Annotation of loncom/homework/structuretags.pm, revision 1.311
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.311 ! foxr 4: # $Id: structuretags.pm,v 1.310 2005/11/03 12:14:31 foxr Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.133 sakharuk 30:
1.1 albertel 31: package Apache::structuretags;
32:
33: use strict;
34: use Apache::lonnet;
1.101 sakharuk 35: use Apache::File();
1.147 www 36: use Apache::lonmenu;
1.210 albertel 37: use Apache::lonlocal;
1.231 sakharuk 38: use Apache::lonxml;
1.267 albertel 39: use Time::HiRes qw( gettimeofday tv_interval );
1.78 harris41 40: BEGIN {
1.248 albertel 41: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));
1.10 albertel 42: }
43:
44: sub start_web {
1.159 albertel 45: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.200 albertel 46: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser);
47: if ($target eq 'web') {
48: return $bodytext;
1.159 albertel 49: }
50: return '';
1.10 albertel 51: }
52:
53: sub end_web {
1.44 ng 54: return '';
1.10 albertel 55: }
56:
57: sub start_tex {
1.159 albertel 58: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.198 sakharuk 59: my $result='';
1.200 albertel 60: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser);
61: if ($target eq 'tex') {
62: return $bodytext.' ';
1.159 albertel 63: }
1.198 sakharuk 64: return $result;;
1.10 albertel 65: }
66:
67: sub end_tex {
1.44 ng 68: return '';
1.9 albertel 69: }
70:
1.290 albertel 71: sub body_tag_start {
72: my ($target,$background,$bgcolor)=@_;
73: my $body_tag_start='<body onload="'.&Apache::lonmenu::loadevents().'" '.
74: 'onunload="'.&Apache::lonmenu::unloadevents().'" ';
75: if ($env{'browser.imagesuppress'} eq 'on') { $background=''; }
76: if ($background) {
1.306 albertel 77: &Apache::lonxml::extlink($background);
1.290 albertel 78: $body_tag_start.='background="'.$background.'" ';
79: } else {
80: if (($bgcolor) && ($env{'browser.blackwhite'} ne 'on')) {
81: $body_tag_start.='bgcolor="'.$bgcolor.'" ';
82: } else {
83: $body_tag_start.='bgcolor="#ffffff"';
84: }
85: }
86: if ($env{'browser.fontenhance'} eq 'on') {
87: $body_tag_start.=' style="font-size: x-large;" ';
88: }
89: $body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1);
1.297 albertel 90:
91: &Apache::lontexconvert::jsMath_reset();
1.290 albertel 92: if ($env{'environment.texengine'} eq 'jsMath') {
1.297 albertel 93: $body_tag_start.=&Apache::lontexconvert::jsMath_header();
1.290 albertel 94: }
95: return $body_tag_start;
96: }
1.291 albertel 97:
1.48 albertel 98: sub page_start {
1.159 albertel 99: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
100: my %found;
1.207 albertel 101: foreach my $taginside (@$tagstack) {
1.159 albertel 102: foreach my $taglookedfor ('html','body','form') {
103: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
104: }
105: }
106:
107: my $result;
108: my $head_tag_start;
109: if (!defined($found{'html'})) {
110: $result=&Apache::londefdef::start_html($target,$token,$tagstack,
111: $parstack,$parser,$safeeval);
1.254 www 112: $head_tag_start='<head>'.&Apache::lonmenu::registerurl(undef,$target).
1.261 www 113: &Apache::lonhtmlcommon::htmlareaheaders().
1.270 albertel 114: &Apache::lonhtmlcommon::spellheader().
115: &Apache::lonxml::fontsettings();
1.159 albertel 116: }
117: my $body_tag_start;
1.284 albertel 118: if (!defined($found{'body'}) && $env{'request.state'} eq 'construct'
119: && $env{'environment.remote'} eq 'off') {
1.298 albertel 120: if ($target eq 'web' || $target eq 'edit') {
1.297 albertel 121: $body_tag_start=&Apache::loncommon::bodytag();
122: $body_tag_start.=&Apache::lonxml::message_location();
123: }
1.272 albertel 124: } elsif (!defined($found{'body'})) {
1.159 albertel 125: my $background=&Apache::lonxml::get_param('background',$parstack,
126: $safeeval);
1.290 albertel 127: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
128: $safeeval);
1.299 albertel 129: $body_tag_start=&body_tag_start($target,$background,$bgcolor);
1.291 albertel 130: if ( ($target eq 'web' || $target eq 'webgrade')
131: && $env{'request.state'} ne 'construct') {
1.165 albertel 132: my ($symb,undef,undef,undef,$publicuser)=
133: &Apache::lonxml::whichuser();
134: if ($symb eq '' && !$publicuser) {
1.159 albertel 135: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
1.211 albertel 136: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
1.159 albertel 137: $body_tag_start.=$help;
138: }
139: }
1.245 albertel 140: $body_tag_start.=&Apache::lonxml::message_location();
1.159 albertel 141: }
142: my $form_tag_start;
143: if (!defined($found{'form'})) {
1.281 albertel 144: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="POST" action="';
1.284 albertel 145: my $uri=$env{'request.uri'};
146: if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
1.271 albertel 147: $form_tag_start.=$uri.'">';
1.159 albertel 148: }
149: return ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.105 albertel 150: }
151:
1.141 matthew 152: #use Time::HiRes();
1.105 albertel 153: sub get_resource_name {
1.159 albertel 154: my ($parstack,$safeeval)=@_;
1.204 albertel 155: if (defined($Apache::lonhomework::name)) {
156: return $Apache::lonhomework::name;
157: }
1.279 albertel 158: my ($symb)=&Apache::lonxml::whichuser();
159: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 160: if ($name eq '') {
161: $name=&Apache::lonnet::EXT('resource.title');
162: if ($name eq 'con_lost') { $name = ''; }
163: }
1.204 albertel 164: if ($name!~/\S+/) {
1.284 albertel 165: $name=$env{'request.uri'};
1.205 albertel 166: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 167: }
1.159 albertel 168: $Apache::lonhomework::name=$name;
169: return $name;
1.105 albertel 170: }
171:
172: sub setup_rndseed {
1.159 albertel 173: my ($safeeval)=@_;
174: my $rndseed;
1.162 albertel 175: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 176: if ($env{'request.state'} eq "construct" || $symb eq '' ||
1.247 albertel 177: $Apache::lonhomework::history{'resource.CODE'}) {
1.284 albertel 178: $rndseed=$env{'form.rndseed'};
1.159 albertel 179: if (!$rndseed) {
1.162 albertel 180: $rndseed=$Apache::lonhomework::history{'rndseed'};
181: if (!$rndseed) {
182: $rndseed=time;
183: }
1.284 albertel 184: $env{'form.rndseed'}=$rndseed;
1.162 albertel 185: }
1.284 albertel 186: if ($env{'form.resetdata'} eq &mt('New Problem Variation') ||
187: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 188: srand(time);
189: $rndseed=int(rand(2100000000));
1.284 albertel 190: $env{'form.rndseed'}=$rndseed;
191: delete($env{'form.resetdata'});
192: delete($env{'form.newrandomization'});
1.159 albertel 193: }
1.187 albertel 194: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 195: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 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="$env{'request.uri'}">
1.252 albertel 419: <input type="hidden" name="markaccess" value="yes" />
420: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
421: </form>
422: ENDCHECKOUT
423: }
424:
1.308 foxr 425: # initializes the problem globals across the inputtags, lonhomework, and
426: # structuretags modules.
427: #
428: #
1.204 albertel 429: sub init_problem_globals {
430: my ($type)=@_;
431: #initialize globals
1.308 foxr 432: # For problems, we start out in part 0 (outside a <part> tag).
433: # and part 0 is used to describe the main body of the <problem>
434: #
1.204 albertel 435: if ($type eq 'problem') {
436: $Apache::inputtags::part='0';
437: @Apache::inputtags::partlist=('0');
1.266 albertel 438: $Apache::lonhomework::problemstatus=&get_problem_status('0');
439: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 440:
1.266 albertel 441: } elsif ($type eq 'library') {
1.204 albertel 442: $Apache::inputtags::part='';
443: @Apache::inputtags::partlist=();
444: $Apache::lonhomework::problemstatus='';
1.266 albertel 445: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 446:
1.304 albertel 447: } elsif ($type eq 'Task') {
448: $Apache::inputtags::part='0';
449: @Apache::inputtags::partlist=('0');
450: $Apache::lonhomework::problemstatus='';
451: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 452: }
453: @Apache::inputtags::responselist = ();
454: @Apache::inputtags::importlist = ();
455: @Apache::inputtags::previous=();
456: @Apache::inputtags::previous_version=();
457: $Apache::structuretags::printanswer='No';
458: @Apache::structuretags::whileconds=();
459: @Apache::structuretags::whilebody=();
460: @Apache::structuretags::whileline=();
461: $Apache::lonhomework::scantronmode=0;
462: undef($Apache::lonhomework::name);
463:
464: }
465:
466: sub reset_problem_globals {
467: my ($type)=@_;
468: undef(%Apache::lonhomework::history);
469: undef(%Apache::lonhomework::results);
470: undef($Apache::inputtags::part);
1.208 albertel 471: #don't undef this, lonhomework.pm takes care of this, we use this to
472: #detect if we try to do 2 problems in one file
473: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 474: undef($Apache::lonhomework::name);
475: }
476:
1.241 albertel 477: sub set_problem_state {
1.240 albertel 478: my ($part)=@_;
1.284 albertel 479: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 480: $Apache::lonhomework::history{"resource.$part.solved"}=
481: 'correct_by_student';
482: }
483: }
484:
1.241 albertel 485: sub get_problem_status {
486: my ($part)=@_;
1.267 albertel 487: my $problem_status;
1.284 albertel 488: if ($env{'request.state'} eq 'construct' &&
489: defined($env{'form.problemstatus'})) {
490: $problem_status=$env{'form.problemstatus'};
1.267 albertel 491: } else {
492: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
493: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 494: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 495: }
496: return $problem_status;
497: }
498:
1.9 albertel 499: sub start_problem {
1.159 albertel 500: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 501:
1.311 ! foxr 502: # We'll use the redirection to fix up printing of duedates.
! 503:
! 504: &Apache::lonxml::startredirection;
! 505:
1.308 foxr 506: # Problems don't nest and we don't allow more than one <problem> in
507: # a .problem file.
508: #
1.184 albertel 509: if ( $Apache::inputtags::part ne '' ||
510: $Apache::lonhomework::parsing_a_problem) {
511: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
512: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
1.159 albertel 513: return '';
514: }
1.184 albertel 515:
516: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 517: &init_problem_globals('problem');
1.166 albertel 518:
1.284 albertel 519: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 520: $Apache::lonhomework::scantronmode=1;
521: }
1.161 albertel 522:
1.246 albertel 523: &initialize_storage();
1.159 albertel 524: if ($target ne 'analyze') {
525: if ($target eq 'web') {
526: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 527: }
1.284 albertel 528: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 529: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 530: if (($env{'request.state'} eq 'construct') &&
531: defined($env{'form.problemtype'})) {
532: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 533: }
1.240 albertel 534: &Apache::lonxml::debug("Found this to be of type :$Apache::ltonhomework::type:");
1.159 albertel 535: }
1.164 albertel 536: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 537: my $uri=$env{'request.uri'};
1.159 albertel 538: if ($uri=~/\.(\w+)$/) {
539: $Apache::lonhomework::type=$1;
540: &Apache::lonxml::debug("Using type of $1");
541: } else {
542: $Apache::lonhomework::type='problem';
543: &Apache::lonxml::debug("Using default type, problem, :$uri:");
544: }
1.87 albertel 545: }
1.301 albertel 546: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 547:
1.159 albertel 548: #added vars to the scripting enviroment
1.213 albertel 549: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 550: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 551: &Apache::run::run($expression,$safeeval);
1.159 albertel 552: my $status;
553: my $accessmsg;
554:
555: #should get back a <html> or the neccesary stuff to start XML/MathML
556: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
557: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.284 albertel 558: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 559:
560: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
561: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
562: $target eq 'tex') {
563: #handle exam checkout
564: if ($Apache::lonhomework::type eq 'exam') {
565: my $token=
566: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 567: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 568: $token=&Apache::lonxml::maketoken();
569: $Apache::lonhomework::history{"resource.0.outtoken"}=
570: $token;
571: }
572: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 573: }
1.284 albertel 574: if ($env{'form.markaccess'}) {
1.252 albertel 575: &Apache::lonnet::set_first_access('map');
576: }
1.159 albertel 577: #handle rand seed in construction space
578: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 579: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 580: if ($env{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 581: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
582: $rndseed.'" />'.
583: '<input type="submit" name="resetdata"
1.211 albertel 584: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 585: '<input type="hidden" name="username"
1.284 albertel 586: value="'.$env{'form.username'}.'" />';
587: if ($env{'user.adv'}) {
1.267 albertel 588: $form_tag_start.=
1.300 albertel 589: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 590: if (defined($env{'form.showallfoils'})) {
1.267 albertel 591: $form_tag_start.='checked="on"';
592: }
1.300 albertel 593: $form_tag_start.= ' />'.&mt(' Show All Foils').
594: '</label>';
1.267 albertel 595: }
596: $form_tag_start.='<hr />';
1.162 albertel 597: }
1.159 albertel 598: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
599: push (@Apache::inputtags::status,$status);
600: my $expression='$external::datestatus="'.$status.'";';
601: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
602: &Apache::run::run($expression,$safeeval);
603: &Apache::lonxml::debug("Got $status");
604: if (( $status eq 'CLOSED' ) ||
605: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 606: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 607: ( $status eq 'BANNED') ||
1.216 albertel 608: ( $status eq 'UNAVAILABLE') ||
609: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 610: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
611: if ( $target eq "web" ) {
612: $result.= $head_tag_start.'</head>';
613: my $msg=$body_tag_start;
614: if ($status eq 'UNAVAILABLE') {
1.245 albertel 615: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 616: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 617: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 618: }
1.216 albertel 619: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 620: $msg.='The problem '.$accessmsg;
621: } elsif ($status eq 'UNCHECKEDOUT') {
622: $msg.=&checkout_msg;
1.252 albertel 623: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 624: $msg.=&firstaccess_msg($accessmsg,$symb);
1.159 albertel 625: }
626: $result.=$msg.'<br />';
627: } elsif ($target eq 'tex') {
628: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
629: if ($status eq 'UNAVAILABLE') {
1.211 albertel 630: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 631: } else {
1.211 albertel 632: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 633: }
634: }
635: } elsif ($target eq 'web') {
636: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 637: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 638: $body_tag_start \n $form_tag_start".
1.227 albertel 639: '<input type="hidden" name="submitted" value="yes" />';
640: # create a page header and exit
1.284 albertel 641: if ($env{'request.state'} eq "construct") {
642: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 643: }
644: # if we are viewing someone else preserve that info
1.284 albertel 645: if (defined $env{'form.grade_symb'}) {
1.227 albertel 646: foreach my $field ('symb','courseid','domain','username') {
647: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 648: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 649: }
650: }
651: } elsif ($target eq 'tex') {
1.192 sakharuk 652: my $startminipage = '';
1.284 albertel 653: if (not $env{'form.problem_split'}=~/yes/) {
1.192 sakharuk 654: $startminipage = '\begin{minipage}{\textwidth}';
1.178 sakharuk 655: }
1.159 albertel 656: my $id = $Apache::inputtags::part;
657: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 658: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.223 sakharuk 659: my @packages = split /,/,$packages;
660: my $allow_print_points = 0;
661: foreach my $partial_key (@packages) {
1.230 albertel 662: if ($partial_key=~m/^part_0$/) {
1.223 sakharuk 663: $allow_print_points=1;
1.159 albertel 664: }
665: }
1.276 albertel 666: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
667: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1.302 albertel 668: if (lc($env{'course.'.$env{'request.course.id'}.
669: '.disableexampointprint'}) eq 'yes') {
670: $allow_print_points=0;
671: }
1.308 foxr 672: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
673: my $begin_doc='\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent ';
674: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
675: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
676:
677: # Figure out what the due date is and if we need to print it in the problem header.
678: # We have been logging the last due date written to file.
679: #
680:
681:
682: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
683: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.159 albertel 684: my $temp_file;
1.284 albertel 685: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1.308 foxr 686:
687: # Figure out what the last printed due date is or set it to the epoch if no duedates
688: # have been printed.
689:
690: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1.159 albertel 691: if (-e $filename) {
692: $temp_file = Apache::File->new($filename);
1.308 foxr 693: my @due_file = <$temp_file>;
694: $due_file_content = $due_file[$#due_file];
695: chomp $due_file_content;
696: }
697: # The big change; Due do the comparison on
698: # the absolute time rather than textual time since that is format independent.
699: #
1.309 foxr 700: if ($due_file_content != $duetime) {
1.159 albertel 701: $temp_file = Apache::File->new('>'.$filename);
1.308 foxr 702: print $temp_file "$duetime\n";
1.284 albertel 703: if (not $env{'request.symb'} =~ m/\.page_/) {
1.159 albertel 704: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1.304 albertel 705: $result .= $begin_doc.
706: '\textit{Due date: '.$duedate.'} '.$toc_line;
1.159 albertel 707: } else {
1.304 albertel 708: $result .= $begin_doc.$toc_line;
1.159 albertel 709: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
710: }
1.104 sakharuk 711: } else {
1.159 albertel 712: $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
1.104 sakharuk 713: }
1.101 sakharuk 714: } else {
1.284 albertel 715: if (not $env{'request.symb'} =~ m/\.page_/) {
1.304 albertel 716: $result .= $begin_doc.$toc_line;
1.159 albertel 717: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
718: } else {
719: $result .= '\vskip 1mm \\\\\\\\';
720: }
721: }
1.99 sakharuk 722: }
1.159 albertel 723: } elsif ($target eq 'edit') {
724: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
725: &problem_edit_header();
1.226 albertel 726: $Apache::lonxml::warnings_error_header=
727: &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 728: my $temp=&Apache::edit::insertlist($target,$token);
729: $result.=$temp;
730: } elsif ($target eq 'modified') {
731: $result=$token->[4];
732: $result.=&Apache::edit::handle_insert();
733: } else {
734: # page_start returned a starting result, delete it if we don't need it
735: $result = '';
1.99 sakharuk 736: }
1.159 albertel 737: return $result;
1.9 albertel 738: }
739:
740: sub end_problem {
1.159 albertel 741: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.311 ! foxr 742: my $result= &Apache::lonxml::endredirection; # This captures the entire <problem>.... body.
1.310 foxr 743:
1.159 albertel 744: my $status=$Apache::inputtags::status['-1'];
745: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
746: $target eq 'tex') {
1.249 albertel 747: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 748: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 749: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
750: &Apache::inputtags::grade;
751: } else {
752: # move any submission data to .hidden
753: &Apache::inputtags::hidealldata($Apache::inputtags::part);
754: }
1.159 albertel 755: } elsif ( ($target eq 'web' || $target eq 'tex') &&
756: $Apache::inputtags::part eq '0' &&
1.252 albertel 757: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 758: # if part is zero, no <part>s existed, so we need show the current
759: # grading status
760: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
761: $result.= $gradestatus;
762: }
763: if (
1.284 albertel 764: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 765: ($target eq 'answer') || ($target eq 'tex')
766: ) {
1.227 albertel 767: if ($target ne 'tex' &&
1.284 albertel 768: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 769: $result.="</form>";
770: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
1.159 albertel 771: }
772: if ($target eq 'web') {
1.281 albertel 773: $result.=&Apache::lonxml::xmlend().'</html>';
1.159 albertel 774: } elsif ($target eq 'tex') {
1.178 sakharuk 775: my $endminipage = '';
1.284 albertel 776: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 777: $endminipage = '\end{minipage}';
778: }
1.284 albertel 779: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 780: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 781: $result=~s/<\/html>//;
1.159 albertel 782: } else {
1.262 sakharuk 783: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 784: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 785: $result .= $endminipage.'\end{document} ';
786: } else {
787: $result .= '';
788: }
1.159 albertel 789: }
790: }
791: }
792: if ($target eq 'grade') {
793: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
794: &finalize_storage();
795: }
1.284 albertel 796: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
797: && $env{'form.answer_output_mode'} ne 'tex') {
1.294 albertel 798: $result.=&Apache::lonxml::xmlend().'</html>';
799: # normally we get it from above, but in CSTR
1.172 albertel 800: # we always show answer mode too.
1.159 albertel 801: }
802: } elsif ($target eq 'meta') {
803: if ($Apache::inputtags::part eq '0') {
1.179 albertel 804: @Apache::inputtags::response=();
1.159 albertel 805: $result=&Apache::response::mandatory_part_meta;
806: }
1.215 albertel 807: $result.=&Apache::response::meta_part_order();
1.258 albertel 808: $result.=&Apache::response::meta_response_order();
1.159 albertel 809: } elsif ($target eq 'edit') {
810: &Apache::lonxml::debug("in end_problem with $target, edit");
811: $result = &problem_edit_footer();
812: }
1.155 albertel 813:
1.284 albertel 814: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 815: &Apache::inputtags::check_for_duplicate_ids();
816: }
1.204 albertel 817:
818: &reset_problem_globals('problem');
1.159 albertel 819:
820: return $result;
1.48 albertel 821: }
822:
1.108 albertel 823:
1.48 albertel 824: sub start_library {
1.159 albertel 825: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
826: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 827: if ($$tagstack[0] eq 'library') {
828: &init_problem_globals('library');
829: $Apache::lonhomework::type='problem';
830: }
1.159 albertel 831: if ($target eq 'edit') {
832: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
833: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
834: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
835: &problem_edit_header();
836: my $temp=&Apache::edit::insertlist($target,$token);
837: $result.=$temp;
838: } elsif ($target eq 'modified') {
839: $result=$token->[4];
840: $result.=&Apache::edit::handle_insert();
841: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 842: $env{'request.state'} eq "construct" ) {
1.159 albertel 843: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
844: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
845: my $name=&get_resource_name($parstack,$safeeval);
846: my $rndseed=&setup_rndseed($safeeval);
847: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 848: $body_tag_start \n $form_tag_start".
1.159 albertel 849: '<input type="hidden" name="submitted" value="yes" />';
850: $result.=&problem_web_to_edit_header($rndseed);
851: }
852: return $result;
1.48 albertel 853: }
854:
855: sub end_library {
1.159 albertel 856: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
857: my $result='';
858: if ($target eq 'edit') {
859: $result=&problem_edit_footer();
860: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 861: $env{'request.state'} eq "construct") {
1.280 albertel 862: $result.='</form>'.&Apache::loncommon::endbodytag().
863: &Apache::lonxml::xmlend();
1.159 albertel 864: }
1.204 albertel 865: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 866: return $result;
1.197 www 867: }
868:
869: sub start_definetag {
870: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
871:
872: my $result;
873:
874: my $name = $token->[2]->{'name'};
875: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
876: if ($name=~/^\//) {
877: $result=
878: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
879: } else {
880: $result=
881: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
882: }
883: $skip=~s/\</\<\;/gs;
884: $skip=~s/\>/\>\;/gs;
885: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
886: return $result;
887: }
888:
889: sub end_definetag {
890: return '';
1.1 albertel 891: }
892:
893: sub start_block {
1.201 albertel 894: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 895:
896: my $result;
1.1 albertel 897:
1.160 albertel 898: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 899: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 900: my $code = $token->[2]->{'condition'};
1.201 albertel 901: if (defined($code)) {
1.137 albertel 902: if (!$Apache::lonxml::default_homework_loaded) {
903: &Apache::lonxml::default_homework_load($safeeval);
904: }
1.131 albertel 905: $result = &Apache::run::run($code,$safeeval);
906: &Apache::lonxml::debug("block :$code: returned :$result:");
907: } else {
908: $result='1';
909: }
910: if ( ! $result ) {
1.201 albertel 911: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 912: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
913: }
914: $result='';
915: } elsif ($target eq 'edit') {
916: $result .=&Apache::edit::tag_start($target,$token);
917: $result .=&Apache::edit::text_arg('Test Condition:','condition',
918: $token,40);
919: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
920: } elsif ($target eq 'modified') {
921: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
922: $safeeval,'condition');
923: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 924: }
1.131 albertel 925: return $result;
1.1 albertel 926: }
927:
928: sub end_block {
1.167 www 929: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
930: my $result;
931: if ($target eq "edit") {
932: $result.= &Apache::edit::tag_end($target,$token,'');
933: }
934: return $result;
935: }
936:
937: sub start_languageblock {
1.201 albertel 938: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 939:
940: my $result;
941:
942: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
943: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 944: my $include = $token->[2]->{'include'};
945: my $exclude = $token->[2]->{'exclude'};
946: my %languages=&Apache::loncommon::display_languages();
947: $result='1';
948: if ($include) {
949: $result='';
950: foreach (split(/\,/,$include)) {
951: if ($languages{$_}) { $result='1'; }
952: }
953: }
954: if ($exclude) {
955: foreach (split(/\,/,$exclude)) {
956: if ($languages{$_}) { $result='0'; }
957: }
958: }
959: if ( ! $result ) {
960: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
961: $style);
962: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
963: }
964: $result='';
1.167 www 965: } elsif ($target eq 'edit') {
966: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 967: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 968: $token,40);
1.211 albertel 969: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 970: $token,40);
971: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
972: } elsif ($target eq 'modified') {
973: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 974: $safeeval,'include',
975: 'exclude');
1.167 www 976: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
977: }
978: return $result;
979: }
980:
981: sub end_languageblock {
1.170 www 982: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
983: my $result;
1.201 albertel 984: if ($target eq "edit") {
1.170 www 985: $result.= &Apache::edit::tag_end($target,$token,'');
986: }
987: return $result;
988: }
989:
990: sub start_instructorcomment {
1.201 albertel 991: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 992:
993: my $result;
994:
995: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
996: $target eq 'tex' || $target eq 'analyze') {
1.284 albertel 997: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
998: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 999: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1000: $parser,$style);
1.170 www 1001: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1002: }
1003: $result='';
1004: } elsif ($target eq 'edit') {
1005: $result .=&Apache::edit::tag_start($target,$token);
1006: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1007: }
1008: return $result;
1009: }
1010:
1011: sub end_instructorcomment {
1.159 albertel 1012: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1013: my $result;
1014: if ($target eq "edit") {
1015: $result.= &Apache::edit::tag_end($target,$token,'');
1016: }
1017: return $result;
1.4 tsai 1018: }
1019:
1020: sub start_while {
1.159 albertel 1021: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1022:
1.160 albertel 1023: my $result;
1.161 albertel 1024: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 1025: $target eq 'tex' || $target eq 'analyze') {
1026: my $code = $token->[2]->{'condition'};
1.4 tsai 1027:
1.160 albertel 1028: push( @Apache::structuretags::whileconds, $code);
1029: if (!$Apache::lonxml::default_homework_loaded) {
1030: &Apache::lonxml::default_homework_load($safeeval);
1031: }
1032: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 1033: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 1034: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1035: push( @Apache::structuretags::whileline, $token->[5]);
1036: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1037: if ( $result ) {
1038: &Apache::lonxml::newparser($parser,\$bodytext);
1039: }
1040: } elsif ($target eq 'edit') {
1041: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1042: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1043: $token,40);
1044: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1045: } elsif ($target eq 'modified') {
1046: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1047: $safeeval,'condition');
1048: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1049: }
1.160 albertel 1050: return $result;
1.4 tsai 1051: }
1052:
1053: sub end_while {
1.159 albertel 1054: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1055: my $result;
1056:
1057: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1058: $target eq 'tex' || $target eq 'analyze') {
1059: my $code = pop(@Apache::structuretags::whileconds);
1060: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1061: my $line = pop(@Apache::structuretags::whileline);
1062: my $return = &Apache::run::run($code,$safeeval);
1063: my $starttime=time;
1064: my $error=0;
1065: while ($return) {
1066: if (time-$starttime >
1067: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1068: #$return = 0; $error=1; next;
1.161 albertel 1069: }
1070: $result.=&Apache::scripttag::xmlparse($bodytext);
1071: $return = &Apache::run::run($code,$safeeval);
1072: }
1073: if ($error) {
1.270 albertel 1074: &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 1075: }
1076: } elsif ($target eq "edit") {
1077: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1078: }
1.160 albertel 1079: return $result;
1.1 albertel 1080: }
1.6 tsai 1081:
1.160 albertel 1082: # <randomlist show="1">
1.6 tsai 1083: # <tag1>..</tag1>
1084: # <tag2>..</tag2>
1085: # <tag3>..</tag3>
1.160 albertel 1086: # ...
1.6 tsai 1087: # </randomlist>
1088: sub start_randomlist {
1.159 albertel 1089: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1090: my $result;
1091: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1092: $target eq 'tex' || $target eq 'analyze') {
1093: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1094: my $b_parser= HTML::LCParser->new(\$body);
1095: $b_parser->xml_mode(1);
1096: $b_parser->marked_sections(1);
1.159 albertel 1097: my $b_tok;
1098: my @randomlist;
1099: my $list_item;
1100: while($b_tok = $b_parser->get_token() ) {
1101: if($b_tok->[0] eq 'S') { # start tag
1102: # get content of the tag until matching end tag
1103: # get all text upto the matching tag
1104: # and push the content into @randomlist
1105: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1106: $b_parser);
1107: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1108: push(@randomlist,$list_item);
1109: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1110: # $list_item</b>";
1111: }
1112: if($b_tok->[0] eq 'T') { # text
1113: # what to do with text in between tags?
1114: # print "<b>TEXT $b_tok->[1]</b><br />";
1115: }
1116: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1117: # print "<b>END-TAG $b_tok->[1]</b><br />";
1118: # }
1119: }
1.303 albertel 1120: if (@randomlist) {
1121: my @idx_arr = (0 .. $#randomlist);
1122: &Apache::structuretags::shuffle(\@idx_arr);
1123: my $bodytext = '';
1124: my $show=$#randomlist;
1125: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1126: $showarg--;
1127: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1128: for(0 .. $show) {
1129: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1130: }
1131: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1132: }
1133: } elsif ($target eq 'edit' ) {
1134: $result .=&Apache::edit::tag_start($target,$token);
1135: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1136: $token,5);
1137: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1138: } elsif ($target eq 'modified' ) {
1139: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1140: $safeeval,'show');
1141: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1142: }
1143: return $result;
1.7 tsai 1144: }
1145:
1146: sub shuffle {
1147: my $a=shift;
1148: my $i;
1.303 albertel 1149: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1150: &Apache::response::pushrandomnumber();
1.159 albertel 1151: for($i=@$a;--$i;) {
1152: my $j=int(&Math::Random::random_uniform() * ($i+1));
1153: next if $i == $j;
1154: @$a[$i,$j] = @$a[$j,$i];
1155: }
1.251 albertel 1156: &Apache::response::poprandomnumber();
1.7 tsai 1157: }
1.6 tsai 1158: }
1159:
1160: sub end_randomlist {
1.159 albertel 1161: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1162: my $result;
1163: if ($target eq 'edit' ) {
1164: $result=&Apache::edit::tag_end($target,$token,
1165: 'End Randomly Parsed Block');
1166: }
1167: return $result;
1.6 tsai 1168: }
1169:
1.283 albertel 1170: sub ordered_show_check {
1171: my $last_part=$Apache::inputtags::partlist[-2];
1172: my $in_order=
1173: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1174: my $in_order_show=1;
1175: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1176: $in_order_show=&Apache::response::check_status($last_part);
1177: }
1178: return $in_order_show;
1179: }
1180:
1.11 albertel 1181: sub start_part {
1.159 albertel 1182: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.311 ! foxr 1183: &Apache::lonxml::startredirection; # we'll use redirection to fix up duedates.
1.159 albertel 1184: my $result='';
1185: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1186: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1187: $Apache::inputtags::part=$id;
1.177 albertel 1188: push(@Apache::inputtags::partlist,$id);
1189: @Apache::inputtags::response=();
1.159 albertel 1190: @Apache::inputtags::previous=();
1191: @Apache::inputtags::previous_version=();
1.241 albertel 1192: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1193: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1194: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1195: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1196: my $in_order_show=&ordered_show_check();
1.214 albertel 1197: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1198: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1199: &Apache::run::run($expression,$safeeval);
1.159 albertel 1200:
1201: if ($target eq 'meta') {
1.224 www 1202: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1203: return &Apache::response::mandatory_part_meta.
1204: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1205: } elsif ($target eq 'web' || $target eq 'grade' ||
1206: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1207: if ($hidden || !$in_order_show) {
1.159 albertel 1208: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1209: } else {
1210: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1211: push (@Apache::inputtags::status,$status);
1212: my $expression='$external::datestatus="'.$status.'";';
1213: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1214: &Apache::run::run($expression,$safeeval);
1.284 albertel 1215: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1216: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1217: }
1.216 albertel 1218: if (( $status eq 'CLOSED' ) ||
1219: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1220: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1221: ( $status eq 'BANNED') ||
1222: ( $status eq 'UNAVAILABLE') ||
1223: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 1224: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1225: if ( $target eq "web" ) {
1.211 albertel 1226: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1227: } elsif ( $target eq 'tex' ) {
1.284 albertel 1228: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1229: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1230: } else {
1.211 albertel 1231: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1232: }
1.159 albertel 1233: }
1234: } else {
1235: if ($target eq 'tex') {
1.284 albertel 1236: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1237: if ($$tagstack[-2] eq 'td') {
1238: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1239: } else {
1240: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1241: }
1.195 sakharuk 1242: }
1.159 albertel 1243: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1244: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1245: my @allkeys = split /,/,$allkeys;
1246: my $allow_print_points = 0;
1247: foreach my $partial_key (@allkeys) {
1.230 albertel 1248: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1249: if ($1 ne '0') {$allow_print_points=1;}
1250: }
1251: }
1.275 albertel 1252: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1253: if (defined($maxtries) && $maxtries < 0) {
1254: $allow_print_points=0;
1255: }
1.302 albertel 1256: if (lc($env{'course.'.$env{'request.course.id'}.
1257: '.disableexampointprint'}) eq 'yes') {
1258: $allow_print_points=0;
1259: }
1.222 sakharuk 1260: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1261: } elsif ($target eq 'web') {
1262: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1263: }
1264: }
1265: }
1266: } elsif ($target eq 'edit') {
1267: $result.=&Apache::edit::tag_start($target,$token);
1268: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1269: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1270: ' '.
1271: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1272: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1273: } elsif ($target eq 'modified') {
1274: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1275: $safeeval,'id','display');
1.159 albertel 1276: if ($constructtag) {
1.225 albertel 1277: #limiting ids to only letters numbers, and space
1.224 www 1278: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1279: $result = &Apache::edit::rebuild_tag($token);
1280: $result.=&Apache::edit::handle_insert();
1281: }
1282: }
1283: return $result;
1.11 albertel 1284: }
1285:
1286: sub end_part {
1.159 albertel 1287: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1288: &Apache::lonxml::debug("in end_part $target ");
1289: my $status=$Apache::inputtags::status['-1'];
1290: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1291: my $in_order_show=&ordered_show_check();
1.311 ! foxr 1292: my $result= &Apache::lonxml::endredirection; # $resutl has entire <part> body.
1.159 albertel 1293: if ( $target eq 'meta' ) {
1.311 ! foxr 1294: $result.='';
1.249 albertel 1295: } elsif ($target eq 'grade') {
1296: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1297: !$hidden && $in_order_show) {
1.311 ! foxr 1298: $result.=&Apache::inputtags::grade;
1.249 albertel 1299: } else {
1300: # move any submission data to .hidden
1301: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1302: }
1.283 albertel 1303: } elsif (($target eq 'web' || $target eq 'tex') &&
1304: !$hidden && $in_order_show) {
1.159 albertel 1305: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1306: $target);
1.212 albertel 1307: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1308: $gradestatus='';
1309: }
1.311 ! foxr 1310: $result.=$gradestatus;
1.265 sakharuk 1311: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1312: } elsif ($target eq 'edit') {
1.311 ! foxr 1313: $result.=&Apache::edit::end_table();
1.159 albertel 1314: }
1315: pop @Apache::inputtags::status;
1316: $Apache::inputtags::part='';
1.295 albertel 1317: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1318: return $result;
1.11 albertel 1319: }
1.1 albertel 1320:
1.25 albertel 1321: sub start_preduedate {
1.159 albertel 1322: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1323: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1.236 albertel 1324: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1325: if (!$Apache::lonhomework::scantronmode &&
1326: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1327: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1328: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.159 albertel 1329: &Apache::lonxml::get_all_text("/preduedate",$parser);
1330: }
1.24 albertel 1331: }
1.159 albertel 1332: return '';
1.24 albertel 1333: }
1334:
1.25 albertel 1335: sub end_preduedate {
1.159 albertel 1336: return '';
1.24 albertel 1337: }
1338:
1.25 albertel 1339: sub start_postanswerdate {
1.159 albertel 1340: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.234 albertel 1341: if ($target eq 'web' || $target eq 'grade') {
1.300 albertel 1342: if ($Apache::lonhomework::scantronmode ||
1343: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.159 albertel 1344: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1345: }
1346: } elsif ($target eq 'tex') {
1.234 albertel 1347: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1.159 albertel 1348: }
1349: return '';
1.24 albertel 1350: }
1351:
1.25 albertel 1352: sub end_postanswerdate {
1.159 albertel 1353: return '';
1.24 albertel 1354: }
1355:
1.25 albertel 1356: sub start_notsolved {
1.159 albertel 1357: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1358: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1359: $target eq 'tex') {
1360: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1361: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1362: if ($gradestatus =~ /^correct/ &&
1363: &Apache::response::show_answer()) {
1.159 albertel 1364: &Apache::lonxml::debug("skipping");
1365: &Apache::lonxml::get_all_text("/notsolved",$parser);
1366: }
1.24 albertel 1367: }
1.159 albertel 1368: return '';
1.24 albertel 1369: }
1370:
1.25 albertel 1371: sub end_notsolved {
1.159 albertel 1372: return '';
1.24 albertel 1373: }
1374:
1375: sub start_solved {
1.159 albertel 1376: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1377: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1378: $target eq 'tex') {
1379: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1380: if ($gradestatus !~ /^correct/ ||
1381: !&Apache::response::show_answer()) {
1.159 albertel 1382: &Apache::lonxml::get_all_text("/solved",$parser);
1383: }
1.24 albertel 1384: }
1.159 albertel 1385: return '';
1.24 albertel 1386: }
1387:
1388: sub end_solved {
1.248 albertel 1389: return '';
1390: }
1391:
1392: sub start_problemtype {
1393: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1394: my $result;
1395: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1396: $target eq 'tex' || $target eq 'analyze') {
1397: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1398: if (!defined($mode)) { $mode='show'; }
1399: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1400: my $found=0;
1401: foreach my $type (split(',',$for)) {
1402: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1403: }
1404: if ($mode eq 'show' && !$found) {
1405: &Apache::lonxml::get_all_text("/problemtype",$parser);
1406: }
1407: if ($mode eq 'hide' && $found) {
1408: &Apache::lonxml::get_all_text("/problemtype",$parser);
1409: }
1410: } elsif ($target eq 'edit') {
1411: $result .=&Apache::edit::tag_start($target,$token);
1412: $result.=&Apache::edit::select_arg('Mode:','mode',
1413: [['show','Show'],
1414: ['hide','Hide']]
1415: ,$token);
1416: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1417: [ ['exam','Exam/Quiz Problem'],
1418: ['survey','Survey'],
1419: ['problem','Homework Problem'] ]
1420: ,$token);
1421: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1422: } elsif ($target eq 'modified') {
1423: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1424: $safeeval,'mode','for');
1425: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1426: }
1427: return $result;
1428: }
1429:
1430: sub end_problemtype {
1.159 albertel 1431: return '';
1.24 albertel 1432: }
1.34 albertel 1433:
1434: sub start_startouttext {
1.159 albertel 1435: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1436: my @result=(''.'');
1437: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1438: return (@result);
1.34 albertel 1439: }
1.159 albertel 1440:
1.34 albertel 1441: sub end_startouttext {
1.159 albertel 1442: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1443: my $result='';
1444: my $text='';
1445:
1446: if ($target eq 'edit') {
1447: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1.211 albertel 1448: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1449: <td>".&mt('Delete:').
1.159 albertel 1450: &Apache::edit::deletelist($target,$token)
1451: ."</td>
1.42 albertel 1452: <td>".
1.159 albertel 1453: &Apache::edit::insertlist($target,$token).
1454: &Apache::edit::end_row().
1455: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1456: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1457: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1458: }
1459: if ($target eq 'modified') {
1.219 albertel 1460: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1461: }
1462: if ($target eq 'tex') {
1463: $result .= '\noindent ';
1464: }
1465: return $result;
1.34 albertel 1466: }
1.159 albertel 1467:
1.34 albertel 1468: sub start_endouttext {
1.159 albertel 1469: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1470: my $result='';
1471: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1472: if ($target eq "modified") {
1473: $result='<endouttext />'.
1474: &Apache::edit::handle_insertafter('startouttext'); }
1475: return $result;
1.34 albertel 1476: }
1.159 albertel 1477:
1.34 albertel 1478: sub end_endouttext {
1.159 albertel 1479: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1480: my @result=('','');
1481: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1482: return (@result);
1.34 albertel 1483: }
1.159 albertel 1484:
1.45 albertel 1485: sub delete_startouttext {
1.159 albertel 1486: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1487: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1488: my $text=$$parser['-1']->get_text("/endouttext");
1489: my $ntoken=$$parser['-1']->get_token();
1490: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1491: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1492: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1493: # they did the last time round
1494: &Apache::lonxml::increasedepth($ntoken);
1495: &Apache::lonxml::decreasedepth($ntoken);
1496: return 1;
1.193 www 1497: }
1498:
1499: sub start_simpleeditbutton {
1500: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1501: my $result='';
1.284 albertel 1502: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1503: ($target eq 'web') &&
1.284 albertel 1504: (&Apache::lonnet::allowed('srm',$env{'request.course.id'}))) {
1505: my $url=$env{'request.noversionuri'};
1.193 www 1506: $url=~s/\?.*$//;
1.278 albertel 1507: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1508: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1509: '<a href="'.$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 1510: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1511: }
1512: return $result;
1513: }
1514:
1515: sub end_simpleeditbutton {
1516: return '';
1.45 albertel 1517: }
1.34 albertel 1518:
1.1 albertel 1519: 1;
1520: __END__
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