Annotation of loncom/homework/structuretags.pm, revision 1.312
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.312 ! albertel 4: # $Id: structuretags.pm,v 1.311 2005/11/03 12:20:54 foxr Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.133 sakharuk 30:
1.1 albertel 31: package Apache::structuretags;
32:
33: use strict;
34: use Apache::lonnet;
1.101 sakharuk 35: use Apache::File();
1.147 www 36: use Apache::lonmenu;
1.210 albertel 37: use Apache::lonlocal;
1.231 sakharuk 38: use Apache::lonxml;
1.267 albertel 39: use Time::HiRes qw( gettimeofday tv_interval );
1.78 harris41 40: BEGIN {
1.248 albertel 41: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));
1.10 albertel 42: }
43:
44: sub start_web {
1.159 albertel 45: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.200 albertel 46: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser);
47: if ($target eq 'web') {
48: return $bodytext;
1.159 albertel 49: }
50: return '';
1.10 albertel 51: }
52:
53: sub end_web {
1.44 ng 54: return '';
1.10 albertel 55: }
56:
57: sub start_tex {
1.159 albertel 58: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.198 sakharuk 59: my $result='';
1.200 albertel 60: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser);
61: if ($target eq 'tex') {
62: return $bodytext.' ';
1.159 albertel 63: }
1.198 sakharuk 64: return $result;;
1.10 albertel 65: }
66:
67: sub end_tex {
1.44 ng 68: return '';
1.9 albertel 69: }
70:
1.290 albertel 71: sub body_tag_start {
72: my ($target,$background,$bgcolor)=@_;
73: my $body_tag_start='<body onload="'.&Apache::lonmenu::loadevents().'" '.
74: 'onunload="'.&Apache::lonmenu::unloadevents().'" ';
75: if ($env{'browser.imagesuppress'} eq 'on') { $background=''; }
76: if ($background) {
1.306 albertel 77: &Apache::lonxml::extlink($background);
1.290 albertel 78: $body_tag_start.='background="'.$background.'" ';
79: } else {
80: if (($bgcolor) && ($env{'browser.blackwhite'} ne 'on')) {
81: $body_tag_start.='bgcolor="'.$bgcolor.'" ';
82: } else {
83: $body_tag_start.='bgcolor="#ffffff"';
84: }
85: }
86: if ($env{'browser.fontenhance'} eq 'on') {
87: $body_tag_start.=' style="font-size: x-large;" ';
88: }
89: $body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1);
1.297 albertel 90:
91: &Apache::lontexconvert::jsMath_reset();
1.290 albertel 92: if ($env{'environment.texengine'} eq 'jsMath') {
1.297 albertel 93: $body_tag_start.=&Apache::lontexconvert::jsMath_header();
1.290 albertel 94: }
95: return $body_tag_start;
96: }
1.291 albertel 97:
1.48 albertel 98: sub page_start {
1.159 albertel 99: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
100: my %found;
1.207 albertel 101: foreach my $taginside (@$tagstack) {
1.159 albertel 102: foreach my $taglookedfor ('html','body','form') {
103: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
104: }
105: }
106:
107: my $result;
108: my $head_tag_start;
109: if (!defined($found{'html'})) {
110: $result=&Apache::londefdef::start_html($target,$token,$tagstack,
111: $parstack,$parser,$safeeval);
1.254 www 112: $head_tag_start='<head>'.&Apache::lonmenu::registerurl(undef,$target).
1.261 www 113: &Apache::lonhtmlcommon::htmlareaheaders().
1.270 albertel 114: &Apache::lonhtmlcommon::spellheader().
115: &Apache::lonxml::fontsettings();
1.159 albertel 116: }
117: my $body_tag_start;
1.284 albertel 118: if (!defined($found{'body'}) && $env{'request.state'} eq 'construct'
119: && $env{'environment.remote'} eq 'off') {
1.298 albertel 120: if ($target eq 'web' || $target eq 'edit') {
1.297 albertel 121: $body_tag_start=&Apache::loncommon::bodytag();
122: $body_tag_start.=&Apache::lonxml::message_location();
123: }
1.272 albertel 124: } elsif (!defined($found{'body'})) {
1.159 albertel 125: my $background=&Apache::lonxml::get_param('background',$parstack,
126: $safeeval);
1.290 albertel 127: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
128: $safeeval);
1.299 albertel 129: $body_tag_start=&body_tag_start($target,$background,$bgcolor);
1.291 albertel 130: if ( ($target eq 'web' || $target eq 'webgrade')
131: && $env{'request.state'} ne 'construct') {
1.165 albertel 132: my ($symb,undef,undef,undef,$publicuser)=
133: &Apache::lonxml::whichuser();
134: if ($symb eq '' && !$publicuser) {
1.159 albertel 135: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
1.211 albertel 136: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
1.159 albertel 137: $body_tag_start.=$help;
138: }
139: }
1.245 albertel 140: $body_tag_start.=&Apache::lonxml::message_location();
1.159 albertel 141: }
142: my $form_tag_start;
143: if (!defined($found{'form'})) {
1.281 albertel 144: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="POST" action="';
1.284 albertel 145: my $uri=$env{'request.uri'};
146: if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
1.271 albertel 147: $form_tag_start.=$uri.'">';
1.159 albertel 148: }
149: return ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.105 albertel 150: }
151:
1.141 matthew 152: #use Time::HiRes();
1.105 albertel 153: sub get_resource_name {
1.159 albertel 154: my ($parstack,$safeeval)=@_;
1.204 albertel 155: if (defined($Apache::lonhomework::name)) {
156: return $Apache::lonhomework::name;
157: }
1.279 albertel 158: my ($symb)=&Apache::lonxml::whichuser();
159: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 160: if ($name eq '') {
161: $name=&Apache::lonnet::EXT('resource.title');
162: if ($name eq 'con_lost') { $name = ''; }
163: }
1.204 albertel 164: if ($name!~/\S+/) {
1.284 albertel 165: $name=$env{'request.uri'};
1.205 albertel 166: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 167: }
1.159 albertel 168: $Apache::lonhomework::name=$name;
169: return $name;
1.105 albertel 170: }
171:
172: sub setup_rndseed {
1.159 albertel 173: my ($safeeval)=@_;
174: my $rndseed;
1.162 albertel 175: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 176: if ($env{'request.state'} eq "construct" || $symb eq '' ||
1.247 albertel 177: $Apache::lonhomework::history{'resource.CODE'}) {
1.284 albertel 178: $rndseed=$env{'form.rndseed'};
1.159 albertel 179: if (!$rndseed) {
1.162 albertel 180: $rndseed=$Apache::lonhomework::history{'rndseed'};
181: if (!$rndseed) {
182: $rndseed=time;
183: }
1.284 albertel 184: $env{'form.rndseed'}=$rndseed;
1.162 albertel 185: }
1.284 albertel 186: if ($env{'form.resetdata'} eq &mt('New Problem Variation') ||
187: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 188: srand(time);
189: $rndseed=int(rand(2100000000));
1.284 albertel 190: $env{'form.rndseed'}=$rndseed;
191: delete($env{'form.resetdata'});
192: delete($env{'form.newrandomization'});
1.159 albertel 193: }
1.187 albertel 194: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 195: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 196: }
1.247 albertel 197: if ($Apache::lonhomework::history{'resource.CODE'}) {
198: $rndseed=&Apache::lonnet::rndseed();
199: }
1.221 albertel 200: if ($safeeval) {
201: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 202: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 203: }
1.159 albertel 204: }
205: return $rndseed;
1.105 albertel 206: }
207:
1.268 albertel 208: sub remember_problem_state {
209: return '
1.284 albertel 210: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
211: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
212: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 213: }
214:
1.105 albertel 215: sub problem_edit_header {
1.268 albertel 216: return '<input type="hidden" name="submitted" value="edit" />'.
217: &Apache::structuretags::remember_problem_state().'
1.210 albertel 218: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 219: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
220: <input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
221: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
222: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
223: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.260 albertel 224: &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
225: .'</td></tr></table>'.
1.282 albertel 226: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 227: }
228:
229: sub problem_edit_footer {
1.210 albertel 230: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 231: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
232: &Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).
1.280 albertel 233: "\n</form>\n".&Apache::loncommon::endbodytag()."\n</html>";
1.105 albertel 234: }
235:
1.235 albertel 236: sub option {
237: my ($value,$name) = @_;
238: my $result ="<option value='".$value."' ";
1.284 albertel 239: if ($env{'form.'.$name} eq $value) {
1.235 albertel 240: $result.=" selected='on' ";
241: }
242: $result.='>';
243: return $result;
244: }
245:
1.105 albertel 246: sub problem_web_to_edit_header {
1.159 albertel 247: my ($rndseed)=@_;
1.210 albertel 248: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />
1.243 matthew 249: <input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />
250: <input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
251: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
252: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 253: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 254: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 255: $rndseed.'"
1.270 albertel 256: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 257: <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 258: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.228 www 259: $result.= ' />'.&mt(' Show All Foils').
260: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.281 albertel 261: '</label><hr />';
1.235 albertel 262: $result.="
263: <nobr>
264: Problem Status:
265: <select name='problemstate'>
1.270 albertel 266: <option value=''></option>
1.235 albertel 267: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
268: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
269: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
270: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
271: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
272: </select>
273: </nobr>
274: <nobr>
275: Problem Type:
276: <select name='problemtype'>
1.270 albertel 277: <option value=''></option>
1.242 albertel 278: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
279: ".&option('problem','problemtype').&mt("Homework problem")."</option>
280: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 281: </select>
282: </nobr>
283: <nobr>
284: Feedback Mode:
285: <select name='problemstatus'>
286: <option value=''></option>
1.242 albertel 287: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
288: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 289: </select>
290: </nobr>
1.242 albertel 291: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 292: <hr />";
1.284 albertel 293: my $numtoanalyze=$env{'form.numtoanalyze'};
1.176 albertel 294: if (!$numtoanalyze) { $numtoanalyze=20; }
1.210 albertel 295: $result.= '<input type="submit" name="problemmode" value='.
296: &mt('"Calculate answers').'" /> for
1.136 albertel 297: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 298: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
299: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 300: '',undef,undef,300).
1.210 albertel 301: '<hr />';
1.159 albertel 302: return $result;
1.48 albertel 303: }
304:
1.65 albertel 305: sub initialize_storage {
1.159 albertel 306: %Apache::lonhomework::results=();
1.162 albertel 307: %Apache::lonhomework::history=();
1.159 albertel 308: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.284 albertel 309: if ($env{'request.state'} eq 'construct' || $symb eq '') {
1.159 albertel 310: %Apache::lonhomework::history=
1.284 albertel 311: &Apache::lonnet::tmprestore($env{'request.uri'},'',$domain,$name);
1.159 albertel 312: my ($temp)=keys %Apache::lonhomework::history ;
313: &Apache::lonxml::debug("Return message of $temp");
314: } else {
315: %Apache::lonhomework::history=
316: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
317: }
318: #ignore error conditions
1.67 albertel 319: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 320: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 321: }
322:
323: # -------------------------------------------------------------finalize_storage
324: # Stores away the result has to a student's environment
325: # checks form.grade_ for specific values, other wises stores
326: # to the running users environment
1.285 raeburn 327: # Will increment totals for attempts, students, and corrects
328: # if running user has student role.
1.65 albertel 329: sub finalize_storage {
1.159 albertel 330: my $result;
1.289 albertel 331: if (%Apache::lonhomework::results) {
1.159 albertel 332: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.284 albertel 333: if ($env{'request.state'} eq 'construct' || $symb eq '') {
334: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 335: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.284 albertel 336: $env{'request.uri'},'',$domain,$name);
1.159 albertel 337: &Apache::lonxml::debug('Construct Store return message:'.$result);
338: } else {
339: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
340: $symb,$courseid,$domain,$name);
341: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 342: if ($env{'request.role'} =~/^st/) {
343: &store_aggregates($symb,$courseid);
344: }
1.159 albertel 345: }
1.67 albertel 346: }
1.159 albertel 347: return $result;
1.65 albertel 348: }
1.289 albertel 349: use Data::Dumper;
1.65 albertel 350:
1.285 raeburn 351: # -------------------------------------------------------------store_aggregates
352: # Sends hash of values to be incremented in nohist_resourcetracker.db
353: # for the course. Increments total number of attempts, unique students
354: # and corrects for each part for an instance of a problem, as appropriate.
355: sub store_aggregates {
356: my ($symb,$courseid) = @_;
1.286 albertel 357: my %aggregate;
358: my @parts;
1.288 albertel 359: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
360: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 361: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 362: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 363: push(@parts, $1);
1.285 raeburn 364: }
365: }
1.286 albertel 366: foreach my $part (@parts) {
367: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
368: eq 'APPROX_ANS' ||
369: $Apache::lonhomework::results{'resource.'.$part.'.award'}
370: eq 'EXACT_ANS') {
1.287 albertel 371: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 372: }
1.286 albertel 373: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 374: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 375: } else {
1.293 albertel 376: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 377: if ($last_reset) {
1.293 albertel 378: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 379: $aggregate{$symb."\0".$part."\0users"} = 1;
380: }
381: }
1.285 raeburn 382: }
1.287 albertel 383: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 384: }
1.292 raeburn 385: if (keys (%aggregate) > 0) {
1.289 albertel 386: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 387: $cdomain,$cname);
388: }
389: }
1.289 albertel 390:
1.65 albertel 391: sub checkout_msg {
1.211 albertel 392: my %lt=&Apache::lonlocal::texthash(
393: 'resource'=>'The resource needs to be checked out',
394: '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.',
395: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
396: 'checkout'=>'Check out Exam for Viewing',
397: 'checkout?'=>'Check out Exam?');
1.159 albertel 398: return (<<ENDCHECKOUT);
1.211 albertel 399: <h2>$lt{'resource'}</h2>
400: <p>$lt{'id_expln'}</p>
401: <font color="red">
402: <p>$lt{'warning'}</p>
1.91 albertel 403: </font>
1.284 albertel 404: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.91 albertel 405: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 406: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 407: </form>
408: ENDCHECKOUT
409: }
410:
1.252 albertel 411: sub firstaccess_msg {
1.253 albertel 412: my ($time,$symb)=@_;
413: my ($map)=&Apache::lonnet::decode_symb($symb);
414: my $foldertitle=&Apache::lonnet::gettitle($map);
415: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.252 albertel 416: return (<<ENDCHECKOUT);
1.253 albertel 417: <h2>The resources in "$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 418: <form name="markaccess" method="POST" action="$env{'request.uri'}">
1.252 albertel 419: <input type="hidden" name="markaccess" value="yes" />
420: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
421: </form>
422: ENDCHECKOUT
423: }
424:
1.204 albertel 425: sub init_problem_globals {
426: my ($type)=@_;
427: #initialize globals
1.308 foxr 428: # For problems, we start out in part 0 (outside a <part> tag).
429: # and part 0 is used to describe the main body of the <problem>
430: #
1.204 albertel 431: if ($type eq 'problem') {
432: $Apache::inputtags::part='0';
433: @Apache::inputtags::partlist=('0');
1.266 albertel 434: $Apache::lonhomework::problemstatus=&get_problem_status('0');
435: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 436:
1.266 albertel 437: } elsif ($type eq 'library') {
1.204 albertel 438: $Apache::inputtags::part='';
439: @Apache::inputtags::partlist=();
440: $Apache::lonhomework::problemstatus='';
1.266 albertel 441: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 442:
1.304 albertel 443: } elsif ($type eq 'Task') {
444: $Apache::inputtags::part='0';
445: @Apache::inputtags::partlist=('0');
446: $Apache::lonhomework::problemstatus='';
447: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 448: }
449: @Apache::inputtags::responselist = ();
450: @Apache::inputtags::importlist = ();
451: @Apache::inputtags::previous=();
452: @Apache::inputtags::previous_version=();
453: $Apache::structuretags::printanswer='No';
454: @Apache::structuretags::whileconds=();
455: @Apache::structuretags::whilebody=();
456: @Apache::structuretags::whileline=();
457: $Apache::lonhomework::scantronmode=0;
458: undef($Apache::lonhomework::name);
459:
460: }
461:
462: sub reset_problem_globals {
463: my ($type)=@_;
464: undef(%Apache::lonhomework::history);
465: undef(%Apache::lonhomework::results);
466: undef($Apache::inputtags::part);
1.208 albertel 467: #don't undef this, lonhomework.pm takes care of this, we use this to
468: #detect if we try to do 2 problems in one file
469: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 470: undef($Apache::lonhomework::name);
471: }
472:
1.241 albertel 473: sub set_problem_state {
1.240 albertel 474: my ($part)=@_;
1.284 albertel 475: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 476: $Apache::lonhomework::history{"resource.$part.solved"}=
477: 'correct_by_student';
478: }
479: }
480:
1.241 albertel 481: sub get_problem_status {
482: my ($part)=@_;
1.267 albertel 483: my $problem_status;
1.284 albertel 484: if ($env{'request.state'} eq 'construct' &&
485: defined($env{'form.problemstatus'})) {
486: $problem_status=$env{'form.problemstatus'};
1.267 albertel 487: } else {
488: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
489: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 490: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 491: }
492: return $problem_status;
493: }
494:
1.9 albertel 495: sub start_problem {
1.159 albertel 496: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 497:
1.311 foxr 498: # We'll use the redirection to fix up printing of duedates.
1.312 ! albertel 499: &Apache::lonxml::startredirection();
1.311 foxr 500:
1.308 foxr 501: # Problems don't nest and we don't allow more than one <problem> in
502: # a .problem file.
503: #
1.184 albertel 504: if ( $Apache::inputtags::part ne '' ||
505: $Apache::lonhomework::parsing_a_problem) {
506: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
507: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
1.159 albertel 508: return '';
509: }
1.184 albertel 510:
511: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 512: &init_problem_globals('problem');
1.166 albertel 513:
1.284 albertel 514: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 515: $Apache::lonhomework::scantronmode=1;
516: }
1.161 albertel 517:
1.246 albertel 518: &initialize_storage();
1.159 albertel 519: if ($target ne 'analyze') {
520: if ($target eq 'web') {
521: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 522: }
1.284 albertel 523: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 524: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 525: if (($env{'request.state'} eq 'construct') &&
526: defined($env{'form.problemtype'})) {
527: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 528: }
1.240 albertel 529: &Apache::lonxml::debug("Found this to be of type :$Apache::ltonhomework::type:");
1.159 albertel 530: }
1.164 albertel 531: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 532: my $uri=$env{'request.uri'};
1.159 albertel 533: if ($uri=~/\.(\w+)$/) {
534: $Apache::lonhomework::type=$1;
535: &Apache::lonxml::debug("Using type of $1");
536: } else {
537: $Apache::lonhomework::type='problem';
538: &Apache::lonxml::debug("Using default type, problem, :$uri:");
539: }
1.87 albertel 540: }
1.301 albertel 541: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 542:
1.159 albertel 543: #added vars to the scripting enviroment
1.213 albertel 544: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 545: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 546: &Apache::run::run($expression,$safeeval);
1.159 albertel 547: my $status;
548: my $accessmsg;
549:
550: #should get back a <html> or the neccesary stuff to start XML/MathML
551: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
552: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.284 albertel 553: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 554:
555: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
556: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
557: $target eq 'tex') {
558: #handle exam checkout
559: if ($Apache::lonhomework::type eq 'exam') {
560: my $token=
561: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 562: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 563: $token=&Apache::lonxml::maketoken();
564: $Apache::lonhomework::history{"resource.0.outtoken"}=
565: $token;
566: }
567: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 568: }
1.284 albertel 569: if ($env{'form.markaccess'}) {
1.252 albertel 570: &Apache::lonnet::set_first_access('map');
571: }
1.159 albertel 572: #handle rand seed in construction space
573: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 574: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 575: if ($env{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 576: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
577: $rndseed.'" />'.
578: '<input type="submit" name="resetdata"
1.211 albertel 579: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 580: '<input type="hidden" name="username"
1.284 albertel 581: value="'.$env{'form.username'}.'" />';
582: if ($env{'user.adv'}) {
1.267 albertel 583: $form_tag_start.=
1.300 albertel 584: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 585: if (defined($env{'form.showallfoils'})) {
1.267 albertel 586: $form_tag_start.='checked="on"';
587: }
1.300 albertel 588: $form_tag_start.= ' />'.&mt(' Show All Foils').
589: '</label>';
1.267 albertel 590: }
591: $form_tag_start.='<hr />';
1.162 albertel 592: }
1.159 albertel 593: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
594: push (@Apache::inputtags::status,$status);
595: my $expression='$external::datestatus="'.$status.'";';
596: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
597: &Apache::run::run($expression,$safeeval);
598: &Apache::lonxml::debug("Got $status");
599: if (( $status eq 'CLOSED' ) ||
600: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 601: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 602: ( $status eq 'BANNED') ||
1.216 albertel 603: ( $status eq 'UNAVAILABLE') ||
604: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 605: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
606: if ( $target eq "web" ) {
607: $result.= $head_tag_start.'</head>';
608: my $msg=$body_tag_start;
609: if ($status eq 'UNAVAILABLE') {
1.245 albertel 610: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 611: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 612: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 613: }
1.216 albertel 614: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 615: $msg.='The problem '.$accessmsg;
616: } elsif ($status eq 'UNCHECKEDOUT') {
617: $msg.=&checkout_msg;
1.252 albertel 618: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 619: $msg.=&firstaccess_msg($accessmsg,$symb);
1.159 albertel 620: }
621: $result.=$msg.'<br />';
622: } elsif ($target eq 'tex') {
623: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
624: if ($status eq 'UNAVAILABLE') {
1.211 albertel 625: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 626: } else {
1.211 albertel 627: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 628: }
629: }
630: } elsif ($target eq 'web') {
631: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 632: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 633: $body_tag_start \n $form_tag_start".
1.227 albertel 634: '<input type="hidden" name="submitted" value="yes" />';
635: # create a page header and exit
1.284 albertel 636: if ($env{'request.state'} eq "construct") {
637: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 638: }
639: # if we are viewing someone else preserve that info
1.284 albertel 640: if (defined $env{'form.grade_symb'}) {
1.227 albertel 641: foreach my $field ('symb','courseid','domain','username') {
642: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 643: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 644: }
645: }
646: } elsif ($target eq 'tex') {
1.192 sakharuk 647: my $startminipage = '';
1.284 albertel 648: if (not $env{'form.problem_split'}=~/yes/) {
1.192 sakharuk 649: $startminipage = '\begin{minipage}{\textwidth}';
1.178 sakharuk 650: }
1.159 albertel 651: my $id = $Apache::inputtags::part;
652: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 653: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.223 sakharuk 654: my @packages = split /,/,$packages;
655: my $allow_print_points = 0;
656: foreach my $partial_key (@packages) {
1.230 albertel 657: if ($partial_key=~m/^part_0$/) {
1.223 sakharuk 658: $allow_print_points=1;
1.159 albertel 659: }
660: }
1.276 albertel 661: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
662: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1.302 albertel 663: if (lc($env{'course.'.$env{'request.course.id'}.
664: '.disableexampointprint'}) eq 'yes') {
665: $allow_print_points=0;
666: }
1.308 foxr 667: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
668: 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 ';
669: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
670: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
671:
1.312 ! albertel 672: # Figure out what the due date is and if we need to print
! 673: # it in the problem header. We have been logging the
! 674: # last due date written to file.
1.308 foxr 675:
676: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
677: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.159 albertel 678: my $temp_file;
1.284 albertel 679: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1.308 foxr 680:
1.312 ! albertel 681: # Figure out what the last printed due date is or set it
! 682: # to the epoch if no duedates have been printed.
1.308 foxr 683:
684: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1.159 albertel 685: if (-e $filename) {
686: $temp_file = Apache::File->new($filename);
1.308 foxr 687: my @due_file = <$temp_file>;
688: $due_file_content = $due_file[$#due_file];
689: chomp $due_file_content;
690: }
1.312 ! albertel 691:
! 692: # comparisons of the absolute times
1.309 foxr 693: if ($due_file_content != $duetime) {
1.159 albertel 694: $temp_file = Apache::File->new('>'.$filename);
1.308 foxr 695: print $temp_file "$duetime\n";
1.284 albertel 696: if (not $env{'request.symb'} =~ m/\.page_/) {
1.159 albertel 697: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1.304 albertel 698: $result .= $begin_doc.
699: '\textit{Due date: '.$duedate.'} '.$toc_line;
1.159 albertel 700: } else {
1.304 albertel 701: $result .= $begin_doc.$toc_line;
1.159 albertel 702: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
703: }
1.104 sakharuk 704: } else {
1.159 albertel 705: $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
1.104 sakharuk 706: }
1.101 sakharuk 707: } else {
1.284 albertel 708: if (not $env{'request.symb'} =~ m/\.page_/) {
1.304 albertel 709: $result .= $begin_doc.$toc_line;
1.159 albertel 710: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
711: } else {
712: $result .= '\vskip 1mm \\\\\\\\';
713: }
714: }
1.99 sakharuk 715: }
1.159 albertel 716: } elsif ($target eq 'edit') {
717: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
718: &problem_edit_header();
1.226 albertel 719: $Apache::lonxml::warnings_error_header=
720: &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 721: my $temp=&Apache::edit::insertlist($target,$token);
722: $result.=$temp;
723: } elsif ($target eq 'modified') {
724: $result=$token->[4];
725: $result.=&Apache::edit::handle_insert();
726: } else {
727: # page_start returned a starting result, delete it if we don't need it
728: $result = '';
1.99 sakharuk 729: }
1.159 albertel 730: return $result;
1.9 albertel 731: }
732:
733: sub end_problem {
1.159 albertel 734: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.312 ! albertel 735: my $result= &Apache::lonxml::endredirection(); # started in &start_problem
1.310 foxr 736:
1.159 albertel 737: my $status=$Apache::inputtags::status['-1'];
738: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
739: $target eq 'tex') {
1.249 albertel 740: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 741: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 742: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
743: &Apache::inputtags::grade;
744: } else {
745: # move any submission data to .hidden
746: &Apache::inputtags::hidealldata($Apache::inputtags::part);
747: }
1.159 albertel 748: } elsif ( ($target eq 'web' || $target eq 'tex') &&
749: $Apache::inputtags::part eq '0' &&
1.252 albertel 750: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 751: # if part is zero, no <part>s existed, so we need show the current
752: # grading status
753: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
754: $result.= $gradestatus;
755: }
756: if (
1.284 albertel 757: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 758: ($target eq 'answer') || ($target eq 'tex')
759: ) {
1.227 albertel 760: if ($target ne 'tex' &&
1.284 albertel 761: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 762: $result.="</form>";
763: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
1.159 albertel 764: }
765: if ($target eq 'web') {
1.281 albertel 766: $result.=&Apache::lonxml::xmlend().'</html>';
1.159 albertel 767: } elsif ($target eq 'tex') {
1.178 sakharuk 768: my $endminipage = '';
1.284 albertel 769: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 770: $endminipage = '\end{minipage}';
771: }
1.284 albertel 772: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 773: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 774: $result=~s/<\/html>//;
1.159 albertel 775: } else {
1.262 sakharuk 776: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 777: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 778: $result .= $endminipage.'\end{document} ';
779: } else {
780: $result .= '';
781: }
1.159 albertel 782: }
783: }
784: }
785: if ($target eq 'grade') {
786: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
787: &finalize_storage();
788: }
1.284 albertel 789: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
790: && $env{'form.answer_output_mode'} ne 'tex') {
1.294 albertel 791: $result.=&Apache::lonxml::xmlend().'</html>';
792: # normally we get it from above, but in CSTR
1.172 albertel 793: # we always show answer mode too.
1.159 albertel 794: }
795: } elsif ($target eq 'meta') {
796: if ($Apache::inputtags::part eq '0') {
1.179 albertel 797: @Apache::inputtags::response=();
1.159 albertel 798: $result=&Apache::response::mandatory_part_meta;
799: }
1.215 albertel 800: $result.=&Apache::response::meta_part_order();
1.258 albertel 801: $result.=&Apache::response::meta_response_order();
1.159 albertel 802: } elsif ($target eq 'edit') {
803: &Apache::lonxml::debug("in end_problem with $target, edit");
804: $result = &problem_edit_footer();
805: }
1.155 albertel 806:
1.284 albertel 807: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 808: &Apache::inputtags::check_for_duplicate_ids();
809: }
1.204 albertel 810:
811: &reset_problem_globals('problem');
1.159 albertel 812:
813: return $result;
1.48 albertel 814: }
815:
1.108 albertel 816:
1.48 albertel 817: sub start_library {
1.159 albertel 818: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
819: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 820: if ($$tagstack[0] eq 'library') {
821: &init_problem_globals('library');
822: $Apache::lonhomework::type='problem';
823: }
1.159 albertel 824: if ($target eq 'edit') {
825: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
826: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
827: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
828: &problem_edit_header();
829: my $temp=&Apache::edit::insertlist($target,$token);
830: $result.=$temp;
831: } elsif ($target eq 'modified') {
832: $result=$token->[4];
833: $result.=&Apache::edit::handle_insert();
834: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 835: $env{'request.state'} eq "construct" ) {
1.159 albertel 836: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
837: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
838: my $name=&get_resource_name($parstack,$safeeval);
839: my $rndseed=&setup_rndseed($safeeval);
840: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 841: $body_tag_start \n $form_tag_start".
1.159 albertel 842: '<input type="hidden" name="submitted" value="yes" />';
843: $result.=&problem_web_to_edit_header($rndseed);
844: }
845: return $result;
1.48 albertel 846: }
847:
848: sub end_library {
1.159 albertel 849: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
850: my $result='';
851: if ($target eq 'edit') {
852: $result=&problem_edit_footer();
853: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 854: $env{'request.state'} eq "construct") {
1.280 albertel 855: $result.='</form>'.&Apache::loncommon::endbodytag().
856: &Apache::lonxml::xmlend();
1.159 albertel 857: }
1.204 albertel 858: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 859: return $result;
1.197 www 860: }
861:
862: sub start_definetag {
863: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
864:
865: my $result;
866:
867: my $name = $token->[2]->{'name'};
868: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
869: if ($name=~/^\//) {
870: $result=
871: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
872: } else {
873: $result=
874: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
875: }
876: $skip=~s/\</\<\;/gs;
877: $skip=~s/\>/\>\;/gs;
878: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
879: return $result;
880: }
881:
882: sub end_definetag {
883: return '';
1.1 albertel 884: }
885:
886: sub start_block {
1.201 albertel 887: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 888:
889: my $result;
1.1 albertel 890:
1.160 albertel 891: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 892: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 893: my $code = $token->[2]->{'condition'};
1.201 albertel 894: if (defined($code)) {
1.137 albertel 895: if (!$Apache::lonxml::default_homework_loaded) {
896: &Apache::lonxml::default_homework_load($safeeval);
897: }
1.131 albertel 898: $result = &Apache::run::run($code,$safeeval);
899: &Apache::lonxml::debug("block :$code: returned :$result:");
900: } else {
901: $result='1';
902: }
903: if ( ! $result ) {
1.201 albertel 904: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 905: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
906: }
907: $result='';
908: } elsif ($target eq 'edit') {
909: $result .=&Apache::edit::tag_start($target,$token);
910: $result .=&Apache::edit::text_arg('Test Condition:','condition',
911: $token,40);
912: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
913: } elsif ($target eq 'modified') {
914: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
915: $safeeval,'condition');
916: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 917: }
1.131 albertel 918: return $result;
1.1 albertel 919: }
920:
921: sub end_block {
1.167 www 922: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
923: my $result;
924: if ($target eq "edit") {
925: $result.= &Apache::edit::tag_end($target,$token,'');
926: }
927: return $result;
928: }
929:
930: sub start_languageblock {
1.201 albertel 931: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 932:
933: my $result;
934:
935: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
936: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 937: my $include = $token->[2]->{'include'};
938: my $exclude = $token->[2]->{'exclude'};
939: my %languages=&Apache::loncommon::display_languages();
940: $result='1';
941: if ($include) {
942: $result='';
943: foreach (split(/\,/,$include)) {
944: if ($languages{$_}) { $result='1'; }
945: }
946: }
947: if ($exclude) {
948: foreach (split(/\,/,$exclude)) {
949: if ($languages{$_}) { $result='0'; }
950: }
951: }
952: if ( ! $result ) {
953: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
954: $style);
955: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
956: }
957: $result='';
1.167 www 958: } elsif ($target eq 'edit') {
959: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 960: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 961: $token,40);
1.211 albertel 962: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 963: $token,40);
964: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
965: } elsif ($target eq 'modified') {
966: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 967: $safeeval,'include',
968: 'exclude');
1.167 www 969: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
970: }
971: return $result;
972: }
973:
974: sub end_languageblock {
1.170 www 975: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
976: my $result;
1.201 albertel 977: if ($target eq "edit") {
1.170 www 978: $result.= &Apache::edit::tag_end($target,$token,'');
979: }
980: return $result;
981: }
982:
983: sub start_instructorcomment {
1.201 albertel 984: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 985:
986: my $result;
987:
988: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
989: $target eq 'tex' || $target eq 'analyze') {
1.284 albertel 990: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
991: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 992: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
993: $parser,$style);
1.170 www 994: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
995: }
996: $result='';
997: } elsif ($target eq 'edit') {
998: $result .=&Apache::edit::tag_start($target,$token);
999: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1000: }
1001: return $result;
1002: }
1003:
1004: sub end_instructorcomment {
1.159 albertel 1005: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1006: my $result;
1007: if ($target eq "edit") {
1008: $result.= &Apache::edit::tag_end($target,$token,'');
1009: }
1010: return $result;
1.4 tsai 1011: }
1012:
1013: sub start_while {
1.159 albertel 1014: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1015:
1.160 albertel 1016: my $result;
1.161 albertel 1017: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 1018: $target eq 'tex' || $target eq 'analyze') {
1019: my $code = $token->[2]->{'condition'};
1.4 tsai 1020:
1.160 albertel 1021: push( @Apache::structuretags::whileconds, $code);
1022: if (!$Apache::lonxml::default_homework_loaded) {
1023: &Apache::lonxml::default_homework_load($safeeval);
1024: }
1025: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 1026: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 1027: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1028: push( @Apache::structuretags::whileline, $token->[5]);
1029: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1030: if ( $result ) {
1031: &Apache::lonxml::newparser($parser,\$bodytext);
1032: }
1033: } elsif ($target eq 'edit') {
1034: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1035: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1036: $token,40);
1037: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1038: } elsif ($target eq 'modified') {
1039: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1040: $safeeval,'condition');
1041: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1042: }
1.160 albertel 1043: return $result;
1.4 tsai 1044: }
1045:
1046: sub end_while {
1.159 albertel 1047: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1048: my $result;
1049:
1050: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1051: $target eq 'tex' || $target eq 'analyze') {
1052: my $code = pop(@Apache::structuretags::whileconds);
1053: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1054: my $line = pop(@Apache::structuretags::whileline);
1055: my $return = &Apache::run::run($code,$safeeval);
1056: my $starttime=time;
1057: my $error=0;
1058: while ($return) {
1059: if (time-$starttime >
1060: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1061: #$return = 0; $error=1; next;
1.161 albertel 1062: }
1063: $result.=&Apache::scripttag::xmlparse($bodytext);
1064: $return = &Apache::run::run($code,$safeeval);
1065: }
1066: if ($error) {
1.270 albertel 1067: &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 1068: }
1069: } elsif ($target eq "edit") {
1070: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1071: }
1.160 albertel 1072: return $result;
1.1 albertel 1073: }
1.6 tsai 1074:
1.160 albertel 1075: # <randomlist show="1">
1.6 tsai 1076: # <tag1>..</tag1>
1077: # <tag2>..</tag2>
1078: # <tag3>..</tag3>
1.160 albertel 1079: # ...
1.6 tsai 1080: # </randomlist>
1081: sub start_randomlist {
1.159 albertel 1082: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1083: my $result;
1084: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1085: $target eq 'tex' || $target eq 'analyze') {
1086: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1087: my $b_parser= HTML::LCParser->new(\$body);
1088: $b_parser->xml_mode(1);
1089: $b_parser->marked_sections(1);
1.159 albertel 1090: my $b_tok;
1091: my @randomlist;
1092: my $list_item;
1093: while($b_tok = $b_parser->get_token() ) {
1094: if($b_tok->[0] eq 'S') { # start tag
1095: # get content of the tag until matching end tag
1096: # get all text upto the matching tag
1097: # and push the content into @randomlist
1098: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1099: $b_parser);
1100: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1101: push(@randomlist,$list_item);
1102: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1103: # $list_item</b>";
1104: }
1105: if($b_tok->[0] eq 'T') { # text
1106: # what to do with text in between tags?
1107: # print "<b>TEXT $b_tok->[1]</b><br />";
1108: }
1109: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1110: # print "<b>END-TAG $b_tok->[1]</b><br />";
1111: # }
1112: }
1.303 albertel 1113: if (@randomlist) {
1114: my @idx_arr = (0 .. $#randomlist);
1115: &Apache::structuretags::shuffle(\@idx_arr);
1116: my $bodytext = '';
1117: my $show=$#randomlist;
1118: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1119: $showarg--;
1120: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1121: for(0 .. $show) {
1122: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1123: }
1124: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1125: }
1126: } elsif ($target eq 'edit' ) {
1127: $result .=&Apache::edit::tag_start($target,$token);
1128: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1129: $token,5);
1130: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1131: } elsif ($target eq 'modified' ) {
1132: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1133: $safeeval,'show');
1134: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1135: }
1136: return $result;
1.7 tsai 1137: }
1138:
1139: sub shuffle {
1140: my $a=shift;
1141: my $i;
1.303 albertel 1142: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1143: &Apache::response::pushrandomnumber();
1.159 albertel 1144: for($i=@$a;--$i;) {
1145: my $j=int(&Math::Random::random_uniform() * ($i+1));
1146: next if $i == $j;
1147: @$a[$i,$j] = @$a[$j,$i];
1148: }
1.251 albertel 1149: &Apache::response::poprandomnumber();
1.7 tsai 1150: }
1.6 tsai 1151: }
1152:
1153: sub end_randomlist {
1.159 albertel 1154: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1155: my $result;
1156: if ($target eq 'edit' ) {
1157: $result=&Apache::edit::tag_end($target,$token,
1158: 'End Randomly Parsed Block');
1159: }
1160: return $result;
1.6 tsai 1161: }
1162:
1.283 albertel 1163: sub ordered_show_check {
1164: my $last_part=$Apache::inputtags::partlist[-2];
1165: my $in_order=
1166: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1167: my $in_order_show=1;
1168: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1169: $in_order_show=&Apache::response::check_status($last_part);
1170: }
1171: return $in_order_show;
1172: }
1173:
1.11 albertel 1174: sub start_part {
1.159 albertel 1175: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.312 ! albertel 1176: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
! 1177: # duedates.
1.159 albertel 1178: my $result='';
1179: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1180: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1181: $Apache::inputtags::part=$id;
1.177 albertel 1182: push(@Apache::inputtags::partlist,$id);
1183: @Apache::inputtags::response=();
1.159 albertel 1184: @Apache::inputtags::previous=();
1185: @Apache::inputtags::previous_version=();
1.241 albertel 1186: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1187: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1188: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1189: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1190: my $in_order_show=&ordered_show_check();
1.214 albertel 1191: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1192: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1193: &Apache::run::run($expression,$safeeval);
1.159 albertel 1194:
1195: if ($target eq 'meta') {
1.224 www 1196: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1197: return &Apache::response::mandatory_part_meta.
1198: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1199: } elsif ($target eq 'web' || $target eq 'grade' ||
1200: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1201: if ($hidden || !$in_order_show) {
1.159 albertel 1202: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1203: } else {
1204: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1205: push (@Apache::inputtags::status,$status);
1206: my $expression='$external::datestatus="'.$status.'";';
1207: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1208: &Apache::run::run($expression,$safeeval);
1.284 albertel 1209: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1210: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1211: }
1.216 albertel 1212: if (( $status eq 'CLOSED' ) ||
1213: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1214: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1215: ( $status eq 'BANNED') ||
1216: ( $status eq 'UNAVAILABLE') ||
1217: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 1218: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1219: if ( $target eq "web" ) {
1.211 albertel 1220: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1221: } elsif ( $target eq 'tex' ) {
1.284 albertel 1222: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1223: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1224: } else {
1.211 albertel 1225: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1226: }
1.159 albertel 1227: }
1228: } else {
1229: if ($target eq 'tex') {
1.284 albertel 1230: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1231: if ($$tagstack[-2] eq 'td') {
1232: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1233: } else {
1234: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1235: }
1.195 sakharuk 1236: }
1.159 albertel 1237: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1238: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1239: my @allkeys = split /,/,$allkeys;
1240: my $allow_print_points = 0;
1241: foreach my $partial_key (@allkeys) {
1.230 albertel 1242: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1243: if ($1 ne '0') {$allow_print_points=1;}
1244: }
1245: }
1.275 albertel 1246: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1247: if (defined($maxtries) && $maxtries < 0) {
1248: $allow_print_points=0;
1249: }
1.302 albertel 1250: if (lc($env{'course.'.$env{'request.course.id'}.
1251: '.disableexampointprint'}) eq 'yes') {
1252: $allow_print_points=0;
1253: }
1.222 sakharuk 1254: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1255: } elsif ($target eq 'web') {
1256: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1257: }
1258: }
1259: }
1260: } elsif ($target eq 'edit') {
1261: $result.=&Apache::edit::tag_start($target,$token);
1262: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1263: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1264: ' '.
1265: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1266: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1267: } elsif ($target eq 'modified') {
1268: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1269: $safeeval,'id','display');
1.159 albertel 1270: if ($constructtag) {
1.225 albertel 1271: #limiting ids to only letters numbers, and space
1.224 www 1272: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1273: $result = &Apache::edit::rebuild_tag($token);
1274: $result.=&Apache::edit::handle_insert();
1275: }
1276: }
1277: return $result;
1.11 albertel 1278: }
1279:
1280: sub end_part {
1.159 albertel 1281: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1282: &Apache::lonxml::debug("in end_part $target ");
1283: my $status=$Apache::inputtags::status['-1'];
1284: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1285: my $in_order_show=&ordered_show_check();
1.312 ! albertel 1286: my $result= &Apache::lonxml::endredirection(); # started in &start_part
! 1287: if ($target eq 'grade') {
1.249 albertel 1288: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1289: !$hidden && $in_order_show) {
1.311 foxr 1290: $result.=&Apache::inputtags::grade;
1.249 albertel 1291: } else {
1292: # move any submission data to .hidden
1293: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1294: }
1.283 albertel 1295: } elsif (($target eq 'web' || $target eq 'tex') &&
1296: !$hidden && $in_order_show) {
1.159 albertel 1297: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1298: $target);
1.212 albertel 1299: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1300: $gradestatus='';
1301: }
1.311 foxr 1302: $result.=$gradestatus;
1.265 sakharuk 1303: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1304: } elsif ($target eq 'edit') {
1.311 foxr 1305: $result.=&Apache::edit::end_table();
1.159 albertel 1306: }
1307: pop @Apache::inputtags::status;
1308: $Apache::inputtags::part='';
1.295 albertel 1309: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1310: return $result;
1.11 albertel 1311: }
1.1 albertel 1312:
1.25 albertel 1313: sub start_preduedate {
1.159 albertel 1314: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1315: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1.236 albertel 1316: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1317: if (!$Apache::lonhomework::scantronmode &&
1318: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1319: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1320: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.159 albertel 1321: &Apache::lonxml::get_all_text("/preduedate",$parser);
1322: }
1.24 albertel 1323: }
1.159 albertel 1324: return '';
1.24 albertel 1325: }
1326:
1.25 albertel 1327: sub end_preduedate {
1.159 albertel 1328: return '';
1.24 albertel 1329: }
1330:
1.25 albertel 1331: sub start_postanswerdate {
1.159 albertel 1332: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.234 albertel 1333: if ($target eq 'web' || $target eq 'grade') {
1.300 albertel 1334: if ($Apache::lonhomework::scantronmode ||
1335: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.159 albertel 1336: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1337: }
1338: } elsif ($target eq 'tex') {
1.234 albertel 1339: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1.159 albertel 1340: }
1341: return '';
1.24 albertel 1342: }
1343:
1.25 albertel 1344: sub end_postanswerdate {
1.159 albertel 1345: return '';
1.24 albertel 1346: }
1347:
1.25 albertel 1348: sub start_notsolved {
1.159 albertel 1349: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1350: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1351: $target eq 'tex') {
1352: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1353: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1354: if ($gradestatus =~ /^correct/ &&
1355: &Apache::response::show_answer()) {
1.159 albertel 1356: &Apache::lonxml::debug("skipping");
1357: &Apache::lonxml::get_all_text("/notsolved",$parser);
1358: }
1.24 albertel 1359: }
1.159 albertel 1360: return '';
1.24 albertel 1361: }
1362:
1.25 albertel 1363: sub end_notsolved {
1.159 albertel 1364: return '';
1.24 albertel 1365: }
1366:
1367: sub start_solved {
1.159 albertel 1368: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1369: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1370: $target eq 'tex') {
1371: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1372: if ($gradestatus !~ /^correct/ ||
1373: !&Apache::response::show_answer()) {
1.159 albertel 1374: &Apache::lonxml::get_all_text("/solved",$parser);
1375: }
1.24 albertel 1376: }
1.159 albertel 1377: return '';
1.24 albertel 1378: }
1379:
1380: sub end_solved {
1.248 albertel 1381: return '';
1382: }
1383:
1384: sub start_problemtype {
1385: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1386: my $result;
1387: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1388: $target eq 'tex' || $target eq 'analyze') {
1389: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1390: if (!defined($mode)) { $mode='show'; }
1391: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1392: my $found=0;
1393: foreach my $type (split(',',$for)) {
1394: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1395: }
1396: if ($mode eq 'show' && !$found) {
1397: &Apache::lonxml::get_all_text("/problemtype",$parser);
1398: }
1399: if ($mode eq 'hide' && $found) {
1400: &Apache::lonxml::get_all_text("/problemtype",$parser);
1401: }
1402: } elsif ($target eq 'edit') {
1403: $result .=&Apache::edit::tag_start($target,$token);
1404: $result.=&Apache::edit::select_arg('Mode:','mode',
1405: [['show','Show'],
1406: ['hide','Hide']]
1407: ,$token);
1408: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1409: [ ['exam','Exam/Quiz Problem'],
1410: ['survey','Survey'],
1411: ['problem','Homework Problem'] ]
1412: ,$token);
1413: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1414: } elsif ($target eq 'modified') {
1415: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1416: $safeeval,'mode','for');
1417: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1418: }
1419: return $result;
1420: }
1421:
1422: sub end_problemtype {
1.159 albertel 1423: return '';
1.24 albertel 1424: }
1.34 albertel 1425:
1426: sub start_startouttext {
1.159 albertel 1427: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1428: my @result=(''.'');
1429: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1430: return (@result);
1.34 albertel 1431: }
1.159 albertel 1432:
1.34 albertel 1433: sub end_startouttext {
1.159 albertel 1434: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1435: my $result='';
1436: my $text='';
1437:
1438: if ($target eq 'edit') {
1439: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1.211 albertel 1440: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1441: <td>".&mt('Delete:').
1.159 albertel 1442: &Apache::edit::deletelist($target,$token)
1443: ."</td>
1.42 albertel 1444: <td>".
1.159 albertel 1445: &Apache::edit::insertlist($target,$token).
1446: &Apache::edit::end_row().
1447: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1448: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1449: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1450: }
1451: if ($target eq 'modified') {
1.219 albertel 1452: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1453: }
1454: if ($target eq 'tex') {
1455: $result .= '\noindent ';
1456: }
1457: return $result;
1.34 albertel 1458: }
1.159 albertel 1459:
1.34 albertel 1460: sub start_endouttext {
1.159 albertel 1461: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1462: my $result='';
1463: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1464: if ($target eq "modified") {
1465: $result='<endouttext />'.
1466: &Apache::edit::handle_insertafter('startouttext'); }
1467: return $result;
1.34 albertel 1468: }
1.159 albertel 1469:
1.34 albertel 1470: sub end_endouttext {
1.159 albertel 1471: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1472: my @result=('','');
1473: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1474: return (@result);
1.34 albertel 1475: }
1.159 albertel 1476:
1.45 albertel 1477: sub delete_startouttext {
1.159 albertel 1478: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1479: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1480: my $text=$$parser['-1']->get_text("/endouttext");
1481: my $ntoken=$$parser['-1']->get_token();
1482: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1483: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1484: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1485: # they did the last time round
1486: &Apache::lonxml::increasedepth($ntoken);
1487: &Apache::lonxml::decreasedepth($ntoken);
1488: return 1;
1.193 www 1489: }
1490:
1491: sub start_simpleeditbutton {
1492: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1493: my $result='';
1.284 albertel 1494: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1495: ($target eq 'web') &&
1.284 albertel 1496: (&Apache::lonnet::allowed('srm',$env{'request.course.id'}))) {
1497: my $url=$env{'request.noversionuri'};
1.193 www 1498: $url=~s/\?.*$//;
1.278 albertel 1499: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1500: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1501: '<a href="'.$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 1502: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1503: }
1504: return $result;
1505: }
1506:
1507: sub end_simpleeditbutton {
1508: return '';
1.45 albertel 1509: }
1.34 albertel 1510:
1.1 albertel 1511: 1;
1512: __END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>