Annotation of loncom/homework/structuretags.pm, revision 1.292
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.292 ! raeburn 4: # $Id: structuretags.pm,v 1.291 2005/04/29 21:22:33 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);
91: if ($env{'environment.texengine'} eq 'jsMath') {
92: $body_tag_start.='<script type="text/javascript">
93: function NoFontMessage () {}
94: </script>'."\n".
95: '<script src="/adm/jsMath/jsMath.js"></script>'."\n";
96: }
97: return $body_tag_start;
98: }
1.291 albertel 99:
1.48 albertel 100: sub page_start {
1.159 albertel 101: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
102: my %found;
1.207 albertel 103: foreach my $taginside (@$tagstack) {
1.159 albertel 104: foreach my $taglookedfor ('html','body','form') {
105: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
106: }
107: }
108:
109: my $result;
110: my $head_tag_start;
111: if (!defined($found{'html'})) {
112: $result=&Apache::londefdef::start_html($target,$token,$tagstack,
113: $parstack,$parser,$safeeval);
1.254 www 114: $head_tag_start='<head>'.&Apache::lonmenu::registerurl(undef,$target).
1.261 www 115: &Apache::lonhtmlcommon::htmlareaheaders().
1.270 albertel 116: &Apache::lonhtmlcommon::spellheader().
117: &Apache::lonxml::fontsettings();
1.159 albertel 118: }
119: my $body_tag_start;
1.284 albertel 120: if (!defined($found{'body'}) && $env{'request.state'} eq 'construct'
121: && $env{'environment.remote'} eq 'off') {
1.272 albertel 122: $body_tag_start=&Apache::loncommon::bodytag();
1.274 albertel 123: $body_tag_start.=&Apache::lonxml::message_location();
1.272 albertel 124: } elsif (!defined($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);
129: $body_tag_start=&body_tag_start($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 {
! 376: my $last_reset = &get_last_reset($symb,$cdomain,$cname,$part);
! 377: if ($last_reset) {
! 378: if (&get_num_tries($last_reset,$part) == 0) {
! 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:
1.292 ! raeburn 391: # ----------- Timestamp of last reset of aggregates
! 392: sub get_last_reset {
! 393: my ($symb,$cdomain,$cname,$part) =@_;
! 394: my $last_reset = '';
! 395: my %resethash = &Apache::lonnet::restore($symb,'nohist_resourcetracker',$cdomain,$cname);
! 396: if ($resethash{'version'}) {
! 397: for (my $version=$resethash{'version'};$version>=1;$version--) {
! 398: if (exists($resethash{$version.':'.$part."\0".'prev_attempts'})) {
! 399: $last_reset = $resethash{$version.':timestamp'};
! 400: last;
! 401: }
! 402: }
1.289 albertel 403: }
1.292 ! raeburn 404: return $last_reset;
1.285 raeburn 405: }
406:
1.292 ! raeburn 407: # ----------- Provides number of tries since last reset of aggregates
! 408: sub get_num_tries {
! 409: my ($last_reset,$part) = @_;
! 410: my $timestamp = '';
! 411: my $num_tries = 0;
! 412: if ($Apache::lonhomework::history{'version'}) {
! 413: for (my $version=$Apache::lonhomework::history{'version'};$version>=1;$version--) {
! 414: if (exists($Apache::lonhomework::history{$version.':resource.'.$part.'.solved'})) {
! 415: $timestamp = $Apache::lonhomework::history{$version.':timestamp'};
! 416: if ($timestamp > $last_reset) {
! 417: $num_tries ++;
! 418: } else {
! 419: last;
! 420: }
! 421: }
! 422: }
! 423: }
! 424: return $num_tries;
! 425: }
! 426:
! 427:
1.65 albertel 428: sub checkout_msg {
1.211 albertel 429: my %lt=&Apache::lonlocal::texthash(
430: 'resource'=>'The resource needs to be checked out',
431: 'id_expln'=>'As a resource gets checked out, a unique timestamped ID is given to it, and a permanent record is left in the system.',
432: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
433: 'checkout'=>'Check out Exam for Viewing',
434: 'checkout?'=>'Check out Exam?');
1.159 albertel 435: return (<<ENDCHECKOUT);
1.211 albertel 436: <h2>$lt{'resource'}</h2>
437: <p>$lt{'id_expln'}</p>
438: <font color="red">
439: <p>$lt{'warning'}</p>
1.91 albertel 440: </font>
1.284 albertel 441: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.91 albertel 442: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 443: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 444: </form>
445: ENDCHECKOUT
446: }
447:
1.252 albertel 448: sub firstaccess_msg {
1.253 albertel 449: my ($time,$symb)=@_;
450: my ($map)=&Apache::lonnet::decode_symb($symb);
451: my $foldertitle=&Apache::lonnet::gettitle($map);
452: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.252 albertel 453: return (<<ENDCHECKOUT);
1.253 albertel 454: <h2>The resources in "$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 455: <form name="markaccess" method="POST" action="$env{'request.uri'}">
1.252 albertel 456: <input type="hidden" name="markaccess" value="yes" />
457: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
458: </form>
459: ENDCHECKOUT
460: }
461:
1.204 albertel 462: sub init_problem_globals {
463: my ($type)=@_;
464: #initialize globals
465: if ($type eq 'problem') {
466: $Apache::inputtags::part='0';
467: @Apache::inputtags::partlist=('0');
1.266 albertel 468: $Apache::lonhomework::problemstatus=&get_problem_status('0');
469: $Apache::lonhomework::ignore_response_errors=0;
470: } elsif ($type eq 'library') {
1.204 albertel 471: $Apache::inputtags::part='';
472: @Apache::inputtags::partlist=();
473: $Apache::lonhomework::problemstatus='';
1.266 albertel 474: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 475: }
476: @Apache::inputtags::responselist = ();
477: @Apache::inputtags::importlist = ();
478: @Apache::inputtags::previous=();
479: @Apache::inputtags::previous_version=();
480: $Apache::structuretags::printanswer='No';
481: @Apache::structuretags::whileconds=();
482: @Apache::structuretags::whilebody=();
483: @Apache::structuretags::whileline=();
484: $Apache::lonhomework::scantronmode=0;
485: undef($Apache::lonhomework::name);
486:
487: }
488:
489: sub reset_problem_globals {
490: my ($type)=@_;
491: undef(%Apache::lonhomework::history);
492: undef(%Apache::lonhomework::results);
493: undef($Apache::inputtags::part);
1.208 albertel 494: #don't undef this, lonhomework.pm takes care of this, we use this to
495: #detect if we try to do 2 problems in one file
496: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 497: undef($Apache::lonhomework::name);
498: }
499:
1.241 albertel 500: sub set_problem_state {
1.240 albertel 501: my ($part)=@_;
1.284 albertel 502: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 503: $Apache::lonhomework::history{"resource.$part.solved"}=
504: 'correct_by_student';
505: }
506: }
507:
1.241 albertel 508: sub get_problem_status {
509: my ($part)=@_;
1.267 albertel 510: my $problem_status;
1.284 albertel 511: if ($env{'request.state'} eq 'construct' &&
512: defined($env{'form.problemstatus'})) {
513: $problem_status=$env{'form.problemstatus'};
1.267 albertel 514: } else {
515: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
516: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 517: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 518: }
519: return $problem_status;
520: }
521:
1.9 albertel 522: sub start_problem {
1.159 albertel 523: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 524:
1.184 albertel 525: if ( $Apache::inputtags::part ne '' ||
526: $Apache::lonhomework::parsing_a_problem) {
527: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
528: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
1.159 albertel 529: return '';
530: }
1.184 albertel 531:
532: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 533: &init_problem_globals('problem');
1.166 albertel 534:
1.284 albertel 535: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 536: $Apache::lonhomework::scantronmode=1;
537: }
1.161 albertel 538:
1.246 albertel 539: &initialize_storage();
1.159 albertel 540: if ($target ne 'analyze') {
541: if ($target eq 'web') {
542: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 543: }
1.284 albertel 544: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 545: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 546: if (($env{'request.state'} eq 'construct') &&
547: defined($env{'form.problemtype'})) {
548: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 549: }
1.240 albertel 550: &Apache::lonxml::debug("Found this to be of type :$Apache::ltonhomework::type:");
1.159 albertel 551: }
1.164 albertel 552: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 553: my $uri=$env{'request.uri'};
1.159 albertel 554: if ($uri=~/\.(\w+)$/) {
555: $Apache::lonhomework::type=$1;
556: &Apache::lonxml::debug("Using type of $1");
557: } else {
558: $Apache::lonhomework::type='problem';
559: &Apache::lonxml::debug("Using default type, problem, :$uri:");
560: }
1.87 albertel 561: }
1.58 www 562:
1.159 albertel 563: #added vars to the scripting enviroment
1.213 albertel 564: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 565: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 566: &Apache::run::run($expression,$safeeval);
1.159 albertel 567: my $status;
568: my $accessmsg;
569:
570: #should get back a <html> or the neccesary stuff to start XML/MathML
571: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
572: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.284 albertel 573: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 574:
575: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
576: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
577: $target eq 'tex') {
578: #handle exam checkout
579: if ($Apache::lonhomework::type eq 'exam') {
580: my $token=
581: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 582: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 583: $token=&Apache::lonxml::maketoken();
584: $Apache::lonhomework::history{"resource.0.outtoken"}=
585: $token;
586: }
587: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 588: }
1.284 albertel 589: if ($env{'form.markaccess'}) {
1.252 albertel 590: &Apache::lonnet::set_first_access('map');
591: }
1.159 albertel 592: #handle rand seed in construction space
593: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 594: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 595: if ($env{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 596: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
597: $rndseed.'" />'.
598: '<input type="submit" name="resetdata"
1.211 albertel 599: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 600: '<input type="hidden" name="username"
1.284 albertel 601: value="'.$env{'form.username'}.'" />';
602: if ($env{'user.adv'}) {
1.267 albertel 603: $form_tag_start.=
604: ' <input type="checkbox" name="showallfoils" ';
1.284 albertel 605: if (defined($env{'form.showallfoils'})) {
1.267 albertel 606: $form_tag_start.='checked="on"';
607: }
608: $form_tag_start.= ' />'.&mt(' Show All Foils');
609: }
610: $form_tag_start.='<hr />';
1.162 albertel 611: }
1.159 albertel 612: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
613: push (@Apache::inputtags::status,$status);
614: my $expression='$external::datestatus="'.$status.'";';
615: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
616: &Apache::run::run($expression,$safeeval);
617: &Apache::lonxml::debug("Got $status");
618: if (( $status eq 'CLOSED' ) ||
619: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 620: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 621: ( $status eq 'BANNED') ||
1.216 albertel 622: ( $status eq 'UNAVAILABLE') ||
623: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 624: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
625: if ( $target eq "web" ) {
626: $result.= $head_tag_start.'</head>';
627: my $msg=$body_tag_start;
628: if ($status eq 'UNAVAILABLE') {
1.245 albertel 629: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 630: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 631: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 632: }
1.216 albertel 633: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 634: $msg.='The problem '.$accessmsg;
635: } elsif ($status eq 'UNCHECKEDOUT') {
636: $msg.=&checkout_msg;
1.252 albertel 637: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 638: $msg.=&firstaccess_msg($accessmsg,$symb);
1.159 albertel 639: }
640: $result.=$msg.'<br />';
641: } elsif ($target eq 'tex') {
642: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
643: if ($status eq 'UNAVAILABLE') {
1.211 albertel 644: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 645: } else {
1.211 albertel 646: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 647: }
648: }
649: } elsif ($target eq 'web') {
650: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 651: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 652: $body_tag_start \n $form_tag_start".
1.227 albertel 653: '<input type="hidden" name="submitted" value="yes" />';
654: # create a page header and exit
1.284 albertel 655: if ($env{'request.state'} eq "construct") {
656: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 657: }
658: # if we are viewing someone else preserve that info
1.284 albertel 659: if (defined $env{'form.grade_symb'}) {
1.227 albertel 660: foreach my $field ('symb','courseid','domain','username') {
661: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 662: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 663: }
664: }
665: } elsif ($target eq 'tex') {
1.192 sakharuk 666: my $startminipage = '';
1.284 albertel 667: if (not $env{'form.problem_split'}=~/yes/) {
1.192 sakharuk 668: $startminipage = '\begin{minipage}{\textwidth}';
1.178 sakharuk 669: }
1.159 albertel 670: my $id = $Apache::inputtags::part;
671: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 672: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.223 sakharuk 673: my @packages = split /,/,$packages;
674: my $allow_print_points = 0;
675: foreach my $partial_key (@packages) {
1.230 albertel 676: if ($partial_key=~m/^part_0$/) {
1.223 sakharuk 677: $allow_print_points=1;
1.159 albertel 678: }
679: }
1.276 albertel 680: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
681: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1.159 albertel 682: my $duedate = &Apache::lonnet::EXT("resource.$id.duedate");
683: $duedate = POSIX::strftime("%c",localtime($duedate));
684: my $temp_file;
1.284 albertel 685: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1.159 albertel 686: if (-e $filename) {
687: $temp_file = Apache::File->new($filename);
688: } else {
689: $temp_file = Apache::File->new('>>'.$filename);
690: }
691: my @due_file_content = <$temp_file>;
692: my $due_file_content = $due_file_content[$#due_file_content];
693: chomp $due_file_content;
1.257 sakharuk 694: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.159 albertel 695: if ($due_file_content ne $duedate) {
696: $temp_file = Apache::File->new('>'.$filename);
697: print $temp_file "$duedate\n";
1.284 albertel 698: if (not $env{'request.symb'} =~ m/\.page_/) {
1.159 albertel 699: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1.284 albertel 700: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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 701: } else {
1.284 albertel 702: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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}{'.$name_of_resourse.'}';
1.159 albertel 703: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
704: }
1.104 sakharuk 705: } else {
1.159 albertel 706: $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
1.104 sakharuk 707: }
1.101 sakharuk 708: } else {
1.284 albertel 709: if (not $env{'request.symb'} =~ m/\.page_/) {
710: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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}{'.$name_of_resourse.'}';
1.159 albertel 711: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
712: } else {
713: $result .= '\vskip 1mm \\\\\\\\';
714: }
715: }
1.99 sakharuk 716: }
1.159 albertel 717: } elsif ($target eq 'edit') {
718: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
719: &problem_edit_header();
1.226 albertel 720: $Apache::lonxml::warnings_error_header=
721: &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 722: my $temp=&Apache::edit::insertlist($target,$token);
723: $result.=$temp;
724: } elsif ($target eq 'modified') {
725: $result=$token->[4];
726: $result.=&Apache::edit::handle_insert();
727: } else {
728: # page_start returned a starting result, delete it if we don't need it
729: $result = '';
1.99 sakharuk 730: }
1.159 albertel 731: return $result;
1.9 albertel 732: }
733:
734: sub end_problem {
1.159 albertel 735: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
736: my $result='';
737: my $status=$Apache::inputtags::status['-1'];
738: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
739: $target eq 'tex') {
1.249 albertel 740: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 741: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 742: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
743: &Apache::inputtags::grade;
744: } else {
745: # move any submission data to .hidden
746: &Apache::inputtags::hidealldata($Apache::inputtags::part);
747: }
1.159 albertel 748: } elsif ( ($target eq 'web' || $target eq 'tex') &&
749: $Apache::inputtags::part eq '0' &&
1.252 albertel 750: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 751: # if part is zero, no <part>s existed, so we need show the current
752: # grading status
753: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
754: $result.= $gradestatus;
755: }
756: if (
1.284 albertel 757: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 758: ($target eq 'answer') || ($target eq 'tex')
759: ) {
1.227 albertel 760: if ($target ne 'tex' &&
1.284 albertel 761: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 762: $result.="</form>";
763: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
1.159 albertel 764: }
765: if ($target eq 'web') {
1.281 albertel 766: $result.=&Apache::lonxml::xmlend().'</html>';
1.159 albertel 767: } elsif ($target eq 'tex') {
1.178 sakharuk 768: my $endminipage = '';
1.284 albertel 769: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 770: $endminipage = '\end{minipage}';
771: }
1.284 albertel 772: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 773: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 774: $result=~s/<\/html>//;
1.159 albertel 775: } else {
1.262 sakharuk 776: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 777: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 778: $result .= $endminipage.'\end{document} ';
779: } else {
780: $result .= '';
781: }
1.159 albertel 782: }
783: }
784: }
785: if ($target eq 'grade') {
786: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
787: &finalize_storage();
788: }
1.284 albertel 789: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
790: && $env{'form.answer_output_mode'} ne 'tex') {
1.172 albertel 791: $result.='</html>'; # normally we get it from xmlend, but in CSTR
792: # we always show answer mode too.
1.159 albertel 793: }
794: } elsif ($target eq 'meta') {
795: if ($Apache::inputtags::part eq '0') {
1.179 albertel 796: @Apache::inputtags::response=();
1.159 albertel 797: $result=&Apache::response::mandatory_part_meta;
798: }
1.215 albertel 799: $result.=&Apache::response::meta_part_order();
1.258 albertel 800: $result.=&Apache::response::meta_response_order();
1.159 albertel 801: } elsif ($target eq 'edit') {
802: &Apache::lonxml::debug("in end_problem with $target, edit");
803: $result = &problem_edit_footer();
804: }
1.155 albertel 805:
1.284 albertel 806: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 807: &Apache::inputtags::check_for_duplicate_ids();
808: }
1.204 albertel 809:
810: &reset_problem_globals('problem');
1.159 albertel 811:
812: return $result;
1.48 albertel 813: }
814:
1.108 albertel 815:
1.48 albertel 816: sub start_library {
1.159 albertel 817: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
818: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 819: if ($$tagstack[0] eq 'library') {
820: &init_problem_globals('library');
821: $Apache::lonhomework::type='problem';
822: }
1.159 albertel 823: if ($target eq 'edit') {
824: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
825: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
826: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
827: &problem_edit_header();
828: my $temp=&Apache::edit::insertlist($target,$token);
829: $result.=$temp;
830: } elsif ($target eq 'modified') {
831: $result=$token->[4];
832: $result.=&Apache::edit::handle_insert();
833: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 834: $env{'request.state'} eq "construct" ) {
1.159 albertel 835: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
836: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
837: my $name=&get_resource_name($parstack,$safeeval);
838: my $rndseed=&setup_rndseed($safeeval);
839: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 840: $body_tag_start \n $form_tag_start".
1.159 albertel 841: '<input type="hidden" name="submitted" value="yes" />';
842: $result.=&problem_web_to_edit_header($rndseed);
843: }
844: return $result;
1.48 albertel 845: }
846:
847: sub end_library {
1.159 albertel 848: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
849: my $result='';
850: if ($target eq 'edit') {
851: $result=&problem_edit_footer();
852: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 853: $env{'request.state'} eq "construct") {
1.280 albertel 854: $result.='</form>'.&Apache::loncommon::endbodytag().
855: &Apache::lonxml::xmlend();
1.159 albertel 856: }
1.204 albertel 857: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 858: return $result;
1.197 www 859: }
860:
861: sub start_definetag {
862: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
863:
864: my $result;
865:
866: my $name = $token->[2]->{'name'};
867: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
868: if ($name=~/^\//) {
869: $result=
870: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
871: } else {
872: $result=
873: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
874: }
875: $skip=~s/\</\<\;/gs;
876: $skip=~s/\>/\>\;/gs;
877: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
878: return $result;
879: }
880:
881: sub end_definetag {
882: return '';
1.1 albertel 883: }
884:
885: sub start_block {
1.201 albertel 886: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 887:
888: my $result;
1.1 albertel 889:
1.160 albertel 890: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 891: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 892: my $code = $token->[2]->{'condition'};
1.201 albertel 893: if (defined($code)) {
1.137 albertel 894: if (!$Apache::lonxml::default_homework_loaded) {
895: &Apache::lonxml::default_homework_load($safeeval);
896: }
1.131 albertel 897: $result = &Apache::run::run($code,$safeeval);
898: &Apache::lonxml::debug("block :$code: returned :$result:");
899: } else {
900: $result='1';
901: }
902: if ( ! $result ) {
1.201 albertel 903: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 904: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
905: }
906: $result='';
907: } elsif ($target eq 'edit') {
908: $result .=&Apache::edit::tag_start($target,$token);
909: $result .=&Apache::edit::text_arg('Test Condition:','condition',
910: $token,40);
911: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
912: } elsif ($target eq 'modified') {
913: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
914: $safeeval,'condition');
915: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 916: }
1.131 albertel 917: return $result;
1.1 albertel 918: }
919:
920: sub end_block {
1.167 www 921: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
922: my $result;
923: if ($target eq "edit") {
924: $result.= &Apache::edit::tag_end($target,$token,'');
925: }
926: return $result;
927: }
928:
929: sub start_languageblock {
1.201 albertel 930: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 931:
932: my $result;
933:
934: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
935: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 936: my $include = $token->[2]->{'include'};
937: my $exclude = $token->[2]->{'exclude'};
938: my %languages=&Apache::loncommon::display_languages();
939: $result='1';
940: if ($include) {
941: $result='';
942: foreach (split(/\,/,$include)) {
943: if ($languages{$_}) { $result='1'; }
944: }
945: }
946: if ($exclude) {
947: foreach (split(/\,/,$exclude)) {
948: if ($languages{$_}) { $result='0'; }
949: }
950: }
951: if ( ! $result ) {
952: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
953: $style);
954: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
955: }
956: $result='';
1.167 www 957: } elsif ($target eq 'edit') {
958: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 959: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 960: $token,40);
1.211 albertel 961: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 962: $token,40);
963: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
964: } elsif ($target eq 'modified') {
965: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 966: $safeeval,'include',
967: 'exclude');
1.167 www 968: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
969: }
970: return $result;
971: }
972:
973: sub end_languageblock {
1.170 www 974: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
975: my $result;
1.201 albertel 976: if ($target eq "edit") {
1.170 www 977: $result.= &Apache::edit::tag_end($target,$token,'');
978: }
979: return $result;
980: }
981:
982: sub start_instructorcomment {
1.201 albertel 983: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 984:
985: my $result;
986:
987: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
988: $target eq 'tex' || $target eq 'analyze') {
1.284 albertel 989: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
990: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 991: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
992: $parser,$style);
1.170 www 993: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
994: }
995: $result='';
996: } elsif ($target eq 'edit') {
997: $result .=&Apache::edit::tag_start($target,$token);
998: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
999: }
1000: return $result;
1001: }
1002:
1003: sub end_instructorcomment {
1.159 albertel 1004: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1005: my $result;
1006: if ($target eq "edit") {
1007: $result.= &Apache::edit::tag_end($target,$token,'');
1008: }
1009: return $result;
1.4 tsai 1010: }
1011:
1012: sub start_while {
1.159 albertel 1013: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1014:
1.160 albertel 1015: my $result;
1.161 albertel 1016: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 1017: $target eq 'tex' || $target eq 'analyze') {
1018: my $code = $token->[2]->{'condition'};
1.4 tsai 1019:
1.160 albertel 1020: push( @Apache::structuretags::whileconds, $code);
1021: if (!$Apache::lonxml::default_homework_loaded) {
1022: &Apache::lonxml::default_homework_load($safeeval);
1023: }
1024: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 1025: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 1026: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1027: push( @Apache::structuretags::whileline, $token->[5]);
1028: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1029: if ( $result ) {
1030: &Apache::lonxml::newparser($parser,\$bodytext);
1031: }
1032: } elsif ($target eq 'edit') {
1033: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1034: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1035: $token,40);
1036: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1037: } elsif ($target eq 'modified') {
1038: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1039: $safeeval,'condition');
1040: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1041: }
1.160 albertel 1042: return $result;
1.4 tsai 1043: }
1044:
1045: sub end_while {
1.159 albertel 1046: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1047: my $result;
1048:
1049: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1050: $target eq 'tex' || $target eq 'analyze') {
1051: my $code = pop(@Apache::structuretags::whileconds);
1052: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1053: my $line = pop(@Apache::structuretags::whileline);
1054: my $return = &Apache::run::run($code,$safeeval);
1055: my $starttime=time;
1056: my $error=0;
1057: while ($return) {
1058: if (time-$starttime >
1059: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1060: #$return = 0; $error=1; next;
1.161 albertel 1061: }
1062: $result.=&Apache::scripttag::xmlparse($bodytext);
1063: $return = &Apache::run::run($code,$safeeval);
1064: }
1065: if ($error) {
1.270 albertel 1066: &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 1067: }
1068: } elsif ($target eq "edit") {
1069: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1070: }
1.160 albertel 1071: return $result;
1.1 albertel 1072: }
1.6 tsai 1073:
1.160 albertel 1074: # <randomlist show="1">
1.6 tsai 1075: # <tag1>..</tag1>
1076: # <tag2>..</tag2>
1077: # <tag3>..</tag3>
1.160 albertel 1078: # ...
1.6 tsai 1079: # </randomlist>
1080: sub start_randomlist {
1.159 albertel 1081: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1082: my $result;
1083: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1084: $target eq 'tex' || $target eq 'analyze') {
1085: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1086: my $b_parser= HTML::TokeParser->new(\$body);
1087: my $b_tok;
1088: my @randomlist;
1089: my $list_item;
1090: while($b_tok = $b_parser->get_token() ) {
1091: if($b_tok->[0] eq 'S') { # start tag
1092: # get content of the tag until matching end tag
1093: # get all text upto the matching tag
1094: # and push the content into @randomlist
1095: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1096: $b_parser);
1097: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1098: push(@randomlist,$list_item);
1099: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1100: # $list_item</b>";
1101: }
1102: if($b_tok->[0] eq 'T') { # text
1103: # what to do with text in between tags?
1104: # print "<b>TEXT $b_tok->[1]</b><br />";
1105: }
1106: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1107: # print "<b>END-TAG $b_tok->[1]</b><br />";
1108: # }
1109: }
1110: my @idx_arr = (0 .. $#randomlist);
1111: &Apache::structuretags::shuffle(\@idx_arr);
1112: my $bodytext = '';
1113: my $show=$#randomlist;
1114: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1115: $showarg--;
1116: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1117: for(0 .. $show) {
1118: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1119: }
1120: &Apache::lonxml::newparser($parser,\$bodytext);
1121: } elsif ($target eq 'edit' ) {
1122: $result .=&Apache::edit::tag_start($target,$token);
1123: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1124: $token,5);
1125: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1126: } elsif ($target eq 'modified' ) {
1127: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1128: $safeeval,'show');
1129: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1130: }
1131: return $result;
1.7 tsai 1132: }
1133:
1134: sub shuffle {
1135: my $a=shift;
1136: my $i;
1.70 albertel 1137: if (defined(@$a)) {
1.251 albertel 1138: &Apache::response::pushrandomnumber();
1.159 albertel 1139: for($i=@$a;--$i;) {
1140: my $j=int(&Math::Random::random_uniform() * ($i+1));
1141: next if $i == $j;
1142: @$a[$i,$j] = @$a[$j,$i];
1143: }
1.251 albertel 1144: &Apache::response::poprandomnumber();
1.7 tsai 1145: }
1.6 tsai 1146: }
1147:
1148: sub end_randomlist {
1.159 albertel 1149: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1150: my $result;
1151: if ($target eq 'edit' ) {
1152: $result=&Apache::edit::tag_end($target,$token,
1153: 'End Randomly Parsed Block');
1154: }
1155: return $result;
1.6 tsai 1156: }
1157:
1.283 albertel 1158: sub ordered_show_check {
1159: my $last_part=$Apache::inputtags::partlist[-2];
1160: my $in_order=
1161: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1162: my $in_order_show=1;
1163: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1164: $in_order_show=&Apache::response::check_status($last_part);
1165: }
1166: return $in_order_show;
1167: }
1168:
1.11 albertel 1169: sub start_part {
1.159 albertel 1170: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1171: my $result='';
1172: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1173: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
1174: $Apache::inputtags::part=$id;
1.177 albertel 1175: push(@Apache::inputtags::partlist,$id);
1176: @Apache::inputtags::response=();
1.159 albertel 1177: @Apache::inputtags::previous=();
1178: @Apache::inputtags::previous_version=();
1.241 albertel 1179: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1180: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1181: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1182: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1183: my $in_order_show=&ordered_show_check();
1.214 albertel 1184: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1185: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1186: &Apache::run::run($expression,$safeeval);
1.159 albertel 1187:
1188: if ($target eq 'meta') {
1.224 www 1189: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1190: return &Apache::response::mandatory_part_meta.
1191: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1192: } elsif ($target eq 'web' || $target eq 'grade' ||
1193: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1194: if ($hidden || !$in_order_show) {
1.159 albertel 1195: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1196: } else {
1197: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1198: push (@Apache::inputtags::status,$status);
1199: my $expression='$external::datestatus="'.$status.'";';
1200: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1201: &Apache::run::run($expression,$safeeval);
1.284 albertel 1202: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1203: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1204: }
1.216 albertel 1205: if (( $status eq 'CLOSED' ) ||
1206: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1207: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1208: ( $status eq 'BANNED') ||
1209: ( $status eq 'UNAVAILABLE') ||
1210: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 1211: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1212: if ( $target eq "web" ) {
1.211 albertel 1213: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1214: } elsif ( $target eq 'tex' ) {
1.284 albertel 1215: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1216: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1217: } else {
1.211 albertel 1218: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1219: }
1.159 albertel 1220: }
1221: } else {
1222: if ($target eq 'tex') {
1.284 albertel 1223: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1224: if ($$tagstack[-2] eq 'td') {
1225: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1226: } else {
1227: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1228: }
1.195 sakharuk 1229: }
1.159 albertel 1230: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1231: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1232: my @allkeys = split /,/,$allkeys;
1233: my $allow_print_points = 0;
1234: foreach my $partial_key (@allkeys) {
1.230 albertel 1235: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1236: if ($1 ne '0') {$allow_print_points=1;}
1237: }
1238: }
1.275 albertel 1239: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1240: if (defined($maxtries) && $maxtries < 0) {
1241: $allow_print_points=0;
1242: }
1.222 sakharuk 1243: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1244: } elsif ($target eq 'web') {
1245: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1246: }
1247: }
1248: }
1249: } elsif ($target eq 'edit') {
1250: $result.=&Apache::edit::tag_start($target,$token);
1251: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1252: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1253: ' '.
1254: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1255: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1256: } elsif ($target eq 'modified') {
1257: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1258: $safeeval,'id','display');
1.159 albertel 1259: if ($constructtag) {
1.225 albertel 1260: #limiting ids to only letters numbers, and space
1.224 www 1261: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1262: $result = &Apache::edit::rebuild_tag($token);
1263: $result.=&Apache::edit::handle_insert();
1264: }
1265: }
1266: return $result;
1.11 albertel 1267: }
1268:
1269: sub end_part {
1.159 albertel 1270: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1271: &Apache::lonxml::debug("in end_part $target ");
1272: my $status=$Apache::inputtags::status['-1'];
1273: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1274: my $in_order_show=&ordered_show_check();
1.159 albertel 1275: my $result='';
1276: if ( $target eq 'meta' ) {
1277: $result='';
1.249 albertel 1278: } elsif ($target eq 'grade') {
1279: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1280: !$hidden && $in_order_show) {
1.249 albertel 1281: $result=&Apache::inputtags::grade;
1282: } else {
1283: # move any submission data to .hidden
1284: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1285: }
1.283 albertel 1286: } elsif (($target eq 'web' || $target eq 'tex') &&
1287: !$hidden && $in_order_show) {
1.159 albertel 1288: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1289: $target);
1.212 albertel 1290: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1291: $gradestatus='';
1292: }
1.159 albertel 1293: $result=$gradestatus;
1.265 sakharuk 1294: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1295: } elsif ($target eq 'edit') {
1296: $result=&Apache::edit::end_table();
1.159 albertel 1297: }
1298: pop @Apache::inputtags::status;
1299: $Apache::inputtags::part='';
1300: return $result;
1.11 albertel 1301: }
1.1 albertel 1302:
1.25 albertel 1303: sub start_preduedate {
1.159 albertel 1304: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1305: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1.236 albertel 1306: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.159 albertel 1307: if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1308: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1309: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.159 albertel 1310: &Apache::lonxml::get_all_text("/preduedate",$parser);
1311: }
1.24 albertel 1312: }
1.159 albertel 1313: return '';
1.24 albertel 1314: }
1315:
1.25 albertel 1316: sub end_preduedate {
1.159 albertel 1317: return '';
1.24 albertel 1318: }
1319:
1.25 albertel 1320: sub start_postanswerdate {
1.159 albertel 1321: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.234 albertel 1322: if ($target eq 'web' || $target eq 'grade') {
1.159 albertel 1323: if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1324: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1325: }
1326: } elsif ($target eq 'tex') {
1.234 albertel 1327: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1.159 albertel 1328: }
1329: return '';
1.24 albertel 1330: }
1331:
1.25 albertel 1332: sub end_postanswerdate {
1.159 albertel 1333: return '';
1.24 albertel 1334: }
1335:
1.25 albertel 1336: sub start_notsolved {
1.159 albertel 1337: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1338: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1339: $target eq 'tex') {
1340: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1341: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1342: if ($gradestatus =~ /^correct/ &&
1343: &Apache::response::show_answer()) {
1.159 albertel 1344: &Apache::lonxml::debug("skipping");
1345: &Apache::lonxml::get_all_text("/notsolved",$parser);
1346: }
1.24 albertel 1347: }
1.159 albertel 1348: return '';
1.24 albertel 1349: }
1350:
1.25 albertel 1351: sub end_notsolved {
1.159 albertel 1352: return '';
1.24 albertel 1353: }
1354:
1355: sub start_solved {
1.159 albertel 1356: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1357: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1358: $target eq 'tex') {
1359: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1360: if ($gradestatus !~ /^correct/ ||
1361: !&Apache::response::show_answer()) {
1.159 albertel 1362: &Apache::lonxml::get_all_text("/solved",$parser);
1363: }
1.24 albertel 1364: }
1.159 albertel 1365: return '';
1.24 albertel 1366: }
1367:
1368: sub end_solved {
1.248 albertel 1369: return '';
1370: }
1371:
1372: sub start_problemtype {
1373: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1374: my $result;
1375: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1376: $target eq 'tex' || $target eq 'analyze') {
1377: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1378: if (!defined($mode)) { $mode='show'; }
1379: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1380: my $found=0;
1381: foreach my $type (split(',',$for)) {
1382: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1383: }
1384: if ($mode eq 'show' && !$found) {
1385: &Apache::lonxml::get_all_text("/problemtype",$parser);
1386: }
1387: if ($mode eq 'hide' && $found) {
1388: &Apache::lonxml::get_all_text("/problemtype",$parser);
1389: }
1390: } elsif ($target eq 'edit') {
1391: $result .=&Apache::edit::tag_start($target,$token);
1392: $result.=&Apache::edit::select_arg('Mode:','mode',
1393: [['show','Show'],
1394: ['hide','Hide']]
1395: ,$token);
1396: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1397: [ ['exam','Exam/Quiz Problem'],
1398: ['survey','Survey'],
1399: ['problem','Homework Problem'] ]
1400: ,$token);
1401: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1402: } elsif ($target eq 'modified') {
1403: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1404: $safeeval,'mode','for');
1405: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1406: }
1407: return $result;
1408: }
1409:
1410: sub end_problemtype {
1.159 albertel 1411: return '';
1.24 albertel 1412: }
1.34 albertel 1413:
1414: sub start_startouttext {
1.159 albertel 1415: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1416: my @result=(''.'');
1417: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1418: return (@result);
1.34 albertel 1419: }
1.159 albertel 1420:
1.34 albertel 1421: sub end_startouttext {
1.159 albertel 1422: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1423: my $result='';
1424: my $text='';
1425:
1426: if ($target eq 'edit') {
1427: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1.211 albertel 1428: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1429: <td>".&mt('Delete:').
1.159 albertel 1430: &Apache::edit::deletelist($target,$token)
1431: ."</td>
1.42 albertel 1432: <td>".
1.159 albertel 1433: &Apache::edit::insertlist($target,$token).
1434: &Apache::edit::end_row().
1435: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1436: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1437: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1438: }
1439: if ($target eq 'modified') {
1.219 albertel 1440: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1441: }
1442: if ($target eq 'tex') {
1443: $result .= '\noindent ';
1444: }
1445: return $result;
1.34 albertel 1446: }
1.159 albertel 1447:
1.34 albertel 1448: sub start_endouttext {
1.159 albertel 1449: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1450: my $result='';
1451: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1452: if ($target eq "modified") {
1453: $result='<endouttext />'.
1454: &Apache::edit::handle_insertafter('startouttext'); }
1455: return $result;
1.34 albertel 1456: }
1.159 albertel 1457:
1.34 albertel 1458: sub end_endouttext {
1.159 albertel 1459: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1460: my @result=('','');
1461: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1462: return (@result);
1.34 albertel 1463: }
1.159 albertel 1464:
1.45 albertel 1465: sub delete_startouttext {
1.159 albertel 1466: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1467: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1468: my $text=$$parser['-1']->get_text("/endouttext");
1469: my $ntoken=$$parser['-1']->get_token();
1470: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1471: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1472: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1473: # they did the last time round
1474: &Apache::lonxml::increasedepth($ntoken);
1475: &Apache::lonxml::decreasedepth($ntoken);
1476: return 1;
1.193 www 1477: }
1478:
1479: sub start_simpleeditbutton {
1480: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1481: my $result='';
1.284 albertel 1482: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1483: ($target eq 'web') &&
1.284 albertel 1484: (&Apache::lonnet::allowed('srm',$env{'request.course.id'}))) {
1485: my $url=$env{'request.noversionuri'};
1.193 www 1486: $url=~s/\?.*$//;
1.278 albertel 1487: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1488: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1489: '<a href="'.$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 1490: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1491: }
1492: return $result;
1493: }
1494:
1495: sub end_simpleeditbutton {
1496: return '';
1.45 albertel 1497: }
1.34 albertel 1498:
1.1 albertel 1499: 1;
1500: __END__
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