Annotation of loncom/homework/structuretags.pm, revision 1.318
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.318 ! albertel 4: # $Id: structuretags.pm,v 1.317 2005/11/08 19:35:56 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 $body_tag_start;
1.318 ! albertel 118: if (!defined($found{'body'}) && $env{'request.state'} eq 'construct') {
! 119: if ($env{'environment.remote'} eq 'off') {
! 120: if ($target eq 'web' || $target eq 'edit') {
! 121: $body_tag_start=&Apache::loncommon::bodytag();
! 122: $body_tag_start.=&Apache::lonxml::message_location();
! 123: }
! 124: } else {
! 125: if ($target eq 'web' || $target eq 'edit') {
! 126: $body_tag_start=&Apache::loncommon::bodytag(undef,undef,undef,1);
! 127: $body_tag_start.=&Apache::lonxml::message_location();
! 128: }
1.297 albertel 129: }
1.272 albertel 130: } elsif (!defined($found{'body'})) {
1.159 albertel 131: my $background=&Apache::lonxml::get_param('background',$parstack,
132: $safeeval);
1.290 albertel 133: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
134: $safeeval);
1.299 albertel 135: $body_tag_start=&body_tag_start($target,$background,$bgcolor);
1.291 albertel 136: if ( ($target eq 'web' || $target eq 'webgrade')
137: && $env{'request.state'} ne 'construct') {
1.165 albertel 138: my ($symb,undef,undef,undef,$publicuser)=
139: &Apache::lonxml::whichuser();
140: if ($symb eq '' && !$publicuser) {
1.159 albertel 141: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
1.211 albertel 142: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
1.159 albertel 143: $body_tag_start.=$help;
144: }
145: }
1.245 albertel 146: $body_tag_start.=&Apache::lonxml::message_location();
1.159 albertel 147: }
148: my $form_tag_start;
149: if (!defined($found{'form'})) {
1.281 albertel 150: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="POST" action="';
1.284 albertel 151: my $uri=$env{'request.uri'};
152: if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
1.271 albertel 153: $form_tag_start.=$uri.'">';
1.159 albertel 154: }
155: return ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.105 albertel 156: }
157:
1.141 matthew 158: #use Time::HiRes();
1.105 albertel 159: sub get_resource_name {
1.159 albertel 160: my ($parstack,$safeeval)=@_;
1.204 albertel 161: if (defined($Apache::lonhomework::name)) {
162: return $Apache::lonhomework::name;
163: }
1.279 albertel 164: my ($symb)=&Apache::lonxml::whichuser();
165: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 166: if ($name eq '') {
167: $name=&Apache::lonnet::EXT('resource.title');
168: if ($name eq 'con_lost') { $name = ''; }
169: }
1.204 albertel 170: if ($name!~/\S+/) {
1.284 albertel 171: $name=$env{'request.uri'};
1.205 albertel 172: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 173: }
1.159 albertel 174: $Apache::lonhomework::name=$name;
175: return $name;
1.105 albertel 176: }
177:
178: sub setup_rndseed {
1.159 albertel 179: my ($safeeval)=@_;
180: my $rndseed;
1.162 albertel 181: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 182: if ($env{'request.state'} eq "construct" || $symb eq '' ||
1.247 albertel 183: $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 184: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 185: ['rndseed']);
1.284 albertel 186: $rndseed=$env{'form.rndseed'};
1.159 albertel 187: if (!$rndseed) {
1.162 albertel 188: $rndseed=$Apache::lonhomework::history{'rndseed'};
189: if (!$rndseed) {
190: $rndseed=time;
191: }
1.284 albertel 192: $env{'form.rndseed'}=$rndseed;
1.162 albertel 193: }
1.284 albertel 194: if ($env{'form.resetdata'} eq &mt('New Problem Variation') ||
195: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 196: srand(time);
197: $rndseed=int(rand(2100000000));
1.284 albertel 198: $env{'form.rndseed'}=$rndseed;
199: delete($env{'form.resetdata'});
200: delete($env{'form.newrandomization'});
1.159 albertel 201: }
1.187 albertel 202: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 203: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 204: }
1.247 albertel 205: if ($Apache::lonhomework::history{'resource.CODE'}) {
206: $rndseed=&Apache::lonnet::rndseed();
207: }
1.221 albertel 208: if ($safeeval) {
209: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 210: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 211: }
1.159 albertel 212: }
213: return $rndseed;
1.105 albertel 214: }
215:
1.268 albertel 216: sub remember_problem_state {
217: return '
1.284 albertel 218: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
219: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
220: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 221: }
222:
1.105 albertel 223: sub problem_edit_header {
1.268 albertel 224: return '<input type="hidden" name="submitted" value="edit" />'.
225: &Apache::structuretags::remember_problem_state().'
1.210 albertel 226: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 227: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
228: <input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
229: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
230: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
231: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.260 albertel 232: &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
233: .'</td></tr></table>'.
1.282 albertel 234: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 235: }
236:
237: sub problem_edit_footer {
1.210 albertel 238: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 239: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
240: &Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).
1.280 albertel 241: "\n</form>\n".&Apache::loncommon::endbodytag()."\n</html>";
1.105 albertel 242: }
243:
1.235 albertel 244: sub option {
245: my ($value,$name) = @_;
246: my $result ="<option value='".$value."' ";
1.284 albertel 247: if ($env{'form.'.$name} eq $value) {
1.235 albertel 248: $result.=" selected='on' ";
249: }
250: $result.='>';
251: return $result;
252: }
253:
1.105 albertel 254: sub problem_web_to_edit_header {
1.159 albertel 255: my ($rndseed)=@_;
1.313 albertel 256: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
257: if (!$Apache::lonhomework::parsing_a_task) {
258: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
259: }
260: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 261: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
262: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 263: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 264: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 265: $rndseed.'"
1.270 albertel 266: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 267: <label><input type="checkbox" name="showallfoils" ';
1.315 albertel 268: my $show_all_foils_text =
269: ($Apache::lonhomework::parsing_a_task) ?
270: &mt(' Show All Instances')
271: : &mt(' Show All Foils');
272:
1.284 albertel 273: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.315 albertel 274: $result.= ' />'.$show_all_foils_text.
1.228 www 275: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.281 albertel 276: '</label><hr />';
1.313 albertel 277: if (!$Apache::lonhomework::parsing_a_task) {
278: $result.="
1.235 albertel 279: <nobr>
280: Problem Status:
281: <select name='problemstate'>
1.270 albertel 282: <option value=''></option>
1.235 albertel 283: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
284: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
285: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
286: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
287: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
288: </select>
289: </nobr>
290: <nobr>
291: Problem Type:
292: <select name='problemtype'>
1.270 albertel 293: <option value=''></option>
1.242 albertel 294: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
295: ".&option('problem','problemtype').&mt("Homework problem")."</option>
296: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 297: </select>
298: </nobr>
299: <nobr>
300: Feedback Mode:
301: <select name='problemstatus'>
302: <option value=''></option>
1.242 albertel 303: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
304: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 305: </select>
306: </nobr>
1.242 albertel 307: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 308: <hr />";
1.313 albertel 309: my $numtoanalyze=$env{'form.numtoanalyze'};
310: if (!$numtoanalyze) { $numtoanalyze=20; }
311: $result.= '<input type="submit" name="problemmode" value='.
312: &mt('"Calculate answers').'" /> for
1.136 albertel 313: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 314: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
315: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 316: '',undef,undef,300).
1.210 albertel 317: '<hr />';
1.313 albertel 318: }
1.159 albertel 319: return $result;
1.48 albertel 320: }
321:
1.65 albertel 322: sub initialize_storage {
1.159 albertel 323: %Apache::lonhomework::results=();
1.162 albertel 324: %Apache::lonhomework::history=();
1.159 albertel 325: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.284 albertel 326: if ($env{'request.state'} eq 'construct' || $symb eq '') {
1.159 albertel 327: %Apache::lonhomework::history=
1.284 albertel 328: &Apache::lonnet::tmprestore($env{'request.uri'},'',$domain,$name);
1.159 albertel 329: my ($temp)=keys %Apache::lonhomework::history ;
330: &Apache::lonxml::debug("Return message of $temp");
331: } else {
332: %Apache::lonhomework::history=
333: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
334: }
335: #ignore error conditions
1.67 albertel 336: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 337: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 338: }
339:
340: # -------------------------------------------------------------finalize_storage
341: # Stores away the result has to a student's environment
342: # checks form.grade_ for specific values, other wises stores
343: # to the running users environment
1.285 raeburn 344: # Will increment totals for attempts, students, and corrects
345: # if running user has student role.
1.65 albertel 346: sub finalize_storage {
1.159 albertel 347: my $result;
1.289 albertel 348: if (%Apache::lonhomework::results) {
1.159 albertel 349: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.284 albertel 350: if ($env{'request.state'} eq 'construct' || $symb eq '') {
351: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 352: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.284 albertel 353: $env{'request.uri'},'',$domain,$name);
1.159 albertel 354: &Apache::lonxml::debug('Construct Store return message:'.$result);
355: } else {
356: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
357: $symb,$courseid,$domain,$name);
358: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 359: if ($env{'request.role'} =~/^st/) {
360: &store_aggregates($symb,$courseid);
361: }
1.159 albertel 362: }
1.67 albertel 363: }
1.159 albertel 364: return $result;
1.65 albertel 365: }
1.289 albertel 366: use Data::Dumper;
1.65 albertel 367:
1.285 raeburn 368: # -------------------------------------------------------------store_aggregates
369: # Sends hash of values to be incremented in nohist_resourcetracker.db
370: # for the course. Increments total number of attempts, unique students
371: # and corrects for each part for an instance of a problem, as appropriate.
372: sub store_aggregates {
373: my ($symb,$courseid) = @_;
1.286 albertel 374: my %aggregate;
375: my @parts;
1.288 albertel 376: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
377: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 378: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 379: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 380: push(@parts, $1);
1.285 raeburn 381: }
382: }
1.286 albertel 383: foreach my $part (@parts) {
384: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
385: eq 'APPROX_ANS' ||
386: $Apache::lonhomework::results{'resource.'.$part.'.award'}
387: eq 'EXACT_ANS') {
1.287 albertel 388: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 389: }
1.286 albertel 390: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 391: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 392: } else {
1.293 albertel 393: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 394: if ($last_reset) {
1.293 albertel 395: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 396: $aggregate{$symb."\0".$part."\0users"} = 1;
397: }
398: }
1.285 raeburn 399: }
1.287 albertel 400: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 401: }
1.292 raeburn 402: if (keys (%aggregate) > 0) {
1.289 albertel 403: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 404: $cdomain,$cname);
405: }
406: }
1.289 albertel 407:
1.65 albertel 408: sub checkout_msg {
1.211 albertel 409: my %lt=&Apache::lonlocal::texthash(
410: 'resource'=>'The resource needs to be checked out',
411: '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.',
412: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
413: 'checkout'=>'Check out Exam for Viewing',
414: 'checkout?'=>'Check out Exam?');
1.159 albertel 415: return (<<ENDCHECKOUT);
1.211 albertel 416: <h2>$lt{'resource'}</h2>
417: <p>$lt{'id_expln'}</p>
418: <font color="red">
419: <p>$lt{'warning'}</p>
1.91 albertel 420: </font>
1.284 albertel 421: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.91 albertel 422: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 423: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 424: </form>
425: ENDCHECKOUT
426: }
427:
1.252 albertel 428: sub firstaccess_msg {
1.253 albertel 429: my ($time,$symb)=@_;
430: my ($map)=&Apache::lonnet::decode_symb($symb);
431: my $foldertitle=&Apache::lonnet::gettitle($map);
432: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.252 albertel 433: return (<<ENDCHECKOUT);
1.253 albertel 434: <h2>The resources in "$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 435: <form name="markaccess" method="POST" action="$env{'request.uri'}">
1.252 albertel 436: <input type="hidden" name="markaccess" value="yes" />
437: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
438: </form>
439: ENDCHECKOUT
440: }
441:
1.204 albertel 442: sub init_problem_globals {
443: my ($type)=@_;
444: #initialize globals
1.308 foxr 445: # For problems, we start out in part 0 (outside a <part> tag).
446: # and part 0 is used to describe the main body of the <problem>
447: #
1.204 albertel 448: if ($type eq 'problem') {
449: $Apache::inputtags::part='0';
450: @Apache::inputtags::partlist=('0');
1.266 albertel 451: $Apache::lonhomework::problemstatus=&get_problem_status('0');
452: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 453:
1.266 albertel 454: } elsif ($type eq 'library') {
1.204 albertel 455: $Apache::inputtags::part='';
456: @Apache::inputtags::partlist=();
457: $Apache::lonhomework::problemstatus='';
1.266 albertel 458: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 459:
1.304 albertel 460: } elsif ($type eq 'Task') {
461: $Apache::inputtags::part='0';
462: @Apache::inputtags::partlist=('0');
463: $Apache::lonhomework::problemstatus='';
464: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 465: }
466: @Apache::inputtags::responselist = ();
467: @Apache::inputtags::importlist = ();
468: @Apache::inputtags::previous=();
469: @Apache::inputtags::previous_version=();
470: $Apache::structuretags::printanswer='No';
471: @Apache::structuretags::whileconds=();
472: @Apache::structuretags::whilebody=();
473: @Apache::structuretags::whileline=();
474: $Apache::lonhomework::scantronmode=0;
475: undef($Apache::lonhomework::name);
476:
477: }
478:
479: sub reset_problem_globals {
480: my ($type)=@_;
481: undef(%Apache::lonhomework::history);
482: undef(%Apache::lonhomework::results);
483: undef($Apache::inputtags::part);
1.208 albertel 484: #don't undef this, lonhomework.pm takes care of this, we use this to
485: #detect if we try to do 2 problems in one file
486: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 487: undef($Apache::lonhomework::name);
488: }
489:
1.241 albertel 490: sub set_problem_state {
1.240 albertel 491: my ($part)=@_;
1.284 albertel 492: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 493: $Apache::lonhomework::history{"resource.$part.solved"}=
494: 'correct_by_student';
495: }
496: }
497:
1.241 albertel 498: sub get_problem_status {
499: my ($part)=@_;
1.267 albertel 500: my $problem_status;
1.284 albertel 501: if ($env{'request.state'} eq 'construct' &&
502: defined($env{'form.problemstatus'})) {
503: $problem_status=$env{'form.problemstatus'};
1.267 albertel 504: } else {
505: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
506: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 507: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 508: }
509: return $problem_status;
510: }
511:
1.9 albertel 512: sub start_problem {
1.159 albertel 513: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 514:
1.311 foxr 515: # We'll use the redirection to fix up printing of duedates.
1.312 albertel 516: &Apache::lonxml::startredirection();
1.311 foxr 517:
1.308 foxr 518: # Problems don't nest and we don't allow more than one <problem> in
519: # a .problem file.
520: #
1.184 albertel 521: if ( $Apache::inputtags::part ne '' ||
522: $Apache::lonhomework::parsing_a_problem) {
523: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
524: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
1.159 albertel 525: return '';
526: }
1.184 albertel 527:
528: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 529: &init_problem_globals('problem');
1.166 albertel 530:
1.284 albertel 531: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 532: $Apache::lonhomework::scantronmode=1;
533: }
1.161 albertel 534:
1.246 albertel 535: &initialize_storage();
1.159 albertel 536: if ($target ne 'analyze') {
537: if ($target eq 'web') {
538: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 539: }
1.284 albertel 540: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 541: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 542: if (($env{'request.state'} eq 'construct') &&
543: defined($env{'form.problemtype'})) {
544: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 545: }
1.240 albertel 546: &Apache::lonxml::debug("Found this to be of type :$Apache::ltonhomework::type:");
1.159 albertel 547: }
1.164 albertel 548: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 549: my $uri=$env{'request.uri'};
1.159 albertel 550: if ($uri=~/\.(\w+)$/) {
551: $Apache::lonhomework::type=$1;
552: &Apache::lonxml::debug("Using type of $1");
553: } else {
554: $Apache::lonhomework::type='problem';
555: &Apache::lonxml::debug("Using default type, problem, :$uri:");
556: }
1.87 albertel 557: }
1.301 albertel 558: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 559:
1.159 albertel 560: #added vars to the scripting enviroment
1.213 albertel 561: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 562: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 563: &Apache::run::run($expression,$safeeval);
1.159 albertel 564: my $status;
565: my $accessmsg;
566:
567: #should get back a <html> or the neccesary stuff to start XML/MathML
568: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
569: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.284 albertel 570: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 571:
572: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
573: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
574: $target eq 'tex') {
575: #handle exam checkout
576: if ($Apache::lonhomework::type eq 'exam') {
577: my $token=
578: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 579: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 580: $token=&Apache::lonxml::maketoken();
581: $Apache::lonhomework::history{"resource.0.outtoken"}=
582: $token;
583: }
584: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 585: }
1.284 albertel 586: if ($env{'form.markaccess'}) {
1.252 albertel 587: &Apache::lonnet::set_first_access('map');
588: }
1.159 albertel 589: #handle rand seed in construction space
590: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 591: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 592: if ($env{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 593: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
594: $rndseed.'" />'.
595: '<input type="submit" name="resetdata"
1.211 albertel 596: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 597: '<input type="hidden" name="username"
1.284 albertel 598: value="'.$env{'form.username'}.'" />';
599: if ($env{'user.adv'}) {
1.267 albertel 600: $form_tag_start.=
1.300 albertel 601: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 602: if (defined($env{'form.showallfoils'})) {
1.267 albertel 603: $form_tag_start.='checked="on"';
604: }
1.300 albertel 605: $form_tag_start.= ' />'.&mt(' Show All Foils').
606: '</label>';
1.267 albertel 607: }
608: $form_tag_start.='<hr />';
1.162 albertel 609: }
1.159 albertel 610: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
611: push (@Apache::inputtags::status,$status);
612: my $expression='$external::datestatus="'.$status.'";';
613: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
614: &Apache::run::run($expression,$safeeval);
615: &Apache::lonxml::debug("Got $status");
616: if (( $status eq 'CLOSED' ) ||
617: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 618: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 619: ( $status eq 'BANNED') ||
1.216 albertel 620: ( $status eq 'UNAVAILABLE') ||
621: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 622: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
623: if ( $target eq "web" ) {
624: $result.= $head_tag_start.'</head>';
625: my $msg=$body_tag_start;
626: if ($status eq 'UNAVAILABLE') {
1.245 albertel 627: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 628: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 629: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 630: }
1.216 albertel 631: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 632: $msg.='The problem '.$accessmsg;
633: } elsif ($status eq 'UNCHECKEDOUT') {
634: $msg.=&checkout_msg;
1.252 albertel 635: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 636: $msg.=&firstaccess_msg($accessmsg,$symb);
1.159 albertel 637: }
638: $result.=$msg.'<br />';
639: } elsif ($target eq 'tex') {
640: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
641: if ($status eq 'UNAVAILABLE') {
1.211 albertel 642: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 643: } else {
1.211 albertel 644: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 645: }
646: }
647: } elsif ($target eq 'web') {
648: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 649: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 650: $body_tag_start \n $form_tag_start".
1.227 albertel 651: '<input type="hidden" name="submitted" value="yes" />';
652: # create a page header and exit
1.284 albertel 653: if ($env{'request.state'} eq "construct") {
654: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 655: }
656: # if we are viewing someone else preserve that info
1.284 albertel 657: if (defined $env{'form.grade_symb'}) {
1.227 albertel 658: foreach my $field ('symb','courseid','domain','username') {
659: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 660: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 661: }
662: }
663: } elsif ($target eq 'tex') {
1.192 sakharuk 664: my $startminipage = '';
1.284 albertel 665: if (not $env{'form.problem_split'}=~/yes/) {
1.192 sakharuk 666: $startminipage = '\begin{minipage}{\textwidth}';
1.178 sakharuk 667: }
1.159 albertel 668: my $id = $Apache::inputtags::part;
669: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 670: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.223 sakharuk 671: my @packages = split /,/,$packages;
672: my $allow_print_points = 0;
673: foreach my $partial_key (@packages) {
1.230 albertel 674: if ($partial_key=~m/^part_0$/) {
1.223 sakharuk 675: $allow_print_points=1;
1.159 albertel 676: }
677: }
1.276 albertel 678: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
679: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1.302 albertel 680: if (lc($env{'course.'.$env{'request.course.id'}.
681: '.disableexampointprint'}) eq 'yes') {
682: $allow_print_points=0;
683: }
1.308 foxr 684: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
685: 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 ';
686: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
687: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
688:
1.312 albertel 689: # Figure out what the due date is and if we need to print
690: # it in the problem header. We have been logging the
691: # last due date written to file.
1.308 foxr 692:
693: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
694: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.159 albertel 695: my $temp_file;
1.284 albertel 696: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1.308 foxr 697:
1.312 albertel 698: # Figure out what the last printed due date is or set it
699: # to the epoch if no duedates have been printed.
1.308 foxr 700:
701: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1.159 albertel 702: if (-e $filename) {
703: $temp_file = Apache::File->new($filename);
1.308 foxr 704: my @due_file = <$temp_file>;
705: $due_file_content = $due_file[$#due_file];
706: chomp $due_file_content;
707: }
1.312 albertel 708:
709: # comparisons of the absolute times
1.309 foxr 710: if ($due_file_content != $duetime) {
1.159 albertel 711: $temp_file = Apache::File->new('>'.$filename);
1.308 foxr 712: print $temp_file "$duetime\n";
1.284 albertel 713: if (not $env{'request.symb'} =~ m/\.page_/) {
1.159 albertel 714: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1.304 albertel 715: $result .= $begin_doc.
716: '\textit{Due date: '.$duedate.'} '.$toc_line;
1.159 albertel 717: } else {
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: }
1.104 sakharuk 721: } else {
1.159 albertel 722: $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
1.104 sakharuk 723: }
1.101 sakharuk 724: } else {
1.284 albertel 725: if (not $env{'request.symb'} =~ m/\.page_/) {
1.304 albertel 726: $result .= $begin_doc.$toc_line;
1.159 albertel 727: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
728: } else {
729: $result .= '\vskip 1mm \\\\\\\\';
730: }
731: }
1.99 sakharuk 732: }
1.159 albertel 733: } elsif ($target eq 'edit') {
734: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
735: &problem_edit_header();
1.226 albertel 736: $Apache::lonxml::warnings_error_header=
737: &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 738: my $temp=&Apache::edit::insertlist($target,$token);
739: $result.=$temp;
740: } elsif ($target eq 'modified') {
741: $result=$token->[4];
742: $result.=&Apache::edit::handle_insert();
743: } else {
744: # page_start returned a starting result, delete it if we don't need it
745: $result = '';
1.99 sakharuk 746: }
1.159 albertel 747: return $result;
1.9 albertel 748: }
749:
750: sub end_problem {
1.159 albertel 751: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.312 albertel 752: my $result= &Apache::lonxml::endredirection(); # started in &start_problem
1.310 foxr 753:
1.159 albertel 754: my $status=$Apache::inputtags::status['-1'];
755: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
756: $target eq 'tex') {
1.249 albertel 757: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 758: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 759: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
760: &Apache::inputtags::grade;
761: } else {
762: # move any submission data to .hidden
763: &Apache::inputtags::hidealldata($Apache::inputtags::part);
764: }
1.159 albertel 765: } elsif ( ($target eq 'web' || $target eq 'tex') &&
766: $Apache::inputtags::part eq '0' &&
1.252 albertel 767: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 768: # if part is zero, no <part>s existed, so we need show the current
769: # grading status
770: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
771: $result.= $gradestatus;
772: }
773: if (
1.284 albertel 774: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 775: ($target eq 'answer') || ($target eq 'tex')
776: ) {
1.227 albertel 777: if ($target ne 'tex' &&
1.284 albertel 778: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 779: $result.="</form>";
780: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
1.159 albertel 781: }
782: if ($target eq 'web') {
1.281 albertel 783: $result.=&Apache::lonxml::xmlend().'</html>';
1.159 albertel 784: } elsif ($target eq 'tex') {
1.178 sakharuk 785: my $endminipage = '';
1.284 albertel 786: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 787: $endminipage = '\end{minipage}';
788: }
1.284 albertel 789: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 790: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 791: $result=~s/<\/html>//;
1.159 albertel 792: } else {
1.262 sakharuk 793: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 794: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 795: $result .= $endminipage.'\end{document} ';
796: } else {
797: $result .= '';
798: }
1.159 albertel 799: }
800: }
801: }
802: if ($target eq 'grade') {
803: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
804: &finalize_storage();
805: }
1.284 albertel 806: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
807: && $env{'form.answer_output_mode'} ne 'tex') {
1.294 albertel 808: $result.=&Apache::lonxml::xmlend().'</html>';
809: # normally we get it from above, but in CSTR
1.172 albertel 810: # we always show answer mode too.
1.159 albertel 811: }
812: } elsif ($target eq 'meta') {
813: if ($Apache::inputtags::part eq '0') {
1.179 albertel 814: @Apache::inputtags::response=();
1.159 albertel 815: $result=&Apache::response::mandatory_part_meta;
816: }
1.215 albertel 817: $result.=&Apache::response::meta_part_order();
1.258 albertel 818: $result.=&Apache::response::meta_response_order();
1.159 albertel 819: } elsif ($target eq 'edit') {
820: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 821: $result .= &problem_edit_footer();
1.159 albertel 822: }
1.155 albertel 823:
1.284 albertel 824: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 825: &Apache::inputtags::check_for_duplicate_ids();
826: }
1.204 albertel 827:
828: &reset_problem_globals('problem');
1.159 albertel 829:
830: return $result;
1.48 albertel 831: }
832:
1.108 albertel 833:
1.48 albertel 834: sub start_library {
1.159 albertel 835: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
836: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 837: if ($$tagstack[0] eq 'library') {
838: &init_problem_globals('library');
839: $Apache::lonhomework::type='problem';
840: }
1.159 albertel 841: if ($target eq 'edit') {
842: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
843: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
844: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
845: &problem_edit_header();
846: my $temp=&Apache::edit::insertlist($target,$token);
847: $result.=$temp;
848: } elsif ($target eq 'modified') {
849: $result=$token->[4];
850: $result.=&Apache::edit::handle_insert();
851: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 852: $env{'request.state'} eq "construct" ) {
1.159 albertel 853: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
854: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
855: my $name=&get_resource_name($parstack,$safeeval);
856: my $rndseed=&setup_rndseed($safeeval);
857: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 858: $body_tag_start \n $form_tag_start".
1.159 albertel 859: '<input type="hidden" name="submitted" value="yes" />';
860: $result.=&problem_web_to_edit_header($rndseed);
861: }
862: return $result;
1.48 albertel 863: }
864:
865: sub end_library {
1.159 albertel 866: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
867: my $result='';
868: if ($target eq 'edit') {
869: $result=&problem_edit_footer();
870: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 871: $env{'request.state'} eq "construct") {
1.280 albertel 872: $result.='</form>'.&Apache::loncommon::endbodytag().
873: &Apache::lonxml::xmlend();
1.159 albertel 874: }
1.204 albertel 875: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 876: return $result;
1.197 www 877: }
878:
879: sub start_definetag {
880: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
881:
882: my $result;
883:
884: my $name = $token->[2]->{'name'};
885: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
886: if ($name=~/^\//) {
887: $result=
888: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
889: } else {
890: $result=
891: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
892: }
893: $skip=~s/\</\<\;/gs;
894: $skip=~s/\>/\>\;/gs;
895: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
896: return $result;
897: }
898:
899: sub end_definetag {
900: return '';
1.1 albertel 901: }
902:
903: sub start_block {
1.201 albertel 904: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 905:
906: my $result;
1.1 albertel 907:
1.160 albertel 908: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 909: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 910: my $code = $token->[2]->{'condition'};
1.201 albertel 911: if (defined($code)) {
1.137 albertel 912: if (!$Apache::lonxml::default_homework_loaded) {
913: &Apache::lonxml::default_homework_load($safeeval);
914: }
1.131 albertel 915: $result = &Apache::run::run($code,$safeeval);
916: &Apache::lonxml::debug("block :$code: returned :$result:");
917: } else {
918: $result='1';
919: }
920: if ( ! $result ) {
1.201 albertel 921: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 922: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
923: }
924: $result='';
925: } elsif ($target eq 'edit') {
926: $result .=&Apache::edit::tag_start($target,$token);
927: $result .=&Apache::edit::text_arg('Test Condition:','condition',
928: $token,40);
929: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
930: } elsif ($target eq 'modified') {
931: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
932: $safeeval,'condition');
933: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 934: }
1.131 albertel 935: return $result;
1.1 albertel 936: }
937:
938: sub end_block {
1.167 www 939: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
940: my $result;
941: if ($target eq "edit") {
942: $result.= &Apache::edit::tag_end($target,$token,'');
943: }
944: return $result;
945: }
946:
947: sub start_languageblock {
1.201 albertel 948: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 949:
950: my $result;
951:
952: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
953: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 954: my $include = $token->[2]->{'include'};
955: my $exclude = $token->[2]->{'exclude'};
956: my %languages=&Apache::loncommon::display_languages();
957: $result='1';
958: if ($include) {
959: $result='';
960: foreach (split(/\,/,$include)) {
961: if ($languages{$_}) { $result='1'; }
962: }
963: }
964: if ($exclude) {
965: foreach (split(/\,/,$exclude)) {
966: if ($languages{$_}) { $result='0'; }
967: }
968: }
969: if ( ! $result ) {
970: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
971: $style);
972: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
973: }
974: $result='';
1.167 www 975: } elsif ($target eq 'edit') {
976: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 977: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 978: $token,40);
1.211 albertel 979: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 980: $token,40);
981: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
982: } elsif ($target eq 'modified') {
983: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 984: $safeeval,'include',
985: 'exclude');
1.167 www 986: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
987: }
988: return $result;
989: }
990:
991: sub end_languageblock {
1.170 www 992: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
993: my $result;
1.201 albertel 994: if ($target eq "edit") {
1.170 www 995: $result.= &Apache::edit::tag_end($target,$token,'');
996: }
997: return $result;
998: }
999:
1000: sub start_instructorcomment {
1.201 albertel 1001: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1002:
1003: my $result;
1004:
1005: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1006: $target eq 'tex' || $target eq 'analyze') {
1.284 albertel 1007: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1008: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1009: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1010: $parser,$style);
1.170 www 1011: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1012: }
1013: $result='';
1014: } elsif ($target eq 'edit') {
1015: $result .=&Apache::edit::tag_start($target,$token);
1016: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1017: }
1018: return $result;
1019: }
1020:
1021: sub end_instructorcomment {
1.159 albertel 1022: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1023: my $result;
1024: if ($target eq "edit") {
1025: $result.= &Apache::edit::tag_end($target,$token,'');
1026: }
1027: return $result;
1.4 tsai 1028: }
1029:
1030: sub start_while {
1.159 albertel 1031: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1032:
1.160 albertel 1033: my $result;
1.161 albertel 1034: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 1035: $target eq 'tex' || $target eq 'analyze') {
1036: my $code = $token->[2]->{'condition'};
1.4 tsai 1037:
1.160 albertel 1038: push( @Apache::structuretags::whileconds, $code);
1039: if (!$Apache::lonxml::default_homework_loaded) {
1040: &Apache::lonxml::default_homework_load($safeeval);
1041: }
1042: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 1043: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 1044: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1045: push( @Apache::structuretags::whileline, $token->[5]);
1046: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1047: if ( $result ) {
1048: &Apache::lonxml::newparser($parser,\$bodytext);
1049: }
1050: } elsif ($target eq 'edit') {
1051: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1052: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1053: $token,40);
1054: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1055: } elsif ($target eq 'modified') {
1056: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1057: $safeeval,'condition');
1058: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1059: }
1.160 albertel 1060: return $result;
1.4 tsai 1061: }
1062:
1063: sub end_while {
1.159 albertel 1064: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1065: my $result;
1066:
1067: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1068: $target eq 'tex' || $target eq 'analyze') {
1069: my $code = pop(@Apache::structuretags::whileconds);
1070: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1071: my $line = pop(@Apache::structuretags::whileline);
1072: my $return = &Apache::run::run($code,$safeeval);
1073: my $starttime=time;
1074: my $error=0;
1075: while ($return) {
1076: if (time-$starttime >
1077: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1078: #$return = 0; $error=1; next;
1.161 albertel 1079: }
1080: $result.=&Apache::scripttag::xmlparse($bodytext);
1081: $return = &Apache::run::run($code,$safeeval);
1082: }
1083: if ($error) {
1.270 albertel 1084: &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 1085: }
1086: } elsif ($target eq "edit") {
1087: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1088: }
1.160 albertel 1089: return $result;
1.1 albertel 1090: }
1.6 tsai 1091:
1.160 albertel 1092: # <randomlist show="1">
1.6 tsai 1093: # <tag1>..</tag1>
1094: # <tag2>..</tag2>
1095: # <tag3>..</tag3>
1.160 albertel 1096: # ...
1.6 tsai 1097: # </randomlist>
1098: sub start_randomlist {
1.159 albertel 1099: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1100: my $result;
1101: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1102: $target eq 'tex' || $target eq 'analyze') {
1103: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1104: my $b_parser= HTML::LCParser->new(\$body);
1105: $b_parser->xml_mode(1);
1106: $b_parser->marked_sections(1);
1.159 albertel 1107: my $b_tok;
1108: my @randomlist;
1109: my $list_item;
1110: while($b_tok = $b_parser->get_token() ) {
1111: if($b_tok->[0] eq 'S') { # start tag
1112: # get content of the tag until matching end tag
1113: # get all text upto the matching tag
1114: # and push the content into @randomlist
1115: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1116: $b_parser);
1117: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1118: push(@randomlist,$list_item);
1119: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1120: # $list_item</b>";
1121: }
1122: if($b_tok->[0] eq 'T') { # text
1123: # what to do with text in between tags?
1124: # print "<b>TEXT $b_tok->[1]</b><br />";
1125: }
1126: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1127: # print "<b>END-TAG $b_tok->[1]</b><br />";
1128: # }
1129: }
1.303 albertel 1130: if (@randomlist) {
1131: my @idx_arr = (0 .. $#randomlist);
1132: &Apache::structuretags::shuffle(\@idx_arr);
1133: my $bodytext = '';
1134: my $show=$#randomlist;
1135: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1136: $showarg--;
1137: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1138: for(0 .. $show) {
1139: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1140: }
1141: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1142: }
1143: } elsif ($target eq 'edit' ) {
1144: $result .=&Apache::edit::tag_start($target,$token);
1145: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1146: $token,5);
1147: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1148: } elsif ($target eq 'modified' ) {
1149: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1150: $safeeval,'show');
1151: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1152: }
1153: return $result;
1.7 tsai 1154: }
1155:
1156: sub shuffle {
1157: my $a=shift;
1158: my $i;
1.303 albertel 1159: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1160: &Apache::response::pushrandomnumber();
1.159 albertel 1161: for($i=@$a;--$i;) {
1162: my $j=int(&Math::Random::random_uniform() * ($i+1));
1163: next if $i == $j;
1164: @$a[$i,$j] = @$a[$j,$i];
1165: }
1.251 albertel 1166: &Apache::response::poprandomnumber();
1.7 tsai 1167: }
1.6 tsai 1168: }
1169:
1170: sub end_randomlist {
1.159 albertel 1171: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1172: my $result;
1173: if ($target eq 'edit' ) {
1174: $result=&Apache::edit::tag_end($target,$token,
1175: 'End Randomly Parsed Block');
1176: }
1177: return $result;
1.6 tsai 1178: }
1179:
1.283 albertel 1180: sub ordered_show_check {
1181: my $last_part=$Apache::inputtags::partlist[-2];
1182: my $in_order=
1183: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1184: my $in_order_show=1;
1185: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1186: $in_order_show=&Apache::response::check_status($last_part);
1187: }
1188: return $in_order_show;
1189: }
1190:
1.11 albertel 1191: sub start_part {
1.159 albertel 1192: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.312 albertel 1193: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1194: # duedates.
1.159 albertel 1195: my $result='';
1196: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1197: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1198: $Apache::inputtags::part=$id;
1.177 albertel 1199: push(@Apache::inputtags::partlist,$id);
1200: @Apache::inputtags::response=();
1.159 albertel 1201: @Apache::inputtags::previous=();
1202: @Apache::inputtags::previous_version=();
1.241 albertel 1203: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1204: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1205: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1206: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1207: my $in_order_show=&ordered_show_check();
1.214 albertel 1208: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1209: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1210: &Apache::run::run($expression,$safeeval);
1.159 albertel 1211:
1212: if ($target eq 'meta') {
1.224 www 1213: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1214: return &Apache::response::mandatory_part_meta.
1215: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1216: } elsif ($target eq 'web' || $target eq 'grade' ||
1217: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1218: if ($hidden || !$in_order_show) {
1.159 albertel 1219: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1220: } else {
1221: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1222: push (@Apache::inputtags::status,$status);
1223: my $expression='$external::datestatus="'.$status.'";';
1224: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1225: &Apache::run::run($expression,$safeeval);
1.284 albertel 1226: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1227: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1228: }
1.216 albertel 1229: if (( $status eq 'CLOSED' ) ||
1230: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1231: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1232: ( $status eq 'BANNED') ||
1233: ( $status eq 'UNAVAILABLE') ||
1234: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 1235: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1236: if ( $target eq "web" ) {
1.211 albertel 1237: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1238: } elsif ( $target eq 'tex' ) {
1.284 albertel 1239: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1240: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1241: } else {
1.211 albertel 1242: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1243: }
1.159 albertel 1244: }
1245: } else {
1246: if ($target eq 'tex') {
1.284 albertel 1247: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1248: if ($$tagstack[-2] eq 'td') {
1249: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1250: } else {
1251: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1252: }
1.195 sakharuk 1253: }
1.159 albertel 1254: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1255: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1256: my @allkeys = split /,/,$allkeys;
1257: my $allow_print_points = 0;
1258: foreach my $partial_key (@allkeys) {
1.230 albertel 1259: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1260: if ($1 ne '0') {$allow_print_points=1;}
1261: }
1262: }
1.275 albertel 1263: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1264: if (defined($maxtries) && $maxtries < 0) {
1265: $allow_print_points=0;
1266: }
1.302 albertel 1267: if (lc($env{'course.'.$env{'request.course.id'}.
1268: '.disableexampointprint'}) eq 'yes') {
1269: $allow_print_points=0;
1270: }
1.222 sakharuk 1271: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1272: } elsif ($target eq 'web') {
1273: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1274: }
1275: }
1276: }
1277: } elsif ($target eq 'edit') {
1278: $result.=&Apache::edit::tag_start($target,$token);
1279: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1280: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1281: ' '.
1282: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1283: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1284: } elsif ($target eq 'modified') {
1285: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1286: $safeeval,'id','display');
1.159 albertel 1287: if ($constructtag) {
1.225 albertel 1288: #limiting ids to only letters numbers, and space
1.224 www 1289: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1290: $result = &Apache::edit::rebuild_tag($token);
1291: $result.=&Apache::edit::handle_insert();
1292: }
1293: }
1294: return $result;
1.11 albertel 1295: }
1296:
1297: sub end_part {
1.159 albertel 1298: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1299: &Apache::lonxml::debug("in end_part $target ");
1300: my $status=$Apache::inputtags::status['-1'];
1301: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1302: my $in_order_show=&ordered_show_check();
1.312 albertel 1303: my $result= &Apache::lonxml::endredirection(); # started in &start_part
1304: if ($target eq 'grade') {
1.249 albertel 1305: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1306: !$hidden && $in_order_show) {
1.311 foxr 1307: $result.=&Apache::inputtags::grade;
1.249 albertel 1308: } else {
1309: # move any submission data to .hidden
1310: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1311: }
1.283 albertel 1312: } elsif (($target eq 'web' || $target eq 'tex') &&
1313: !$hidden && $in_order_show) {
1.159 albertel 1314: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1315: $target);
1.212 albertel 1316: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1317: $gradestatus='';
1318: }
1.311 foxr 1319: $result.=$gradestatus;
1.265 sakharuk 1320: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1321: } elsif ($target eq 'edit') {
1.311 foxr 1322: $result.=&Apache::edit::end_table();
1.159 albertel 1323: }
1324: pop @Apache::inputtags::status;
1325: $Apache::inputtags::part='';
1.295 albertel 1326: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1327: return $result;
1.11 albertel 1328: }
1.1 albertel 1329:
1.25 albertel 1330: sub start_preduedate {
1.159 albertel 1331: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1332: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1.236 albertel 1333: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1334: if (!$Apache::lonhomework::scantronmode &&
1335: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1336: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1337: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.159 albertel 1338: &Apache::lonxml::get_all_text("/preduedate",$parser);
1339: }
1.24 albertel 1340: }
1.159 albertel 1341: return '';
1.24 albertel 1342: }
1343:
1.25 albertel 1344: sub end_preduedate {
1.159 albertel 1345: return '';
1.24 albertel 1346: }
1347:
1.25 albertel 1348: sub start_postanswerdate {
1.159 albertel 1349: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.234 albertel 1350: if ($target eq 'web' || $target eq 'grade') {
1.300 albertel 1351: if ($Apache::lonhomework::scantronmode ||
1352: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.159 albertel 1353: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1354: }
1355: } elsif ($target eq 'tex') {
1.234 albertel 1356: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1.159 albertel 1357: }
1358: return '';
1.24 albertel 1359: }
1360:
1.25 albertel 1361: sub end_postanswerdate {
1.159 albertel 1362: return '';
1.24 albertel 1363: }
1364:
1.25 albertel 1365: sub start_notsolved {
1.159 albertel 1366: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1367: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1368: $target eq 'tex') {
1369: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1370: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1371: if ($gradestatus =~ /^correct/ &&
1372: &Apache::response::show_answer()) {
1.159 albertel 1373: &Apache::lonxml::debug("skipping");
1374: &Apache::lonxml::get_all_text("/notsolved",$parser);
1375: }
1.24 albertel 1376: }
1.159 albertel 1377: return '';
1.24 albertel 1378: }
1379:
1.25 albertel 1380: sub end_notsolved {
1.159 albertel 1381: return '';
1.24 albertel 1382: }
1383:
1384: sub start_solved {
1.159 albertel 1385: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1386: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1387: $target eq 'tex') {
1388: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1389: if ($gradestatus !~ /^correct/ ||
1390: !&Apache::response::show_answer()) {
1.159 albertel 1391: &Apache::lonxml::get_all_text("/solved",$parser);
1392: }
1.24 albertel 1393: }
1.159 albertel 1394: return '';
1.24 albertel 1395: }
1396:
1397: sub end_solved {
1.248 albertel 1398: return '';
1399: }
1400:
1401: sub start_problemtype {
1402: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1403: my $result;
1404: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1405: $target eq 'tex' || $target eq 'analyze') {
1406: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1407: if (!defined($mode)) { $mode='show'; }
1408: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1409: my $found=0;
1410: foreach my $type (split(',',$for)) {
1411: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1412: }
1413: if ($mode eq 'show' && !$found) {
1414: &Apache::lonxml::get_all_text("/problemtype",$parser);
1415: }
1416: if ($mode eq 'hide' && $found) {
1417: &Apache::lonxml::get_all_text("/problemtype",$parser);
1418: }
1419: } elsif ($target eq 'edit') {
1420: $result .=&Apache::edit::tag_start($target,$token);
1421: $result.=&Apache::edit::select_arg('Mode:','mode',
1422: [['show','Show'],
1423: ['hide','Hide']]
1424: ,$token);
1425: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1426: [ ['exam','Exam/Quiz Problem'],
1427: ['survey','Survey'],
1428: ['problem','Homework Problem'] ]
1429: ,$token);
1430: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1431: } elsif ($target eq 'modified') {
1432: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1433: $safeeval,'mode','for');
1434: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1435: }
1436: return $result;
1437: }
1438:
1439: sub end_problemtype {
1.159 albertel 1440: return '';
1.24 albertel 1441: }
1.34 albertel 1442:
1443: sub start_startouttext {
1.159 albertel 1444: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1445: my @result=(''.'');
1446: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1447: return (@result);
1.34 albertel 1448: }
1.159 albertel 1449:
1.34 albertel 1450: sub end_startouttext {
1.159 albertel 1451: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1452: my $result='';
1453: my $text='';
1454:
1455: if ($target eq 'edit') {
1456: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1.211 albertel 1457: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1458: <td>".&mt('Delete:').
1.159 albertel 1459: &Apache::edit::deletelist($target,$token)
1460: ."</td>
1.42 albertel 1461: <td>".
1.159 albertel 1462: &Apache::edit::insertlist($target,$token).
1463: &Apache::edit::end_row().
1464: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1465: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1466: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1467: }
1468: if ($target eq 'modified') {
1.219 albertel 1469: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1470: }
1471: if ($target eq 'tex') {
1472: $result .= '\noindent ';
1473: }
1474: return $result;
1.34 albertel 1475: }
1.159 albertel 1476:
1.34 albertel 1477: sub start_endouttext {
1.159 albertel 1478: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1479: my $result='';
1480: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1481: if ($target eq "modified") {
1482: $result='<endouttext />'.
1483: &Apache::edit::handle_insertafter('startouttext'); }
1484: return $result;
1.34 albertel 1485: }
1.159 albertel 1486:
1.34 albertel 1487: sub end_endouttext {
1.159 albertel 1488: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1489: my @result=('','');
1490: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1491: return (@result);
1.34 albertel 1492: }
1.159 albertel 1493:
1.45 albertel 1494: sub delete_startouttext {
1.159 albertel 1495: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1496: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1497: my $text=$$parser['-1']->get_text("/endouttext");
1498: my $ntoken=$$parser['-1']->get_token();
1499: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1500: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1501: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1502: # they did the last time round
1503: &Apache::lonxml::increasedepth($ntoken);
1504: &Apache::lonxml::decreasedepth($ntoken);
1505: return 1;
1.193 www 1506: }
1507:
1508: sub start_simpleeditbutton {
1509: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1510: my $result='';
1.284 albertel 1511: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1512: ($target eq 'web') &&
1.284 albertel 1513: (&Apache::lonnet::allowed('srm',$env{'request.course.id'}))) {
1514: my $url=$env{'request.noversionuri'};
1.193 www 1515: $url=~s/\?.*$//;
1.278 albertel 1516: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1517: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1518: '<a href="'.$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 1519: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1520: }
1521: return $result;
1522: }
1523:
1524: sub end_simpleeditbutton {
1525: return '';
1.45 albertel 1526: }
1.34 albertel 1527:
1.1 albertel 1528: 1;
1529: __END__
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