Annotation of loncom/homework/structuretags.pm, revision 1.301
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.301 ! albertel 4: # $Id: structuretags.pm,v 1.300 2005/09/20 06:40:30 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) {
77: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
78: $background;
79: $body_tag_start.='background="'.$background.'" ';
80: } else {
81: if (($bgcolor) && ($env{'browser.blackwhite'} ne 'on')) {
82: $body_tag_start.='bgcolor="'.$bgcolor.'" ';
83: } else {
84: $body_tag_start.='bgcolor="#ffffff"';
85: }
86: }
87: if ($env{'browser.fontenhance'} eq 'on') {
88: $body_tag_start.=' style="font-size: x-large;" ';
89: }
90: $body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1);
1.297 albertel 91:
92: &Apache::lontexconvert::jsMath_reset();
1.290 albertel 93: if ($env{'environment.texengine'} eq 'jsMath') {
1.297 albertel 94: $body_tag_start.=&Apache::lontexconvert::jsMath_header();
1.290 albertel 95: }
96: return $body_tag_start;
97: }
1.291 albertel 98:
1.48 albertel 99: sub page_start {
1.159 albertel 100: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
101: my %found;
1.207 albertel 102: foreach my $taginside (@$tagstack) {
1.159 albertel 103: foreach my $taglookedfor ('html','body','form') {
104: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
105: }
106: }
107:
108: my $result;
109: my $head_tag_start;
110: if (!defined($found{'html'})) {
111: $result=&Apache::londefdef::start_html($target,$token,$tagstack,
112: $parstack,$parser,$safeeval);
1.254 www 113: $head_tag_start='<head>'.&Apache::lonmenu::registerurl(undef,$target).
1.261 www 114: &Apache::lonhtmlcommon::htmlareaheaders().
1.270 albertel 115: &Apache::lonhtmlcommon::spellheader().
116: &Apache::lonxml::fontsettings();
1.159 albertel 117: }
118: my $body_tag_start;
1.284 albertel 119: if (!defined($found{'body'}) && $env{'request.state'} eq 'construct'
120: && $env{'environment.remote'} eq 'off') {
1.298 albertel 121: if ($target eq 'web' || $target eq 'edit') {
1.297 albertel 122: $body_tag_start=&Apache::loncommon::bodytag();
123: $body_tag_start.=&Apache::lonxml::message_location();
124: }
1.272 albertel 125: } elsif (!defined($found{'body'})) {
1.159 albertel 126: my $background=&Apache::lonxml::get_param('background',$parstack,
127: $safeeval);
1.290 albertel 128: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
129: $safeeval);
1.299 albertel 130: $body_tag_start=&body_tag_start($target,$background,$bgcolor);
1.291 albertel 131: if ( ($target eq 'web' || $target eq 'webgrade')
132: && $env{'request.state'} ne 'construct') {
1.165 albertel 133: my ($symb,undef,undef,undef,$publicuser)=
134: &Apache::lonxml::whichuser();
135: if ($symb eq '' && !$publicuser) {
1.159 albertel 136: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
1.211 albertel 137: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
1.159 albertel 138: $body_tag_start.=$help;
139: }
140: }
1.245 albertel 141: $body_tag_start.=&Apache::lonxml::message_location();
1.159 albertel 142: }
143: my $form_tag_start;
144: if (!defined($found{'form'})) {
1.281 albertel 145: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="POST" action="';
1.284 albertel 146: my $uri=$env{'request.uri'};
147: if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
1.271 albertel 148: $form_tag_start.=$uri.'">';
1.159 albertel 149: }
150: return ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.105 albertel 151: }
152:
1.141 matthew 153: #use Time::HiRes();
1.105 albertel 154: sub get_resource_name {
1.159 albertel 155: my ($parstack,$safeeval)=@_;
1.204 albertel 156: if (defined($Apache::lonhomework::name)) {
157: return $Apache::lonhomework::name;
158: }
1.279 albertel 159: my ($symb)=&Apache::lonxml::whichuser();
160: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 161: if ($name eq '') {
162: $name=&Apache::lonnet::EXT('resource.title');
163: if ($name eq 'con_lost') { $name = ''; }
164: }
1.204 albertel 165: if ($name!~/\S+/) {
1.284 albertel 166: $name=$env{'request.uri'};
1.205 albertel 167: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 168: }
1.159 albertel 169: $Apache::lonhomework::name=$name;
170: return $name;
1.105 albertel 171: }
172:
173: sub setup_rndseed {
1.159 albertel 174: my ($safeeval)=@_;
175: my $rndseed;
1.162 albertel 176: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 177: if ($env{'request.state'} eq "construct" || $symb eq '' ||
1.247 albertel 178: $Apache::lonhomework::history{'resource.CODE'}) {
1.284 albertel 179: $rndseed=$env{'form.rndseed'};
1.159 albertel 180: if (!$rndseed) {
1.162 albertel 181: $rndseed=$Apache::lonhomework::history{'rndseed'};
182: if (!$rndseed) {
183: $rndseed=time;
184: }
1.284 albertel 185: $env{'form.rndseed'}=$rndseed;
1.162 albertel 186: }
1.284 albertel 187: if ($env{'form.resetdata'} eq &mt('New Problem Variation') ||
188: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 189: srand(time);
190: $rndseed=int(rand(2100000000));
1.284 albertel 191: $env{'form.rndseed'}=$rndseed;
192: delete($env{'form.resetdata'});
193: delete($env{'form.newrandomization'});
1.159 albertel 194: }
1.187 albertel 195: if (defined($rndseed) && $rndseed ne int($rndseed)) {
196: $rndseed=join(',',&Math::Random::random_seed_from_phrase($rndseed));
197: }
1.247 albertel 198: if ($Apache::lonhomework::history{'resource.CODE'}) {
199: $rndseed=&Apache::lonnet::rndseed();
200: }
1.221 albertel 201: if ($safeeval) {
202: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 203: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 204: }
1.159 albertel 205: }
206: return $rndseed;
1.105 albertel 207: }
208:
1.268 albertel 209: sub remember_problem_state {
210: return '
1.284 albertel 211: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
212: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
213: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 214: }
215:
1.105 albertel 216: sub problem_edit_header {
1.268 albertel 217: return '<input type="hidden" name="submitted" value="edit" />'.
218: &Apache::structuretags::remember_problem_state().'
1.210 albertel 219: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 220: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
221: <input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
222: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
223: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
224: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.260 albertel 225: &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
226: .'</td></tr></table>'.
1.282 albertel 227: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 228: }
229:
230: sub problem_edit_footer {
1.210 albertel 231: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 232: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
233: &Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).
1.280 albertel 234: "\n</form>\n".&Apache::loncommon::endbodytag()."\n</html>";
1.105 albertel 235: }
236:
1.235 albertel 237: sub option {
238: my ($value,$name) = @_;
239: my $result ="<option value='".$value."' ";
1.284 albertel 240: if ($env{'form.'.$name} eq $value) {
1.235 albertel 241: $result.=" selected='on' ";
242: }
243: $result.='>';
244: return $result;
245: }
246:
1.105 albertel 247: sub problem_web_to_edit_header {
1.159 albertel 248: my ($rndseed)=@_;
1.210 albertel 249: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />
1.243 matthew 250: <input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />
251: <input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
252: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
253: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 254: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 255: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 256: $rndseed.'"
1.270 albertel 257: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 258: <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 259: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.228 www 260: $result.= ' />'.&mt(' Show All Foils').
261: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.281 albertel 262: '</label><hr />';
1.235 albertel 263: $result.="
264: <nobr>
265: Problem Status:
266: <select name='problemstate'>
1.270 albertel 267: <option value=''></option>
1.235 albertel 268: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
269: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
270: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
271: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
272: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
273: </select>
274: </nobr>
275: <nobr>
276: Problem Type:
277: <select name='problemtype'>
1.270 albertel 278: <option value=''></option>
1.242 albertel 279: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
280: ".&option('problem','problemtype').&mt("Homework problem")."</option>
281: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 282: </select>
283: </nobr>
284: <nobr>
285: Feedback Mode:
286: <select name='problemstatus'>
287: <option value=''></option>
1.242 albertel 288: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
289: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 290: </select>
291: </nobr>
1.242 albertel 292: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 293: <hr />";
1.284 albertel 294: my $numtoanalyze=$env{'form.numtoanalyze'};
1.176 albertel 295: if (!$numtoanalyze) { $numtoanalyze=20; }
1.210 albertel 296: $result.= '<input type="submit" name="problemmode" value='.
297: &mt('"Calculate answers').'" /> for
1.136 albertel 298: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 299: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
300: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 301: '',undef,undef,300).
1.210 albertel 302: '<hr />';
1.159 albertel 303: return $result;
1.48 albertel 304: }
305:
1.65 albertel 306: sub initialize_storage {
1.159 albertel 307: %Apache::lonhomework::results=();
1.162 albertel 308: %Apache::lonhomework::history=();
1.159 albertel 309: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.284 albertel 310: if ($env{'request.state'} eq 'construct' || $symb eq '') {
1.159 albertel 311: %Apache::lonhomework::history=
1.284 albertel 312: &Apache::lonnet::tmprestore($env{'request.uri'},'',$domain,$name);
1.159 albertel 313: my ($temp)=keys %Apache::lonhomework::history ;
314: &Apache::lonxml::debug("Return message of $temp");
315: } else {
316: %Apache::lonhomework::history=
317: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
318: }
319: #ignore error conditions
1.67 albertel 320: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 321: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 322: }
323:
324: # -------------------------------------------------------------finalize_storage
325: # Stores away the result has to a student's environment
326: # checks form.grade_ for specific values, other wises stores
327: # to the running users environment
1.285 raeburn 328: # Will increment totals for attempts, students, and corrects
329: # if running user has student role.
1.65 albertel 330: sub finalize_storage {
1.159 albertel 331: my $result;
1.289 albertel 332: if (%Apache::lonhomework::results) {
1.159 albertel 333: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.284 albertel 334: if ($env{'request.state'} eq 'construct' || $symb eq '') {
335: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 336: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.284 albertel 337: $env{'request.uri'},'',$domain,$name);
1.159 albertel 338: &Apache::lonxml::debug('Construct Store return message:'.$result);
339: } else {
340: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
341: $symb,$courseid,$domain,$name);
342: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 343: if ($env{'request.role'} =~/^st/) {
344: &store_aggregates($symb,$courseid);
345: }
1.159 albertel 346: }
1.67 albertel 347: }
1.159 albertel 348: return $result;
1.65 albertel 349: }
1.289 albertel 350: use Data::Dumper;
1.65 albertel 351:
1.285 raeburn 352: # -------------------------------------------------------------store_aggregates
353: # Sends hash of values to be incremented in nohist_resourcetracker.db
354: # for the course. Increments total number of attempts, unique students
355: # and corrects for each part for an instance of a problem, as appropriate.
356: sub store_aggregates {
357: my ($symb,$courseid) = @_;
1.286 albertel 358: my %aggregate;
359: my @parts;
1.288 albertel 360: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
361: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 362: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 363: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 364: push(@parts, $1);
1.285 raeburn 365: }
366: }
1.286 albertel 367: foreach my $part (@parts) {
368: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
369: eq 'APPROX_ANS' ||
370: $Apache::lonhomework::results{'resource.'.$part.'.award'}
371: eq 'EXACT_ANS') {
1.287 albertel 372: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 373: }
1.286 albertel 374: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 375: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 376: } else {
1.293 albertel 377: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 378: if ($last_reset) {
1.293 albertel 379: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 380: $aggregate{$symb."\0".$part."\0users"} = 1;
381: }
382: }
1.285 raeburn 383: }
1.287 albertel 384: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 385: }
1.292 raeburn 386: if (keys (%aggregate) > 0) {
1.289 albertel 387: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 388: $cdomain,$cname);
389: }
390: }
1.289 albertel 391:
1.65 albertel 392: sub checkout_msg {
1.211 albertel 393: my %lt=&Apache::lonlocal::texthash(
394: 'resource'=>'The resource needs to be checked out',
395: '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.',
396: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
397: 'checkout'=>'Check out Exam for Viewing',
398: 'checkout?'=>'Check out Exam?');
1.159 albertel 399: return (<<ENDCHECKOUT);
1.211 albertel 400: <h2>$lt{'resource'}</h2>
401: <p>$lt{'id_expln'}</p>
402: <font color="red">
403: <p>$lt{'warning'}</p>
1.91 albertel 404: </font>
1.284 albertel 405: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.91 albertel 406: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 407: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 408: </form>
409: ENDCHECKOUT
410: }
411:
1.252 albertel 412: sub firstaccess_msg {
1.253 albertel 413: my ($time,$symb)=@_;
414: my ($map)=&Apache::lonnet::decode_symb($symb);
415: my $foldertitle=&Apache::lonnet::gettitle($map);
416: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.252 albertel 417: return (<<ENDCHECKOUT);
1.253 albertel 418: <h2>The resources in "$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 419: <form name="markaccess" method="POST" action="$env{'request.uri'}">
1.252 albertel 420: <input type="hidden" name="markaccess" value="yes" />
421: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
422: </form>
423: ENDCHECKOUT
424: }
425:
1.204 albertel 426: sub init_problem_globals {
427: my ($type)=@_;
428: #initialize globals
429: if ($type eq 'problem') {
430: $Apache::inputtags::part='0';
431: @Apache::inputtags::partlist=('0');
1.266 albertel 432: $Apache::lonhomework::problemstatus=&get_problem_status('0');
433: $Apache::lonhomework::ignore_response_errors=0;
434: } elsif ($type eq 'library') {
1.204 albertel 435: $Apache::inputtags::part='';
436: @Apache::inputtags::partlist=();
437: $Apache::lonhomework::problemstatus='';
1.266 albertel 438: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 439: }
440: @Apache::inputtags::responselist = ();
441: @Apache::inputtags::importlist = ();
442: @Apache::inputtags::previous=();
443: @Apache::inputtags::previous_version=();
444: $Apache::structuretags::printanswer='No';
445: @Apache::structuretags::whileconds=();
446: @Apache::structuretags::whilebody=();
447: @Apache::structuretags::whileline=();
448: $Apache::lonhomework::scantronmode=0;
449: undef($Apache::lonhomework::name);
450:
451: }
452:
453: sub reset_problem_globals {
454: my ($type)=@_;
455: undef(%Apache::lonhomework::history);
456: undef(%Apache::lonhomework::results);
457: undef($Apache::inputtags::part);
1.208 albertel 458: #don't undef this, lonhomework.pm takes care of this, we use this to
459: #detect if we try to do 2 problems in one file
460: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 461: undef($Apache::lonhomework::name);
462: }
463:
1.241 albertel 464: sub set_problem_state {
1.240 albertel 465: my ($part)=@_;
1.284 albertel 466: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 467: $Apache::lonhomework::history{"resource.$part.solved"}=
468: 'correct_by_student';
469: }
470: }
471:
1.241 albertel 472: sub get_problem_status {
473: my ($part)=@_;
1.267 albertel 474: my $problem_status;
1.284 albertel 475: if ($env{'request.state'} eq 'construct' &&
476: defined($env{'form.problemstatus'})) {
477: $problem_status=$env{'form.problemstatus'};
1.267 albertel 478: } else {
479: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
480: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 481: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 482: }
483: return $problem_status;
484: }
485:
1.9 albertel 486: sub start_problem {
1.159 albertel 487: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 488:
1.184 albertel 489: if ( $Apache::inputtags::part ne '' ||
490: $Apache::lonhomework::parsing_a_problem) {
491: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
492: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
1.159 albertel 493: return '';
494: }
1.184 albertel 495:
496: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 497: &init_problem_globals('problem');
1.166 albertel 498:
1.284 albertel 499: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 500: $Apache::lonhomework::scantronmode=1;
501: }
1.161 albertel 502:
1.246 albertel 503: &initialize_storage();
1.159 albertel 504: if ($target ne 'analyze') {
505: if ($target eq 'web') {
506: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 507: }
1.284 albertel 508: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 509: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 510: if (($env{'request.state'} eq 'construct') &&
511: defined($env{'form.problemtype'})) {
512: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 513: }
1.240 albertel 514: &Apache::lonxml::debug("Found this to be of type :$Apache::ltonhomework::type:");
1.159 albertel 515: }
1.164 albertel 516: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 517: my $uri=$env{'request.uri'};
1.159 albertel 518: if ($uri=~/\.(\w+)$/) {
519: $Apache::lonhomework::type=$1;
520: &Apache::lonxml::debug("Using type of $1");
521: } else {
522: $Apache::lonhomework::type='problem';
523: &Apache::lonxml::debug("Using default type, problem, :$uri:");
524: }
1.87 albertel 525: }
1.301 ! albertel 526: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 527:
1.159 albertel 528: #added vars to the scripting enviroment
1.213 albertel 529: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 530: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 531: &Apache::run::run($expression,$safeeval);
1.159 albertel 532: my $status;
533: my $accessmsg;
534:
535: #should get back a <html> or the neccesary stuff to start XML/MathML
536: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
537: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.284 albertel 538: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 539:
540: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
541: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
542: $target eq 'tex') {
543: #handle exam checkout
544: if ($Apache::lonhomework::type eq 'exam') {
545: my $token=
546: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 547: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 548: $token=&Apache::lonxml::maketoken();
549: $Apache::lonhomework::history{"resource.0.outtoken"}=
550: $token;
551: }
552: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 553: }
1.284 albertel 554: if ($env{'form.markaccess'}) {
1.252 albertel 555: &Apache::lonnet::set_first_access('map');
556: }
1.159 albertel 557: #handle rand seed in construction space
558: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 559: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 560: if ($env{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 561: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
562: $rndseed.'" />'.
563: '<input type="submit" name="resetdata"
1.211 albertel 564: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 565: '<input type="hidden" name="username"
1.284 albertel 566: value="'.$env{'form.username'}.'" />';
567: if ($env{'user.adv'}) {
1.267 albertel 568: $form_tag_start.=
1.300 albertel 569: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 570: if (defined($env{'form.showallfoils'})) {
1.267 albertel 571: $form_tag_start.='checked="on"';
572: }
1.300 albertel 573: $form_tag_start.= ' />'.&mt(' Show All Foils').
574: '</label>';
1.267 albertel 575: }
576: $form_tag_start.='<hr />';
1.162 albertel 577: }
1.159 albertel 578: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
579: push (@Apache::inputtags::status,$status);
580: my $expression='$external::datestatus="'.$status.'";';
581: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
582: &Apache::run::run($expression,$safeeval);
583: &Apache::lonxml::debug("Got $status");
584: if (( $status eq 'CLOSED' ) ||
585: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 586: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 587: ( $status eq 'BANNED') ||
1.216 albertel 588: ( $status eq 'UNAVAILABLE') ||
589: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 590: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
591: if ( $target eq "web" ) {
592: $result.= $head_tag_start.'</head>';
593: my $msg=$body_tag_start;
594: if ($status eq 'UNAVAILABLE') {
1.245 albertel 595: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 596: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 597: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 598: }
1.216 albertel 599: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 600: $msg.='The problem '.$accessmsg;
601: } elsif ($status eq 'UNCHECKEDOUT') {
602: $msg.=&checkout_msg;
1.252 albertel 603: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 604: $msg.=&firstaccess_msg($accessmsg,$symb);
1.159 albertel 605: }
606: $result.=$msg.'<br />';
607: } elsif ($target eq 'tex') {
608: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
609: if ($status eq 'UNAVAILABLE') {
1.211 albertel 610: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 611: } else {
1.211 albertel 612: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 613: }
614: }
615: } elsif ($target eq 'web') {
616: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 617: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 618: $body_tag_start \n $form_tag_start".
1.227 albertel 619: '<input type="hidden" name="submitted" value="yes" />';
620: # create a page header and exit
1.284 albertel 621: if ($env{'request.state'} eq "construct") {
622: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 623: }
624: # if we are viewing someone else preserve that info
1.284 albertel 625: if (defined $env{'form.grade_symb'}) {
1.227 albertel 626: foreach my $field ('symb','courseid','domain','username') {
627: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 628: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 629: }
630: }
631: } elsif ($target eq 'tex') {
1.192 sakharuk 632: my $startminipage = '';
1.284 albertel 633: if (not $env{'form.problem_split'}=~/yes/) {
1.192 sakharuk 634: $startminipage = '\begin{minipage}{\textwidth}';
1.178 sakharuk 635: }
1.159 albertel 636: my $id = $Apache::inputtags::part;
637: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 638: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.223 sakharuk 639: my @packages = split /,/,$packages;
640: my $allow_print_points = 0;
641: foreach my $partial_key (@packages) {
1.230 albertel 642: if ($partial_key=~m/^part_0$/) {
1.223 sakharuk 643: $allow_print_points=1;
1.159 albertel 644: }
645: }
1.276 albertel 646: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
647: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1.159 albertel 648: my $duedate = &Apache::lonnet::EXT("resource.$id.duedate");
649: $duedate = POSIX::strftime("%c",localtime($duedate));
650: my $temp_file;
1.284 albertel 651: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1.159 albertel 652: if (-e $filename) {
653: $temp_file = Apache::File->new($filename);
654: } else {
655: $temp_file = Apache::File->new('>>'.$filename);
656: }
657: my @due_file_content = <$temp_file>;
658: my $due_file_content = $due_file_content[$#due_file_content];
659: chomp $due_file_content;
1.257 sakharuk 660: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.159 albertel 661: if ($due_file_content ne $duedate) {
662: $temp_file = Apache::File->new('>'.$filename);
663: print $temp_file "$duedate\n";
1.284 albertel 664: if (not $env{'request.symb'} =~ m/\.page_/) {
1.159 albertel 665: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1.284 albertel 666: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent\textit{Due date: '.$duedate.'} \vskip 1 mm\noindent '.$startminipage.'\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1.159 albertel 667: } else {
1.284 albertel 668: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent \vskip 1 mm \noindent'.$startminipage.'\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1.159 albertel 669: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
670: }
1.104 sakharuk 671: } else {
1.159 albertel 672: $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
1.104 sakharuk 673: }
1.101 sakharuk 674: } else {
1.284 albertel 675: if (not $env{'request.symb'} =~ m/\.page_/) {
676: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent \vskip 1 mm\noindent'.$startminipage.'\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1.159 albertel 677: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
678: } else {
679: $result .= '\vskip 1mm \\\\\\\\';
680: }
681: }
1.99 sakharuk 682: }
1.159 albertel 683: } elsif ($target eq 'edit') {
684: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
685: &problem_edit_header();
1.226 albertel 686: $Apache::lonxml::warnings_error_header=
687: &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 688: my $temp=&Apache::edit::insertlist($target,$token);
689: $result.=$temp;
690: } elsif ($target eq 'modified') {
691: $result=$token->[4];
692: $result.=&Apache::edit::handle_insert();
693: } else {
694: # page_start returned a starting result, delete it if we don't need it
695: $result = '';
1.99 sakharuk 696: }
1.159 albertel 697: return $result;
1.9 albertel 698: }
699:
700: sub end_problem {
1.159 albertel 701: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
702: my $result='';
703: my $status=$Apache::inputtags::status['-1'];
704: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
705: $target eq 'tex') {
1.249 albertel 706: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 707: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 708: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
709: &Apache::inputtags::grade;
710: } else {
711: # move any submission data to .hidden
712: &Apache::inputtags::hidealldata($Apache::inputtags::part);
713: }
1.159 albertel 714: } elsif ( ($target eq 'web' || $target eq 'tex') &&
715: $Apache::inputtags::part eq '0' &&
1.252 albertel 716: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 717: # if part is zero, no <part>s existed, so we need show the current
718: # grading status
719: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
720: $result.= $gradestatus;
721: }
722: if (
1.284 albertel 723: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 724: ($target eq 'answer') || ($target eq 'tex')
725: ) {
1.227 albertel 726: if ($target ne 'tex' &&
1.284 albertel 727: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 728: $result.="</form>";
729: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
1.159 albertel 730: }
731: if ($target eq 'web') {
1.281 albertel 732: $result.=&Apache::lonxml::xmlend().'</html>';
1.159 albertel 733: } elsif ($target eq 'tex') {
1.178 sakharuk 734: my $endminipage = '';
1.284 albertel 735: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 736: $endminipage = '\end{minipage}';
737: }
1.284 albertel 738: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 739: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 740: $result=~s/<\/html>//;
1.159 albertel 741: } else {
1.262 sakharuk 742: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 743: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 744: $result .= $endminipage.'\end{document} ';
745: } else {
746: $result .= '';
747: }
1.159 albertel 748: }
749: }
750: }
751: if ($target eq 'grade') {
752: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
753: &finalize_storage();
754: }
1.284 albertel 755: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
756: && $env{'form.answer_output_mode'} ne 'tex') {
1.294 albertel 757: $result.=&Apache::lonxml::xmlend().'</html>';
758: # normally we get it from above, but in CSTR
1.172 albertel 759: # we always show answer mode too.
1.159 albertel 760: }
761: } elsif ($target eq 'meta') {
762: if ($Apache::inputtags::part eq '0') {
1.179 albertel 763: @Apache::inputtags::response=();
1.159 albertel 764: $result=&Apache::response::mandatory_part_meta;
765: }
1.215 albertel 766: $result.=&Apache::response::meta_part_order();
1.258 albertel 767: $result.=&Apache::response::meta_response_order();
1.159 albertel 768: } elsif ($target eq 'edit') {
769: &Apache::lonxml::debug("in end_problem with $target, edit");
770: $result = &problem_edit_footer();
771: }
1.155 albertel 772:
1.284 albertel 773: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 774: &Apache::inputtags::check_for_duplicate_ids();
775: }
1.204 albertel 776:
777: &reset_problem_globals('problem');
1.159 albertel 778:
779: return $result;
1.48 albertel 780: }
781:
1.108 albertel 782:
1.48 albertel 783: sub start_library {
1.159 albertel 784: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
785: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 786: if ($$tagstack[0] eq 'library') {
787: &init_problem_globals('library');
788: $Apache::lonhomework::type='problem';
789: }
1.159 albertel 790: if ($target eq 'edit') {
791: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
792: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
793: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
794: &problem_edit_header();
795: my $temp=&Apache::edit::insertlist($target,$token);
796: $result.=$temp;
797: } elsif ($target eq 'modified') {
798: $result=$token->[4];
799: $result.=&Apache::edit::handle_insert();
800: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 801: $env{'request.state'} eq "construct" ) {
1.159 albertel 802: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
803: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
804: my $name=&get_resource_name($parstack,$safeeval);
805: my $rndseed=&setup_rndseed($safeeval);
806: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 807: $body_tag_start \n $form_tag_start".
1.159 albertel 808: '<input type="hidden" name="submitted" value="yes" />';
809: $result.=&problem_web_to_edit_header($rndseed);
810: }
811: return $result;
1.48 albertel 812: }
813:
814: sub end_library {
1.159 albertel 815: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
816: my $result='';
817: if ($target eq 'edit') {
818: $result=&problem_edit_footer();
819: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 820: $env{'request.state'} eq "construct") {
1.280 albertel 821: $result.='</form>'.&Apache::loncommon::endbodytag().
822: &Apache::lonxml::xmlend();
1.159 albertel 823: }
1.204 albertel 824: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 825: return $result;
1.197 www 826: }
827:
828: sub start_definetag {
829: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
830:
831: my $result;
832:
833: my $name = $token->[2]->{'name'};
834: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
835: if ($name=~/^\//) {
836: $result=
837: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
838: } else {
839: $result=
840: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
841: }
842: $skip=~s/\</\<\;/gs;
843: $skip=~s/\>/\>\;/gs;
844: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
845: return $result;
846: }
847:
848: sub end_definetag {
849: return '';
1.1 albertel 850: }
851:
852: sub start_block {
1.201 albertel 853: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 854:
855: my $result;
1.1 albertel 856:
1.160 albertel 857: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 858: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 859: my $code = $token->[2]->{'condition'};
1.201 albertel 860: if (defined($code)) {
1.137 albertel 861: if (!$Apache::lonxml::default_homework_loaded) {
862: &Apache::lonxml::default_homework_load($safeeval);
863: }
1.131 albertel 864: $result = &Apache::run::run($code,$safeeval);
865: &Apache::lonxml::debug("block :$code: returned :$result:");
866: } else {
867: $result='1';
868: }
869: if ( ! $result ) {
1.201 albertel 870: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 871: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
872: }
873: $result='';
874: } elsif ($target eq 'edit') {
875: $result .=&Apache::edit::tag_start($target,$token);
876: $result .=&Apache::edit::text_arg('Test Condition:','condition',
877: $token,40);
878: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
879: } elsif ($target eq 'modified') {
880: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
881: $safeeval,'condition');
882: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 883: }
1.131 albertel 884: return $result;
1.1 albertel 885: }
886:
887: sub end_block {
1.167 www 888: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
889: my $result;
890: if ($target eq "edit") {
891: $result.= &Apache::edit::tag_end($target,$token,'');
892: }
893: return $result;
894: }
895:
896: sub start_languageblock {
1.201 albertel 897: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 898:
899: my $result;
900:
901: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
902: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 903: my $include = $token->[2]->{'include'};
904: my $exclude = $token->[2]->{'exclude'};
905: my %languages=&Apache::loncommon::display_languages();
906: $result='1';
907: if ($include) {
908: $result='';
909: foreach (split(/\,/,$include)) {
910: if ($languages{$_}) { $result='1'; }
911: }
912: }
913: if ($exclude) {
914: foreach (split(/\,/,$exclude)) {
915: if ($languages{$_}) { $result='0'; }
916: }
917: }
918: if ( ! $result ) {
919: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
920: $style);
921: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
922: }
923: $result='';
1.167 www 924: } elsif ($target eq 'edit') {
925: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 926: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 927: $token,40);
1.211 albertel 928: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 929: $token,40);
930: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
931: } elsif ($target eq 'modified') {
932: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 933: $safeeval,'include',
934: 'exclude');
1.167 www 935: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
936: }
937: return $result;
938: }
939:
940: sub end_languageblock {
1.170 www 941: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
942: my $result;
1.201 albertel 943: if ($target eq "edit") {
1.170 www 944: $result.= &Apache::edit::tag_end($target,$token,'');
945: }
946: return $result;
947: }
948:
949: sub start_instructorcomment {
1.201 albertel 950: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 951:
952: my $result;
953:
954: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
955: $target eq 'tex' || $target eq 'analyze') {
1.284 albertel 956: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
957: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 958: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
959: $parser,$style);
1.170 www 960: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
961: }
962: $result='';
963: } elsif ($target eq 'edit') {
964: $result .=&Apache::edit::tag_start($target,$token);
965: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
966: }
967: return $result;
968: }
969:
970: sub end_instructorcomment {
1.159 albertel 971: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 972: my $result;
973: if ($target eq "edit") {
974: $result.= &Apache::edit::tag_end($target,$token,'');
975: }
976: return $result;
1.4 tsai 977: }
978:
979: sub start_while {
1.159 albertel 980: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
981:
1.160 albertel 982: my $result;
1.161 albertel 983: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 984: $target eq 'tex' || $target eq 'analyze') {
985: my $code = $token->[2]->{'condition'};
1.4 tsai 986:
1.160 albertel 987: push( @Apache::structuretags::whileconds, $code);
988: if (!$Apache::lonxml::default_homework_loaded) {
989: &Apache::lonxml::default_homework_load($safeeval);
990: }
991: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 992: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 993: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 994: push( @Apache::structuretags::whileline, $token->[5]);
995: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 996: if ( $result ) {
997: &Apache::lonxml::newparser($parser,\$bodytext);
998: }
999: } elsif ($target eq 'edit') {
1000: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1001: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1002: $token,40);
1003: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1004: } elsif ($target eq 'modified') {
1005: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1006: $safeeval,'condition');
1007: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1008: }
1.160 albertel 1009: return $result;
1.4 tsai 1010: }
1011:
1012: sub end_while {
1.159 albertel 1013: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1014: my $result;
1015:
1016: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1017: $target eq 'tex' || $target eq 'analyze') {
1018: my $code = pop(@Apache::structuretags::whileconds);
1019: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1020: my $line = pop(@Apache::structuretags::whileline);
1021: my $return = &Apache::run::run($code,$safeeval);
1022: my $starttime=time;
1023: my $error=0;
1024: while ($return) {
1025: if (time-$starttime >
1026: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1027: #$return = 0; $error=1; next;
1.161 albertel 1028: }
1029: $result.=&Apache::scripttag::xmlparse($bodytext);
1030: $return = &Apache::run::run($code,$safeeval);
1031: }
1032: if ($error) {
1.270 albertel 1033: &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 1034: }
1035: } elsif ($target eq "edit") {
1036: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1037: }
1.160 albertel 1038: return $result;
1.1 albertel 1039: }
1.6 tsai 1040:
1.160 albertel 1041: # <randomlist show="1">
1.6 tsai 1042: # <tag1>..</tag1>
1043: # <tag2>..</tag2>
1044: # <tag3>..</tag3>
1.160 albertel 1045: # ...
1.6 tsai 1046: # </randomlist>
1047: sub start_randomlist {
1.159 albertel 1048: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1049: my $result;
1050: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1051: $target eq 'tex' || $target eq 'analyze') {
1052: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1053: my $b_parser= HTML::TokeParser->new(\$body);
1054: my $b_tok;
1055: my @randomlist;
1056: my $list_item;
1057: while($b_tok = $b_parser->get_token() ) {
1058: if($b_tok->[0] eq 'S') { # start tag
1059: # get content of the tag until matching end tag
1060: # get all text upto the matching tag
1061: # and push the content into @randomlist
1062: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1063: $b_parser);
1064: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1065: push(@randomlist,$list_item);
1066: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1067: # $list_item</b>";
1068: }
1069: if($b_tok->[0] eq 'T') { # text
1070: # what to do with text in between tags?
1071: # print "<b>TEXT $b_tok->[1]</b><br />";
1072: }
1073: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1074: # print "<b>END-TAG $b_tok->[1]</b><br />";
1075: # }
1076: }
1077: my @idx_arr = (0 .. $#randomlist);
1078: &Apache::structuretags::shuffle(\@idx_arr);
1079: my $bodytext = '';
1080: my $show=$#randomlist;
1081: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1082: $showarg--;
1083: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1084: for(0 .. $show) {
1085: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1086: }
1087: &Apache::lonxml::newparser($parser,\$bodytext);
1088: } elsif ($target eq 'edit' ) {
1089: $result .=&Apache::edit::tag_start($target,$token);
1090: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1091: $token,5);
1092: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1093: } elsif ($target eq 'modified' ) {
1094: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1095: $safeeval,'show');
1096: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1097: }
1098: return $result;
1.7 tsai 1099: }
1100:
1101: sub shuffle {
1102: my $a=shift;
1103: my $i;
1.70 albertel 1104: if (defined(@$a)) {
1.251 albertel 1105: &Apache::response::pushrandomnumber();
1.159 albertel 1106: for($i=@$a;--$i;) {
1107: my $j=int(&Math::Random::random_uniform() * ($i+1));
1108: next if $i == $j;
1109: @$a[$i,$j] = @$a[$j,$i];
1110: }
1.251 albertel 1111: &Apache::response::poprandomnumber();
1.7 tsai 1112: }
1.6 tsai 1113: }
1114:
1115: sub end_randomlist {
1.159 albertel 1116: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1117: my $result;
1118: if ($target eq 'edit' ) {
1119: $result=&Apache::edit::tag_end($target,$token,
1120: 'End Randomly Parsed Block');
1121: }
1122: return $result;
1.6 tsai 1123: }
1124:
1.283 albertel 1125: sub ordered_show_check {
1126: my $last_part=$Apache::inputtags::partlist[-2];
1127: my $in_order=
1128: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1129: my $in_order_show=1;
1130: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1131: $in_order_show=&Apache::response::check_status($last_part);
1132: }
1133: return $in_order_show;
1134: }
1135:
1.11 albertel 1136: sub start_part {
1.159 albertel 1137: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1138: my $result='';
1139: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1140: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1141: $Apache::inputtags::part=$id;
1.177 albertel 1142: push(@Apache::inputtags::partlist,$id);
1143: @Apache::inputtags::response=();
1.159 albertel 1144: @Apache::inputtags::previous=();
1145: @Apache::inputtags::previous_version=();
1.241 albertel 1146: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1147: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1148: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1149: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1150: my $in_order_show=&ordered_show_check();
1.214 albertel 1151: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1152: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1153: &Apache::run::run($expression,$safeeval);
1.159 albertel 1154:
1155: if ($target eq 'meta') {
1.224 www 1156: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1157: return &Apache::response::mandatory_part_meta.
1158: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1159: } elsif ($target eq 'web' || $target eq 'grade' ||
1160: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1161: if ($hidden || !$in_order_show) {
1.159 albertel 1162: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1163: } else {
1164: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1165: push (@Apache::inputtags::status,$status);
1166: my $expression='$external::datestatus="'.$status.'";';
1167: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1168: &Apache::run::run($expression,$safeeval);
1.284 albertel 1169: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1170: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1171: }
1.216 albertel 1172: if (( $status eq 'CLOSED' ) ||
1173: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1174: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1175: ( $status eq 'BANNED') ||
1176: ( $status eq 'UNAVAILABLE') ||
1177: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 1178: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1179: if ( $target eq "web" ) {
1.211 albertel 1180: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1181: } elsif ( $target eq 'tex' ) {
1.284 albertel 1182: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1183: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1184: } else {
1.211 albertel 1185: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1186: }
1.159 albertel 1187: }
1188: } else {
1189: if ($target eq 'tex') {
1.284 albertel 1190: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1191: if ($$tagstack[-2] eq 'td') {
1192: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1193: } else {
1194: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1195: }
1.195 sakharuk 1196: }
1.159 albertel 1197: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1198: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1199: my @allkeys = split /,/,$allkeys;
1200: my $allow_print_points = 0;
1201: foreach my $partial_key (@allkeys) {
1.230 albertel 1202: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1203: if ($1 ne '0') {$allow_print_points=1;}
1204: }
1205: }
1.275 albertel 1206: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1207: if (defined($maxtries) && $maxtries < 0) {
1208: $allow_print_points=0;
1209: }
1.222 sakharuk 1210: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1211: } elsif ($target eq 'web') {
1212: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1213: }
1214: }
1215: }
1216: } elsif ($target eq 'edit') {
1217: $result.=&Apache::edit::tag_start($target,$token);
1218: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1219: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1220: ' '.
1221: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1222: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1223: } elsif ($target eq 'modified') {
1224: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1225: $safeeval,'id','display');
1.159 albertel 1226: if ($constructtag) {
1.225 albertel 1227: #limiting ids to only letters numbers, and space
1.224 www 1228: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1229: $result = &Apache::edit::rebuild_tag($token);
1230: $result.=&Apache::edit::handle_insert();
1231: }
1232: }
1233: return $result;
1.11 albertel 1234: }
1235:
1236: sub end_part {
1.159 albertel 1237: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1238: &Apache::lonxml::debug("in end_part $target ");
1239: my $status=$Apache::inputtags::status['-1'];
1240: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1241: my $in_order_show=&ordered_show_check();
1.159 albertel 1242: my $result='';
1243: if ( $target eq 'meta' ) {
1244: $result='';
1.249 albertel 1245: } elsif ($target eq 'grade') {
1246: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1247: !$hidden && $in_order_show) {
1.249 albertel 1248: $result=&Apache::inputtags::grade;
1249: } else {
1250: # move any submission data to .hidden
1251: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1252: }
1.283 albertel 1253: } elsif (($target eq 'web' || $target eq 'tex') &&
1254: !$hidden && $in_order_show) {
1.159 albertel 1255: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1256: $target);
1.212 albertel 1257: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1258: $gradestatus='';
1259: }
1.159 albertel 1260: $result=$gradestatus;
1.265 sakharuk 1261: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1262: } elsif ($target eq 'edit') {
1263: $result=&Apache::edit::end_table();
1.159 albertel 1264: }
1265: pop @Apache::inputtags::status;
1266: $Apache::inputtags::part='';
1.295 albertel 1267: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1268: return $result;
1.11 albertel 1269: }
1.1 albertel 1270:
1.25 albertel 1271: sub start_preduedate {
1.159 albertel 1272: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1273: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1.236 albertel 1274: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1275: if (!$Apache::lonhomework::scantronmode &&
1276: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1277: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1278: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.159 albertel 1279: &Apache::lonxml::get_all_text("/preduedate",$parser);
1280: }
1.24 albertel 1281: }
1.159 albertel 1282: return '';
1.24 albertel 1283: }
1284:
1.25 albertel 1285: sub end_preduedate {
1.159 albertel 1286: return '';
1.24 albertel 1287: }
1288:
1.25 albertel 1289: sub start_postanswerdate {
1.159 albertel 1290: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.234 albertel 1291: if ($target eq 'web' || $target eq 'grade') {
1.300 albertel 1292: if ($Apache::lonhomework::scantronmode ||
1293: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.159 albertel 1294: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1295: }
1296: } elsif ($target eq 'tex') {
1.234 albertel 1297: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1.159 albertel 1298: }
1299: return '';
1.24 albertel 1300: }
1301:
1.25 albertel 1302: sub end_postanswerdate {
1.159 albertel 1303: return '';
1.24 albertel 1304: }
1305:
1.25 albertel 1306: sub start_notsolved {
1.159 albertel 1307: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1308: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1309: $target eq 'tex') {
1310: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1311: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1312: if ($gradestatus =~ /^correct/ &&
1313: &Apache::response::show_answer()) {
1.159 albertel 1314: &Apache::lonxml::debug("skipping");
1315: &Apache::lonxml::get_all_text("/notsolved",$parser);
1316: }
1.24 albertel 1317: }
1.159 albertel 1318: return '';
1.24 albertel 1319: }
1320:
1.25 albertel 1321: sub end_notsolved {
1.159 albertel 1322: return '';
1.24 albertel 1323: }
1324:
1325: sub start_solved {
1.159 albertel 1326: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1327: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1328: $target eq 'tex') {
1329: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1330: if ($gradestatus !~ /^correct/ ||
1331: !&Apache::response::show_answer()) {
1.159 albertel 1332: &Apache::lonxml::get_all_text("/solved",$parser);
1333: }
1.24 albertel 1334: }
1.159 albertel 1335: return '';
1.24 albertel 1336: }
1337:
1338: sub end_solved {
1.248 albertel 1339: return '';
1340: }
1341:
1342: sub start_problemtype {
1343: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1344: my $result;
1345: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1346: $target eq 'tex' || $target eq 'analyze') {
1347: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1348: if (!defined($mode)) { $mode='show'; }
1349: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1350: my $found=0;
1351: foreach my $type (split(',',$for)) {
1352: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1353: }
1354: if ($mode eq 'show' && !$found) {
1355: &Apache::lonxml::get_all_text("/problemtype",$parser);
1356: }
1357: if ($mode eq 'hide' && $found) {
1358: &Apache::lonxml::get_all_text("/problemtype",$parser);
1359: }
1360: } elsif ($target eq 'edit') {
1361: $result .=&Apache::edit::tag_start($target,$token);
1362: $result.=&Apache::edit::select_arg('Mode:','mode',
1363: [['show','Show'],
1364: ['hide','Hide']]
1365: ,$token);
1366: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1367: [ ['exam','Exam/Quiz Problem'],
1368: ['survey','Survey'],
1369: ['problem','Homework Problem'] ]
1370: ,$token);
1371: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1372: } elsif ($target eq 'modified') {
1373: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1374: $safeeval,'mode','for');
1375: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1376: }
1377: return $result;
1378: }
1379:
1380: sub end_problemtype {
1.159 albertel 1381: return '';
1.24 albertel 1382: }
1.34 albertel 1383:
1384: sub start_startouttext {
1.159 albertel 1385: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1386: my @result=(''.'');
1387: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1388: return (@result);
1.34 albertel 1389: }
1.159 albertel 1390:
1.34 albertel 1391: sub end_startouttext {
1.159 albertel 1392: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1393: my $result='';
1394: my $text='';
1395:
1396: if ($target eq 'edit') {
1397: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1.211 albertel 1398: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1399: <td>".&mt('Delete:').
1.159 albertel 1400: &Apache::edit::deletelist($target,$token)
1401: ."</td>
1.42 albertel 1402: <td>".
1.159 albertel 1403: &Apache::edit::insertlist($target,$token).
1404: &Apache::edit::end_row().
1405: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1406: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1407: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1408: }
1409: if ($target eq 'modified') {
1.219 albertel 1410: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1411: }
1412: if ($target eq 'tex') {
1413: $result .= '\noindent ';
1414: }
1415: return $result;
1.34 albertel 1416: }
1.159 albertel 1417:
1.34 albertel 1418: sub start_endouttext {
1.159 albertel 1419: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1420: my $result='';
1421: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1422: if ($target eq "modified") {
1423: $result='<endouttext />'.
1424: &Apache::edit::handle_insertafter('startouttext'); }
1425: return $result;
1.34 albertel 1426: }
1.159 albertel 1427:
1.34 albertel 1428: sub end_endouttext {
1.159 albertel 1429: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1430: my @result=('','');
1431: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1432: return (@result);
1.34 albertel 1433: }
1.159 albertel 1434:
1.45 albertel 1435: sub delete_startouttext {
1.159 albertel 1436: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1437: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1438: my $text=$$parser['-1']->get_text("/endouttext");
1439: my $ntoken=$$parser['-1']->get_token();
1440: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1441: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1442: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1443: # they did the last time round
1444: &Apache::lonxml::increasedepth($ntoken);
1445: &Apache::lonxml::decreasedepth($ntoken);
1446: return 1;
1.193 www 1447: }
1448:
1449: sub start_simpleeditbutton {
1450: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1451: my $result='';
1.284 albertel 1452: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1453: ($target eq 'web') &&
1.284 albertel 1454: (&Apache::lonnet::allowed('srm',$env{'request.course.id'}))) {
1455: my $url=$env{'request.noversionuri'};
1.193 www 1456: $url=~s/\?.*$//;
1.278 albertel 1457: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1458: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1459: '<a href="'.$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 1460: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1461: }
1462: return $result;
1463: }
1464:
1465: sub end_simpleeditbutton {
1466: return '';
1.45 albertel 1467: }
1.34 albertel 1468:
1.1 albertel 1469: 1;
1470: __END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to structuretags.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / homework