812: $result.=&Apache::response::meta_response_order();
1.159 albertel 813: } elsif ($target eq 'edit') {
814: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 815: $result .= &problem_edit_footer();
1.159 albertel 816: }
1.155 albertel 817:
1.284 albertel 818: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 819: &Apache::inputtags::check_for_duplicate_ids();
820: }
1.204 albertel 821:
822: &reset_problem_globals('problem');
1.159 albertel 823:
824: return $result;
1.48 albertel 825: }
826:
1.108 albertel 827:
1.48 albertel 828: sub start_library {
1.159 albertel 829: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
830: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 831: if ($$tagstack[0] eq 'library') {
832: &init_problem_globals('library');
833: $Apache::lonhomework::type='problem';
834: }
1.159 albertel 835: if ($target eq 'edit') {
836: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
837: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
838: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
839: &problem_edit_header();
840: my $temp=&Apache::edit::insertlist($target,$token);
841: $result.=$temp;
842: } elsif ($target eq 'modified') {
843: $result=$token->[4];
844: $result.=&Apache::edit::handle_insert();
845: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 846: $env{'request.state'} eq "construct" ) {
1.159 albertel 847: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
848: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
849: my $name=&get_resource_name($parstack,$safeeval);
850: my $rndseed=&setup_rndseed($safeeval);
851: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 852: $body_tag_start \n $form_tag_start".
1.159 albertel 853: '<input type="hidden" name="submitted" value="yes" />';
854: $result.=&problem_web_to_edit_header($rndseed);
855: }
856: return $result;
1.48 albertel 857: }
858:
859: sub end_library {
1.159 albertel 860: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
861: my $result='';
862: if ($target eq 'edit') {
863: $result=&problem_edit_footer();
864: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 865: $env{'request.state'} eq "construct") {
1.280 albertel 866: $result.='</form>'.&Apache::loncommon::endbodytag().
867: &Apache::lonxml::xmlend();
1.159 albertel 868: }
1.204 albertel 869: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 870: return $result;
1.197 www 871: }
872:
873: sub start_definetag {
874: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
875:
876: my $result;
877:
878: my $name = $token->[2]->{'name'};
879: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
880: if ($name=~/^\//) {
881: $result=
882: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
883: } else {
884: $result=
885: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
886: }
887: $skip=~s/\</\<\;/gs;
888: $skip=~s/\>/\>\;/gs;
889: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
890: return $result;
891: }
892:
893: sub end_definetag {
894: return '';
1.1 albertel 895: }
896:
897: sub start_block {
1.201 albertel 898: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 899:
900: my $result;
1.1 albertel 901:
1.160 albertel 902: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 903: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 904: my $code = $token->[2]->{'condition'};
1.201 albertel 905: if (defined($code)) {
1.137 albertel 906: if (!$Apache::lonxml::default_homework_loaded) {
907: &Apache::lonxml::default_homework_load($safeeval);
908: }
1.131 albertel 909: $result = &Apache::run::run($code,$safeeval);
910: &Apache::lonxml::debug("block :$code: returned :$result:");
911: } else {
912: $result='1';
913: }
914: if ( ! $result ) {
1.201 albertel 915: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 916: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
917: }
918: $result='';
919: } elsif ($target eq 'edit') {
920: $result .=&Apache::edit::tag_start($target,$token);
921: $result .=&Apache::edit::text_arg('Test Condition:','condition',
922: $token,40);
923: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
924: } elsif ($target eq 'modified') {
925: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
926: $safeeval,'condition');
927: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 928: }
1.131 albertel 929: return $result;
1.1 albertel 930: }
931:
932: sub end_block {
1.167 www 933: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
934: my $result;
935: if ($target eq "edit") {
936: $result.= &Apache::edit::tag_end($target,$token,'');
937: }
938: return $result;
939: }
940:
941: sub start_languageblock {
1.201 albertel 942: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 943:
944: my $result;
945:
946: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
947: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 948: my $include = $token->[2]->{'include'};
949: my $exclude = $token->[2]->{'exclude'};
950: my %languages=&Apache::loncommon::display_languages();
951: $result='1';
952: if ($include) {
953: $result='';
954: foreach (split(/\,/,$include)) {
955: if ($languages{$_}) { $result='1'; }
956: }
957: }
958: if ($exclude) {
959: foreach (split(/\,/,$exclude)) {
960: if ($languages{$_}) { $result='0'; }
961: }
962: }
963: if ( ! $result ) {
964: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
965: $style);
966: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
967: }
968: $result='';
1.167 www 969: } elsif ($target eq 'edit') {
970: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 971: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 972: $token,40);
1.211 albertel 973: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 974: $token,40);
975: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
976: } elsif ($target eq 'modified') {
977: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 978: $safeeval,'include',
979: 'exclude');
1.167 www 980: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
981: }
982: return $result;
983: }
984:
985: sub end_languageblock {
1.170 www 986: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
987: my $result;
1.201 albertel 988: if ($target eq "edit") {
1.170 www 989: $result.= &Apache::edit::tag_end($target,$token,'');
990: }
991: return $result;
992: }
993:
994: sub start_instructorcomment {
1.201 albertel 995: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 996:
997: my $result;
998:
999: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1000: $target eq 'tex' || $target eq 'analyze') {
1.284 albertel 1001: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1002: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1003: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1004: $parser,$style);
1.170 www 1005: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1006: }
1007: $result='';
1008: } elsif ($target eq 'edit') {
1009: $result .=&Apache::edit::tag_start($target,$token);
1010: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1011: }
1012: return $result;
1013: }
1014:
1015: sub end_instructorcomment {
1.159 albertel 1016: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1017: my $result;
1018: if ($target eq "edit") {
1019: $result.= &Apache::edit::tag_end($target,$token,'');
1020: }
1021: return $result;
1.4 tsai 1022: }
1023:
1024: sub start_while {
1.159 albertel 1025: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1026:
1.160 albertel 1027: my $result;
1.161 albertel 1028: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 1029: $target eq 'tex' || $target eq 'analyze') {
1030: my $code = $token->[2]->{'condition'};
1.4 tsai 1031:
1.160 albertel 1032: push( @Apache::structuretags::whileconds, $code);
1033: if (!$Apache::lonxml::default_homework_loaded) {
1034: &Apache::lonxml::default_homework_load($safeeval);
1035: }
1036: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 1037: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 1038: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1039: push( @Apache::structuretags::whileline, $token->[5]);
1040: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1041: if ( $result ) {
1042: &Apache::lonxml::newparser($parser,\$bodytext);
1043: }
1044: } elsif ($target eq 'edit') {
1045: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1046: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1047: $token,40);
1048: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1049: } elsif ($target eq 'modified') {
1050: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1051: $safeeval,'condition');
1052: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1053: }
1.160 albertel 1054: return $result;
1.4 tsai 1055: }
1056:
1057: sub end_while {
1.159 albertel 1058: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1059: my $result;
1060:
1061: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1062: $target eq 'tex' || $target eq 'analyze') {
1063: my $code = pop(@Apache::structuretags::whileconds);
1064: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1065: my $line = pop(@Apache::structuretags::whileline);
1066: my $return = &Apache::run::run($code,$safeeval);
1067: my $starttime=time;
1068: my $error=0;
1069: while ($return) {
1070: if (time-$starttime >
1071: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1072: #$return = 0; $error=1; next;
1.161 albertel 1073: }
1074: $result.=&Apache::scripttag::xmlparse($bodytext);
1075: $return = &Apache::run::run($code,$safeeval);
1076: }
1077: if ($error) {
1.270 albertel 1078: &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 1079: }
1080: } elsif ($target eq "edit") {
1081: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1082: }
1.160 albertel 1083: return $result;
1.1 albertel 1084: }
1.6 tsai 1085:
1.160 albertel 1086: # <randomlist show="1">
1.6 tsai 1087: # <tag1>..</tag1>
1088: # <tag2>..</tag2>
1089: # <tag3>..</tag3>
1.160 albertel 1090: # ...
1.6 tsai 1091: # </randomlist>
1092: sub start_randomlist {
1.159 albertel 1093: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1094: my $result;
1095: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1096: $target eq 'tex' || $target eq 'analyze') {
1097: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1098: my $b_parser= HTML::LCParser->new(\$body);
1099: $b_parser->xml_mode(1);
1100: $b_parser->marked_sections(1);
1.159 albertel 1101: my $b_tok;
1102: my @randomlist;
1103: my $list_item;
1104: while($b_tok = $b_parser->get_token() ) {
1105: if($b_tok->[0] eq 'S') { # start tag
1106: # get content of the tag until matching end tag
1107: # get all text upto the matching tag
1108: # and push the content into @randomlist
1109: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1110: $b_parser);
1111: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1112: push(@randomlist,$list_item);
1113: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1114: # $list_item</b>";
1115: }
1116: if($b_tok->[0] eq 'T') { # text
1117: # what to do with text in between tags?
1118: # print "<b>TEXT $b_tok->[1]</b><br />";
1119: }
1120: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1121: # print "<b>END-TAG $b_tok->[1]</b><br />";
1122: # }
1123: }
1.303 albertel 1124: if (@randomlist) {
1125: my @idx_arr = (0 .. $#randomlist);
1126: &Apache::structuretags::shuffle(\@idx_arr);
1127: my $bodytext = '';
1128: my $show=$#randomlist;
1129: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1130: $showarg--;
1131: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1132: for(0 .. $show) {
1133: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1134: }
1135: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1136: }
1137: } elsif ($target eq 'edit' ) {
1138: $result .=&Apache::edit::tag_start($target,$token);
1139: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1140: $token,5);
1141: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1142: } elsif ($target eq 'modified' ) {
1143: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1144: $safeeval,'show');
1145: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1146: }
1147: return $result;
1.7 tsai 1148: }
1149:
1150: sub shuffle {
1151: my $a=shift;
1152: my $i;
1.303 albertel 1153: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1154: &Apache::response::pushrandomnumber();
1.159 albertel 1155: for($i=@$a;--$i;) {
1156: my $j=int(&Math::Random::random_uniform() * ($i+1));
1157: next if $i == $j;
1158: @$a[$i,$j] = @$a[$j,$i];
1159: }
1.251 albertel 1160: &Apache::response::poprandomnumber();
1.7 tsai 1161: }
1.6 tsai 1162: }
1163:
1164: sub end_randomlist {
1.159 albertel 1165: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1166: my $result;
1167: if ($target eq 'edit' ) {
1168: $result=&Apache::edit::tag_end($target,$token,
1169: 'End Randomly Parsed Block');
1170: }
1171: return $result;
1.6 tsai 1172: }
1173:
1.283 albertel 1174: sub ordered_show_check {
1175: my $last_part=$Apache::inputtags::partlist[-2];
1176: my $in_order=
1177: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1178: my $in_order_show=1;
1179: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1180: $in_order_show=&Apache::response::check_status($last_part);
1181: }
1182: return $in_order_show;
1183: }
1184:
1.11 albertel 1185: sub start_part {
1.159 albertel 1186: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.312 albertel 1187: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1188: # duedates.
1.159 albertel 1189: my $result='';
1190: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1191: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1192: $Apache::inputtags::part=$id;
1.177 albertel 1193: push(@Apache::inputtags::partlist,$id);
1194: @Apache::inputtags::response=();
1.159 albertel 1195: @Apache::inputtags::previous=();
1196: @Apache::inputtags::previous_version=();
1.241 albertel 1197: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1198: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1199: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1200: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1201: my $in_order_show=&ordered_show_check();
1.214 albertel 1202: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1203: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1204: &Apache::run::run($expression,$safeeval);
1.159 albertel 1205:
1206: if ($target eq 'meta') {
1.224 www 1207: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1208: return &Apache::response::mandatory_part_meta.
1209: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1210: } elsif ($target eq 'web' || $target eq 'grade' ||
1211: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1212: if ($hidden || !$in_order_show) {
1.159 albertel 1213: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1214: } else {
1215: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1216: push (@Apache::inputtags::status,$status);
1217: my $expression='$external::datestatus="'.$status.'";';
1218: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1219: &Apache::run::run($expression,$safeeval);
1.284 albertel 1220: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1221: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1222: }
1.216 albertel 1223: if (( $status eq 'CLOSED' ) ||
1224: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1225: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1226: ( $status eq 'BANNED') ||
1227: ( $status eq 'UNAVAILABLE') ||
1228: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 1229: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1230: if ( $target eq "web" ) {
1.211 albertel 1231: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1232: } elsif ( $target eq 'tex' ) {
1.284 albertel 1233: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1234: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1235: } else {
1.211 albertel 1236: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1237: }
1.159 albertel 1238: }
1239: } else {
1240: if ($target eq 'tex') {
1.284 albertel 1241: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1242: if ($$tagstack[-2] eq 'td') {
1243: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1244: } else {
1245: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1246: }
1.195 sakharuk 1247: }
1.159 albertel 1248: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1249: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1250: my @allkeys = split /,/,$allkeys;
1251: my $allow_print_points = 0;
1252: foreach my $partial_key (@allkeys) {
1.230 albertel 1253: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1254: if ($1 ne '0') {$allow_print_points=1;}
1255: }
1256: }
1.275 albertel 1257: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1258: if (defined($maxtries) && $maxtries < 0) {
1259: $allow_print_points=0;
1260: }
1.302 albertel 1261: if (lc($env{'course.'.$env{'request.course.id'}.
1262: '.disableexampointprint'}) eq 'yes') {
1263: $allow_print_points=0;
1264: }
1.222 sakharuk 1265: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1266: } elsif ($target eq 'web') {
1267: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1268: }
1269: }
1270: }
1271: } elsif ($target eq 'edit') {
1272: $result.=&Apache::edit::tag_start($target,$token);
1273: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1274: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1275: ' '.
1276: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1277: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1278: } elsif ($target eq 'modified') {
1279: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1280: $safeeval,'id','display');
1.159 albertel 1281: if ($constructtag) {
1.225 albertel 1282: #limiting ids to only letters numbers, and space
1.224 www 1283: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1284: $result = &Apache::edit::rebuild_tag($token);
1285: $result.=&Apache::edit::handle_insert();
1286: }
1287: }
1288: return $result;
1.11 albertel 1289: }
1290:
1291: sub end_part {
1.159 albertel 1292: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1293: &Apache::lonxml::debug("in end_part $target ");
1294: my $status=$Apache::inputtags::status['-1'];
1295: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1296: my $in_order_show=&ordered_show_check();
1.312 albertel 1297: my $result= &Apache::lonxml::endredirection(); # started in &start_part
1298: if ($target eq 'grade') {
1.249 albertel 1299: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1300: !$hidden && $in_order_show) {
1.311 foxr 1301: $result.=&Apache::inputtags::grade;
1.249 albertel 1302: } else {
1303: # move any submission data to .hidden
1304: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1305: }
1.283 albertel 1306: } elsif (($target eq 'web' || $target eq 'tex') &&
1307: !$hidden && $in_order_show) {
1.159 albertel 1308: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1309: $target);
1.212 albertel 1310: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1311: $gradestatus='';
1312: }
1.311 foxr 1313: $result.=$gradestatus;
1.265 sakharuk 1314: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1315: } elsif ($target eq 'edit') {
1.311 foxr 1316: $result.=&Apache::edit::end_table();
1.159 albertel 1317: }
1318: pop @Apache::inputtags::status;
1319: $Apache::inputtags::part='';
1.295 albertel 1320: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1321: return $result;
1.11 albertel 1322: }
1.1 albertel 1323:
1.25 albertel 1324: sub start_preduedate {
1.159 albertel 1325: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1326: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1.236 albertel 1327: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1328: if (!$Apache::lonhomework::scantronmode &&
1329: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1330: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1331: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.159 albertel 1332: &Apache::lonxml::get_all_text("/preduedate",$parser);
1333: }
1.24 albertel 1334: }
1.159 albertel 1335: return '';
1.24 albertel 1336: }
1337:
1.25 albertel 1338: sub end_preduedate {
1.159 albertel 1339: return '';
1.24 albertel 1340: }
1341:
1.25 albertel 1342: sub start_postanswerdate {
1.159 albertel 1343: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.234 albertel 1344: if ($target eq 'web' || $target eq 'grade') {
1.300 albertel 1345: if ($Apache::lonhomework::scantronmode ||
1346: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.159 albertel 1347: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1348: }
1349: } elsif ($target eq 'tex') {
1.234 albertel 1350: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1.159 albertel 1351: }
1352: return '';
1.24 albertel 1353: }
1354:
1.25 albertel 1355: sub end_postanswerdate {
1.159 albertel 1356: return '';
1.24 albertel 1357: }
1358:
1.25 albertel 1359: sub start_notsolved {
1.159 albertel 1360: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1361: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1362: $target eq 'tex') {
1363: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1364: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1365: if ($gradestatus =~ /^correct/ &&
1366: &Apache::response::show_answer()) {
1.159 albertel 1367: &Apache::lonxml::debug("skipping");
1368: &Apache::lonxml::get_all_text("/notsolved",$parser);
1369: }
1.24 albertel 1370: }
1.159 albertel 1371: return '';
1.24 albertel 1372: }
1373:
1.25 albertel 1374: sub end_notsolved {
1.159 albertel 1375: return '';
1.24 albertel 1376: }
1377:
1378: sub start_solved {
1.159 albertel 1379: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1380: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1381: $target eq 'tex') {
1382: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1383: if ($gradestatus !~ /^correct/ ||
1384: !&Apache::response::show_answer()) {
1.159 albertel 1385: &Apache::lonxml::get_all_text("/solved",$parser);
1386: }
1.24 albertel 1387: }
1.159 albertel 1388: return '';
1.24 albertel 1389: }
1390:
1391: sub end_solved {
1.248 albertel 1392: return '';
1393: }
1394:
1395: sub start_problemtype {
1396: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1397: my $result;
1398: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1399: $target eq 'tex' || $target eq 'analyze') {
1400: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1401: if (!defined($mode)) { $mode='show'; }
1402: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1403: my $found=0;
1404: foreach my $type (split(',',$for)) {
1405: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1406: }
1407: if ($mode eq 'show' && !$found) {
1408: &Apache::lonxml::get_all_text("/problemtype",$parser);
1409: }
1410: if ($mode eq 'hide' && $found) {
1411: &Apache::lonxml::get_all_text("/problemtype",$parser);
1412: }
1413: } elsif ($target eq 'edit') {
1414: $result .=&Apache::edit::tag_start($target,$token);
1415: $result.=&Apache::edit::select_arg('Mode:','mode',
1416: [['show','Show'],
1417: ['hide','Hide']]
1418: ,$token);
1419: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1420: [ ['exam','Exam/Quiz Problem'],
1421: ['survey','Survey'],
1422: ['problem','Homework Problem'] ]
1423: ,$token);
1424: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1425: } elsif ($target eq 'modified') {
1426: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1427: $safeeval,'mode','for');
1428: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1429: }
1430: return $result;
1431: }
1432:
1433: sub end_problemtype {
1.159 albertel 1434: return '';
1.24 albertel 1435: }
1.34 albertel 1436:
1437: sub start_startouttext {
1.159 albertel 1438: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1439: my @result=(''.'');
1440: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1441: return (@result);
1.34 albertel 1442: }
1.159 albertel 1443:
1.34 albertel 1444: sub end_startouttext {
1.159 albertel 1445: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1446: my $result='';
1447: my $text='';
1448:
1449: if ($target eq 'edit') {
1450: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1.211 albertel 1451: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1452: <td>".&mt('Delete:').
1.159 albertel 1453: &Apache::edit::deletelist($target,$token)
1454: ."</td>
1.42 albertel 1455: <td>".
1.159 albertel 1456: &Apache::edit::insertlist($target,$token).
1457: &Apache::edit::end_row().
1458: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1459: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1460: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1461: }
1462: if ($target eq 'modified') {
1.219 albertel 1463: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1464: }
1465: if ($target eq 'tex') {
1466: $result .= '\noindent ';
1467: }
1468: return $result;
1.34 albertel 1469: }
1.159 albertel 1470:
1.34 albertel 1471: sub start_endouttext {
1.159 albertel 1472: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1473: my $result='';
1474: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1475: if ($target eq "modified") {
1476: $result='<endouttext />'.
1477: &Apache::edit::handle_insertafter('startouttext'); }
1478: return $result;
1.34 albertel 1479: }
1.159 albertel 1480:
1.34 albertel 1481: sub end_endouttext {
1.159 albertel 1482: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1483: my @result=('','');
1484: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1485: return (@result);
1.34 albertel 1486: }
1.159 albertel 1487:
1.45 albertel 1488: sub delete_startouttext {
1.159 albertel 1489: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1490: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1491: my $text=$$parser['-1']->get_text("/endouttext");
1492: my $ntoken=$$parser['-1']->get_token();
1493: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1494: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1495: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1496: # they did the last time round
1497: &Apache::lonxml::increasedepth($ntoken);
1498: &Apache::lonxml::decreasedepth($ntoken);
1499: return 1;
1.193 www 1500: }
1501:
1502: sub start_simpleeditbutton {
1503: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1504: my $result='';
1.284 albertel 1505: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1506: ($target eq 'web') &&
1.284 albertel 1507: (&Apache::lonnet::allowed('srm',$env{'request.course.id'}))) {
1508: my $url=$env{'request.noversionuri'};
1.193 www 1509: $url=~s/\?.*$//;
1.278 albertel 1510: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1511: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1512: '<a href="'.$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 1513: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1514: }
1515: return $result;
1516: }
1517:
1518: sub end_simpleeditbutton {
1519: return '';
1.45 albertel 1520: }
1.34 albertel 1521:
1.1 albertel 1522: 1;
1523: __END__
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