Annotation of loncom/homework/structuretags.pm, revision 1.294
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.294 ! albertel 4: # $Id: structuretags.pm,v 1.293 2005/06/04 02:56:44 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".$part."\0users"} = 1;
1.292 raeburn 375: } else {
1.293 albertel 376: my (undef,$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') {
1.294 ! albertel 754: $result.=&Apache::lonxml::xmlend().'</html>';
! 755: # normally we get it from above, but in CSTR
1.172 albertel 756: # we always show answer mode too.
1.159 albertel 757: }
758: } elsif ($target eq 'meta') {
759: if ($Apache::inputtags::part eq '0') {
1.179 albertel 760: @Apache::inputtags::response=();
1.159 albertel 761: $result=&Apache::response::mandatory_part_meta;
762: }
1.215 albertel 763: $result.=&Apache::response::meta_part_order();
1.258 albertel 764: $result.=&Apache::response::meta_response_order();
1.159 albertel 765: } elsif ($target eq 'edit') {
766: &Apache::lonxml::debug("in end_problem with $target, edit");
767: $result = &problem_edit_footer();
768: }
1.155 albertel 769:
1.284 albertel 770: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 771: &Apache::inputtags::check_for_duplicate_ids();
772: }
1.204 albertel 773:
774: &reset_problem_globals('problem');
1.159 albertel 775:
776: return $result;
1.48 albertel 777: }
778:
1.108 albertel 779:
1.48 albertel 780: sub start_library {
1.159 albertel 781: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
782: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 783: if ($$tagstack[0] eq 'library') {
784: &init_problem_globals('library');
785: $Apache::lonhomework::type='problem';
786: }
1.159 albertel 787: if ($target eq 'edit') {
788: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
789: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
790: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
791: &problem_edit_header();
792: my $temp=&Apache::edit::insertlist($target,$token);
793: $result.=$temp;
794: } elsif ($target eq 'modified') {
795: $result=$token->[4];
796: $result.=&Apache::edit::handle_insert();
797: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 798: $env{'request.state'} eq "construct" ) {
1.159 albertel 799: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
800: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
801: my $name=&get_resource_name($parstack,$safeeval);
802: my $rndseed=&setup_rndseed($safeeval);
803: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 804: $body_tag_start \n $form_tag_start".
1.159 albertel 805: '<input type="hidden" name="submitted" value="yes" />';
806: $result.=&problem_web_to_edit_header($rndseed);
807: }
808: return $result;
1.48 albertel 809: }
810:
811: sub end_library {
1.159 albertel 812: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
813: my $result='';
814: if ($target eq 'edit') {
815: $result=&problem_edit_footer();
816: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 817: $env{'request.state'} eq "construct") {
1.280 albertel 818: $result.='</form>'.&Apache::loncommon::endbodytag().
819: &Apache::lonxml::xmlend();
1.159 albertel 820: }
1.204 albertel 821: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 822: return $result;
1.197 www 823: }
824:
825: sub start_definetag {
826: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
827:
828: my $result;
829:
830: my $name = $token->[2]->{'name'};
831: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
832: if ($name=~/^\//) {
833: $result=
834: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
835: } else {
836: $result=
837: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
838: }
839: $skip=~s/\</\<\;/gs;
840: $skip=~s/\>/\>\;/gs;
841: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
842: return $result;
843: }
844:
845: sub end_definetag {
846: return '';
1.1 albertel 847: }
848:
849: sub start_block {
1.201 albertel 850: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 851:
852: my $result;
1.1 albertel 853:
1.160 albertel 854: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 855: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 856: my $code = $token->[2]->{'condition'};
1.201 albertel 857: if (defined($code)) {
1.137 albertel 858: if (!$Apache::lonxml::default_homework_loaded) {
859: &Apache::lonxml::default_homework_load($safeeval);
860: }
1.131 albertel 861: $result = &Apache::run::run($code,$safeeval);
862: &Apache::lonxml::debug("block :$code: returned :$result:");
863: } else {
864: $result='1';
865: }
866: if ( ! $result ) {
1.201 albertel 867: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 868: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
869: }
870: $result='';
871: } elsif ($target eq 'edit') {
872: $result .=&Apache::edit::tag_start($target,$token);
873: $result .=&Apache::edit::text_arg('Test Condition:','condition',
874: $token,40);
875: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
876: } elsif ($target eq 'modified') {
877: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
878: $safeeval,'condition');
879: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 880: }
1.131 albertel 881: return $result;
1.1 albertel 882: }
883:
884: sub end_block {
1.167 www 885: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
886: my $result;
887: if ($target eq "edit") {
888: $result.= &Apache::edit::tag_end($target,$token,'');
889: }
890: return $result;
891: }
892:
893: sub start_languageblock {
1.201 albertel 894: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 895:
896: my $result;
897:
898: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
899: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 900: my $include = $token->[2]->{'include'};
901: my $exclude = $token->[2]->{'exclude'};
902: my %languages=&Apache::loncommon::display_languages();
903: $result='1';
904: if ($include) {
905: $result='';
906: foreach (split(/\,/,$include)) {
907: if ($languages{$_}) { $result='1'; }
908: }
909: }
910: if ($exclude) {
911: foreach (split(/\,/,$exclude)) {
912: if ($languages{$_}) { $result='0'; }
913: }
914: }
915: if ( ! $result ) {
916: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
917: $style);
918: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
919: }
920: $result='';
1.167 www 921: } elsif ($target eq 'edit') {
922: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 923: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 924: $token,40);
1.211 albertel 925: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 926: $token,40);
927: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
928: } elsif ($target eq 'modified') {
929: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 930: $safeeval,'include',
931: 'exclude');
1.167 www 932: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
933: }
934: return $result;
935: }
936:
937: sub end_languageblock {
1.170 www 938: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
939: my $result;
1.201 albertel 940: if ($target eq "edit") {
1.170 www 941: $result.= &Apache::edit::tag_end($target,$token,'');
942: }
943: return $result;
944: }
945:
946: sub start_instructorcomment {
1.201 albertel 947: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 948:
949: my $result;
950:
951: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
952: $target eq 'tex' || $target eq 'analyze') {
1.284 albertel 953: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
954: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 955: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
956: $parser,$style);
1.170 www 957: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
958: }
959: $result='';
960: } elsif ($target eq 'edit') {
961: $result .=&Apache::edit::tag_start($target,$token);
962: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
963: }
964: return $result;
965: }
966:
967: sub end_instructorcomment {
1.159 albertel 968: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 969: my $result;
970: if ($target eq "edit") {
971: $result.= &Apache::edit::tag_end($target,$token,'');
972: }
973: return $result;
1.4 tsai 974: }
975:
976: sub start_while {
1.159 albertel 977: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
978:
1.160 albertel 979: my $result;
1.161 albertel 980: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 981: $target eq 'tex' || $target eq 'analyze') {
982: my $code = $token->[2]->{'condition'};
1.4 tsai 983:
1.160 albertel 984: push( @Apache::structuretags::whileconds, $code);
985: if (!$Apache::lonxml::default_homework_loaded) {
986: &Apache::lonxml::default_homework_load($safeeval);
987: }
988: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 989: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 990: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 991: push( @Apache::structuretags::whileline, $token->[5]);
992: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 993: if ( $result ) {
994: &Apache::lonxml::newparser($parser,\$bodytext);
995: }
996: } elsif ($target eq 'edit') {
997: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 998: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 999: $token,40);
1000: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1001: } elsif ($target eq 'modified') {
1002: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1003: $safeeval,'condition');
1004: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1005: }
1.160 albertel 1006: return $result;
1.4 tsai 1007: }
1008:
1009: sub end_while {
1.159 albertel 1010: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1011: my $result;
1012:
1013: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1014: $target eq 'tex' || $target eq 'analyze') {
1015: my $code = pop(@Apache::structuretags::whileconds);
1016: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1017: my $line = pop(@Apache::structuretags::whileline);
1018: my $return = &Apache::run::run($code,$safeeval);
1019: my $starttime=time;
1020: my $error=0;
1021: while ($return) {
1022: if (time-$starttime >
1023: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1024: #$return = 0; $error=1; next;
1.161 albertel 1025: }
1026: $result.=&Apache::scripttag::xmlparse($bodytext);
1027: $return = &Apache::run::run($code,$safeeval);
1028: }
1029: if ($error) {
1.270 albertel 1030: &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 1031: }
1032: } elsif ($target eq "edit") {
1033: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1034: }
1.160 albertel 1035: return $result;
1.1 albertel 1036: }
1.6 tsai 1037:
1.160 albertel 1038: # <randomlist show="1">
1.6 tsai 1039: # <tag1>..</tag1>
1040: # <tag2>..</tag2>
1041: # <tag3>..</tag3>
1.160 albertel 1042: # ...
1.6 tsai 1043: # </randomlist>
1044: sub start_randomlist {
1.159 albertel 1045: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1046: my $result;
1047: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1048: $target eq 'tex' || $target eq 'analyze') {
1049: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1050: my $b_parser= HTML::TokeParser->new(\$body);
1051: my $b_tok;
1052: my @randomlist;
1053: my $list_item;
1054: while($b_tok = $b_parser->get_token() ) {
1055: if($b_tok->[0] eq 'S') { # start tag
1056: # get content of the tag until matching end tag
1057: # get all text upto the matching tag
1058: # and push the content into @randomlist
1059: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1060: $b_parser);
1061: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1062: push(@randomlist,$list_item);
1063: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1064: # $list_item</b>";
1065: }
1066: if($b_tok->[0] eq 'T') { # text
1067: # what to do with text in between tags?
1068: # print "<b>TEXT $b_tok->[1]</b><br />";
1069: }
1070: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1071: # print "<b>END-TAG $b_tok->[1]</b><br />";
1072: # }
1073: }
1074: my @idx_arr = (0 .. $#randomlist);
1075: &Apache::structuretags::shuffle(\@idx_arr);
1076: my $bodytext = '';
1077: my $show=$#randomlist;
1078: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1079: $showarg--;
1080: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1081: for(0 .. $show) {
1082: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1083: }
1084: &Apache::lonxml::newparser($parser,\$bodytext);
1085: } elsif ($target eq 'edit' ) {
1086: $result .=&Apache::edit::tag_start($target,$token);
1087: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1088: $token,5);
1089: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1090: } elsif ($target eq 'modified' ) {
1091: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1092: $safeeval,'show');
1093: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1094: }
1095: return $result;
1.7 tsai 1096: }
1097:
1098: sub shuffle {
1099: my $a=shift;
1100: my $i;
1.70 albertel 1101: if (defined(@$a)) {
1.251 albertel 1102: &Apache::response::pushrandomnumber();
1.159 albertel 1103: for($i=@$a;--$i;) {
1104: my $j=int(&Math::Random::random_uniform() * ($i+1));
1105: next if $i == $j;
1106: @$a[$i,$j] = @$a[$j,$i];
1107: }
1.251 albertel 1108: &Apache::response::poprandomnumber();
1.7 tsai 1109: }
1.6 tsai 1110: }
1111:
1112: sub end_randomlist {
1.159 albertel 1113: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1114: my $result;
1115: if ($target eq 'edit' ) {
1116: $result=&Apache::edit::tag_end($target,$token,
1117: 'End Randomly Parsed Block');
1118: }
1119: return $result;
1.6 tsai 1120: }
1121:
1.283 albertel 1122: sub ordered_show_check {
1123: my $last_part=$Apache::inputtags::partlist[-2];
1124: my $in_order=
1125: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1126: my $in_order_show=1;
1127: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1128: $in_order_show=&Apache::response::check_status($last_part);
1129: }
1130: return $in_order_show;
1131: }
1132:
1.11 albertel 1133: sub start_part {
1.159 albertel 1134: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1135: my $result='';
1136: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1137: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
1138: $Apache::inputtags::part=$id;
1.177 albertel 1139: push(@Apache::inputtags::partlist,$id);
1140: @Apache::inputtags::response=();
1.159 albertel 1141: @Apache::inputtags::previous=();
1142: @Apache::inputtags::previous_version=();
1.241 albertel 1143: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1144: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1145: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1146: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1147: my $in_order_show=&ordered_show_check();
1.214 albertel 1148: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1149: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1150: &Apache::run::run($expression,$safeeval);
1.159 albertel 1151:
1152: if ($target eq 'meta') {
1.224 www 1153: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1154: return &Apache::response::mandatory_part_meta.
1155: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1156: } elsif ($target eq 'web' || $target eq 'grade' ||
1157: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1158: if ($hidden || !$in_order_show) {
1.159 albertel 1159: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1160: } else {
1161: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1162: push (@Apache::inputtags::status,$status);
1163: my $expression='$external::datestatus="'.$status.'";';
1164: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1165: &Apache::run::run($expression,$safeeval);
1.284 albertel 1166: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1167: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1168: }
1.216 albertel 1169: if (( $status eq 'CLOSED' ) ||
1170: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1171: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1172: ( $status eq 'BANNED') ||
1173: ( $status eq 'UNAVAILABLE') ||
1174: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 1175: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1176: if ( $target eq "web" ) {
1.211 albertel 1177: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1178: } elsif ( $target eq 'tex' ) {
1.284 albertel 1179: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1180: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1181: } else {
1.211 albertel 1182: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1183: }
1.159 albertel 1184: }
1185: } else {
1186: if ($target eq 'tex') {
1.284 albertel 1187: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1188: if ($$tagstack[-2] eq 'td') {
1189: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1190: } else {
1191: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1192: }
1.195 sakharuk 1193: }
1.159 albertel 1194: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1195: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1196: my @allkeys = split /,/,$allkeys;
1197: my $allow_print_points = 0;
1198: foreach my $partial_key (@allkeys) {
1.230 albertel 1199: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1200: if ($1 ne '0') {$allow_print_points=1;}
1201: }
1202: }
1.275 albertel 1203: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1204: if (defined($maxtries) && $maxtries < 0) {
1205: $allow_print_points=0;
1206: }
1.222 sakharuk 1207: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1208: } elsif ($target eq 'web') {
1209: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1210: }
1211: }
1212: }
1213: } elsif ($target eq 'edit') {
1214: $result.=&Apache::edit::tag_start($target,$token);
1215: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1216: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1217: ' '.
1218: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1219: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1220: } elsif ($target eq 'modified') {
1221: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1222: $safeeval,'id','display');
1.159 albertel 1223: if ($constructtag) {
1.225 albertel 1224: #limiting ids to only letters numbers, and space
1.224 www 1225: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1226: $result = &Apache::edit::rebuild_tag($token);
1227: $result.=&Apache::edit::handle_insert();
1228: }
1229: }
1230: return $result;
1.11 albertel 1231: }
1232:
1233: sub end_part {
1.159 albertel 1234: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1235: &Apache::lonxml::debug("in end_part $target ");
1236: my $status=$Apache::inputtags::status['-1'];
1237: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1238: my $in_order_show=&ordered_show_check();
1.159 albertel 1239: my $result='';
1240: if ( $target eq 'meta' ) {
1241: $result='';
1.249 albertel 1242: } elsif ($target eq 'grade') {
1243: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1244: !$hidden && $in_order_show) {
1.249 albertel 1245: $result=&Apache::inputtags::grade;
1246: } else {
1247: # move any submission data to .hidden
1248: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1249: }
1.283 albertel 1250: } elsif (($target eq 'web' || $target eq 'tex') &&
1251: !$hidden && $in_order_show) {
1.159 albertel 1252: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1253: $target);
1.212 albertel 1254: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1255: $gradestatus='';
1256: }
1.159 albertel 1257: $result=$gradestatus;
1.265 sakharuk 1258: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1259: } elsif ($target eq 'edit') {
1260: $result=&Apache::edit::end_table();
1.159 albertel 1261: }
1262: pop @Apache::inputtags::status;
1263: $Apache::inputtags::part='';
1264: return $result;
1.11 albertel 1265: }
1.1 albertel 1266:
1.25 albertel 1267: sub start_preduedate {
1.159 albertel 1268: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1269: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1.236 albertel 1270: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.159 albertel 1271: if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1272: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1273: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.159 albertel 1274: &Apache::lonxml::get_all_text("/preduedate",$parser);
1275: }
1.24 albertel 1276: }
1.159 albertel 1277: return '';
1.24 albertel 1278: }
1279:
1.25 albertel 1280: sub end_preduedate {
1.159 albertel 1281: return '';
1.24 albertel 1282: }
1283:
1.25 albertel 1284: sub start_postanswerdate {
1.159 albertel 1285: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.234 albertel 1286: if ($target eq 'web' || $target eq 'grade') {
1.159 albertel 1287: if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1288: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1289: }
1290: } elsif ($target eq 'tex') {
1.234 albertel 1291: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1.159 albertel 1292: }
1293: return '';
1.24 albertel 1294: }
1295:
1.25 albertel 1296: sub end_postanswerdate {
1.159 albertel 1297: return '';
1.24 albertel 1298: }
1299:
1.25 albertel 1300: sub start_notsolved {
1.159 albertel 1301: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1302: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1303: $target eq 'tex') {
1304: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1305: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1306: if ($gradestatus =~ /^correct/ &&
1307: &Apache::response::show_answer()) {
1.159 albertel 1308: &Apache::lonxml::debug("skipping");
1309: &Apache::lonxml::get_all_text("/notsolved",$parser);
1310: }
1.24 albertel 1311: }
1.159 albertel 1312: return '';
1.24 albertel 1313: }
1314:
1.25 albertel 1315: sub end_notsolved {
1.159 albertel 1316: return '';
1.24 albertel 1317: }
1318:
1319: sub start_solved {
1.159 albertel 1320: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1321: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1322: $target eq 'tex') {
1323: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1324: if ($gradestatus !~ /^correct/ ||
1325: !&Apache::response::show_answer()) {
1.159 albertel 1326: &Apache::lonxml::get_all_text("/solved",$parser);
1327: }
1.24 albertel 1328: }
1.159 albertel 1329: return '';
1.24 albertel 1330: }
1331:
1332: sub end_solved {
1.248 albertel 1333: return '';
1334: }
1335:
1336: sub start_problemtype {
1337: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1338: my $result;
1339: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1340: $target eq 'tex' || $target eq 'analyze') {
1341: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1342: if (!defined($mode)) { $mode='show'; }
1343: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1344: my $found=0;
1345: foreach my $type (split(',',$for)) {
1346: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1347: }
1348: if ($mode eq 'show' && !$found) {
1349: &Apache::lonxml::get_all_text("/problemtype",$parser);
1350: }
1351: if ($mode eq 'hide' && $found) {
1352: &Apache::lonxml::get_all_text("/problemtype",$parser);
1353: }
1354: } elsif ($target eq 'edit') {
1355: $result .=&Apache::edit::tag_start($target,$token);
1356: $result.=&Apache::edit::select_arg('Mode:','mode',
1357: [['show','Show'],
1358: ['hide','Hide']]
1359: ,$token);
1360: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1361: [ ['exam','Exam/Quiz Problem'],
1362: ['survey','Survey'],
1363: ['problem','Homework Problem'] ]
1364: ,$token);
1365: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1366: } elsif ($target eq 'modified') {
1367: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1368: $safeeval,'mode','for');
1369: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1370: }
1371: return $result;
1372: }
1373:
1374: sub end_problemtype {
1.159 albertel 1375: return '';
1.24 albertel 1376: }
1.34 albertel 1377:
1378: sub start_startouttext {
1.159 albertel 1379: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1380: my @result=(''.'');
1381: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1382: return (@result);
1.34 albertel 1383: }
1.159 albertel 1384:
1.34 albertel 1385: sub end_startouttext {
1.159 albertel 1386: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1387: my $result='';
1388: my $text='';
1389:
1390: if ($target eq 'edit') {
1391: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1.211 albertel 1392: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1393: <td>".&mt('Delete:').
1.159 albertel 1394: &Apache::edit::deletelist($target,$token)
1395: ."</td>
1.42 albertel 1396: <td>".
1.159 albertel 1397: &Apache::edit::insertlist($target,$token).
1398: &Apache::edit::end_row().
1399: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1400: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1401: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1402: }
1403: if ($target eq 'modified') {
1.219 albertel 1404: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1405: }
1406: if ($target eq 'tex') {
1407: $result .= '\noindent ';
1408: }
1409: return $result;
1.34 albertel 1410: }
1.159 albertel 1411:
1.34 albertel 1412: sub start_endouttext {
1.159 albertel 1413: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1414: my $result='';
1415: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1416: if ($target eq "modified") {
1417: $result='<endouttext />'.
1418: &Apache::edit::handle_insertafter('startouttext'); }
1419: return $result;
1.34 albertel 1420: }
1.159 albertel 1421:
1.34 albertel 1422: sub end_endouttext {
1.159 albertel 1423: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1424: my @result=('','');
1425: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1426: return (@result);
1.34 albertel 1427: }
1.159 albertel 1428:
1.45 albertel 1429: sub delete_startouttext {
1.159 albertel 1430: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1431: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1432: my $text=$$parser['-1']->get_text("/endouttext");
1433: my $ntoken=$$parser['-1']->get_token();
1434: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1435: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1436: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1437: # they did the last time round
1438: &Apache::lonxml::increasedepth($ntoken);
1439: &Apache::lonxml::decreasedepth($ntoken);
1440: return 1;
1.193 www 1441: }
1442:
1443: sub start_simpleeditbutton {
1444: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1445: my $result='';
1.284 albertel 1446: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1447: ($target eq 'web') &&
1.284 albertel 1448: (&Apache::lonnet::allowed('srm',$env{'request.course.id'}))) {
1449: my $url=$env{'request.noversionuri'};
1.193 www 1450: $url=~s/\?.*$//;
1.278 albertel 1451: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1452: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1453: '<a href="'.$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 1454: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1455: }
1456: return $result;
1457: }
1458:
1459: sub end_simpleeditbutton {
1460: return '';
1.45 albertel 1461: }
1.34 albertel 1462:
1.1 albertel 1463: 1;
1464: __END__
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