Annotation of loncom/homework/structuretags.pm, revision 1.306
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.306 ! albertel 4: # $Id: structuretags.pm,v 1.305 2005/10/17 16:06:32 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)) {
195: $rndseed=join(',',&Math::Random::random_seed_from_phrase($rndseed));
196: }
1.247 albertel 197: if ($Apache::lonhomework::history{'resource.CODE'}) {
198: $rndseed=&Apache::lonnet::rndseed();
199: }
1.221 albertel 200: if ($safeeval) {
201: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 202: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 203: }
1.159 albertel 204: }
205: return $rndseed;
1.105 albertel 206: }
207:
1.268 albertel 208: sub remember_problem_state {
209: return '
1.284 albertel 210: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
211: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
212: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 213: }
214:
1.105 albertel 215: sub problem_edit_header {
1.268 albertel 216: return '<input type="hidden" name="submitted" value="edit" />'.
217: &Apache::structuretags::remember_problem_state().'
1.210 albertel 218: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 219: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
220: <input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
221: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
222: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
223: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.260 albertel 224: &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
225: .'</td></tr></table>'.
1.282 albertel 226: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 227: }
228:
229: sub problem_edit_footer {
1.210 albertel 230: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 231: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
232: &Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).
1.280 albertel 233: "\n</form>\n".&Apache::loncommon::endbodytag()."\n</html>";
1.105 albertel 234: }
235:
1.235 albertel 236: sub option {
237: my ($value,$name) = @_;
238: my $result ="<option value='".$value."' ";
1.284 albertel 239: if ($env{'form.'.$name} eq $value) {
1.235 albertel 240: $result.=" selected='on' ";
241: }
242: $result.='>';
243: return $result;
244: }
245:
1.105 albertel 246: sub problem_web_to_edit_header {
1.159 albertel 247: my ($rndseed)=@_;
1.210 albertel 248: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />
1.243 matthew 249: <input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />
250: <input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
251: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
252: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 253: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 254: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 255: $rndseed.'"
1.270 albertel 256: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 257: <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 258: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.228 www 259: $result.= ' />'.&mt(' Show All Foils').
260: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.281 albertel 261: '</label><hr />';
1.235 albertel 262: $result.="
263: <nobr>
264: Problem Status:
265: <select name='problemstate'>
1.270 albertel 266: <option value=''></option>
1.235 albertel 267: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
268: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
269: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
270: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
271: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
272: </select>
273: </nobr>
274: <nobr>
275: Problem Type:
276: <select name='problemtype'>
1.270 albertel 277: <option value=''></option>
1.242 albertel 278: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
279: ".&option('problem','problemtype').&mt("Homework problem")."</option>
280: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 281: </select>
282: </nobr>
283: <nobr>
284: Feedback Mode:
285: <select name='problemstatus'>
286: <option value=''></option>
1.242 albertel 287: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
288: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 289: </select>
290: </nobr>
1.242 albertel 291: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 292: <hr />";
1.284 albertel 293: my $numtoanalyze=$env{'form.numtoanalyze'};
1.176 albertel 294: if (!$numtoanalyze) { $numtoanalyze=20; }
1.210 albertel 295: $result.= '<input type="submit" name="problemmode" value='.
296: &mt('"Calculate answers').'" /> for
1.136 albertel 297: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 298: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
299: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 300: '',undef,undef,300).
1.210 albertel 301: '<hr />';
1.159 albertel 302: return $result;
1.48 albertel 303: }
304:
1.65 albertel 305: sub initialize_storage {
1.159 albertel 306: %Apache::lonhomework::results=();
1.162 albertel 307: %Apache::lonhomework::history=();
1.159 albertel 308: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.284 albertel 309: if ($env{'request.state'} eq 'construct' || $symb eq '') {
1.159 albertel 310: %Apache::lonhomework::history=
1.284 albertel 311: &Apache::lonnet::tmprestore($env{'request.uri'},'',$domain,$name);
1.159 albertel 312: my ($temp)=keys %Apache::lonhomework::history ;
313: &Apache::lonxml::debug("Return message of $temp");
314: } else {
315: %Apache::lonhomework::history=
316: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
317: }
318: #ignore error conditions
1.67 albertel 319: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 320: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 321: }
322:
323: # -------------------------------------------------------------finalize_storage
324: # Stores away the result has to a student's environment
325: # checks form.grade_ for specific values, other wises stores
326: # to the running users environment
1.285 raeburn 327: # Will increment totals for attempts, students, and corrects
328: # if running user has student role.
1.65 albertel 329: sub finalize_storage {
1.159 albertel 330: my $result;
1.289 albertel 331: if (%Apache::lonhomework::results) {
1.159 albertel 332: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.284 albertel 333: if ($env{'request.state'} eq 'construct' || $symb eq '') {
334: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 335: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.284 albertel 336: $env{'request.uri'},'',$domain,$name);
1.159 albertel 337: &Apache::lonxml::debug('Construct Store return message:'.$result);
338: } else {
339: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
340: $symb,$courseid,$domain,$name);
341: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 342: if ($env{'request.role'} =~/^st/) {
343: &store_aggregates($symb,$courseid);
344: }
1.159 albertel 345: }
1.67 albertel 346: }
1.159 albertel 347: return $result;
1.65 albertel 348: }
1.289 albertel 349: use Data::Dumper;
1.65 albertel 350:
1.285 raeburn 351: # -------------------------------------------------------------store_aggregates
352: # Sends hash of values to be incremented in nohist_resourcetracker.db
353: # for the course. Increments total number of attempts, unique students
354: # and corrects for each part for an instance of a problem, as appropriate.
355: sub store_aggregates {
356: my ($symb,$courseid) = @_;
1.286 albertel 357: my %aggregate;
358: my @parts;
1.288 albertel 359: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
360: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 361: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 362: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 363: push(@parts, $1);
1.285 raeburn 364: }
365: }
1.286 albertel 366: foreach my $part (@parts) {
367: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
368: eq 'APPROX_ANS' ||
369: $Apache::lonhomework::results{'resource.'.$part.'.award'}
370: eq 'EXACT_ANS') {
1.287 albertel 371: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 372: }
1.286 albertel 373: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 374: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 375: } else {
1.293 albertel 376: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 377: if ($last_reset) {
1.293 albertel 378: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 379: $aggregate{$symb."\0".$part."\0users"} = 1;
380: }
381: }
1.285 raeburn 382: }
1.287 albertel 383: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 384: }
1.292 raeburn 385: if (keys (%aggregate) > 0) {
1.289 albertel 386: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 387: $cdomain,$cname);
388: }
389: }
1.289 albertel 390:
1.65 albertel 391: sub checkout_msg {
1.211 albertel 392: my %lt=&Apache::lonlocal::texthash(
393: 'resource'=>'The resource needs to be checked out',
394: 'id_expln'=>'As a resource gets checked out, a unique timestamped ID is given to it, and a permanent record is left in the system.',
395: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
396: 'checkout'=>'Check out Exam for Viewing',
397: 'checkout?'=>'Check out Exam?');
1.159 albertel 398: return (<<ENDCHECKOUT);
1.211 albertel 399: <h2>$lt{'resource'}</h2>
400: <p>$lt{'id_expln'}</p>
401: <font color="red">
402: <p>$lt{'warning'}</p>
1.91 albertel 403: </font>
1.284 albertel 404: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.91 albertel 405: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 406: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 407: </form>
408: ENDCHECKOUT
409: }
410:
1.252 albertel 411: sub firstaccess_msg {
1.253 albertel 412: my ($time,$symb)=@_;
413: my ($map)=&Apache::lonnet::decode_symb($symb);
414: my $foldertitle=&Apache::lonnet::gettitle($map);
415: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.252 albertel 416: return (<<ENDCHECKOUT);
1.253 albertel 417: <h2>The resources in "$foldertitle" are open for a limited time. Once you click the 'Show Resource' button below you have $time to complete all resources "$foldertitle".</h2>
1.284 albertel 418: <form name="markaccess" method="POST" action="$env{'request.uri'}">
1.252 albertel 419: <input type="hidden" name="markaccess" value="yes" />
420: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
421: </form>
422: ENDCHECKOUT
423: }
424:
1.204 albertel 425: sub init_problem_globals {
426: my ($type)=@_;
427: #initialize globals
428: if ($type eq 'problem') {
429: $Apache::inputtags::part='0';
430: @Apache::inputtags::partlist=('0');
1.266 albertel 431: $Apache::lonhomework::problemstatus=&get_problem_status('0');
432: $Apache::lonhomework::ignore_response_errors=0;
433: } elsif ($type eq 'library') {
1.204 albertel 434: $Apache::inputtags::part='';
435: @Apache::inputtags::partlist=();
436: $Apache::lonhomework::problemstatus='';
1.266 albertel 437: $Apache::lonhomework::ignore_response_errors=1;
1.304 albertel 438: } elsif ($type eq 'Task') {
439: $Apache::inputtags::part='0';
440: @Apache::inputtags::partlist=('0');
441: $Apache::lonhomework::problemstatus='';
442: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 443: }
444: @Apache::inputtags::responselist = ();
445: @Apache::inputtags::importlist = ();
446: @Apache::inputtags::previous=();
447: @Apache::inputtags::previous_version=();
448: $Apache::structuretags::printanswer='No';
449: @Apache::structuretags::whileconds=();
450: @Apache::structuretags::whilebody=();
451: @Apache::structuretags::whileline=();
452: $Apache::lonhomework::scantronmode=0;
453: undef($Apache::lonhomework::name);
454:
455: }
456:
457: sub reset_problem_globals {
458: my ($type)=@_;
459: undef(%Apache::lonhomework::history);
460: undef(%Apache::lonhomework::results);
461: undef($Apache::inputtags::part);
1.208 albertel 462: #don't undef this, lonhomework.pm takes care of this, we use this to
463: #detect if we try to do 2 problems in one file
464: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 465: undef($Apache::lonhomework::name);
466: }
467:
1.241 albertel 468: sub set_problem_state {
1.240 albertel 469: my ($part)=@_;
1.284 albertel 470: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 471: $Apache::lonhomework::history{"resource.$part.solved"}=
472: 'correct_by_student';
473: }
474: }
475:
1.241 albertel 476: sub get_problem_status {
477: my ($part)=@_;
1.267 albertel 478: my $problem_status;
1.284 albertel 479: if ($env{'request.state'} eq 'construct' &&
480: defined($env{'form.problemstatus'})) {
481: $problem_status=$env{'form.problemstatus'};
1.267 albertel 482: } else {
483: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
484: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 485: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 486: }
487: return $problem_status;
488: }
489:
1.9 albertel 490: sub start_problem {
1.159 albertel 491: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 492:
1.184 albertel 493: if ( $Apache::inputtags::part ne '' ||
494: $Apache::lonhomework::parsing_a_problem) {
495: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
496: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
1.159 albertel 497: return '';
498: }
1.184 albertel 499:
500: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 501: &init_problem_globals('problem');
1.166 albertel 502:
1.284 albertel 503: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 504: $Apache::lonhomework::scantronmode=1;
505: }
1.161 albertel 506:
1.246 albertel 507: &initialize_storage();
1.159 albertel 508: if ($target ne 'analyze') {
509: if ($target eq 'web') {
510: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 511: }
1.284 albertel 512: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 513: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 514: if (($env{'request.state'} eq 'construct') &&
515: defined($env{'form.problemtype'})) {
516: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 517: }
1.240 albertel 518: &Apache::lonxml::debug("Found this to be of type :$Apache::ltonhomework::type:");
1.159 albertel 519: }
1.164 albertel 520: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 521: my $uri=$env{'request.uri'};
1.159 albertel 522: if ($uri=~/\.(\w+)$/) {
523: $Apache::lonhomework::type=$1;
524: &Apache::lonxml::debug("Using type of $1");
525: } else {
526: $Apache::lonhomework::type='problem';
527: &Apache::lonxml::debug("Using default type, problem, :$uri:");
528: }
1.87 albertel 529: }
1.301 albertel 530: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 531:
1.159 albertel 532: #added vars to the scripting enviroment
1.213 albertel 533: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 534: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 535: &Apache::run::run($expression,$safeeval);
1.159 albertel 536: my $status;
537: my $accessmsg;
538:
539: #should get back a <html> or the neccesary stuff to start XML/MathML
540: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
541: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.284 albertel 542: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 543:
544: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
545: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
546: $target eq 'tex') {
547: #handle exam checkout
548: if ($Apache::lonhomework::type eq 'exam') {
549: my $token=
550: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 551: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 552: $token=&Apache::lonxml::maketoken();
553: $Apache::lonhomework::history{"resource.0.outtoken"}=
554: $token;
555: }
556: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 557: }
1.284 albertel 558: if ($env{'form.markaccess'}) {
1.252 albertel 559: &Apache::lonnet::set_first_access('map');
560: }
1.159 albertel 561: #handle rand seed in construction space
562: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 563: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 564: if ($env{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 565: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
566: $rndseed.'" />'.
567: '<input type="submit" name="resetdata"
1.211 albertel 568: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 569: '<input type="hidden" name="username"
1.284 albertel 570: value="'.$env{'form.username'}.'" />';
571: if ($env{'user.adv'}) {
1.267 albertel 572: $form_tag_start.=
1.300 albertel 573: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 574: if (defined($env{'form.showallfoils'})) {
1.267 albertel 575: $form_tag_start.='checked="on"';
576: }
1.300 albertel 577: $form_tag_start.= ' />'.&mt(' Show All Foils').
578: '</label>';
1.267 albertel 579: }
580: $form_tag_start.='<hr />';
1.162 albertel 581: }
1.159 albertel 582: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
583: push (@Apache::inputtags::status,$status);
584: my $expression='$external::datestatus="'.$status.'";';
585: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
586: &Apache::run::run($expression,$safeeval);
587: &Apache::lonxml::debug("Got $status");
588: if (( $status eq 'CLOSED' ) ||
589: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 590: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 591: ( $status eq 'BANNED') ||
1.216 albertel 592: ( $status eq 'UNAVAILABLE') ||
593: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 594: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
595: if ( $target eq "web" ) {
596: $result.= $head_tag_start.'</head>';
597: my $msg=$body_tag_start;
598: if ($status eq 'UNAVAILABLE') {
1.245 albertel 599: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 600: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 601: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 602: }
1.216 albertel 603: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 604: $msg.='The problem '.$accessmsg;
605: } elsif ($status eq 'UNCHECKEDOUT') {
606: $msg.=&checkout_msg;
1.252 albertel 607: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 608: $msg.=&firstaccess_msg($accessmsg,$symb);
1.159 albertel 609: }
610: $result.=$msg.'<br />';
611: } elsif ($target eq 'tex') {
612: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
613: if ($status eq 'UNAVAILABLE') {
1.211 albertel 614: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 615: } else {
1.211 albertel 616: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 617: }
618: }
619: } elsif ($target eq 'web') {
620: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 621: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 622: $body_tag_start \n $form_tag_start".
1.227 albertel 623: '<input type="hidden" name="submitted" value="yes" />';
624: # create a page header and exit
1.284 albertel 625: if ($env{'request.state'} eq "construct") {
626: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 627: }
628: # if we are viewing someone else preserve that info
1.284 albertel 629: if (defined $env{'form.grade_symb'}) {
1.227 albertel 630: foreach my $field ('symb','courseid','domain','username') {
631: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 632: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 633: }
634: }
635: } elsif ($target eq 'tex') {
1.192 sakharuk 636: my $startminipage = '';
1.284 albertel 637: if (not $env{'form.problem_split'}=~/yes/) {
1.192 sakharuk 638: $startminipage = '\begin{minipage}{\textwidth}';
1.178 sakharuk 639: }
1.159 albertel 640: my $id = $Apache::inputtags::part;
641: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 642: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.223 sakharuk 643: my @packages = split /,/,$packages;
644: my $allow_print_points = 0;
645: foreach my $partial_key (@packages) {
1.230 albertel 646: if ($partial_key=~m/^part_0$/) {
1.223 sakharuk 647: $allow_print_points=1;
1.159 albertel 648: }
649: }
1.276 albertel 650: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
651: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1.302 albertel 652: if (lc($env{'course.'.$env{'request.course.id'}.
653: '.disableexampointprint'}) eq 'yes') {
654: $allow_print_points=0;
655: }
1.159 albertel 656: my $duedate = &Apache::lonnet::EXT("resource.$id.duedate");
657: $duedate = POSIX::strftime("%c",localtime($duedate));
658: my $temp_file;
1.284 albertel 659: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1.159 albertel 660: if (-e $filename) {
661: $temp_file = Apache::File->new($filename);
662: } else {
663: $temp_file = Apache::File->new('>>'.$filename);
664: }
665: my @due_file_content = <$temp_file>;
666: my $due_file_content = $due_file_content[$#due_file_content];
667: chomp $due_file_content;
1.257 sakharuk 668: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.304 albertel 669: 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 ';
670: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
671: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1.159 albertel 672: if ($due_file_content ne $duedate) {
673: $temp_file = Apache::File->new('>'.$filename);
674: print $temp_file "$duedate\n";
1.284 albertel 675: if (not $env{'request.symb'} =~ m/\.page_/) {
1.159 albertel 676: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1.304 albertel 677: $result .= $begin_doc.
678: '\textit{Due date: '.$duedate.'} '.$toc_line;
1.159 albertel 679: } else {
1.304 albertel 680: $result .= $begin_doc.$toc_line;
1.159 albertel 681: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
682: }
1.104 sakharuk 683: } else {
1.159 albertel 684: $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
1.104 sakharuk 685: }
1.101 sakharuk 686: } else {
1.284 albertel 687: if (not $env{'request.symb'} =~ m/\.page_/) {
1.304 albertel 688: $result .= $begin_doc.$toc_line;
1.159 albertel 689: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
690: } else {
691: $result .= '\vskip 1mm \\\\\\\\';
692: }
693: }
1.99 sakharuk 694: }
1.159 albertel 695: } elsif ($target eq 'edit') {
696: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
697: &problem_edit_header();
1.226 albertel 698: $Apache::lonxml::warnings_error_header=
699: &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 700: my $temp=&Apache::edit::insertlist($target,$token);
701: $result.=$temp;
702: } elsif ($target eq 'modified') {
703: $result=$token->[4];
704: $result.=&Apache::edit::handle_insert();
705: } else {
706: # page_start returned a starting result, delete it if we don't need it
707: $result = '';
1.99 sakharuk 708: }
1.159 albertel 709: return $result;
1.9 albertel 710: }
711:
712: sub end_problem {
1.159 albertel 713: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
714: my $result='';
715: my $status=$Apache::inputtags::status['-1'];
716: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
717: $target eq 'tex') {
1.249 albertel 718: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 719: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 720: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
721: &Apache::inputtags::grade;
722: } else {
723: # move any submission data to .hidden
724: &Apache::inputtags::hidealldata($Apache::inputtags::part);
725: }
1.159 albertel 726: } elsif ( ($target eq 'web' || $target eq 'tex') &&
727: $Apache::inputtags::part eq '0' &&
1.252 albertel 728: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 729: # if part is zero, no <part>s existed, so we need show the current
730: # grading status
731: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
732: $result.= $gradestatus;
733: }
734: if (
1.284 albertel 735: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 736: ($target eq 'answer') || ($target eq 'tex')
737: ) {
1.227 albertel 738: if ($target ne 'tex' &&
1.284 albertel 739: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 740: $result.="</form>";
741: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
1.159 albertel 742: }
743: if ($target eq 'web') {
1.281 albertel 744: $result.=&Apache::lonxml::xmlend().'</html>';
1.159 albertel 745: } elsif ($target eq 'tex') {
1.178 sakharuk 746: my $endminipage = '';
1.284 albertel 747: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 748: $endminipage = '\end{minipage}';
749: }
1.284 albertel 750: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 751: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 752: $result=~s/<\/html>//;
1.159 albertel 753: } else {
1.262 sakharuk 754: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 755: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 756: $result .= $endminipage.'\end{document} ';
757: } else {
758: $result .= '';
759: }
1.159 albertel 760: }
761: }
762: }
763: if ($target eq 'grade') {
764: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
765: &finalize_storage();
766: }
1.284 albertel 767: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
768: && $env{'form.answer_output_mode'} ne 'tex') {
1.294 albertel 769: $result.=&Apache::lonxml::xmlend().'</html>';
770: # normally we get it from above, but in CSTR
1.172 albertel 771: # we always show answer mode too.
1.159 albertel 772: }
773: } elsif ($target eq 'meta') {
774: if ($Apache::inputtags::part eq '0') {
1.179 albertel 775: @Apache::inputtags::response=();
1.159 albertel 776: $result=&Apache::response::mandatory_part_meta;
777: }
1.215 albertel 778: $result.=&Apache::response::meta_part_order();
1.258 albertel 779: $result.=&Apache::response::meta_response_order();
1.159 albertel 780: } elsif ($target eq 'edit') {
781: &Apache::lonxml::debug("in end_problem with $target, edit");
782: $result = &problem_edit_footer();
783: }
1.155 albertel 784:
1.284 albertel 785: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 786: &Apache::inputtags::check_for_duplicate_ids();
787: }
1.204 albertel 788:
789: &reset_problem_globals('problem');
1.159 albertel 790:
791: return $result;
1.48 albertel 792: }
793:
1.108 albertel 794:
1.48 albertel 795: sub start_library {
1.159 albertel 796: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
797: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 798: if ($$tagstack[0] eq 'library') {
799: &init_problem_globals('library');
800: $Apache::lonhomework::type='problem';
801: }
1.159 albertel 802: if ($target eq 'edit') {
803: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
804: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
805: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
806: &problem_edit_header();
807: my $temp=&Apache::edit::insertlist($target,$token);
808: $result.=$temp;
809: } elsif ($target eq 'modified') {
810: $result=$token->[4];
811: $result.=&Apache::edit::handle_insert();
812: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 813: $env{'request.state'} eq "construct" ) {
1.159 albertel 814: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
815: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
816: my $name=&get_resource_name($parstack,$safeeval);
817: my $rndseed=&setup_rndseed($safeeval);
818: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 819: $body_tag_start \n $form_tag_start".
1.159 albertel 820: '<input type="hidden" name="submitted" value="yes" />';
821: $result.=&problem_web_to_edit_header($rndseed);
822: }
823: return $result;
1.48 albertel 824: }
825:
826: sub end_library {
1.159 albertel 827: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
828: my $result='';
829: if ($target eq 'edit') {
830: $result=&problem_edit_footer();
831: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 832: $env{'request.state'} eq "construct") {
1.280 albertel 833: $result.='</form>'.&Apache::loncommon::endbodytag().
834: &Apache::lonxml::xmlend();
1.159 albertel 835: }
1.204 albertel 836: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 837: return $result;
1.197 www 838: }
839:
840: sub start_definetag {
841: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
842:
843: my $result;
844:
845: my $name = $token->[2]->{'name'};
846: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
847: if ($name=~/^\//) {
848: $result=
849: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
850: } else {
851: $result=
852: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
853: }
854: $skip=~s/\</\<\;/gs;
855: $skip=~s/\>/\>\;/gs;
856: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
857: return $result;
858: }
859:
860: sub end_definetag {
861: return '';
1.1 albertel 862: }
863:
864: sub start_block {
1.201 albertel 865: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 866:
867: my $result;
1.1 albertel 868:
1.160 albertel 869: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 870: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 871: my $code = $token->[2]->{'condition'};
1.201 albertel 872: if (defined($code)) {
1.137 albertel 873: if (!$Apache::lonxml::default_homework_loaded) {
874: &Apache::lonxml::default_homework_load($safeeval);
875: }
1.131 albertel 876: $result = &Apache::run::run($code,$safeeval);
877: &Apache::lonxml::debug("block :$code: returned :$result:");
878: } else {
879: $result='1';
880: }
881: if ( ! $result ) {
1.201 albertel 882: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 883: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
884: }
885: $result='';
886: } elsif ($target eq 'edit') {
887: $result .=&Apache::edit::tag_start($target,$token);
888: $result .=&Apache::edit::text_arg('Test Condition:','condition',
889: $token,40);
890: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
891: } elsif ($target eq 'modified') {
892: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
893: $safeeval,'condition');
894: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 895: }
1.131 albertel 896: return $result;
1.1 albertel 897: }
898:
899: sub end_block {
1.167 www 900: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
901: my $result;
902: if ($target eq "edit") {
903: $result.= &Apache::edit::tag_end($target,$token,'');
904: }
905: return $result;
906: }
907:
908: sub start_languageblock {
1.201 albertel 909: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 910:
911: my $result;
912:
913: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
914: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 915: my $include = $token->[2]->{'include'};
916: my $exclude = $token->[2]->{'exclude'};
917: my %languages=&Apache::loncommon::display_languages();
918: $result='1';
919: if ($include) {
920: $result='';
921: foreach (split(/\,/,$include)) {
922: if ($languages{$_}) { $result='1'; }
923: }
924: }
925: if ($exclude) {
926: foreach (split(/\,/,$exclude)) {
927: if ($languages{$_}) { $result='0'; }
928: }
929: }
930: if ( ! $result ) {
931: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
932: $style);
933: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
934: }
935: $result='';
1.167 www 936: } elsif ($target eq 'edit') {
937: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 938: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 939: $token,40);
1.211 albertel 940: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 941: $token,40);
942: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
943: } elsif ($target eq 'modified') {
944: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 945: $safeeval,'include',
946: 'exclude');
1.167 www 947: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
948: }
949: return $result;
950: }
951:
952: sub end_languageblock {
1.170 www 953: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
954: my $result;
1.201 albertel 955: if ($target eq "edit") {
1.170 www 956: $result.= &Apache::edit::tag_end($target,$token,'');
957: }
958: return $result;
959: }
960:
961: sub start_instructorcomment {
1.201 albertel 962: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 963:
964: my $result;
965:
966: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
967: $target eq 'tex' || $target eq 'analyze') {
1.284 albertel 968: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
969: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 970: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
971: $parser,$style);
1.170 www 972: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
973: }
974: $result='';
975: } elsif ($target eq 'edit') {
976: $result .=&Apache::edit::tag_start($target,$token);
977: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
978: }
979: return $result;
980: }
981:
982: sub end_instructorcomment {
1.159 albertel 983: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 984: my $result;
985: if ($target eq "edit") {
986: $result.= &Apache::edit::tag_end($target,$token,'');
987: }
988: return $result;
1.4 tsai 989: }
990:
991: sub start_while {
1.159 albertel 992: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
993:
1.160 albertel 994: my $result;
1.161 albertel 995: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 996: $target eq 'tex' || $target eq 'analyze') {
997: my $code = $token->[2]->{'condition'};
1.4 tsai 998:
1.160 albertel 999: push( @Apache::structuretags::whileconds, $code);
1000: if (!$Apache::lonxml::default_homework_loaded) {
1001: &Apache::lonxml::default_homework_load($safeeval);
1002: }
1003: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 1004: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 1005: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1006: push( @Apache::structuretags::whileline, $token->[5]);
1007: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1008: if ( $result ) {
1009: &Apache::lonxml::newparser($parser,\$bodytext);
1010: }
1011: } elsif ($target eq 'edit') {
1012: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1013: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1014: $token,40);
1015: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1016: } elsif ($target eq 'modified') {
1017: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1018: $safeeval,'condition');
1019: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1020: }
1.160 albertel 1021: return $result;
1.4 tsai 1022: }
1023:
1024: sub end_while {
1.159 albertel 1025: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1026: my $result;
1027:
1028: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1029: $target eq 'tex' || $target eq 'analyze') {
1030: my $code = pop(@Apache::structuretags::whileconds);
1031: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1032: my $line = pop(@Apache::structuretags::whileline);
1033: my $return = &Apache::run::run($code,$safeeval);
1034: my $starttime=time;
1035: my $error=0;
1036: while ($return) {
1037: if (time-$starttime >
1038: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1039: #$return = 0; $error=1; next;
1.161 albertel 1040: }
1041: $result.=&Apache::scripttag::xmlparse($bodytext);
1042: $return = &Apache::run::run($code,$safeeval);
1043: }
1044: if ($error) {
1.270 albertel 1045: &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 1046: }
1047: } elsif ($target eq "edit") {
1048: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1049: }
1.160 albertel 1050: return $result;
1.1 albertel 1051: }
1.6 tsai 1052:
1.160 albertel 1053: # <randomlist show="1">
1.6 tsai 1054: # <tag1>..</tag1>
1055: # <tag2>..</tag2>
1056: # <tag3>..</tag3>
1.160 albertel 1057: # ...
1.6 tsai 1058: # </randomlist>
1059: sub start_randomlist {
1.159 albertel 1060: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1061: my $result;
1062: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1063: $target eq 'tex' || $target eq 'analyze') {
1064: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1065: my $b_parser= HTML::LCParser->new(\$body);
1066: $b_parser->xml_mode(1);
1067: $b_parser->marked_sections(1);
1.159 albertel 1068: my $b_tok;
1069: my @randomlist;
1070: my $list_item;
1071: while($b_tok = $b_parser->get_token() ) {
1072: if($b_tok->[0] eq 'S') { # start tag
1073: # get content of the tag until matching end tag
1074: # get all text upto the matching tag
1075: # and push the content into @randomlist
1076: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1077: $b_parser);
1078: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1079: push(@randomlist,$list_item);
1080: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1081: # $list_item</b>";
1082: }
1083: if($b_tok->[0] eq 'T') { # text
1084: # what to do with text in between tags?
1085: # print "<b>TEXT $b_tok->[1]</b><br />";
1086: }
1087: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1088: # print "<b>END-TAG $b_tok->[1]</b><br />";
1089: # }
1090: }
1.303 albertel 1091: if (@randomlist) {
1092: my @idx_arr = (0 .. $#randomlist);
1093: &Apache::structuretags::shuffle(\@idx_arr);
1094: my $bodytext = '';
1095: my $show=$#randomlist;
1096: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1097: $showarg--;
1098: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1099: for(0 .. $show) {
1100: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1101: }
1102: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1103: }
1104: } elsif ($target eq 'edit' ) {
1105: $result .=&Apache::edit::tag_start($target,$token);
1106: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1107: $token,5);
1108: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1109: } elsif ($target eq 'modified' ) {
1110: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1111: $safeeval,'show');
1112: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1113: }
1114: return $result;
1.7 tsai 1115: }
1116:
1117: sub shuffle {
1118: my $a=shift;
1119: my $i;
1.303 albertel 1120: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1121: &Apache::response::pushrandomnumber();
1.159 albertel 1122: for($i=@$a;--$i;) {
1123: my $j=int(&Math::Random::random_uniform() * ($i+1));
1124: next if $i == $j;
1125: @$a[$i,$j] = @$a[$j,$i];
1126: }
1.251 albertel 1127: &Apache::response::poprandomnumber();
1.7 tsai 1128: }
1.6 tsai 1129: }
1130:
1131: sub end_randomlist {
1.159 albertel 1132: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1133: my $result;
1134: if ($target eq 'edit' ) {
1135: $result=&Apache::edit::tag_end($target,$token,
1136: 'End Randomly Parsed Block');
1137: }
1138: return $result;
1.6 tsai 1139: }
1140:
1.283 albertel 1141: sub ordered_show_check {
1142: my $last_part=$Apache::inputtags::partlist[-2];
1143: my $in_order=
1144: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1145: my $in_order_show=1;
1146: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1147: $in_order_show=&Apache::response::check_status($last_part);
1148: }
1149: return $in_order_show;
1150: }
1151:
1.11 albertel 1152: sub start_part {
1.159 albertel 1153: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1154: my $result='';
1155: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1156: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1157: $Apache::inputtags::part=$id;
1.177 albertel 1158: push(@Apache::inputtags::partlist,$id);
1159: @Apache::inputtags::response=();
1.159 albertel 1160: @Apache::inputtags::previous=();
1161: @Apache::inputtags::previous_version=();
1.241 albertel 1162: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1163: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1164: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1165: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1166: my $in_order_show=&ordered_show_check();
1.214 albertel 1167: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1168: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1169: &Apache::run::run($expression,$safeeval);
1.159 albertel 1170:
1171: if ($target eq 'meta') {
1.224 www 1172: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1173: return &Apache::response::mandatory_part_meta.
1174: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1175: } elsif ($target eq 'web' || $target eq 'grade' ||
1176: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1177: if ($hidden || !$in_order_show) {
1.159 albertel 1178: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1179: } else {
1180: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1181: push (@Apache::inputtags::status,$status);
1182: my $expression='$external::datestatus="'.$status.'";';
1183: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1184: &Apache::run::run($expression,$safeeval);
1.284 albertel 1185: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1186: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1187: }
1.216 albertel 1188: if (( $status eq 'CLOSED' ) ||
1189: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1190: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1191: ( $status eq 'BANNED') ||
1192: ( $status eq 'UNAVAILABLE') ||
1193: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 1194: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1195: if ( $target eq "web" ) {
1.211 albertel 1196: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1197: } elsif ( $target eq 'tex' ) {
1.284 albertel 1198: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1199: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1200: } else {
1.211 albertel 1201: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1202: }
1.159 albertel 1203: }
1204: } else {
1205: if ($target eq 'tex') {
1.284 albertel 1206: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1207: if ($$tagstack[-2] eq 'td') {
1208: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1209: } else {
1210: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1211: }
1.195 sakharuk 1212: }
1.159 albertel 1213: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1214: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1215: my @allkeys = split /,/,$allkeys;
1216: my $allow_print_points = 0;
1217: foreach my $partial_key (@allkeys) {
1.230 albertel 1218: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1219: if ($1 ne '0') {$allow_print_points=1;}
1220: }
1221: }
1.275 albertel 1222: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1223: if (defined($maxtries) && $maxtries < 0) {
1224: $allow_print_points=0;
1225: }
1.302 albertel 1226: if (lc($env{'course.'.$env{'request.course.id'}.
1227: '.disableexampointprint'}) eq 'yes') {
1228: $allow_print_points=0;
1229: }
1.222 sakharuk 1230: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1231: } elsif ($target eq 'web') {
1232: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1233: }
1234: }
1235: }
1236: } elsif ($target eq 'edit') {
1237: $result.=&Apache::edit::tag_start($target,$token);
1238: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1239: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1240: ' '.
1241: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1242: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1243: } elsif ($target eq 'modified') {
1244: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1245: $safeeval,'id','display');
1.159 albertel 1246: if ($constructtag) {
1.225 albertel 1247: #limiting ids to only letters numbers, and space
1.224 www 1248: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1249: $result = &Apache::edit::rebuild_tag($token);
1250: $result.=&Apache::edit::handle_insert();
1251: }
1252: }
1253: return $result;
1.11 albertel 1254: }
1255:
1256: sub end_part {
1.159 albertel 1257: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1258: &Apache::lonxml::debug("in end_part $target ");
1259: my $status=$Apache::inputtags::status['-1'];
1260: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1261: my $in_order_show=&ordered_show_check();
1.159 albertel 1262: my $result='';
1263: if ( $target eq 'meta' ) {
1264: $result='';
1.249 albertel 1265: } elsif ($target eq 'grade') {
1266: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1267: !$hidden && $in_order_show) {
1.249 albertel 1268: $result=&Apache::inputtags::grade;
1269: } else {
1270: # move any submission data to .hidden
1271: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1272: }
1.283 albertel 1273: } elsif (($target eq 'web' || $target eq 'tex') &&
1274: !$hidden && $in_order_show) {
1.159 albertel 1275: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1276: $target);
1.212 albertel 1277: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1278: $gradestatus='';
1279: }
1.159 albertel 1280: $result=$gradestatus;
1.265 sakharuk 1281: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1282: } elsif ($target eq 'edit') {
1283: $result=&Apache::edit::end_table();
1.159 albertel 1284: }
1285: pop @Apache::inputtags::status;
1286: $Apache::inputtags::part='';
1.295 albertel 1287: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1288: return $result;
1.11 albertel 1289: }
1.1 albertel 1290:
1.25 albertel 1291: sub start_preduedate {
1.159 albertel 1292: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1293: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1.236 albertel 1294: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1295: if (!$Apache::lonhomework::scantronmode &&
1296: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1297: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1298: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.159 albertel 1299: &Apache::lonxml::get_all_text("/preduedate",$parser);
1300: }
1.24 albertel 1301: }
1.159 albertel 1302: return '';
1.24 albertel 1303: }
1304:
1.25 albertel 1305: sub end_preduedate {
1.159 albertel 1306: return '';
1.24 albertel 1307: }
1308:
1.25 albertel 1309: sub start_postanswerdate {
1.159 albertel 1310: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.234 albertel 1311: if ($target eq 'web' || $target eq 'grade') {
1.300 albertel 1312: if ($Apache::lonhomework::scantronmode ||
1313: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.159 albertel 1314: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1315: }
1316: } elsif ($target eq 'tex') {
1.234 albertel 1317: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1.159 albertel 1318: }
1319: return '';
1.24 albertel 1320: }
1321:
1.25 albertel 1322: sub end_postanswerdate {
1.159 albertel 1323: return '';
1.24 albertel 1324: }
1325:
1.25 albertel 1326: sub start_notsolved {
1.159 albertel 1327: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1328: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1329: $target eq 'tex') {
1330: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1331: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1332: if ($gradestatus =~ /^correct/ &&
1333: &Apache::response::show_answer()) {
1.159 albertel 1334: &Apache::lonxml::debug("skipping");
1335: &Apache::lonxml::get_all_text("/notsolved",$parser);
1336: }
1.24 albertel 1337: }
1.159 albertel 1338: return '';
1.24 albertel 1339: }
1340:
1.25 albertel 1341: sub end_notsolved {
1.159 albertel 1342: return '';
1.24 albertel 1343: }
1344:
1345: sub start_solved {
1.159 albertel 1346: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1347: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1348: $target eq 'tex') {
1349: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1350: if ($gradestatus !~ /^correct/ ||
1351: !&Apache::response::show_answer()) {
1.159 albertel 1352: &Apache::lonxml::get_all_text("/solved",$parser);
1353: }
1.24 albertel 1354: }
1.159 albertel 1355: return '';
1.24 albertel 1356: }
1357:
1358: sub end_solved {
1.248 albertel 1359: return '';
1360: }
1361:
1362: sub start_problemtype {
1363: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1364: my $result;
1365: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1366: $target eq 'tex' || $target eq 'analyze') {
1367: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1368: if (!defined($mode)) { $mode='show'; }
1369: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1370: my $found=0;
1371: foreach my $type (split(',',$for)) {
1372: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1373: }
1374: if ($mode eq 'show' && !$found) {
1375: &Apache::lonxml::get_all_text("/problemtype",$parser);
1376: }
1377: if ($mode eq 'hide' && $found) {
1378: &Apache::lonxml::get_all_text("/problemtype",$parser);
1379: }
1380: } elsif ($target eq 'edit') {
1381: $result .=&Apache::edit::tag_start($target,$token);
1382: $result.=&Apache::edit::select_arg('Mode:','mode',
1383: [['show','Show'],
1384: ['hide','Hide']]
1385: ,$token);
1386: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1387: [ ['exam','Exam/Quiz Problem'],
1388: ['survey','Survey'],
1389: ['problem','Homework Problem'] ]
1390: ,$token);
1391: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1392: } elsif ($target eq 'modified') {
1393: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1394: $safeeval,'mode','for');
1395: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1396: }
1397: return $result;
1398: }
1399:
1400: sub end_problemtype {
1.159 albertel 1401: return '';
1.24 albertel 1402: }
1.34 albertel 1403:
1404: sub start_startouttext {
1.159 albertel 1405: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1406: my @result=(''.'');
1407: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1408: return (@result);
1.34 albertel 1409: }
1.159 albertel 1410:
1.34 albertel 1411: sub end_startouttext {
1.159 albertel 1412: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1413: my $result='';
1414: my $text='';
1415:
1416: if ($target eq 'edit') {
1417: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1.211 albertel 1418: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1419: <td>".&mt('Delete:').
1.159 albertel 1420: &Apache::edit::deletelist($target,$token)
1421: ."</td>
1.42 albertel 1422: <td>".
1.159 albertel 1423: &Apache::edit::insertlist($target,$token).
1424: &Apache::edit::end_row().
1425: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1426: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1427: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1428: }
1429: if ($target eq 'modified') {
1.219 albertel 1430: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1431: }
1432: if ($target eq 'tex') {
1433: $result .= '\noindent ';
1434: }
1435: return $result;
1.34 albertel 1436: }
1.159 albertel 1437:
1.34 albertel 1438: sub start_endouttext {
1.159 albertel 1439: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1440: my $result='';
1441: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1442: if ($target eq "modified") {
1443: $result='<endouttext />'.
1444: &Apache::edit::handle_insertafter('startouttext'); }
1445: return $result;
1.34 albertel 1446: }
1.159 albertel 1447:
1.34 albertel 1448: sub end_endouttext {
1.159 albertel 1449: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1450: my @result=('','');
1451: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1452: return (@result);
1.34 albertel 1453: }
1.159 albertel 1454:
1.45 albertel 1455: sub delete_startouttext {
1.159 albertel 1456: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1457: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1458: my $text=$$parser['-1']->get_text("/endouttext");
1459: my $ntoken=$$parser['-1']->get_token();
1460: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1461: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1462: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1463: # they did the last time round
1464: &Apache::lonxml::increasedepth($ntoken);
1465: &Apache::lonxml::decreasedepth($ntoken);
1466: return 1;
1.193 www 1467: }
1468:
1469: sub start_simpleeditbutton {
1470: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1471: my $result='';
1.284 albertel 1472: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1473: ($target eq 'web') &&
1.284 albertel 1474: (&Apache::lonnet::allowed('srm',$env{'request.course.id'}))) {
1475: my $url=$env{'request.noversionuri'};
1.193 www 1476: $url=~s/\?.*$//;
1.278 albertel 1477: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1478: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1479: '<a href="'.$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 1480: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1481: }
1482: return $result;
1483: }
1484:
1485: sub end_simpleeditbutton {
1486: return '';
1.45 albertel 1487: }
1.34 albertel 1488:
1.1 albertel 1489: 1;
1490: __END__
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