Annotation of loncom/homework/structuretags.pm, revision 1.308
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.308 ! foxr 4: # $Id: structuretags.pm,v 1.307 2005/11/01 21:52:47 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) {
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:
1.308 ! foxr 502: # Problems don't nest and we don't allow more than one <problem> in
! 503: # a .problem file.
! 504: #
1.184 albertel 505: if ( $Apache::inputtags::part ne '' ||
506: $Apache::lonhomework::parsing_a_problem) {
507: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
508: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
1.159 albertel 509: return '';
510: }
1.184 albertel 511:
512: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 513: &init_problem_globals('problem');
1.166 albertel 514:
1.284 albertel 515: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 516: $Apache::lonhomework::scantronmode=1;
517: }
1.161 albertel 518:
1.246 albertel 519: &initialize_storage();
1.159 albertel 520: if ($target ne 'analyze') {
521: if ($target eq 'web') {
522: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 523: }
1.284 albertel 524: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 525: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 526: if (($env{'request.state'} eq 'construct') &&
527: defined($env{'form.problemtype'})) {
528: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 529: }
1.240 albertel 530: &Apache::lonxml::debug("Found this to be of type :$Apache::ltonhomework::type:");
1.159 albertel 531: }
1.164 albertel 532: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 533: my $uri=$env{'request.uri'};
1.159 albertel 534: if ($uri=~/\.(\w+)$/) {
535: $Apache::lonhomework::type=$1;
536: &Apache::lonxml::debug("Using type of $1");
537: } else {
538: $Apache::lonhomework::type='problem';
539: &Apache::lonxml::debug("Using default type, problem, :$uri:");
540: }
1.87 albertel 541: }
1.301 albertel 542: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 543:
1.159 albertel 544: #added vars to the scripting enviroment
1.213 albertel 545: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 546: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 547: &Apache::run::run($expression,$safeeval);
1.159 albertel 548: my $status;
549: my $accessmsg;
550:
551: #should get back a <html> or the neccesary stuff to start XML/MathML
552: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
553: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.284 albertel 554: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 555:
556: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
557: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
558: $target eq 'tex') {
559: #handle exam checkout
560: if ($Apache::lonhomework::type eq 'exam') {
561: my $token=
562: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 563: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 564: $token=&Apache::lonxml::maketoken();
565: $Apache::lonhomework::history{"resource.0.outtoken"}=
566: $token;
567: }
568: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 569: }
1.284 albertel 570: if ($env{'form.markaccess'}) {
1.252 albertel 571: &Apache::lonnet::set_first_access('map');
572: }
1.159 albertel 573: #handle rand seed in construction space
574: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 575: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 576: if ($env{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 577: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
578: $rndseed.'" />'.
579: '<input type="submit" name="resetdata"
1.211 albertel 580: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 581: '<input type="hidden" name="username"
1.284 albertel 582: value="'.$env{'form.username'}.'" />';
583: if ($env{'user.adv'}) {
1.267 albertel 584: $form_tag_start.=
1.300 albertel 585: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 586: if (defined($env{'form.showallfoils'})) {
1.267 albertel 587: $form_tag_start.='checked="on"';
588: }
1.300 albertel 589: $form_tag_start.= ' />'.&mt(' Show All Foils').
590: '</label>';
1.267 albertel 591: }
592: $form_tag_start.='<hr />';
1.162 albertel 593: }
1.159 albertel 594: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
595: push (@Apache::inputtags::status,$status);
596: my $expression='$external::datestatus="'.$status.'";';
597: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
598: &Apache::run::run($expression,$safeeval);
599: &Apache::lonxml::debug("Got $status");
600: if (( $status eq 'CLOSED' ) ||
601: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 602: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 603: ( $status eq 'BANNED') ||
1.216 albertel 604: ( $status eq 'UNAVAILABLE') ||
605: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 606: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
607: if ( $target eq "web" ) {
608: $result.= $head_tag_start.'</head>';
609: my $msg=$body_tag_start;
610: if ($status eq 'UNAVAILABLE') {
1.245 albertel 611: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 612: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 613: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 614: }
1.216 albertel 615: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 616: $msg.='The problem '.$accessmsg;
617: } elsif ($status eq 'UNCHECKEDOUT') {
618: $msg.=&checkout_msg;
1.252 albertel 619: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 620: $msg.=&firstaccess_msg($accessmsg,$symb);
1.159 albertel 621: }
622: $result.=$msg.'<br />';
623: } elsif ($target eq 'tex') {
624: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
625: if ($status eq 'UNAVAILABLE') {
1.211 albertel 626: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 627: } else {
1.211 albertel 628: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 629: }
630: }
631: } elsif ($target eq 'web') {
632: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 633: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 634: $body_tag_start \n $form_tag_start".
1.227 albertel 635: '<input type="hidden" name="submitted" value="yes" />';
636: # create a page header and exit
1.284 albertel 637: if ($env{'request.state'} eq "construct") {
638: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 639: }
640: # if we are viewing someone else preserve that info
1.284 albertel 641: if (defined $env{'form.grade_symb'}) {
1.227 albertel 642: foreach my $field ('symb','courseid','domain','username') {
643: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 644: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 645: }
646: }
647: } elsif ($target eq 'tex') {
1.192 sakharuk 648: my $startminipage = '';
1.284 albertel 649: if (not $env{'form.problem_split'}=~/yes/) {
1.192 sakharuk 650: $startminipage = '\begin{minipage}{\textwidth}';
1.178 sakharuk 651: }
1.159 albertel 652: my $id = $Apache::inputtags::part;
653: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 654: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.223 sakharuk 655: my @packages = split /,/,$packages;
656: my $allow_print_points = 0;
657: foreach my $partial_key (@packages) {
1.230 albertel 658: if ($partial_key=~m/^part_0$/) {
1.223 sakharuk 659: $allow_print_points=1;
1.159 albertel 660: }
661: }
1.276 albertel 662: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
663: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1.302 albertel 664: if (lc($env{'course.'.$env{'request.course.id'}.
665: '.disableexampointprint'}) eq 'yes') {
666: $allow_print_points=0;
667: }
1.308 ! foxr 668: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
! 669: 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 ';
! 670: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
! 671: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
! 672:
! 673: # Figure out what the due date is and if we need to print it in the problem header.
! 674: # We have been logging the last due date written to file.
! 675: #
! 676:
! 677:
! 678: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
! 679: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.159 albertel 680: my $temp_file;
1.284 albertel 681: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1.308 ! foxr 682:
! 683: # Figure out what the last printed due date is or set it to the epoch if no duedates
! 684: # have been printed.
! 685:
! 686: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1.159 albertel 687: if (-e $filename) {
688: $temp_file = Apache::File->new($filename);
1.308 ! foxr 689: my @due_file = <$temp_file>;
! 690: $due_file_content = $due_file[$#due_file];
! 691: chomp $due_file_content;
! 692: }
! 693: # The big change; Due do the comparison on
! 694: # the absolute time rather than textual time since that is format independent.
! 695: #
! 696: if ($due_file_content ne $duetime) {
1.159 albertel 697: $temp_file = Apache::File->new('>'.$filename);
1.308 ! foxr 698: print $temp_file "$duetime\n";
1.284 albertel 699: if (not $env{'request.symb'} =~ m/\.page_/) {
1.159 albertel 700: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1.304 albertel 701: $result .= $begin_doc.
702: '\textit{Due date: '.$duedate.'} '.$toc_line;
1.159 albertel 703: } else {
1.304 albertel 704: $result .= $begin_doc.$toc_line;
1.159 albertel 705: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
706: }
1.104 sakharuk 707: } else {
1.159 albertel 708: $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
1.104 sakharuk 709: }
1.101 sakharuk 710: } else {
1.284 albertel 711: if (not $env{'request.symb'} =~ m/\.page_/) {
1.304 albertel 712: $result .= $begin_doc.$toc_line;
1.159 albertel 713: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
714: } else {
715: $result .= '\vskip 1mm \\\\\\\\';
716: }
717: }
1.99 sakharuk 718: }
1.159 albertel 719: } elsif ($target eq 'edit') {
720: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
721: &problem_edit_header();
1.226 albertel 722: $Apache::lonxml::warnings_error_header=
723: &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 724: my $temp=&Apache::edit::insertlist($target,$token);
725: $result.=$temp;
726: } elsif ($target eq 'modified') {
727: $result=$token->[4];
728: $result.=&Apache::edit::handle_insert();
729: } else {
730: # page_start returned a starting result, delete it if we don't need it
731: $result = '';
1.99 sakharuk 732: }
1.159 albertel 733: return $result;
1.9 albertel 734: }
735:
736: sub end_problem {
1.159 albertel 737: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
738: my $result='';
739: my $status=$Apache::inputtags::status['-1'];
740: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
741: $target eq 'tex') {
1.249 albertel 742: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 743: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 744: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
745: &Apache::inputtags::grade;
746: } else {
747: # move any submission data to .hidden
748: &Apache::inputtags::hidealldata($Apache::inputtags::part);
749: }
1.159 albertel 750: } elsif ( ($target eq 'web' || $target eq 'tex') &&
751: $Apache::inputtags::part eq '0' &&
1.252 albertel 752: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 753: # if part is zero, no <part>s existed, so we need show the current
754: # grading status
755: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
756: $result.= $gradestatus;
757: }
758: if (
1.284 albertel 759: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 760: ($target eq 'answer') || ($target eq 'tex')
761: ) {
1.227 albertel 762: if ($target ne 'tex' &&
1.284 albertel 763: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 764: $result.="</form>";
765: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
1.159 albertel 766: }
767: if ($target eq 'web') {
1.281 albertel 768: $result.=&Apache::lonxml::xmlend().'</html>';
1.159 albertel 769: } elsif ($target eq 'tex') {
1.178 sakharuk 770: my $endminipage = '';
1.284 albertel 771: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 772: $endminipage = '\end{minipage}';
773: }
1.284 albertel 774: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 775: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 776: $result=~s/<\/html>//;
1.159 albertel 777: } else {
1.262 sakharuk 778: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 779: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 780: $result .= $endminipage.'\end{document} ';
781: } else {
782: $result .= '';
783: }
1.159 albertel 784: }
785: }
786: }
787: if ($target eq 'grade') {
788: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
789: &finalize_storage();
790: }
1.284 albertel 791: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
792: && $env{'form.answer_output_mode'} ne 'tex') {
1.294 albertel 793: $result.=&Apache::lonxml::xmlend().'</html>';
794: # normally we get it from above, but in CSTR
1.172 albertel 795: # we always show answer mode too.
1.159 albertel 796: }
797: } elsif ($target eq 'meta') {
798: if ($Apache::inputtags::part eq '0') {
1.179 albertel 799: @Apache::inputtags::response=();
1.159 albertel 800: $result=&Apache::response::mandatory_part_meta;
801: }
1.215 albertel 802: $result.=&Apache::response::meta_part_order();
1.258 albertel 803: $result.=&Apache::response::meta_response_order();
1.159 albertel 804: } elsif ($target eq 'edit') {
805: &Apache::lonxml::debug("in end_problem with $target, edit");
806: $result = &problem_edit_footer();
807: }
1.155 albertel 808:
1.284 albertel 809: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 810: &Apache::inputtags::check_for_duplicate_ids();
811: }
1.204 albertel 812:
813: &reset_problem_globals('problem');
1.159 albertel 814:
815: return $result;
1.48 albertel 816: }
817:
1.108 albertel 818:
1.48 albertel 819: sub start_library {
1.159 albertel 820: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
821: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 822: if ($$tagstack[0] eq 'library') {
823: &init_problem_globals('library');
824: $Apache::lonhomework::type='problem';
825: }
1.159 albertel 826: if ($target eq 'edit') {
827: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
828: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
829: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
830: &problem_edit_header();
831: my $temp=&Apache::edit::insertlist($target,$token);
832: $result.=$temp;
833: } elsif ($target eq 'modified') {
834: $result=$token->[4];
835: $result.=&Apache::edit::handle_insert();
836: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 837: $env{'request.state'} eq "construct" ) {
1.159 albertel 838: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
839: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
840: my $name=&get_resource_name($parstack,$safeeval);
841: my $rndseed=&setup_rndseed($safeeval);
842: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 843: $body_tag_start \n $form_tag_start".
1.159 albertel 844: '<input type="hidden" name="submitted" value="yes" />';
845: $result.=&problem_web_to_edit_header($rndseed);
846: }
847: return $result;
1.48 albertel 848: }
849:
850: sub end_library {
1.159 albertel 851: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
852: my $result='';
853: if ($target eq 'edit') {
854: $result=&problem_edit_footer();
855: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 856: $env{'request.state'} eq "construct") {
1.280 albertel 857: $result.='</form>'.&Apache::loncommon::endbodytag().
858: &Apache::lonxml::xmlend();
1.159 albertel 859: }
1.204 albertel 860: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 861: return $result;
1.197 www 862: }
863:
864: sub start_definetag {
865: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
866:
867: my $result;
868:
869: my $name = $token->[2]->{'name'};
870: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
871: if ($name=~/^\//) {
872: $result=
873: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
874: } else {
875: $result=
876: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
877: }
878: $skip=~s/\</\<\;/gs;
879: $skip=~s/\>/\>\;/gs;
880: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
881: return $result;
882: }
883:
884: sub end_definetag {
885: return '';
1.1 albertel 886: }
887:
888: sub start_block {
1.201 albertel 889: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 890:
891: my $result;
1.1 albertel 892:
1.160 albertel 893: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 894: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 895: my $code = $token->[2]->{'condition'};
1.201 albertel 896: if (defined($code)) {
1.137 albertel 897: if (!$Apache::lonxml::default_homework_loaded) {
898: &Apache::lonxml::default_homework_load($safeeval);
899: }
1.131 albertel 900: $result = &Apache::run::run($code,$safeeval);
901: &Apache::lonxml::debug("block :$code: returned :$result:");
902: } else {
903: $result='1';
904: }
905: if ( ! $result ) {
1.201 albertel 906: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 907: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
908: }
909: $result='';
910: } elsif ($target eq 'edit') {
911: $result .=&Apache::edit::tag_start($target,$token);
912: $result .=&Apache::edit::text_arg('Test Condition:','condition',
913: $token,40);
914: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
915: } elsif ($target eq 'modified') {
916: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
917: $safeeval,'condition');
918: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 919: }
1.131 albertel 920: return $result;
1.1 albertel 921: }
922:
923: sub end_block {
1.167 www 924: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
925: my $result;
926: if ($target eq "edit") {
927: $result.= &Apache::edit::tag_end($target,$token,'');
928: }
929: return $result;
930: }
931:
932: sub start_languageblock {
1.201 albertel 933: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 934:
935: my $result;
936:
937: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
938: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 939: my $include = $token->[2]->{'include'};
940: my $exclude = $token->[2]->{'exclude'};
941: my %languages=&Apache::loncommon::display_languages();
942: $result='1';
943: if ($include) {
944: $result='';
945: foreach (split(/\,/,$include)) {
946: if ($languages{$_}) { $result='1'; }
947: }
948: }
949: if ($exclude) {
950: foreach (split(/\,/,$exclude)) {
951: if ($languages{$_}) { $result='0'; }
952: }
953: }
954: if ( ! $result ) {
955: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
956: $style);
957: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
958: }
959: $result='';
1.167 www 960: } elsif ($target eq 'edit') {
961: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 962: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 963: $token,40);
1.211 albertel 964: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 965: $token,40);
966: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
967: } elsif ($target eq 'modified') {
968: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 969: $safeeval,'include',
970: 'exclude');
1.167 www 971: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
972: }
973: return $result;
974: }
975:
976: sub end_languageblock {
1.170 www 977: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
978: my $result;
1.201 albertel 979: if ($target eq "edit") {
1.170 www 980: $result.= &Apache::edit::tag_end($target,$token,'');
981: }
982: return $result;
983: }
984:
985: sub start_instructorcomment {
1.201 albertel 986: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 987:
988: my $result;
989:
990: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
991: $target eq 'tex' || $target eq 'analyze') {
1.284 albertel 992: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
993: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 994: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
995: $parser,$style);
1.170 www 996: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
997: }
998: $result='';
999: } elsif ($target eq 'edit') {
1000: $result .=&Apache::edit::tag_start($target,$token);
1001: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1002: }
1003: return $result;
1004: }
1005:
1006: sub end_instructorcomment {
1.159 albertel 1007: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1008: my $result;
1009: if ($target eq "edit") {
1010: $result.= &Apache::edit::tag_end($target,$token,'');
1011: }
1012: return $result;
1.4 tsai 1013: }
1014:
1015: sub start_while {
1.159 albertel 1016: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1017:
1.160 albertel 1018: my $result;
1.161 albertel 1019: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 1020: $target eq 'tex' || $target eq 'analyze') {
1021: my $code = $token->[2]->{'condition'};
1.4 tsai 1022:
1.160 albertel 1023: push( @Apache::structuretags::whileconds, $code);
1024: if (!$Apache::lonxml::default_homework_loaded) {
1025: &Apache::lonxml::default_homework_load($safeeval);
1026: }
1027: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 1028: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 1029: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1030: push( @Apache::structuretags::whileline, $token->[5]);
1031: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1032: if ( $result ) {
1033: &Apache::lonxml::newparser($parser,\$bodytext);
1034: }
1035: } elsif ($target eq 'edit') {
1036: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1037: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1038: $token,40);
1039: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1040: } elsif ($target eq 'modified') {
1041: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1042: $safeeval,'condition');
1043: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1044: }
1.160 albertel 1045: return $result;
1.4 tsai 1046: }
1047:
1048: sub end_while {
1.159 albertel 1049: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1050: my $result;
1051:
1052: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1053: $target eq 'tex' || $target eq 'analyze') {
1054: my $code = pop(@Apache::structuretags::whileconds);
1055: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1056: my $line = pop(@Apache::structuretags::whileline);
1057: my $return = &Apache::run::run($code,$safeeval);
1058: my $starttime=time;
1059: my $error=0;
1060: while ($return) {
1061: if (time-$starttime >
1062: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1063: #$return = 0; $error=1; next;
1.161 albertel 1064: }
1065: $result.=&Apache::scripttag::xmlparse($bodytext);
1066: $return = &Apache::run::run($code,$safeeval);
1067: }
1068: if ($error) {
1.270 albertel 1069: &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 1070: }
1071: } elsif ($target eq "edit") {
1072: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1073: }
1.160 albertel 1074: return $result;
1.1 albertel 1075: }
1.6 tsai 1076:
1.160 albertel 1077: # <randomlist show="1">
1.6 tsai 1078: # <tag1>..</tag1>
1079: # <tag2>..</tag2>
1080: # <tag3>..</tag3>
1.160 albertel 1081: # ...
1.6 tsai 1082: # </randomlist>
1083: sub start_randomlist {
1.159 albertel 1084: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1085: my $result;
1086: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1087: $target eq 'tex' || $target eq 'analyze') {
1088: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1089: my $b_parser= HTML::LCParser->new(\$body);
1090: $b_parser->xml_mode(1);
1091: $b_parser->marked_sections(1);
1.159 albertel 1092: my $b_tok;
1093: my @randomlist;
1094: my $list_item;
1095: while($b_tok = $b_parser->get_token() ) {
1096: if($b_tok->[0] eq 'S') { # start tag
1097: # get content of the tag until matching end tag
1098: # get all text upto the matching tag
1099: # and push the content into @randomlist
1100: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1101: $b_parser);
1102: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1103: push(@randomlist,$list_item);
1104: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1105: # $list_item</b>";
1106: }
1107: if($b_tok->[0] eq 'T') { # text
1108: # what to do with text in between tags?
1109: # print "<b>TEXT $b_tok->[1]</b><br />";
1110: }
1111: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1112: # print "<b>END-TAG $b_tok->[1]</b><br />";
1113: # }
1114: }
1.303 albertel 1115: if (@randomlist) {
1116: my @idx_arr = (0 .. $#randomlist);
1117: &Apache::structuretags::shuffle(\@idx_arr);
1118: my $bodytext = '';
1119: my $show=$#randomlist;
1120: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1121: $showarg--;
1122: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1123: for(0 .. $show) {
1124: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1125: }
1126: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1127: }
1128: } elsif ($target eq 'edit' ) {
1129: $result .=&Apache::edit::tag_start($target,$token);
1130: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1131: $token,5);
1132: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1133: } elsif ($target eq 'modified' ) {
1134: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1135: $safeeval,'show');
1136: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1137: }
1138: return $result;
1.7 tsai 1139: }
1140:
1141: sub shuffle {
1142: my $a=shift;
1143: my $i;
1.303 albertel 1144: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1145: &Apache::response::pushrandomnumber();
1.159 albertel 1146: for($i=@$a;--$i;) {
1147: my $j=int(&Math::Random::random_uniform() * ($i+1));
1148: next if $i == $j;
1149: @$a[$i,$j] = @$a[$j,$i];
1150: }
1.251 albertel 1151: &Apache::response::poprandomnumber();
1.7 tsai 1152: }
1.6 tsai 1153: }
1154:
1155: sub end_randomlist {
1.159 albertel 1156: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1157: my $result;
1158: if ($target eq 'edit' ) {
1159: $result=&Apache::edit::tag_end($target,$token,
1160: 'End Randomly Parsed Block');
1161: }
1162: return $result;
1.6 tsai 1163: }
1164:
1.283 albertel 1165: sub ordered_show_check {
1166: my $last_part=$Apache::inputtags::partlist[-2];
1167: my $in_order=
1168: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1169: my $in_order_show=1;
1170: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1171: $in_order_show=&Apache::response::check_status($last_part);
1172: }
1173: return $in_order_show;
1174: }
1175:
1.11 albertel 1176: sub start_part {
1.159 albertel 1177: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1178: my $result='';
1179: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1180: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1181: $Apache::inputtags::part=$id;
1.177 albertel 1182: push(@Apache::inputtags::partlist,$id);
1183: @Apache::inputtags::response=();
1.159 albertel 1184: @Apache::inputtags::previous=();
1185: @Apache::inputtags::previous_version=();
1.241 albertel 1186: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1187: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1188: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1189: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1190: my $in_order_show=&ordered_show_check();
1.214 albertel 1191: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1192: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1193: &Apache::run::run($expression,$safeeval);
1.159 albertel 1194:
1195: if ($target eq 'meta') {
1.224 www 1196: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1197: return &Apache::response::mandatory_part_meta.
1198: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1199: } elsif ($target eq 'web' || $target eq 'grade' ||
1200: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1201: if ($hidden || !$in_order_show) {
1.159 albertel 1202: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1203: } else {
1204: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1205: push (@Apache::inputtags::status,$status);
1206: my $expression='$external::datestatus="'.$status.'";';
1207: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1208: &Apache::run::run($expression,$safeeval);
1.284 albertel 1209: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1210: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1211: }
1.216 albertel 1212: if (( $status eq 'CLOSED' ) ||
1213: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1214: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1215: ( $status eq 'BANNED') ||
1216: ( $status eq 'UNAVAILABLE') ||
1217: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 1218: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1219: if ( $target eq "web" ) {
1.211 albertel 1220: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1221: } elsif ( $target eq 'tex' ) {
1.284 albertel 1222: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1223: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1224: } else {
1.211 albertel 1225: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1226: }
1.159 albertel 1227: }
1228: } else {
1229: if ($target eq 'tex') {
1.284 albertel 1230: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1231: if ($$tagstack[-2] eq 'td') {
1232: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1233: } else {
1234: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1235: }
1.195 sakharuk 1236: }
1.159 albertel 1237: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1238: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1239: my @allkeys = split /,/,$allkeys;
1240: my $allow_print_points = 0;
1241: foreach my $partial_key (@allkeys) {
1.230 albertel 1242: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1243: if ($1 ne '0') {$allow_print_points=1;}
1244: }
1245: }
1.275 albertel 1246: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1247: if (defined($maxtries) && $maxtries < 0) {
1248: $allow_print_points=0;
1249: }
1.302 albertel 1250: if (lc($env{'course.'.$env{'request.course.id'}.
1251: '.disableexampointprint'}) eq 'yes') {
1252: $allow_print_points=0;
1253: }
1.222 sakharuk 1254: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1255: } elsif ($target eq 'web') {
1256: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1257: }
1258: }
1259: }
1260: } elsif ($target eq 'edit') {
1261: $result.=&Apache::edit::tag_start($target,$token);
1262: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1263: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1264: ' '.
1265: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1266: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1267: } elsif ($target eq 'modified') {
1268: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1269: $safeeval,'id','display');
1.159 albertel 1270: if ($constructtag) {
1.225 albertel 1271: #limiting ids to only letters numbers, and space
1.224 www 1272: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1273: $result = &Apache::edit::rebuild_tag($token);
1274: $result.=&Apache::edit::handle_insert();
1275: }
1276: }
1277: return $result;
1.11 albertel 1278: }
1279:
1280: sub end_part {
1.159 albertel 1281: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1282: &Apache::lonxml::debug("in end_part $target ");
1283: my $status=$Apache::inputtags::status['-1'];
1284: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1285: my $in_order_show=&ordered_show_check();
1.159 albertel 1286: my $result='';
1287: if ( $target eq 'meta' ) {
1288: $result='';
1.249 albertel 1289: } elsif ($target eq 'grade') {
1290: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1291: !$hidden && $in_order_show) {
1.249 albertel 1292: $result=&Apache::inputtags::grade;
1293: } else {
1294: # move any submission data to .hidden
1295: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1296: }
1.283 albertel 1297: } elsif (($target eq 'web' || $target eq 'tex') &&
1298: !$hidden && $in_order_show) {
1.159 albertel 1299: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1300: $target);
1.212 albertel 1301: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1302: $gradestatus='';
1303: }
1.159 albertel 1304: $result=$gradestatus;
1.265 sakharuk 1305: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1306: } elsif ($target eq 'edit') {
1307: $result=&Apache::edit::end_table();
1.159 albertel 1308: }
1309: pop @Apache::inputtags::status;
1310: $Apache::inputtags::part='';
1.295 albertel 1311: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1312: return $result;
1.11 albertel 1313: }
1.1 albertel 1314:
1.25 albertel 1315: sub start_preduedate {
1.159 albertel 1316: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1317: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1.236 albertel 1318: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1319: if (!$Apache::lonhomework::scantronmode &&
1320: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1321: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1322: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.159 albertel 1323: &Apache::lonxml::get_all_text("/preduedate",$parser);
1324: }
1.24 albertel 1325: }
1.159 albertel 1326: return '';
1.24 albertel 1327: }
1328:
1.25 albertel 1329: sub end_preduedate {
1.159 albertel 1330: return '';
1.24 albertel 1331: }
1332:
1.25 albertel 1333: sub start_postanswerdate {
1.159 albertel 1334: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.234 albertel 1335: if ($target eq 'web' || $target eq 'grade') {
1.300 albertel 1336: if ($Apache::lonhomework::scantronmode ||
1337: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.159 albertel 1338: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1339: }
1340: } elsif ($target eq 'tex') {
1.234 albertel 1341: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1.159 albertel 1342: }
1343: return '';
1.24 albertel 1344: }
1345:
1.25 albertel 1346: sub end_postanswerdate {
1.159 albertel 1347: return '';
1.24 albertel 1348: }
1349:
1.25 albertel 1350: sub start_notsolved {
1.159 albertel 1351: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1352: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1353: $target eq 'tex') {
1354: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1355: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1356: if ($gradestatus =~ /^correct/ &&
1357: &Apache::response::show_answer()) {
1.159 albertel 1358: &Apache::lonxml::debug("skipping");
1359: &Apache::lonxml::get_all_text("/notsolved",$parser);
1360: }
1.24 albertel 1361: }
1.159 albertel 1362: return '';
1.24 albertel 1363: }
1364:
1.25 albertel 1365: sub end_notsolved {
1.159 albertel 1366: return '';
1.24 albertel 1367: }
1368:
1369: sub start_solved {
1.159 albertel 1370: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1371: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1372: $target eq 'tex') {
1373: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1374: if ($gradestatus !~ /^correct/ ||
1375: !&Apache::response::show_answer()) {
1.159 albertel 1376: &Apache::lonxml::get_all_text("/solved",$parser);
1377: }
1.24 albertel 1378: }
1.159 albertel 1379: return '';
1.24 albertel 1380: }
1381:
1382: sub end_solved {
1.248 albertel 1383: return '';
1384: }
1385:
1386: sub start_problemtype {
1387: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1388: my $result;
1389: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1390: $target eq 'tex' || $target eq 'analyze') {
1391: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1392: if (!defined($mode)) { $mode='show'; }
1393: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1394: my $found=0;
1395: foreach my $type (split(',',$for)) {
1396: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1397: }
1398: if ($mode eq 'show' && !$found) {
1399: &Apache::lonxml::get_all_text("/problemtype",$parser);
1400: }
1401: if ($mode eq 'hide' && $found) {
1402: &Apache::lonxml::get_all_text("/problemtype",$parser);
1403: }
1404: } elsif ($target eq 'edit') {
1405: $result .=&Apache::edit::tag_start($target,$token);
1406: $result.=&Apache::edit::select_arg('Mode:','mode',
1407: [['show','Show'],
1408: ['hide','Hide']]
1409: ,$token);
1410: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1411: [ ['exam','Exam/Quiz Problem'],
1412: ['survey','Survey'],
1413: ['problem','Homework Problem'] ]
1414: ,$token);
1415: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1416: } elsif ($target eq 'modified') {
1417: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1418: $safeeval,'mode','for');
1419: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1420: }
1421: return $result;
1422: }
1423:
1424: sub end_problemtype {
1.159 albertel 1425: return '';
1.24 albertel 1426: }
1.34 albertel 1427:
1428: sub start_startouttext {
1.159 albertel 1429: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1430: my @result=(''.'');
1431: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1432: return (@result);
1.34 albertel 1433: }
1.159 albertel 1434:
1.34 albertel 1435: sub end_startouttext {
1.159 albertel 1436: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1437: my $result='';
1438: my $text='';
1439:
1440: if ($target eq 'edit') {
1441: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1.211 albertel 1442: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1443: <td>".&mt('Delete:').
1.159 albertel 1444: &Apache::edit::deletelist($target,$token)
1445: ."</td>
1.42 albertel 1446: <td>".
1.159 albertel 1447: &Apache::edit::insertlist($target,$token).
1448: &Apache::edit::end_row().
1449: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1450: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1451: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1452: }
1453: if ($target eq 'modified') {
1.219 albertel 1454: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1455: }
1456: if ($target eq 'tex') {
1457: $result .= '\noindent ';
1458: }
1459: return $result;
1.34 albertel 1460: }
1.159 albertel 1461:
1.34 albertel 1462: sub start_endouttext {
1.159 albertel 1463: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1464: my $result='';
1465: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1466: if ($target eq "modified") {
1467: $result='<endouttext />'.
1468: &Apache::edit::handle_insertafter('startouttext'); }
1469: return $result;
1.34 albertel 1470: }
1.159 albertel 1471:
1.34 albertel 1472: sub end_endouttext {
1.159 albertel 1473: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1474: my @result=('','');
1475: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1476: return (@result);
1.34 albertel 1477: }
1.159 albertel 1478:
1.45 albertel 1479: sub delete_startouttext {
1.159 albertel 1480: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1481: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1482: my $text=$$parser['-1']->get_text("/endouttext");
1483: my $ntoken=$$parser['-1']->get_token();
1484: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1485: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1486: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1487: # they did the last time round
1488: &Apache::lonxml::increasedepth($ntoken);
1489: &Apache::lonxml::decreasedepth($ntoken);
1490: return 1;
1.193 www 1491: }
1492:
1493: sub start_simpleeditbutton {
1494: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1495: my $result='';
1.284 albertel 1496: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1497: ($target eq 'web') &&
1.284 albertel 1498: (&Apache::lonnet::allowed('srm',$env{'request.course.id'}))) {
1499: my $url=$env{'request.noversionuri'};
1.193 www 1500: $url=~s/\?.*$//;
1.278 albertel 1501: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1502: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1503: '<a href="'.$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 1504: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1505: }
1506: return $result;
1507: }
1508:
1509: sub end_simpleeditbutton {
1510: return '';
1.45 albertel 1511: }
1.34 albertel 1512:
1.1 albertel 1513: 1;
1514: __END__
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