Annotation of loncom/homework/structuretags.pm, revision 1.315
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.315 ! albertel 4: # $Id: structuretags.pm,v 1.314 2005/11/03 22:10:23 albertel Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.133 sakharuk 30:
1.1 albertel 31: package Apache::structuretags;
32:
33: use strict;
34: use Apache::lonnet;
1.101 sakharuk 35: use Apache::File();
1.147 www 36: use Apache::lonmenu;
1.210 albertel 37: use Apache::lonlocal;
1.231 sakharuk 38: use Apache::lonxml;
1.267 albertel 39: use Time::HiRes qw( gettimeofday tv_interval );
1.78 harris41 40: BEGIN {
1.248 albertel 41: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));
1.10 albertel 42: }
43:
44: sub start_web {
1.159 albertel 45: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.200 albertel 46: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser);
47: if ($target eq 'web') {
48: return $bodytext;
1.159 albertel 49: }
50: return '';
1.10 albertel 51: }
52:
53: sub end_web {
1.44 ng 54: return '';
1.10 albertel 55: }
56:
57: sub start_tex {
1.159 albertel 58: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.198 sakharuk 59: my $result='';
1.200 albertel 60: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser);
61: if ($target eq 'tex') {
62: return $bodytext.' ';
1.159 albertel 63: }
1.198 sakharuk 64: return $result;;
1.10 albertel 65: }
66:
67: sub end_tex {
1.44 ng 68: return '';
1.9 albertel 69: }
70:
1.290 albertel 71: sub body_tag_start {
72: my ($target,$background,$bgcolor)=@_;
73: my $body_tag_start='<body onload="'.&Apache::lonmenu::loadevents().'" '.
74: 'onunload="'.&Apache::lonmenu::unloadevents().'" ';
75: if ($env{'browser.imagesuppress'} eq 'on') { $background=''; }
76: if ($background) {
1.306 albertel 77: &Apache::lonxml::extlink($background);
1.290 albertel 78: $body_tag_start.='background="'.$background.'" ';
79: } else {
80: if (($bgcolor) && ($env{'browser.blackwhite'} ne 'on')) {
81: $body_tag_start.='bgcolor="'.$bgcolor.'" ';
82: } else {
83: $body_tag_start.='bgcolor="#ffffff"';
84: }
85: }
86: if ($env{'browser.fontenhance'} eq 'on') {
87: $body_tag_start.=' style="font-size: x-large;" ';
88: }
89: $body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1);
1.297 albertel 90:
91: &Apache::lontexconvert::jsMath_reset();
1.290 albertel 92: if ($env{'environment.texengine'} eq 'jsMath') {
1.297 albertel 93: $body_tag_start.=&Apache::lontexconvert::jsMath_header();
1.290 albertel 94: }
95: return $body_tag_start;
96: }
1.291 albertel 97:
1.48 albertel 98: sub page_start {
1.159 albertel 99: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
100: my %found;
1.207 albertel 101: foreach my $taginside (@$tagstack) {
1.159 albertel 102: foreach my $taglookedfor ('html','body','form') {
103: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
104: }
105: }
106:
107: my $result;
108: my $head_tag_start;
109: if (!defined($found{'html'})) {
110: $result=&Apache::londefdef::start_html($target,$token,$tagstack,
111: $parstack,$parser,$safeeval);
1.254 www 112: $head_tag_start='<head>'.&Apache::lonmenu::registerurl(undef,$target).
1.261 www 113: &Apache::lonhtmlcommon::htmlareaheaders().
1.270 albertel 114: &Apache::lonhtmlcommon::spellheader().
115: &Apache::lonxml::fontsettings();
1.159 albertel 116: }
117: my $body_tag_start;
1.284 albertel 118: if (!defined($found{'body'}) && $env{'request.state'} eq 'construct'
119: && $env{'environment.remote'} eq 'off') {
1.298 albertel 120: if ($target eq 'web' || $target eq 'edit') {
1.297 albertel 121: $body_tag_start=&Apache::loncommon::bodytag();
122: $body_tag_start.=&Apache::lonxml::message_location();
123: }
1.272 albertel 124: } elsif (!defined($found{'body'})) {
1.159 albertel 125: my $background=&Apache::lonxml::get_param('background',$parstack,
126: $safeeval);
1.290 albertel 127: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
128: $safeeval);
1.299 albertel 129: $body_tag_start=&body_tag_start($target,$background,$bgcolor);
1.291 albertel 130: if ( ($target eq 'web' || $target eq 'webgrade')
131: && $env{'request.state'} ne 'construct') {
1.165 albertel 132: my ($symb,undef,undef,undef,$publicuser)=
133: &Apache::lonxml::whichuser();
134: if ($symb eq '' && !$publicuser) {
1.159 albertel 135: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
1.211 albertel 136: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
1.159 albertel 137: $body_tag_start.=$help;
138: }
139: }
1.245 albertel 140: $body_tag_start.=&Apache::lonxml::message_location();
1.159 albertel 141: }
142: my $form_tag_start;
143: if (!defined($found{'form'})) {
1.281 albertel 144: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="POST" action="';
1.284 albertel 145: my $uri=$env{'request.uri'};
146: if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
1.271 albertel 147: $form_tag_start.=$uri.'">';
1.159 albertel 148: }
149: return ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.105 albertel 150: }
151:
1.141 matthew 152: #use Time::HiRes();
1.105 albertel 153: sub get_resource_name {
1.159 albertel 154: my ($parstack,$safeeval)=@_;
1.204 albertel 155: if (defined($Apache::lonhomework::name)) {
156: return $Apache::lonhomework::name;
157: }
1.279 albertel 158: my ($symb)=&Apache::lonxml::whichuser();
159: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 160: if ($name eq '') {
161: $name=&Apache::lonnet::EXT('resource.title');
162: if ($name eq 'con_lost') { $name = ''; }
163: }
1.204 albertel 164: if ($name!~/\S+/) {
1.284 albertel 165: $name=$env{'request.uri'};
1.205 albertel 166: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 167: }
1.159 albertel 168: $Apache::lonhomework::name=$name;
169: return $name;
1.105 albertel 170: }
171:
172: sub setup_rndseed {
1.159 albertel 173: my ($safeeval)=@_;
174: my $rndseed;
1.162 albertel 175: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 176: if ($env{'request.state'} eq "construct" || $symb eq '' ||
1.247 albertel 177: $Apache::lonhomework::history{'resource.CODE'}) {
1.284 albertel 178: $rndseed=$env{'form.rndseed'};
1.159 albertel 179: if (!$rndseed) {
1.162 albertel 180: $rndseed=$Apache::lonhomework::history{'rndseed'};
181: if (!$rndseed) {
182: $rndseed=time;
183: }
1.284 albertel 184: $env{'form.rndseed'}=$rndseed;
1.162 albertel 185: }
1.284 albertel 186: if ($env{'form.resetdata'} eq &mt('New Problem Variation') ||
187: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 188: srand(time);
189: $rndseed=int(rand(2100000000));
1.284 albertel 190: $env{'form.rndseed'}=$rndseed;
191: delete($env{'form.resetdata'});
192: delete($env{'form.newrandomization'});
1.159 albertel 193: }
1.187 albertel 194: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 195: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 196: }
1.247 albertel 197: if ($Apache::lonhomework::history{'resource.CODE'}) {
198: $rndseed=&Apache::lonnet::rndseed();
199: }
1.221 albertel 200: if ($safeeval) {
201: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 202: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 203: }
1.159 albertel 204: }
205: return $rndseed;
1.105 albertel 206: }
207:
1.268 albertel 208: sub remember_problem_state {
209: return '
1.284 albertel 210: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
211: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
212: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 213: }
214:
1.105 albertel 215: sub problem_edit_header {
1.268 albertel 216: return '<input type="hidden" name="submitted" value="edit" />'.
217: &Apache::structuretags::remember_problem_state().'
1.210 albertel 218: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 219: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
220: <input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
221: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
222: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
223: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.260 albertel 224: &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
225: .'</td></tr></table>'.
1.282 albertel 226: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 227: }
228:
229: sub problem_edit_footer {
1.210 albertel 230: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 231: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
232: &Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).
1.280 albertel 233: "\n</form>\n".&Apache::loncommon::endbodytag()."\n</html>";
1.105 albertel 234: }
235:
1.235 albertel 236: sub option {
237: my ($value,$name) = @_;
238: my $result ="<option value='".$value."' ";
1.284 albertel 239: if ($env{'form.'.$name} eq $value) {
1.235 albertel 240: $result.=" selected='on' ";
241: }
242: $result.='>';
243: return $result;
244: }
245:
1.105 albertel 246: sub problem_web_to_edit_header {
1.159 albertel 247: my ($rndseed)=@_;
1.313 albertel 248: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
249: if (!$Apache::lonhomework::parsing_a_task) {
250: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
251: }
252: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 253: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
254: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 255: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 256: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 257: $rndseed.'"
1.270 albertel 258: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 259: <label><input type="checkbox" name="showallfoils" ';
1.315 ! albertel 260: my $show_all_foils_text =
! 261: ($Apache::lonhomework::parsing_a_task) ?
! 262: &mt(' Show All Instances')
! 263: : &mt(' Show All Foils');
! 264:
1.284 albertel 265: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.315 ! albertel 266: $result.= ' />'.$show_all_foils_text.
1.228 www 267: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.281 albertel 268: '</label><hr />';
1.313 albertel 269: if (!$Apache::lonhomework::parsing_a_task) {
270: $result.="
1.235 albertel 271: <nobr>
272: Problem Status:
273: <select name='problemstate'>
1.270 albertel 274: <option value=''></option>
1.235 albertel 275: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
276: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
277: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
278: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
279: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
280: </select>
281: </nobr>
282: <nobr>
283: Problem Type:
284: <select name='problemtype'>
1.270 albertel 285: <option value=''></option>
1.242 albertel 286: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
287: ".&option('problem','problemtype').&mt("Homework problem")."</option>
288: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 289: </select>
290: </nobr>
291: <nobr>
292: Feedback Mode:
293: <select name='problemstatus'>
294: <option value=''></option>
1.242 albertel 295: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
296: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 297: </select>
298: </nobr>
1.242 albertel 299: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 300: <hr />";
1.313 albertel 301: my $numtoanalyze=$env{'form.numtoanalyze'};
302: if (!$numtoanalyze) { $numtoanalyze=20; }
303: $result.= '<input type="submit" name="problemmode" value='.
304: &mt('"Calculate answers').'" /> for
1.136 albertel 305: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 306: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
307: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 308: '',undef,undef,300).
1.210 albertel 309: '<hr />';
1.313 albertel 310: }
1.159 albertel 311: return $result;
1.48 albertel 312: }
313:
1.65 albertel 314: sub initialize_storage {
1.159 albertel 315: %Apache::lonhomework::results=();
1.162 albertel 316: %Apache::lonhomework::history=();
1.159 albertel 317: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.284 albertel 318: if ($env{'request.state'} eq 'construct' || $symb eq '') {
1.159 albertel 319: %Apache::lonhomework::history=
1.284 albertel 320: &Apache::lonnet::tmprestore($env{'request.uri'},'',$domain,$name);
1.159 albertel 321: my ($temp)=keys %Apache::lonhomework::history ;
322: &Apache::lonxml::debug("Return message of $temp");
323: } else {
324: %Apache::lonhomework::history=
325: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
326: }
327: #ignore error conditions
1.67 albertel 328: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 329: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 330: }
331:
332: # -------------------------------------------------------------finalize_storage
333: # Stores away the result has to a student's environment
334: # checks form.grade_ for specific values, other wises stores
335: # to the running users environment
1.285 raeburn 336: # Will increment totals for attempts, students, and corrects
337: # if running user has student role.
1.65 albertel 338: sub finalize_storage {
1.159 albertel 339: my $result;
1.289 albertel 340: if (%Apache::lonhomework::results) {
1.159 albertel 341: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.284 albertel 342: if ($env{'request.state'} eq 'construct' || $symb eq '') {
343: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 344: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.284 albertel 345: $env{'request.uri'},'',$domain,$name);
1.159 albertel 346: &Apache::lonxml::debug('Construct Store return message:'.$result);
347: } else {
348: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
349: $symb,$courseid,$domain,$name);
350: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 351: if ($env{'request.role'} =~/^st/) {
352: &store_aggregates($symb,$courseid);
353: }
1.159 albertel 354: }
1.67 albertel 355: }
1.159 albertel 356: return $result;
1.65 albertel 357: }
1.289 albertel 358: use Data::Dumper;
1.65 albertel 359:
1.285 raeburn 360: # -------------------------------------------------------------store_aggregates
361: # Sends hash of values to be incremented in nohist_resourcetracker.db
362: # for the course. Increments total number of attempts, unique students
363: # and corrects for each part for an instance of a problem, as appropriate.
364: sub store_aggregates {
365: my ($symb,$courseid) = @_;
1.286 albertel 366: my %aggregate;
367: my @parts;
1.288 albertel 368: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
369: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 370: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 371: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 372: push(@parts, $1);
1.285 raeburn 373: }
374: }
1.286 albertel 375: foreach my $part (@parts) {
376: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
377: eq 'APPROX_ANS' ||
378: $Apache::lonhomework::results{'resource.'.$part.'.award'}
379: eq 'EXACT_ANS') {
1.287 albertel 380: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 381: }
1.286 albertel 382: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 383: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 384: } else {
1.293 albertel 385: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 386: if ($last_reset) {
1.293 albertel 387: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 388: $aggregate{$symb."\0".$part."\0users"} = 1;
389: }
390: }
1.285 raeburn 391: }
1.287 albertel 392: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 393: }
1.292 raeburn 394: if (keys (%aggregate) > 0) {
1.289 albertel 395: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 396: $cdomain,$cname);
397: }
398: }
1.289 albertel 399:
1.65 albertel 400: sub checkout_msg {
1.211 albertel 401: my %lt=&Apache::lonlocal::texthash(
402: 'resource'=>'The resource needs to be checked out',
403: '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.',
404: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
405: 'checkout'=>'Check out Exam for Viewing',
406: 'checkout?'=>'Check out Exam?');
1.159 albertel 407: return (<<ENDCHECKOUT);
1.211 albertel 408: <h2>$lt{'resource'}</h2>
409: <p>$lt{'id_expln'}</p>
410: <font color="red">
411: <p>$lt{'warning'}</p>
1.91 albertel 412: </font>
1.284 albertel 413: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.91 albertel 414: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 415: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 416: </form>
417: ENDCHECKOUT
418: }
419:
1.252 albertel 420: sub firstaccess_msg {
1.253 albertel 421: my ($time,$symb)=@_;
422: my ($map)=&Apache::lonnet::decode_symb($symb);
423: my $foldertitle=&Apache::lonnet::gettitle($map);
424: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.252 albertel 425: return (<<ENDCHECKOUT);
1.253 albertel 426: <h2>The resources in "$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 427: <form name="markaccess" method="POST" action="$env{'request.uri'}">
1.252 albertel 428: <input type="hidden" name="markaccess" value="yes" />
429: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
430: </form>
431: ENDCHECKOUT
432: }
433:
1.204 albertel 434: sub init_problem_globals {
435: my ($type)=@_;
436: #initialize globals
1.308 foxr 437: # For problems, we start out in part 0 (outside a <part> tag).
438: # and part 0 is used to describe the main body of the <problem>
439: #
1.204 albertel 440: if ($type eq 'problem') {
441: $Apache::inputtags::part='0';
442: @Apache::inputtags::partlist=('0');
1.266 albertel 443: $Apache::lonhomework::problemstatus=&get_problem_status('0');
444: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 445:
1.266 albertel 446: } elsif ($type eq 'library') {
1.204 albertel 447: $Apache::inputtags::part='';
448: @Apache::inputtags::partlist=();
449: $Apache::lonhomework::problemstatus='';
1.266 albertel 450: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 451:
1.304 albertel 452: } elsif ($type eq 'Task') {
453: $Apache::inputtags::part='0';
454: @Apache::inputtags::partlist=('0');
455: $Apache::lonhomework::problemstatus='';
456: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 457: }
458: @Apache::inputtags::responselist = ();
459: @Apache::inputtags::importlist = ();
460: @Apache::inputtags::previous=();
461: @Apache::inputtags::previous_version=();
462: $Apache::structuretags::printanswer='No';
463: @Apache::structuretags::whileconds=();
464: @Apache::structuretags::whilebody=();
465: @Apache::structuretags::whileline=();
466: $Apache::lonhomework::scantronmode=0;
467: undef($Apache::lonhomework::name);
468:
469: }
470:
471: sub reset_problem_globals {
472: my ($type)=@_;
473: undef(%Apache::lonhomework::history);
474: undef(%Apache::lonhomework::results);
475: undef($Apache::inputtags::part);
1.208 albertel 476: #don't undef this, lonhomework.pm takes care of this, we use this to
477: #detect if we try to do 2 problems in one file
478: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 479: undef($Apache::lonhomework::name);
480: }
481:
1.241 albertel 482: sub set_problem_state {
1.240 albertel 483: my ($part)=@_;
1.284 albertel 484: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 485: $Apache::lonhomework::history{"resource.$part.solved"}=
486: 'correct_by_student';
487: }
488: }
489:
1.241 albertel 490: sub get_problem_status {
491: my ($part)=@_;
1.267 albertel 492: my $problem_status;
1.284 albertel 493: if ($env{'request.state'} eq 'construct' &&
494: defined($env{'form.problemstatus'})) {
495: $problem_status=$env{'form.problemstatus'};
1.267 albertel 496: } else {
497: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
498: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 499: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 500: }
501: return $problem_status;
502: }
503:
1.9 albertel 504: sub start_problem {
1.159 albertel 505: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 506:
1.311 foxr 507: # We'll use the redirection to fix up printing of duedates.
1.312 albertel 508: &Apache::lonxml::startredirection();
1.311 foxr 509:
1.308 foxr 510: # Problems don't nest and we don't allow more than one <problem> in
511: # a .problem file.
512: #
1.184 albertel 513: if ( $Apache::inputtags::part ne '' ||
514: $Apache::lonhomework::parsing_a_problem) {
515: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
516: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
1.159 albertel 517: return '';
518: }
1.184 albertel 519:
520: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 521: &init_problem_globals('problem');
1.166 albertel 522:
1.284 albertel 523: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 524: $Apache::lonhomework::scantronmode=1;
525: }
1.161 albertel 526:
1.246 albertel 527: &initialize_storage();
1.159 albertel 528: if ($target ne 'analyze') {
529: if ($target eq 'web') {
530: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 531: }
1.284 albertel 532: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 533: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 534: if (($env{'request.state'} eq 'construct') &&
535: defined($env{'form.problemtype'})) {
536: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 537: }
1.240 albertel 538: &Apache::lonxml::debug("Found this to be of type :$Apache::ltonhomework::type:");
1.159 albertel 539: }
1.164 albertel 540: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 541: my $uri=$env{'request.uri'};
1.159 albertel 542: if ($uri=~/\.(\w+)$/) {
543: $Apache::lonhomework::type=$1;
544: &Apache::lonxml::debug("Using type of $1");
545: } else {
546: $Apache::lonhomework::type='problem';
547: &Apache::lonxml::debug("Using default type, problem, :$uri:");
548: }
1.87 albertel 549: }
1.301 albertel 550: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 551:
1.159 albertel 552: #added vars to the scripting enviroment
1.213 albertel 553: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 554: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 555: &Apache::run::run($expression,$safeeval);
1.159 albertel 556: my $status;
557: my $accessmsg;
558:
559: #should get back a <html> or the neccesary stuff to start XML/MathML
560: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
561: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.284 albertel 562: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 563:
564: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
565: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
566: $target eq 'tex') {
567: #handle exam checkout
568: if ($Apache::lonhomework::type eq 'exam') {
569: my $token=
570: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 571: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 572: $token=&Apache::lonxml::maketoken();
573: $Apache::lonhomework::history{"resource.0.outtoken"}=
574: $token;
575: }
576: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 577: }
1.284 albertel 578: if ($env{'form.markaccess'}) {
1.252 albertel 579: &Apache::lonnet::set_first_access('map');
580: }
1.159 albertel 581: #handle rand seed in construction space
582: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 583: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 584: if ($env{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 585: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
586: $rndseed.'" />'.
587: '<input type="submit" name="resetdata"
1.211 albertel 588: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 589: '<input type="hidden" name="username"
1.284 albertel 590: value="'.$env{'form.username'}.'" />';
591: if ($env{'user.adv'}) {
1.267 albertel 592: $form_tag_start.=
1.300 albertel 593: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 594: if (defined($env{'form.showallfoils'})) {
1.267 albertel 595: $form_tag_start.='checked="on"';
596: }
1.300 albertel 597: $form_tag_start.= ' />'.&mt(' Show All Foils').
598: '</label>';
1.267 albertel 599: }
600: $form_tag_start.='<hr />';
1.162 albertel 601: }
1.159 albertel 602: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
603: push (@Apache::inputtags::status,$status);
604: my $expression='$external::datestatus="'.$status.'";';
605: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
606: &Apache::run::run($expression,$safeeval);
607: &Apache::lonxml::debug("Got $status");
608: if (( $status eq 'CLOSED' ) ||
609: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 610: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 611: ( $status eq 'BANNED') ||
1.216 albertel 612: ( $status eq 'UNAVAILABLE') ||
613: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 614: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
615: if ( $target eq "web" ) {
616: $result.= $head_tag_start.'</head>';
617: my $msg=$body_tag_start;
618: if ($status eq 'UNAVAILABLE') {
1.245 albertel 619: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 620: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 621: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 622: }
1.216 albertel 623: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 624: $msg.='The problem '.$accessmsg;
625: } elsif ($status eq 'UNCHECKEDOUT') {
626: $msg.=&checkout_msg;
1.252 albertel 627: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 628: $msg.=&firstaccess_msg($accessmsg,$symb);
1.159 albertel 629: }
630: $result.=$msg.'<br />';
631: } elsif ($target eq 'tex') {
632: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
633: if ($status eq 'UNAVAILABLE') {
1.211 albertel 634: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 635: } else {
1.211 albertel 636: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 637: }
638: }
639: } elsif ($target eq 'web') {
640: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 641: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 642: $body_tag_start \n $form_tag_start".
1.227 albertel 643: '<input type="hidden" name="submitted" value="yes" />';
644: # create a page header and exit
1.284 albertel 645: if ($env{'request.state'} eq "construct") {
646: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 647: }
648: # if we are viewing someone else preserve that info
1.284 albertel 649: if (defined $env{'form.grade_symb'}) {
1.227 albertel 650: foreach my $field ('symb','courseid','domain','username') {
651: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 652: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 653: }
654: }
655: } elsif ($target eq 'tex') {
1.192 sakharuk 656: my $startminipage = '';
1.284 albertel 657: if (not $env{'form.problem_split'}=~/yes/) {
1.192 sakharuk 658: $startminipage = '\begin{minipage}{\textwidth}';
1.178 sakharuk 659: }
1.159 albertel 660: my $id = $Apache::inputtags::part;
661: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 662: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.223 sakharuk 663: my @packages = split /,/,$packages;
664: my $allow_print_points = 0;
665: foreach my $partial_key (@packages) {
1.230 albertel 666: if ($partial_key=~m/^part_0$/) {
1.223 sakharuk 667: $allow_print_points=1;
1.159 albertel 668: }
669: }
1.276 albertel 670: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
671: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1.302 albertel 672: if (lc($env{'course.'.$env{'request.course.id'}.
673: '.disableexampointprint'}) eq 'yes') {
674: $allow_print_points=0;
675: }
1.308 foxr 676: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
677: 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 ';
678: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
679: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
680:
1.312 albertel 681: # Figure out what the due date is and if we need to print
682: # it in the problem header. We have been logging the
683: # last due date written to file.
1.308 foxr 684:
685: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
686: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.159 albertel 687: my $temp_file;
1.284 albertel 688: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1.308 foxr 689:
1.312 albertel 690: # Figure out what the last printed due date is or set it
691: # to the epoch if no duedates have been printed.
1.308 foxr 692:
693: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1.159 albertel 694: if (-e $filename) {
695: $temp_file = Apache::File->new($filename);
1.308 foxr 696: my @due_file = <$temp_file>;
697: $due_file_content = $due_file[$#due_file];
698: chomp $due_file_content;
699: }
1.312 albertel 700:
701: # comparisons of the absolute times
1.309 foxr 702: if ($due_file_content != $duetime) {
1.159 albertel 703: $temp_file = Apache::File->new('>'.$filename);
1.308 foxr 704: print $temp_file "$duetime\n";
1.284 albertel 705: if (not $env{'request.symb'} =~ m/\.page_/) {
1.159 albertel 706: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1.304 albertel 707: $result .= $begin_doc.
708: '\textit{Due date: '.$duedate.'} '.$toc_line;
1.159 albertel 709: } else {
1.304 albertel 710: $result .= $begin_doc.$toc_line;
1.159 albertel 711: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
712: }
1.104 sakharuk 713: } else {
1.159 albertel 714: $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
1.104 sakharuk 715: }
1.101 sakharuk 716: } else {
1.284 albertel 717: if (not $env{'request.symb'} =~ m/\.page_/) {
1.304 albertel 718: $result .= $begin_doc.$toc_line;
1.159 albertel 719: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
720: } else {
721: $result .= '\vskip 1mm \\\\\\\\';
722: }
723: }
1.99 sakharuk 724: }
1.159 albertel 725: } elsif ($target eq 'edit') {
726: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
727: &problem_edit_header();
1.226 albertel 728: $Apache::lonxml::warnings_error_header=
729: &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 730: my $temp=&Apache::edit::insertlist($target,$token);
731: $result.=$temp;
732: } elsif ($target eq 'modified') {
733: $result=$token->[4];
734: $result.=&Apache::edit::handle_insert();
735: } else {
736: # page_start returned a starting result, delete it if we don't need it
737: $result = '';
1.99 sakharuk 738: }
1.159 albertel 739: return $result;
1.9 albertel 740: }
741:
742: sub end_problem {
1.159 albertel 743: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.312 albertel 744: my $result= &Apache::lonxml::endredirection(); # started in &start_problem
1.310 foxr 745:
1.159 albertel 746: my $status=$Apache::inputtags::status['-1'];
747: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
748: $target eq 'tex') {
1.249 albertel 749: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 750: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 751: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
752: &Apache::inputtags::grade;
753: } else {
754: # move any submission data to .hidden
755: &Apache::inputtags::hidealldata($Apache::inputtags::part);
756: }
1.159 albertel 757: } elsif ( ($target eq 'web' || $target eq 'tex') &&
758: $Apache::inputtags::part eq '0' &&
1.252 albertel 759: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 760: # if part is zero, no <part>s existed, so we need show the current
761: # grading status
762: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
763: $result.= $gradestatus;
764: }
765: if (
1.284 albertel 766: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 767: ($target eq 'answer') || ($target eq 'tex')
768: ) {
1.227 albertel 769: if ($target ne 'tex' &&
1.284 albertel 770: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 771: $result.="</form>";
772: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
1.159 albertel 773: }
774: if ($target eq 'web') {
1.281 albertel 775: $result.=&Apache::lonxml::xmlend().'</html>';
1.159 albertel 776: } elsif ($target eq 'tex') {
1.178 sakharuk 777: my $endminipage = '';
1.284 albertel 778: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 779: $endminipage = '\end{minipage}';
780: }
1.284 albertel 781: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 782: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 783: $result=~s/<\/html>//;
1.159 albertel 784: } else {
1.262 sakharuk 785: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 786: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 787: $result .= $endminipage.'\end{document} ';
788: } else {
789: $result .= '';
790: }
1.159 albertel 791: }
792: }
793: }
794: if ($target eq 'grade') {
795: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
796: &finalize_storage();
797: }
1.284 albertel 798: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
799: && $env{'form.answer_output_mode'} ne 'tex') {
1.294 albertel 800: $result.=&Apache::lonxml::xmlend().'</html>';
801: # normally we get it from above, but in CSTR
1.172 albertel 802: # we always show answer mode too.
1.159 albertel 803: }
804: } elsif ($target eq 'meta') {
805: if ($Apache::inputtags::part eq '0') {
1.179 albertel 806: @Apache::inputtags::response=();
1.159 albertel 807: $result=&Apache::response::mandatory_part_meta;
808: }
1.215 albertel 809: $result.=&Apache::response::meta_part_order();
1.258 albertel 810: $result.=&Apache::response::meta_response_order();
1.159 albertel 811: } elsif ($target eq 'edit') {
812: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 813: $result .= &problem_edit_footer();
1.159 albertel 814: }
1.155 albertel 815:
1.284 albertel 816: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 817: &Apache::inputtags::check_for_duplicate_ids();
818: }
1.204 albertel 819:
820: &reset_problem_globals('problem');
1.159 albertel 821:
822: return $result;
1.48 albertel 823: }
824:
1.108 albertel 825:
1.48 albertel 826: sub start_library {
1.159 albertel 827: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
828: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 829: if ($$tagstack[0] eq 'library') {
830: &init_problem_globals('library');
831: $Apache::lonhomework::type='problem';
832: }
1.159 albertel 833: if ($target eq 'edit') {
834: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
835: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
836: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
837: &problem_edit_header();
838: my $temp=&Apache::edit::insertlist($target,$token);
839: $result.=$temp;
840: } elsif ($target eq 'modified') {
841: $result=$token->[4];
842: $result.=&Apache::edit::handle_insert();
843: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 844: $env{'request.state'} eq "construct" ) {
1.159 albertel 845: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
846: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
847: my $name=&get_resource_name($parstack,$safeeval);
848: my $rndseed=&setup_rndseed($safeeval);
849: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 850: $body_tag_start \n $form_tag_start".
1.159 albertel 851: '<input type="hidden" name="submitted" value="yes" />';
852: $result.=&problem_web_to_edit_header($rndseed);
853: }
854: return $result;
1.48 albertel 855: }
856:
857: sub end_library {
1.159 albertel 858: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
859: my $result='';
860: if ($target eq 'edit') {
861: $result=&problem_edit_footer();
862: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 863: $env{'request.state'} eq "construct") {
1.280 albertel 864: $result.='</form>'.&Apache::loncommon::endbodytag().
865: &Apache::lonxml::xmlend();
1.159 albertel 866: }
1.204 albertel 867: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 868: return $result;
1.197 www 869: }
870:
871: sub start_definetag {
872: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
873:
874: my $result;
875:
876: my $name = $token->[2]->{'name'};
877: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
878: if ($name=~/^\//) {
879: $result=
880: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
881: } else {
882: $result=
883: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
884: }
885: $skip=~s/\</\<\;/gs;
886: $skip=~s/\>/\>\;/gs;
887: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
888: return $result;
889: }
890:
891: sub end_definetag {
892: return '';
1.1 albertel 893: }
894:
895: sub start_block {
1.201 albertel 896: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 897:
898: my $result;
1.1 albertel 899:
1.160 albertel 900: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 901: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 902: my $code = $token->[2]->{'condition'};
1.201 albertel 903: if (defined($code)) {
1.137 albertel 904: if (!$Apache::lonxml::default_homework_loaded) {
905: &Apache::lonxml::default_homework_load($safeeval);
906: }
1.131 albertel 907: $result = &Apache::run::run($code,$safeeval);
908: &Apache::lonxml::debug("block :$code: returned :$result:");
909: } else {
910: $result='1';
911: }
912: if ( ! $result ) {
1.201 albertel 913: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 914: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
915: }
916: $result='';
917: } elsif ($target eq 'edit') {
918: $result .=&Apache::edit::tag_start($target,$token);
919: $result .=&Apache::edit::text_arg('Test Condition:','condition',
920: $token,40);
921: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
922: } elsif ($target eq 'modified') {
923: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
924: $safeeval,'condition');
925: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 926: }
1.131 albertel 927: return $result;
1.1 albertel 928: }
929:
930: sub end_block {
1.167 www 931: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
932: my $result;
933: if ($target eq "edit") {
934: $result.= &Apache::edit::tag_end($target,$token,'');
935: }
936: return $result;
937: }
938:
939: sub start_languageblock {
1.201 albertel 940: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 941:
942: my $result;
943:
944: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
945: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 946: my $include = $token->[2]->{'include'};
947: my $exclude = $token->[2]->{'exclude'};
948: my %languages=&Apache::loncommon::display_languages();
949: $result='1';
950: if ($include) {
951: $result='';
952: foreach (split(/\,/,$include)) {
953: if ($languages{$_}) { $result='1'; }
954: }
955: }
956: if ($exclude) {
957: foreach (split(/\,/,$exclude)) {
958: if ($languages{$_}) { $result='0'; }
959: }
960: }
961: if ( ! $result ) {
962: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
963: $style);
964: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
965: }
966: $result='';
1.167 www 967: } elsif ($target eq 'edit') {
968: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 969: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 970: $token,40);
1.211 albertel 971: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 972: $token,40);
973: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
974: } elsif ($target eq 'modified') {
975: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 976: $safeeval,'include',
977: 'exclude');
1.167 www 978: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
979: }
980: return $result;
981: }
982:
983: sub end_languageblock {
1.170 www 984: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
985: my $result;
1.201 albertel 986: if ($target eq "edit") {
1.170 www 987: $result.= &Apache::edit::tag_end($target,$token,'');
988: }
989: return $result;
990: }
991:
992: sub start_instructorcomment {
1.201 albertel 993: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 994:
995: my $result;
996:
997: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
998: $target eq 'tex' || $target eq 'analyze') {
1.284 albertel 999: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1000: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1001: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1002: $parser,$style);
1.170 www 1003: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1004: }
1005: $result='';
1006: } elsif ($target eq 'edit') {
1007: $result .=&Apache::edit::tag_start($target,$token);
1008: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1009: }
1010: return $result;
1011: }
1012:
1013: sub end_instructorcomment {
1.159 albertel 1014: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1015: my $result;
1016: if ($target eq "edit") {
1017: $result.= &Apache::edit::tag_end($target,$token,'');
1018: }
1019: return $result;
1.4 tsai 1020: }
1021:
1022: sub start_while {
1.159 albertel 1023: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1024:
1.160 albertel 1025: my $result;
1.161 albertel 1026: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 1027: $target eq 'tex' || $target eq 'analyze') {
1028: my $code = $token->[2]->{'condition'};
1.4 tsai 1029:
1.160 albertel 1030: push( @Apache::structuretags::whileconds, $code);
1031: if (!$Apache::lonxml::default_homework_loaded) {
1032: &Apache::lonxml::default_homework_load($safeeval);
1033: }
1034: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 1035: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 1036: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1037: push( @Apache::structuretags::whileline, $token->[5]);
1038: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1039: if ( $result ) {
1040: &Apache::lonxml::newparser($parser,\$bodytext);
1041: }
1042: } elsif ($target eq 'edit') {
1043: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1044: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1045: $token,40);
1046: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1047: } elsif ($target eq 'modified') {
1048: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1049: $safeeval,'condition');
1050: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1051: }
1.160 albertel 1052: return $result;
1.4 tsai 1053: }
1054:
1055: sub end_while {
1.159 albertel 1056: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1057: my $result;
1058:
1059: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1060: $target eq 'tex' || $target eq 'analyze') {
1061: my $code = pop(@Apache::structuretags::whileconds);
1062: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1063: my $line = pop(@Apache::structuretags::whileline);
1064: my $return = &Apache::run::run($code,$safeeval);
1065: my $starttime=time;
1066: my $error=0;
1067: while ($return) {
1068: if (time-$starttime >
1069: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1070: #$return = 0; $error=1; next;
1.161 albertel 1071: }
1072: $result.=&Apache::scripttag::xmlparse($bodytext);
1073: $return = &Apache::run::run($code,$safeeval);
1074: }
1075: if ($error) {
1.270 albertel 1076: &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 1077: }
1078: } elsif ($target eq "edit") {
1079: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1080: }
1.160 albertel 1081: return $result;
1.1 albertel 1082: }
1.6 tsai 1083:
1.160 albertel 1084: # <randomlist show="1">
1.6 tsai 1085: # <tag1>..</tag1>
1086: # <tag2>..</tag2>
1087: # <tag3>..</tag3>
1.160 albertel 1088: # ...
1.6 tsai 1089: # </randomlist>
1090: sub start_randomlist {
1.159 albertel 1091: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1092: my $result;
1093: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1094: $target eq 'tex' || $target eq 'analyze') {
1095: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1096: my $b_parser= HTML::LCParser->new(\$body);
1097: $b_parser->xml_mode(1);
1098: $b_parser->marked_sections(1);
1.159 albertel 1099: my $b_tok;
1100: my @randomlist;
1101: my $list_item;
1102: while($b_tok = $b_parser->get_token() ) {
1103: if($b_tok->[0] eq 'S') { # start tag
1104: # get content of the tag until matching end tag
1105: # get all text upto the matching tag
1106: # and push the content into @randomlist
1107: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1108: $b_parser);
1109: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1110: push(@randomlist,$list_item);
1111: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1112: # $list_item</b>";
1113: }
1114: if($b_tok->[0] eq 'T') { # text
1115: # what to do with text in between tags?
1116: # print "<b>TEXT $b_tok->[1]</b><br />";
1117: }
1118: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1119: # print "<b>END-TAG $b_tok->[1]</b><br />";
1120: # }
1121: }
1.303 albertel 1122: if (@randomlist) {
1123: my @idx_arr = (0 .. $#randomlist);
1124: &Apache::structuretags::shuffle(\@idx_arr);
1125: my $bodytext = '';
1126: my $show=$#randomlist;
1127: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1128: $showarg--;
1129: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1130: for(0 .. $show) {
1131: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1132: }
1133: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1134: }
1135: } elsif ($target eq 'edit' ) {
1136: $result .=&Apache::edit::tag_start($target,$token);
1137: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1138: $token,5);
1139: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1140: } elsif ($target eq 'modified' ) {
1141: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1142: $safeeval,'show');
1143: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1144: }
1145: return $result;
1.7 tsai 1146: }
1147:
1148: sub shuffle {
1149: my $a=shift;
1150: my $i;
1.303 albertel 1151: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1152: &Apache::response::pushrandomnumber();
1.159 albertel 1153: for($i=@$a;--$i;) {
1154: my $j=int(&Math::Random::random_uniform() * ($i+1));
1155: next if $i == $j;
1156: @$a[$i,$j] = @$a[$j,$i];
1157: }
1.251 albertel 1158: &Apache::response::poprandomnumber();
1.7 tsai 1159: }
1.6 tsai 1160: }
1161:
1162: sub end_randomlist {
1.159 albertel 1163: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1164: my $result;
1165: if ($target eq 'edit' ) {
1166: $result=&Apache::edit::tag_end($target,$token,
1167: 'End Randomly Parsed Block');
1168: }
1169: return $result;
1.6 tsai 1170: }
1171:
1.283 albertel 1172: sub ordered_show_check {
1173: my $last_part=$Apache::inputtags::partlist[-2];
1174: my $in_order=
1175: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1176: my $in_order_show=1;
1177: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1178: $in_order_show=&Apache::response::check_status($last_part);
1179: }
1180: return $in_order_show;
1181: }
1182:
1.11 albertel 1183: sub start_part {
1.159 albertel 1184: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.312 albertel 1185: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1186: # duedates.
1.159 albertel 1187: my $result='';
1188: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1189: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1190: $Apache::inputtags::part=$id;
1.177 albertel 1191: push(@Apache::inputtags::partlist,$id);
1192: @Apache::inputtags::response=();
1.159 albertel 1193: @Apache::inputtags::previous=();
1194: @Apache::inputtags::previous_version=();
1.241 albertel 1195: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1196: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1197: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1198: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1199: my $in_order_show=&ordered_show_check();
1.214 albertel 1200: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1201: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1202: &Apache::run::run($expression,$safeeval);
1.159 albertel 1203:
1204: if ($target eq 'meta') {
1.224 www 1205: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1206: return &Apache::response::mandatory_part_meta.
1207: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1208: } elsif ($target eq 'web' || $target eq 'grade' ||
1209: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1210: if ($hidden || !$in_order_show) {
1.159 albertel 1211: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1212: } else {
1213: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1214: push (@Apache::inputtags::status,$status);
1215: my $expression='$external::datestatus="'.$status.'";';
1216: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1217: &Apache::run::run($expression,$safeeval);
1.284 albertel 1218: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1219: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1220: }
1.216 albertel 1221: if (( $status eq 'CLOSED' ) ||
1222: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1223: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1224: ( $status eq 'BANNED') ||
1225: ( $status eq 'UNAVAILABLE') ||
1226: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 1227: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1228: if ( $target eq "web" ) {
1.211 albertel 1229: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1230: } elsif ( $target eq 'tex' ) {
1.284 albertel 1231: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1232: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1233: } else {
1.211 albertel 1234: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1235: }
1.159 albertel 1236: }
1237: } else {
1238: if ($target eq 'tex') {
1.284 albertel 1239: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1240: if ($$tagstack[-2] eq 'td') {
1241: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1242: } else {
1243: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1244: }
1.195 sakharuk 1245: }
1.159 albertel 1246: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1247: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1248: my @allkeys = split /,/,$allkeys;
1249: my $allow_print_points = 0;
1250: foreach my $partial_key (@allkeys) {
1.230 albertel 1251: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1252: if ($1 ne '0') {$allow_print_points=1;}
1253: }
1254: }
1.275 albertel 1255: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1256: if (defined($maxtries) && $maxtries < 0) {
1257: $allow_print_points=0;
1258: }
1.302 albertel 1259: if (lc($env{'course.'.$env{'request.course.id'}.
1260: '.disableexampointprint'}) eq 'yes') {
1261: $allow_print_points=0;
1262: }
1.222 sakharuk 1263: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1264: } elsif ($target eq 'web') {
1265: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1266: }
1267: }
1268: }
1269: } elsif ($target eq 'edit') {
1270: $result.=&Apache::edit::tag_start($target,$token);
1271: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1272: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1273: ' '.
1274: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1275: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1276: } elsif ($target eq 'modified') {
1277: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1278: $safeeval,'id','display');
1.159 albertel 1279: if ($constructtag) {
1.225 albertel 1280: #limiting ids to only letters numbers, and space
1.224 www 1281: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1282: $result = &Apache::edit::rebuild_tag($token);
1283: $result.=&Apache::edit::handle_insert();
1284: }
1285: }
1286: return $result;
1.11 albertel 1287: }
1288:
1289: sub end_part {
1.159 albertel 1290: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1291: &Apache::lonxml::debug("in end_part $target ");
1292: my $status=$Apache::inputtags::status['-1'];
1293: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1294: my $in_order_show=&ordered_show_check();
1.312 albertel 1295: my $result= &Apache::lonxml::endredirection(); # started in &start_part
1296: if ($target eq 'grade') {
1.249 albertel 1297: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1298: !$hidden && $in_order_show) {
1.311 foxr 1299: $result.=&Apache::inputtags::grade;
1.249 albertel 1300: } else {
1301: # move any submission data to .hidden
1302: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1303: }
1.283 albertel 1304: } elsif (($target eq 'web' || $target eq 'tex') &&
1305: !$hidden && $in_order_show) {
1.159 albertel 1306: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1307: $target);
1.212 albertel 1308: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1309: $gradestatus='';
1310: }
1.311 foxr 1311: $result.=$gradestatus;
1.265 sakharuk 1312: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1313: } elsif ($target eq 'edit') {
1.311 foxr 1314: $result.=&Apache::edit::end_table();
1.159 albertel 1315: }
1316: pop @Apache::inputtags::status;
1317: $Apache::inputtags::part='';
1.295 albertel 1318: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1319: return $result;
1.11 albertel 1320: }
1.1 albertel 1321:
1.25 albertel 1322: sub start_preduedate {
1.159 albertel 1323: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1324: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1.236 albertel 1325: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1326: if (!$Apache::lonhomework::scantronmode &&
1327: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1328: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1329: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.159 albertel 1330: &Apache::lonxml::get_all_text("/preduedate",$parser);
1331: }
1.24 albertel 1332: }
1.159 albertel 1333: return '';
1.24 albertel 1334: }
1335:
1.25 albertel 1336: sub end_preduedate {
1.159 albertel 1337: return '';
1.24 albertel 1338: }
1339:
1.25 albertel 1340: sub start_postanswerdate {
1.159 albertel 1341: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.234 albertel 1342: if ($target eq 'web' || $target eq 'grade') {
1.300 albertel 1343: if ($Apache::lonhomework::scantronmode ||
1344: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.159 albertel 1345: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1346: }
1347: } elsif ($target eq 'tex') {
1.234 albertel 1348: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1.159 albertel 1349: }
1350: return '';
1.24 albertel 1351: }
1352:
1.25 albertel 1353: sub end_postanswerdate {
1.159 albertel 1354: return '';
1.24 albertel 1355: }
1356:
1.25 albertel 1357: sub start_notsolved {
1.159 albertel 1358: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1359: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1360: $target eq 'tex') {
1361: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1362: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1363: if ($gradestatus =~ /^correct/ &&
1364: &Apache::response::show_answer()) {
1.159 albertel 1365: &Apache::lonxml::debug("skipping");
1366: &Apache::lonxml::get_all_text("/notsolved",$parser);
1367: }
1.24 albertel 1368: }
1.159 albertel 1369: return '';
1.24 albertel 1370: }
1371:
1.25 albertel 1372: sub end_notsolved {
1.159 albertel 1373: return '';
1.24 albertel 1374: }
1375:
1376: sub start_solved {
1.159 albertel 1377: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1378: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1379: $target eq 'tex') {
1380: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1381: if ($gradestatus !~ /^correct/ ||
1382: !&Apache::response::show_answer()) {
1.159 albertel 1383: &Apache::lonxml::get_all_text("/solved",$parser);
1384: }
1.24 albertel 1385: }
1.159 albertel 1386: return '';
1.24 albertel 1387: }
1388:
1389: sub end_solved {
1.248 albertel 1390: return '';
1391: }
1392:
1393: sub start_problemtype {
1394: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1395: my $result;
1396: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1397: $target eq 'tex' || $target eq 'analyze') {
1398: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1399: if (!defined($mode)) { $mode='show'; }
1400: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1401: my $found=0;
1402: foreach my $type (split(',',$for)) {
1403: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1404: }
1405: if ($mode eq 'show' && !$found) {
1406: &Apache::lonxml::get_all_text("/problemtype",$parser);
1407: }
1408: if ($mode eq 'hide' && $found) {
1409: &Apache::lonxml::get_all_text("/problemtype",$parser);
1410: }
1411: } elsif ($target eq 'edit') {
1412: $result .=&Apache::edit::tag_start($target,$token);
1413: $result.=&Apache::edit::select_arg('Mode:','mode',
1414: [['show','Show'],
1415: ['hide','Hide']]
1416: ,$token);
1417: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1418: [ ['exam','Exam/Quiz Problem'],
1419: ['survey','Survey'],
1420: ['problem','Homework Problem'] ]
1421: ,$token);
1422: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1423: } elsif ($target eq 'modified') {
1424: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1425: $safeeval,'mode','for');
1426: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1427: }
1428: return $result;
1429: }
1430:
1431: sub end_problemtype {
1.159 albertel 1432: return '';
1.24 albertel 1433: }
1.34 albertel 1434:
1435: sub start_startouttext {
1.159 albertel 1436: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1437: my @result=(''.'');
1438: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1439: return (@result);
1.34 albertel 1440: }
1.159 albertel 1441:
1.34 albertel 1442: sub end_startouttext {
1.159 albertel 1443: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1444: my $result='';
1445: my $text='';
1446:
1447: if ($target eq 'edit') {
1448: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1.211 albertel 1449: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1450: <td>".&mt('Delete:').
1.159 albertel 1451: &Apache::edit::deletelist($target,$token)
1452: ."</td>
1.42 albertel 1453: <td>".
1.159 albertel 1454: &Apache::edit::insertlist($target,$token).
1455: &Apache::edit::end_row().
1456: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1457: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1458: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1459: }
1460: if ($target eq 'modified') {
1.219 albertel 1461: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1462: }
1463: if ($target eq 'tex') {
1464: $result .= '\noindent ';
1465: }
1466: return $result;
1.34 albertel 1467: }
1.159 albertel 1468:
1.34 albertel 1469: sub start_endouttext {
1.159 albertel 1470: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1471: my $result='';
1472: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1473: if ($target eq "modified") {
1474: $result='<endouttext />'.
1475: &Apache::edit::handle_insertafter('startouttext'); }
1476: return $result;
1.34 albertel 1477: }
1.159 albertel 1478:
1.34 albertel 1479: sub end_endouttext {
1.159 albertel 1480: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1481: my @result=('','');
1482: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1483: return (@result);
1.34 albertel 1484: }
1.159 albertel 1485:
1.45 albertel 1486: sub delete_startouttext {
1.159 albertel 1487: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1488: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1489: my $text=$$parser['-1']->get_text("/endouttext");
1490: my $ntoken=$$parser['-1']->get_token();
1491: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1492: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1493: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1494: # they did the last time round
1495: &Apache::lonxml::increasedepth($ntoken);
1496: &Apache::lonxml::decreasedepth($ntoken);
1497: return 1;
1.193 www 1498: }
1499:
1500: sub start_simpleeditbutton {
1501: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1502: my $result='';
1.284 albertel 1503: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1504: ($target eq 'web') &&
1.284 albertel 1505: (&Apache::lonnet::allowed('srm',$env{'request.course.id'}))) {
1506: my $url=$env{'request.noversionuri'};
1.193 www 1507: $url=~s/\?.*$//;
1.278 albertel 1508: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1509: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1510: '<a href="'.$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 1511: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1512: }
1513: return $result;
1514: }
1515:
1516: sub end_simpleeditbutton {
1517: return '';
1.45 albertel 1518: }
1.34 albertel 1519:
1.1 albertel 1520: 1;
1521: __END__
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