Annotation of loncom/homework/structuretags.pm, revision 1.293
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.293 ! albertel 4: # $Id: structuretags.pm,v 1.292 2005/06/03 18:17:57 raeburn 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".$part."\0users"} = 1;
1.292 raeburn 375: } else {
1.293 ! albertel 376: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 377: if ($last_reset) {
1.293 ! albertel 378: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 379: $aggregate{$symb."\0".$part."\0users"} = 1;
380: }
381: }
1.285 raeburn 382: }
1.287 albertel 383: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 384: }
1.292 raeburn 385: if (keys (%aggregate) > 0) {
1.289 albertel 386: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 387: $cdomain,$cname);
388: }
389: }
1.289 albertel 390:
1.65 albertel 391: sub checkout_msg {
1.211 albertel 392: my %lt=&Apache::lonlocal::texthash(
393: 'resource'=>'The resource needs to be checked out',
394: 'id_expln'=>'As a resource gets checked out, a unique timestamped ID is given to it, and a permanent record is left in the system.',
395: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
396: 'checkout'=>'Check out Exam for Viewing',
397: 'checkout?'=>'Check out Exam?');
1.159 albertel 398: return (<<ENDCHECKOUT);
1.211 albertel 399: <h2>$lt{'resource'}</h2>
400: <p>$lt{'id_expln'}</p>
401: <font color="red">
402: <p>$lt{'warning'}</p>
1.91 albertel 403: </font>
1.284 albertel 404: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.91 albertel 405: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 406: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 407: </form>
408: ENDCHECKOUT
409: }
410:
1.252 albertel 411: sub firstaccess_msg {
1.253 albertel 412: my ($time,$symb)=@_;
413: my ($map)=&Apache::lonnet::decode_symb($symb);
414: my $foldertitle=&Apache::lonnet::gettitle($map);
415: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.252 albertel 416: return (<<ENDCHECKOUT);
1.253 albertel 417: <h2>The resources in "$foldertitle" are open for a limited time. Once you click the 'Show Resource' button below you have $time to complete all resources "$foldertitle".</h2>
1.284 albertel 418: <form name="markaccess" method="POST" action="$env{'request.uri'}">
1.252 albertel 419: <input type="hidden" name="markaccess" value="yes" />
420: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
421: </form>
422: ENDCHECKOUT
423: }
424:
1.204 albertel 425: sub init_problem_globals {
426: my ($type)=@_;
427: #initialize globals
428: if ($type eq 'problem') {
429: $Apache::inputtags::part='0';
430: @Apache::inputtags::partlist=('0');
1.266 albertel 431: $Apache::lonhomework::problemstatus=&get_problem_status('0');
432: $Apache::lonhomework::ignore_response_errors=0;
433: } elsif ($type eq 'library') {
1.204 albertel 434: $Apache::inputtags::part='';
435: @Apache::inputtags::partlist=();
436: $Apache::lonhomework::problemstatus='';
1.266 albertel 437: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 438: }
439: @Apache::inputtags::responselist = ();
440: @Apache::inputtags::importlist = ();
441: @Apache::inputtags::previous=();
442: @Apache::inputtags::previous_version=();
443: $Apache::structuretags::printanswer='No';
444: @Apache::structuretags::whileconds=();
445: @Apache::structuretags::whilebody=();
446: @Apache::structuretags::whileline=();
447: $Apache::lonhomework::scantronmode=0;
448: undef($Apache::lonhomework::name);
449:
450: }
451:
452: sub reset_problem_globals {
453: my ($type)=@_;
454: undef(%Apache::lonhomework::history);
455: undef(%Apache::lonhomework::results);
456: undef($Apache::inputtags::part);
1.208 albertel 457: #don't undef this, lonhomework.pm takes care of this, we use this to
458: #detect if we try to do 2 problems in one file
459: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 460: undef($Apache::lonhomework::name);
461: }
462:
1.241 albertel 463: sub set_problem_state {
1.240 albertel 464: my ($part)=@_;
1.284 albertel 465: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 466: $Apache::lonhomework::history{"resource.$part.solved"}=
467: 'correct_by_student';
468: }
469: }
470:
1.241 albertel 471: sub get_problem_status {
472: my ($part)=@_;
1.267 albertel 473: my $problem_status;
1.284 albertel 474: if ($env{'request.state'} eq 'construct' &&
475: defined($env{'form.problemstatus'})) {
476: $problem_status=$env{'form.problemstatus'};
1.267 albertel 477: } else {
478: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
479: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 480: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 481: }
482: return $problem_status;
483: }
484:
1.9 albertel 485: sub start_problem {
1.159 albertel 486: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 487:
1.184 albertel 488: if ( $Apache::inputtags::part ne '' ||
489: $Apache::lonhomework::parsing_a_problem) {
490: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
491: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
1.159 albertel 492: return '';
493: }
1.184 albertel 494:
495: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 496: &init_problem_globals('problem');
1.166 albertel 497:
1.284 albertel 498: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 499: $Apache::lonhomework::scantronmode=1;
500: }
1.161 albertel 501:
1.246 albertel 502: &initialize_storage();
1.159 albertel 503: if ($target ne 'analyze') {
504: if ($target eq 'web') {
505: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 506: }
1.284 albertel 507: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 508: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 509: if (($env{'request.state'} eq 'construct') &&
510: defined($env{'form.problemtype'})) {
511: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 512: }
1.240 albertel 513: &Apache::lonxml::debug("Found this to be of type :$Apache::ltonhomework::type:");
1.159 albertel 514: }
1.164 albertel 515: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 516: my $uri=$env{'request.uri'};
1.159 albertel 517: if ($uri=~/\.(\w+)$/) {
518: $Apache::lonhomework::type=$1;
519: &Apache::lonxml::debug("Using type of $1");
520: } else {
521: $Apache::lonhomework::type='problem';
522: &Apache::lonxml::debug("Using default type, problem, :$uri:");
523: }
1.87 albertel 524: }
1.58 www 525:
1.159 albertel 526: #added vars to the scripting enviroment
1.213 albertel 527: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 528: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 529: &Apache::run::run($expression,$safeeval);
1.159 albertel 530: my $status;
531: my $accessmsg;
532:
533: #should get back a <html> or the neccesary stuff to start XML/MathML
534: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
535: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.284 albertel 536: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 537:
538: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
539: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
540: $target eq 'tex') {
541: #handle exam checkout
542: if ($Apache::lonhomework::type eq 'exam') {
543: my $token=
544: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 545: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 546: $token=&Apache::lonxml::maketoken();
547: $Apache::lonhomework::history{"resource.0.outtoken"}=
548: $token;
549: }
550: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 551: }
1.284 albertel 552: if ($env{'form.markaccess'}) {
1.252 albertel 553: &Apache::lonnet::set_first_access('map');
554: }
1.159 albertel 555: #handle rand seed in construction space
556: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 557: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 558: if ($env{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 559: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
560: $rndseed.'" />'.
561: '<input type="submit" name="resetdata"
1.211 albertel 562: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 563: '<input type="hidden" name="username"
1.284 albertel 564: value="'.$env{'form.username'}.'" />';
565: if ($env{'user.adv'}) {
1.267 albertel 566: $form_tag_start.=
567: ' <input type="checkbox" name="showallfoils" ';
1.284 albertel 568: if (defined($env{'form.showallfoils'})) {
1.267 albertel 569: $form_tag_start.='checked="on"';
570: }
571: $form_tag_start.= ' />'.&mt(' Show All Foils');
572: }
573: $form_tag_start.='<hr />';
1.162 albertel 574: }
1.159 albertel 575: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
576: push (@Apache::inputtags::status,$status);
577: my $expression='$external::datestatus="'.$status.'";';
578: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
579: &Apache::run::run($expression,$safeeval);
580: &Apache::lonxml::debug("Got $status");
581: if (( $status eq 'CLOSED' ) ||
582: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 583: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 584: ( $status eq 'BANNED') ||
1.216 albertel 585: ( $status eq 'UNAVAILABLE') ||
586: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 587: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
588: if ( $target eq "web" ) {
589: $result.= $head_tag_start.'</head>';
590: my $msg=$body_tag_start;
591: if ($status eq 'UNAVAILABLE') {
1.245 albertel 592: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 593: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 594: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 595: }
1.216 albertel 596: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 597: $msg.='The problem '.$accessmsg;
598: } elsif ($status eq 'UNCHECKEDOUT') {
599: $msg.=&checkout_msg;
1.252 albertel 600: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 601: $msg.=&firstaccess_msg($accessmsg,$symb);
1.159 albertel 602: }
603: $result.=$msg.'<br />';
604: } elsif ($target eq 'tex') {
605: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
606: if ($status eq 'UNAVAILABLE') {
1.211 albertel 607: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 608: } else {
1.211 albertel 609: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 610: }
611: }
612: } elsif ($target eq 'web') {
613: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 614: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 615: $body_tag_start \n $form_tag_start".
1.227 albertel 616: '<input type="hidden" name="submitted" value="yes" />';
617: # create a page header and exit
1.284 albertel 618: if ($env{'request.state'} eq "construct") {
619: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 620: }
621: # if we are viewing someone else preserve that info
1.284 albertel 622: if (defined $env{'form.grade_symb'}) {
1.227 albertel 623: foreach my $field ('symb','courseid','domain','username') {
624: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 625: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 626: }
627: }
628: } elsif ($target eq 'tex') {
1.192 sakharuk 629: my $startminipage = '';
1.284 albertel 630: if (not $env{'form.problem_split'}=~/yes/) {
1.192 sakharuk 631: $startminipage = '\begin{minipage}{\textwidth}';
1.178 sakharuk 632: }
1.159 albertel 633: my $id = $Apache::inputtags::part;
634: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 635: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.223 sakharuk 636: my @packages = split /,/,$packages;
637: my $allow_print_points = 0;
638: foreach my $partial_key (@packages) {
1.230 albertel 639: if ($partial_key=~m/^part_0$/) {
1.223 sakharuk 640: $allow_print_points=1;
1.159 albertel 641: }
642: }
1.276 albertel 643: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
644: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1.159 albertel 645: my $duedate = &Apache::lonnet::EXT("resource.$id.duedate");
646: $duedate = POSIX::strftime("%c",localtime($duedate));
647: my $temp_file;
1.284 albertel 648: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1.159 albertel 649: if (-e $filename) {
650: $temp_file = Apache::File->new($filename);
651: } else {
652: $temp_file = Apache::File->new('>>'.$filename);
653: }
654: my @due_file_content = <$temp_file>;
655: my $due_file_content = $due_file_content[$#due_file_content];
656: chomp $due_file_content;
1.257 sakharuk 657: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.159 albertel 658: if ($due_file_content ne $duedate) {
659: $temp_file = Apache::File->new('>'.$filename);
660: print $temp_file "$duedate\n";
1.284 albertel 661: if (not $env{'request.symb'} =~ m/\.page_/) {
1.159 albertel 662: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1.284 albertel 663: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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 664: } else {
1.284 albertel 665: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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}{'.$name_of_resourse.'}';
1.159 albertel 666: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
667: }
1.104 sakharuk 668: } else {
1.159 albertel 669: $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
1.104 sakharuk 670: }
1.101 sakharuk 671: } else {
1.284 albertel 672: if (not $env{'request.symb'} =~ m/\.page_/) {
673: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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}{'.$name_of_resourse.'}';
1.159 albertel 674: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
675: } else {
676: $result .= '\vskip 1mm \\\\\\\\';
677: }
678: }
1.99 sakharuk 679: }
1.159 albertel 680: } elsif ($target eq 'edit') {
681: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
682: &problem_edit_header();
1.226 albertel 683: $Apache::lonxml::warnings_error_header=
684: &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 685: my $temp=&Apache::edit::insertlist($target,$token);
686: $result.=$temp;
687: } elsif ($target eq 'modified') {
688: $result=$token->[4];
689: $result.=&Apache::edit::handle_insert();
690: } else {
691: # page_start returned a starting result, delete it if we don't need it
692: $result = '';
1.99 sakharuk 693: }
1.159 albertel 694: return $result;
1.9 albertel 695: }
696:
697: sub end_problem {
1.159 albertel 698: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
699: my $result='';
700: my $status=$Apache::inputtags::status['-1'];
701: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
702: $target eq 'tex') {
1.249 albertel 703: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 704: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 705: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
706: &Apache::inputtags::grade;
707: } else {
708: # move any submission data to .hidden
709: &Apache::inputtags::hidealldata($Apache::inputtags::part);
710: }
1.159 albertel 711: } elsif ( ($target eq 'web' || $target eq 'tex') &&
712: $Apache::inputtags::part eq '0' &&
1.252 albertel 713: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 714: # if part is zero, no <part>s existed, so we need show the current
715: # grading status
716: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
717: $result.= $gradestatus;
718: }
719: if (
1.284 albertel 720: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 721: ($target eq 'answer') || ($target eq 'tex')
722: ) {
1.227 albertel 723: if ($target ne 'tex' &&
1.284 albertel 724: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 725: $result.="</form>";
726: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
1.159 albertel 727: }
728: if ($target eq 'web') {
1.281 albertel 729: $result.=&Apache::lonxml::xmlend().'</html>';
1.159 albertel 730: } elsif ($target eq 'tex') {
1.178 sakharuk 731: my $endminipage = '';
1.284 albertel 732: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 733: $endminipage = '\end{minipage}';
734: }
1.284 albertel 735: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 736: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 737: $result=~s/<\/html>//;
1.159 albertel 738: } else {
1.262 sakharuk 739: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 740: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 741: $result .= $endminipage.'\end{document} ';
742: } else {
743: $result .= '';
744: }
1.159 albertel 745: }
746: }
747: }
748: if ($target eq 'grade') {
749: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
750: &finalize_storage();
751: }
1.284 albertel 752: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
753: && $env{'form.answer_output_mode'} ne 'tex') {
1.172 albertel 754: $result.='</html>'; # normally we get it from xmlend, but in CSTR
755: # we always show answer mode too.
1.159 albertel 756: }
757: } elsif ($target eq 'meta') {
758: if ($Apache::inputtags::part eq '0') {
1.179 albertel 759: @Apache::inputtags::response=();
1.159 albertel 760: $result=&Apache::response::mandatory_part_meta;
761: }
1.215 albertel 762: $result.=&Apache::response::meta_part_order();
1.258 albertel 763: $result.=&Apache::response::meta_response_order();
1.159 albertel 764: } elsif ($target eq 'edit') {
765: &Apache::lonxml::debug("in end_problem with $target, edit");
766: $result = &problem_edit_footer();
767: }
1.155 albertel 768:
1.284 albertel 769: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 770: &Apache::inputtags::check_for_duplicate_ids();
771: }
1.204 albertel 772:
773: &reset_problem_globals('problem');
1.159 albertel 774:
775: return $result;
1.48 albertel 776: }
777:
1.108 albertel 778:
1.48 albertel 779: sub start_library {
1.159 albertel 780: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
781: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 782: if ($$tagstack[0] eq 'library') {
783: &init_problem_globals('library');
784: $Apache::lonhomework::type='problem';
785: }
1.159 albertel 786: if ($target eq 'edit') {
787: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
788: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
789: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
790: &problem_edit_header();
791: my $temp=&Apache::edit::insertlist($target,$token);
792: $result.=$temp;
793: } elsif ($target eq 'modified') {
794: $result=$token->[4];
795: $result.=&Apache::edit::handle_insert();
796: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 797: $env{'request.state'} eq "construct" ) {
1.159 albertel 798: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
799: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
800: my $name=&get_resource_name($parstack,$safeeval);
801: my $rndseed=&setup_rndseed($safeeval);
802: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 803: $body_tag_start \n $form_tag_start".
1.159 albertel 804: '<input type="hidden" name="submitted" value="yes" />';
805: $result.=&problem_web_to_edit_header($rndseed);
806: }
807: return $result;
1.48 albertel 808: }
809:
810: sub end_library {
1.159 albertel 811: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
812: my $result='';
813: if ($target eq 'edit') {
814: $result=&problem_edit_footer();
815: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 816: $env{'request.state'} eq "construct") {
1.280 albertel 817: $result.='</form>'.&Apache::loncommon::endbodytag().
818: &Apache::lonxml::xmlend();
1.159 albertel 819: }
1.204 albertel 820: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 821: return $result;
1.197 www 822: }
823:
824: sub start_definetag {
825: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
826:
827: my $result;
828:
829: my $name = $token->[2]->{'name'};
830: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
831: if ($name=~/^\//) {
832: $result=
833: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
834: } else {
835: $result=
836: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
837: }
838: $skip=~s/\</\<\;/gs;
839: $skip=~s/\>/\>\;/gs;
840: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
841: return $result;
842: }
843:
844: sub end_definetag {
845: return '';
1.1 albertel 846: }
847:
848: sub start_block {
1.201 albertel 849: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 850:
851: my $result;
1.1 albertel 852:
1.160 albertel 853: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 854: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 855: my $code = $token->[2]->{'condition'};
1.201 albertel 856: if (defined($code)) {
1.137 albertel 857: if (!$Apache::lonxml::default_homework_loaded) {
858: &Apache::lonxml::default_homework_load($safeeval);
859: }
1.131 albertel 860: $result = &Apache::run::run($code,$safeeval);
861: &Apache::lonxml::debug("block :$code: returned :$result:");
862: } else {
863: $result='1';
864: }
865: if ( ! $result ) {
1.201 albertel 866: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 867: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
868: }
869: $result='';
870: } elsif ($target eq 'edit') {
871: $result .=&Apache::edit::tag_start($target,$token);
872: $result .=&Apache::edit::text_arg('Test Condition:','condition',
873: $token,40);
874: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
875: } elsif ($target eq 'modified') {
876: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
877: $safeeval,'condition');
878: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 879: }
1.131 albertel 880: return $result;
1.1 albertel 881: }
882:
883: sub end_block {
1.167 www 884: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
885: my $result;
886: if ($target eq "edit") {
887: $result.= &Apache::edit::tag_end($target,$token,'');
888: }
889: return $result;
890: }
891:
892: sub start_languageblock {
1.201 albertel 893: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 894:
895: my $result;
896:
897: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
898: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 899: my $include = $token->[2]->{'include'};
900: my $exclude = $token->[2]->{'exclude'};
901: my %languages=&Apache::loncommon::display_languages();
902: $result='1';
903: if ($include) {
904: $result='';
905: foreach (split(/\,/,$include)) {
906: if ($languages{$_}) { $result='1'; }
907: }
908: }
909: if ($exclude) {
910: foreach (split(/\,/,$exclude)) {
911: if ($languages{$_}) { $result='0'; }
912: }
913: }
914: if ( ! $result ) {
915: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
916: $style);
917: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
918: }
919: $result='';
1.167 www 920: } elsif ($target eq 'edit') {
921: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 922: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 923: $token,40);
1.211 albertel 924: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 925: $token,40);
926: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
927: } elsif ($target eq 'modified') {
928: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 929: $safeeval,'include',
930: 'exclude');
1.167 www 931: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
932: }
933: return $result;
934: }
935:
936: sub end_languageblock {
1.170 www 937: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
938: my $result;
1.201 albertel 939: if ($target eq "edit") {
1.170 www 940: $result.= &Apache::edit::tag_end($target,$token,'');
941: }
942: return $result;
943: }
944:
945: sub start_instructorcomment {
1.201 albertel 946: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 947:
948: my $result;
949:
950: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
951: $target eq 'tex' || $target eq 'analyze') {
1.284 albertel 952: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
953: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 954: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
955: $parser,$style);
1.170 www 956: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
957: }
958: $result='';
959: } elsif ($target eq 'edit') {
960: $result .=&Apache::edit::tag_start($target,$token);
961: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
962: }
963: return $result;
964: }
965:
966: sub end_instructorcomment {
1.159 albertel 967: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 968: my $result;
969: if ($target eq "edit") {
970: $result.= &Apache::edit::tag_end($target,$token,'');
971: }
972: return $result;
1.4 tsai 973: }
974:
975: sub start_while {
1.159 albertel 976: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
977:
1.160 albertel 978: my $result;
1.161 albertel 979: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 980: $target eq 'tex' || $target eq 'analyze') {
981: my $code = $token->[2]->{'condition'};
1.4 tsai 982:
1.160 albertel 983: push( @Apache::structuretags::whileconds, $code);
984: if (!$Apache::lonxml::default_homework_loaded) {
985: &Apache::lonxml::default_homework_load($safeeval);
986: }
987: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 988: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 989: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 990: push( @Apache::structuretags::whileline, $token->[5]);
991: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 992: if ( $result ) {
993: &Apache::lonxml::newparser($parser,\$bodytext);
994: }
995: } elsif ($target eq 'edit') {
996: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 997: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 998: $token,40);
999: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1000: } elsif ($target eq 'modified') {
1001: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1002: $safeeval,'condition');
1003: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1004: }
1.160 albertel 1005: return $result;
1.4 tsai 1006: }
1007:
1008: sub end_while {
1.159 albertel 1009: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1010: my $result;
1011:
1012: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1013: $target eq 'tex' || $target eq 'analyze') {
1014: my $code = pop(@Apache::structuretags::whileconds);
1015: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1016: my $line = pop(@Apache::structuretags::whileline);
1017: my $return = &Apache::run::run($code,$safeeval);
1018: my $starttime=time;
1019: my $error=0;
1020: while ($return) {
1021: if (time-$starttime >
1022: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1023: #$return = 0; $error=1; next;
1.161 albertel 1024: }
1025: $result.=&Apache::scripttag::xmlparse($bodytext);
1026: $return = &Apache::run::run($code,$safeeval);
1027: }
1028: if ($error) {
1.270 albertel 1029: &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 1030: }
1031: } elsif ($target eq "edit") {
1032: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1033: }
1.160 albertel 1034: return $result;
1.1 albertel 1035: }
1.6 tsai 1036:
1.160 albertel 1037: # <randomlist show="1">
1.6 tsai 1038: # <tag1>..</tag1>
1039: # <tag2>..</tag2>
1040: # <tag3>..</tag3>
1.160 albertel 1041: # ...
1.6 tsai 1042: # </randomlist>
1043: sub start_randomlist {
1.159 albertel 1044: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1045: my $result;
1046: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1047: $target eq 'tex' || $target eq 'analyze') {
1048: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1049: my $b_parser= HTML::TokeParser->new(\$body);
1050: my $b_tok;
1051: my @randomlist;
1052: my $list_item;
1053: while($b_tok = $b_parser->get_token() ) {
1054: if($b_tok->[0] eq 'S') { # start tag
1055: # get content of the tag until matching end tag
1056: # get all text upto the matching tag
1057: # and push the content into @randomlist
1058: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1059: $b_parser);
1060: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1061: push(@randomlist,$list_item);
1062: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1063: # $list_item</b>";
1064: }
1065: if($b_tok->[0] eq 'T') { # text
1066: # what to do with text in between tags?
1067: # print "<b>TEXT $b_tok->[1]</b><br />";
1068: }
1069: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1070: # print "<b>END-TAG $b_tok->[1]</b><br />";
1071: # }
1072: }
1073: my @idx_arr = (0 .. $#randomlist);
1074: &Apache::structuretags::shuffle(\@idx_arr);
1075: my $bodytext = '';
1076: my $show=$#randomlist;
1077: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1078: $showarg--;
1079: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1080: for(0 .. $show) {
1081: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1082: }
1083: &Apache::lonxml::newparser($parser,\$bodytext);
1084: } elsif ($target eq 'edit' ) {
1085: $result .=&Apache::edit::tag_start($target,$token);
1086: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1087: $token,5);
1088: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1089: } elsif ($target eq 'modified' ) {
1090: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1091: $safeeval,'show');
1092: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1093: }
1094: return $result;
1.7 tsai 1095: }
1096:
1097: sub shuffle {
1098: my $a=shift;
1099: my $i;
1.70 albertel 1100: if (defined(@$a)) {
1.251 albertel 1101: &Apache::response::pushrandomnumber();
1.159 albertel 1102: for($i=@$a;--$i;) {
1103: my $j=int(&Math::Random::random_uniform() * ($i+1));
1104: next if $i == $j;
1105: @$a[$i,$j] = @$a[$j,$i];
1106: }
1.251 albertel 1107: &Apache::response::poprandomnumber();
1.7 tsai 1108: }
1.6 tsai 1109: }
1110:
1111: sub end_randomlist {
1.159 albertel 1112: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1113: my $result;
1114: if ($target eq 'edit' ) {
1115: $result=&Apache::edit::tag_end($target,$token,
1116: 'End Randomly Parsed Block');
1117: }
1118: return $result;
1.6 tsai 1119: }
1120:
1.283 albertel 1121: sub ordered_show_check {
1122: my $last_part=$Apache::inputtags::partlist[-2];
1123: my $in_order=
1124: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1125: my $in_order_show=1;
1126: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1127: $in_order_show=&Apache::response::check_status($last_part);
1128: }
1129: return $in_order_show;
1130: }
1131:
1.11 albertel 1132: sub start_part {
1.159 albertel 1133: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1134: my $result='';
1135: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1136: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
1137: $Apache::inputtags::part=$id;
1.177 albertel 1138: push(@Apache::inputtags::partlist,$id);
1139: @Apache::inputtags::response=();
1.159 albertel 1140: @Apache::inputtags::previous=();
1141: @Apache::inputtags::previous_version=();
1.241 albertel 1142: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1143: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1144: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1145: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1146: my $in_order_show=&ordered_show_check();
1.214 albertel 1147: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1148: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1149: &Apache::run::run($expression,$safeeval);
1.159 albertel 1150:
1151: if ($target eq 'meta') {
1.224 www 1152: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1153: return &Apache::response::mandatory_part_meta.
1154: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1155: } elsif ($target eq 'web' || $target eq 'grade' ||
1156: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1157: if ($hidden || !$in_order_show) {
1.159 albertel 1158: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1159: } else {
1160: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1161: push (@Apache::inputtags::status,$status);
1162: my $expression='$external::datestatus="'.$status.'";';
1163: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1164: &Apache::run::run($expression,$safeeval);
1.284 albertel 1165: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1166: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1167: }
1.216 albertel 1168: if (( $status eq 'CLOSED' ) ||
1169: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1170: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1171: ( $status eq 'BANNED') ||
1172: ( $status eq 'UNAVAILABLE') ||
1173: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 1174: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1175: if ( $target eq "web" ) {
1.211 albertel 1176: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1177: } elsif ( $target eq 'tex' ) {
1.284 albertel 1178: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1179: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1180: } else {
1.211 albertel 1181: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1182: }
1.159 albertel 1183: }
1184: } else {
1185: if ($target eq 'tex') {
1.284 albertel 1186: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1187: if ($$tagstack[-2] eq 'td') {
1188: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1189: } else {
1190: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1191: }
1.195 sakharuk 1192: }
1.159 albertel 1193: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1194: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1195: my @allkeys = split /,/,$allkeys;
1196: my $allow_print_points = 0;
1197: foreach my $partial_key (@allkeys) {
1.230 albertel 1198: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1199: if ($1 ne '0') {$allow_print_points=1;}
1200: }
1201: }
1.275 albertel 1202: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1203: if (defined($maxtries) && $maxtries < 0) {
1204: $allow_print_points=0;
1205: }
1.222 sakharuk 1206: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1207: } elsif ($target eq 'web') {
1208: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1209: }
1210: }
1211: }
1212: } elsif ($target eq 'edit') {
1213: $result.=&Apache::edit::tag_start($target,$token);
1214: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1215: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1216: ' '.
1217: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1218: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1219: } elsif ($target eq 'modified') {
1220: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1221: $safeeval,'id','display');
1.159 albertel 1222: if ($constructtag) {
1.225 albertel 1223: #limiting ids to only letters numbers, and space
1.224 www 1224: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1225: $result = &Apache::edit::rebuild_tag($token);
1226: $result.=&Apache::edit::handle_insert();
1227: }
1228: }
1229: return $result;
1.11 albertel 1230: }
1231:
1232: sub end_part {
1.159 albertel 1233: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1234: &Apache::lonxml::debug("in end_part $target ");
1235: my $status=$Apache::inputtags::status['-1'];
1236: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1237: my $in_order_show=&ordered_show_check();
1.159 albertel 1238: my $result='';
1239: if ( $target eq 'meta' ) {
1240: $result='';
1.249 albertel 1241: } elsif ($target eq 'grade') {
1242: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1243: !$hidden && $in_order_show) {
1.249 albertel 1244: $result=&Apache::inputtags::grade;
1245: } else {
1246: # move any submission data to .hidden
1247: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1248: }
1.283 albertel 1249: } elsif (($target eq 'web' || $target eq 'tex') &&
1250: !$hidden && $in_order_show) {
1.159 albertel 1251: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1252: $target);
1.212 albertel 1253: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1254: $gradestatus='';
1255: }
1.159 albertel 1256: $result=$gradestatus;
1.265 sakharuk 1257: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1258: } elsif ($target eq 'edit') {
1259: $result=&Apache::edit::end_table();
1.159 albertel 1260: }
1261: pop @Apache::inputtags::status;
1262: $Apache::inputtags::part='';
1263: return $result;
1.11 albertel 1264: }
1.1 albertel 1265:
1.25 albertel 1266: sub start_preduedate {
1.159 albertel 1267: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1268: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1.236 albertel 1269: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.159 albertel 1270: if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1271: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1272: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.159 albertel 1273: &Apache::lonxml::get_all_text("/preduedate",$parser);
1274: }
1.24 albertel 1275: }
1.159 albertel 1276: return '';
1.24 albertel 1277: }
1278:
1.25 albertel 1279: sub end_preduedate {
1.159 albertel 1280: return '';
1.24 albertel 1281: }
1282:
1.25 albertel 1283: sub start_postanswerdate {
1.159 albertel 1284: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.234 albertel 1285: if ($target eq 'web' || $target eq 'grade') {
1.159 albertel 1286: if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1287: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1288: }
1289: } elsif ($target eq 'tex') {
1.234 albertel 1290: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1.159 albertel 1291: }
1292: return '';
1.24 albertel 1293: }
1294:
1.25 albertel 1295: sub end_postanswerdate {
1.159 albertel 1296: return '';
1.24 albertel 1297: }
1298:
1.25 albertel 1299: sub start_notsolved {
1.159 albertel 1300: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1301: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1302: $target eq 'tex') {
1303: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1304: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1305: if ($gradestatus =~ /^correct/ &&
1306: &Apache::response::show_answer()) {
1.159 albertel 1307: &Apache::lonxml::debug("skipping");
1308: &Apache::lonxml::get_all_text("/notsolved",$parser);
1309: }
1.24 albertel 1310: }
1.159 albertel 1311: return '';
1.24 albertel 1312: }
1313:
1.25 albertel 1314: sub end_notsolved {
1.159 albertel 1315: return '';
1.24 albertel 1316: }
1317:
1318: sub start_solved {
1.159 albertel 1319: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1320: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1321: $target eq 'tex') {
1322: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1323: if ($gradestatus !~ /^correct/ ||
1324: !&Apache::response::show_answer()) {
1.159 albertel 1325: &Apache::lonxml::get_all_text("/solved",$parser);
1326: }
1.24 albertel 1327: }
1.159 albertel 1328: return '';
1.24 albertel 1329: }
1330:
1331: sub end_solved {
1.248 albertel 1332: return '';
1333: }
1334:
1335: sub start_problemtype {
1336: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1337: my $result;
1338: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1339: $target eq 'tex' || $target eq 'analyze') {
1340: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1341: if (!defined($mode)) { $mode='show'; }
1342: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1343: my $found=0;
1344: foreach my $type (split(',',$for)) {
1345: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1346: }
1347: if ($mode eq 'show' && !$found) {
1348: &Apache::lonxml::get_all_text("/problemtype",$parser);
1349: }
1350: if ($mode eq 'hide' && $found) {
1351: &Apache::lonxml::get_all_text("/problemtype",$parser);
1352: }
1353: } elsif ($target eq 'edit') {
1354: $result .=&Apache::edit::tag_start($target,$token);
1355: $result.=&Apache::edit::select_arg('Mode:','mode',
1356: [['show','Show'],
1357: ['hide','Hide']]
1358: ,$token);
1359: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1360: [ ['exam','Exam/Quiz Problem'],
1361: ['survey','Survey'],
1362: ['problem','Homework Problem'] ]
1363: ,$token);
1364: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1365: } elsif ($target eq 'modified') {
1366: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1367: $safeeval,'mode','for');
1368: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1369: }
1370: return $result;
1371: }
1372:
1373: sub end_problemtype {
1.159 albertel 1374: return '';
1.24 albertel 1375: }
1.34 albertel 1376:
1377: sub start_startouttext {
1.159 albertel 1378: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1379: my @result=(''.'');
1380: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1381: return (@result);
1.34 albertel 1382: }
1.159 albertel 1383:
1.34 albertel 1384: sub end_startouttext {
1.159 albertel 1385: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1386: my $result='';
1387: my $text='';
1388:
1389: if ($target eq 'edit') {
1390: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1.211 albertel 1391: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1392: <td>".&mt('Delete:').
1.159 albertel 1393: &Apache::edit::deletelist($target,$token)
1394: ."</td>
1.42 albertel 1395: <td>".
1.159 albertel 1396: &Apache::edit::insertlist($target,$token).
1397: &Apache::edit::end_row().
1398: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1399: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1400: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1401: }
1402: if ($target eq 'modified') {
1.219 albertel 1403: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1404: }
1405: if ($target eq 'tex') {
1406: $result .= '\noindent ';
1407: }
1408: return $result;
1.34 albertel 1409: }
1.159 albertel 1410:
1.34 albertel 1411: sub start_endouttext {
1.159 albertel 1412: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1413: my $result='';
1414: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1415: if ($target eq "modified") {
1416: $result='<endouttext />'.
1417: &Apache::edit::handle_insertafter('startouttext'); }
1418: return $result;
1.34 albertel 1419: }
1.159 albertel 1420:
1.34 albertel 1421: sub end_endouttext {
1.159 albertel 1422: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1423: my @result=('','');
1424: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1425: return (@result);
1.34 albertel 1426: }
1.159 albertel 1427:
1.45 albertel 1428: sub delete_startouttext {
1.159 albertel 1429: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1430: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1431: my $text=$$parser['-1']->get_text("/endouttext");
1432: my $ntoken=$$parser['-1']->get_token();
1433: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1434: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1435: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1436: # they did the last time round
1437: &Apache::lonxml::increasedepth($ntoken);
1438: &Apache::lonxml::decreasedepth($ntoken);
1439: return 1;
1.193 www 1440: }
1441:
1442: sub start_simpleeditbutton {
1443: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1444: my $result='';
1.284 albertel 1445: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1446: ($target eq 'web') &&
1.284 albertel 1447: (&Apache::lonnet::allowed('srm',$env{'request.course.id'}))) {
1448: my $url=$env{'request.noversionuri'};
1.193 www 1449: $url=~s/\?.*$//;
1.278 albertel 1450: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1451: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1452: '<a href="'.$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 1453: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1454: }
1455: return $result;
1456: }
1457:
1458: sub end_simpleeditbutton {
1459: return '';
1.45 albertel 1460: }
1.34 albertel 1461:
1.1 albertel 1462: 1;
1463: __END__
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