Annotation of loncom/homework/structuretags.pm, revision 1.328
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.328 ! albertel 4: # $Id: structuretags.pm,v 1.327 2005/12/15 23:20:55 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 {
1.326 albertel 45: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
46: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
1.200 albertel 47: if ($target eq 'web') {
48: return $bodytext;
1.159 albertel 49: }
50: return '';
1.10 albertel 51: }
52:
53: sub end_web {
1.44 ng 54: return '';
1.10 albertel 55: }
56:
57: sub start_tex {
1.326 albertel 58: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 59: my $result='';
1.326 albertel 60: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
1.200 albertel 61: if ($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();
1.327 albertel 116: if ($target eq 'edit') {
117: $head_tag_start.=&Apache::edit::js_change_detection();
118: }
1.159 albertel 119: }
120: my $body_tag_start;
1.318 albertel 121: if (!defined($found{'body'}) && $env{'request.state'} eq 'construct') {
122: if ($env{'environment.remote'} eq 'off') {
123: if ($target eq 'web' || $target eq 'edit') {
124: $body_tag_start=&Apache::loncommon::bodytag();
125: $body_tag_start.=&Apache::lonxml::message_location();
126: }
127: } else {
128: if ($target eq 'web' || $target eq 'edit') {
129: $body_tag_start=&Apache::loncommon::bodytag(undef,undef,undef,1);
130: $body_tag_start.=&Apache::lonxml::message_location();
131: }
1.297 albertel 132: }
1.272 albertel 133: } elsif (!defined($found{'body'})) {
1.159 albertel 134: my $background=&Apache::lonxml::get_param('background',$parstack,
135: $safeeval);
1.290 albertel 136: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
137: $safeeval);
1.299 albertel 138: $body_tag_start=&body_tag_start($target,$background,$bgcolor);
1.291 albertel 139: if ( ($target eq 'web' || $target eq 'webgrade')
140: && $env{'request.state'} ne 'construct') {
1.165 albertel 141: my ($symb,undef,undef,undef,$publicuser)=
142: &Apache::lonxml::whichuser();
143: if ($symb eq '' && !$publicuser) {
1.159 albertel 144: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
1.211 albertel 145: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
1.159 albertel 146: $body_tag_start.=$help;
147: }
148: }
1.245 albertel 149: $body_tag_start.=&Apache::lonxml::message_location();
1.159 albertel 150: }
151: my $form_tag_start;
152: if (!defined($found{'form'})) {
1.281 albertel 153: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="POST" action="';
1.284 albertel 154: my $uri=$env{'request.uri'};
155: if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
1.327 albertel 156: $form_tag_start.=$uri.'" ';
157: if ($target eq 'edit') {
158: $form_tag_start.=&Apache::edit::form_change_detection();
159: }
160: $form_tag_start.='>';
1.159 albertel 161: }
162: return ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.105 albertel 163: }
164:
1.141 matthew 165: #use Time::HiRes();
1.105 albertel 166: sub get_resource_name {
1.159 albertel 167: my ($parstack,$safeeval)=@_;
1.204 albertel 168: if (defined($Apache::lonhomework::name)) {
169: return $Apache::lonhomework::name;
170: }
1.279 albertel 171: my ($symb)=&Apache::lonxml::whichuser();
172: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 173: if ($name eq '') {
174: $name=&Apache::lonnet::EXT('resource.title');
175: if ($name eq 'con_lost') { $name = ''; }
176: }
1.204 albertel 177: if ($name!~/\S+/) {
1.284 albertel 178: $name=$env{'request.uri'};
1.205 albertel 179: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 180: }
1.159 albertel 181: $Apache::lonhomework::name=$name;
182: return $name;
1.105 albertel 183: }
184:
185: sub setup_rndseed {
1.159 albertel 186: my ($safeeval)=@_;
187: my $rndseed;
1.162 albertel 188: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 189: if ($env{'request.state'} eq "construct" || $symb eq '' ||
1.247 albertel 190: $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 191: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 192: ['rndseed']);
1.284 albertel 193: $rndseed=$env{'form.rndseed'};
1.159 albertel 194: if (!$rndseed) {
1.162 albertel 195: $rndseed=$Apache::lonhomework::history{'rndseed'};
196: if (!$rndseed) {
197: $rndseed=time;
198: }
1.284 albertel 199: $env{'form.rndseed'}=$rndseed;
1.162 albertel 200: }
1.284 albertel 201: if ($env{'form.resetdata'} eq &mt('New Problem Variation') ||
202: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 203: srand(time);
204: $rndseed=int(rand(2100000000));
1.284 albertel 205: $env{'form.rndseed'}=$rndseed;
206: delete($env{'form.resetdata'});
207: delete($env{'form.newrandomization'});
1.159 albertel 208: }
1.187 albertel 209: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 210: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 211: }
1.247 albertel 212: if ($Apache::lonhomework::history{'resource.CODE'}) {
213: $rndseed=&Apache::lonnet::rndseed();
214: }
1.221 albertel 215: if ($safeeval) {
216: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 217: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 218: }
1.159 albertel 219: }
220: return $rndseed;
1.105 albertel 221: }
222:
1.268 albertel 223: sub remember_problem_state {
224: return '
1.284 albertel 225: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
226: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
227: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 228: }
229:
1.105 albertel 230: sub problem_edit_header {
1.268 albertel 231: return '<input type="hidden" name="submitted" value="edit" />'.
232: &Apache::structuretags::remember_problem_state().'
1.210 albertel 233: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 234: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
1.328 ! albertel 235: <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 236: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
237: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
238: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.260 albertel 239: &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
240: .'</td></tr></table>'.
1.282 albertel 241: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 242: }
243:
244: sub problem_edit_footer {
1.210 albertel 245: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 246: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
247: &Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).
1.280 albertel 248: "\n</form>\n".&Apache::loncommon::endbodytag()."\n</html>";
1.105 albertel 249: }
250:
1.235 albertel 251: sub option {
252: my ($value,$name) = @_;
253: my $result ="<option value='".$value."' ";
1.284 albertel 254: if ($env{'form.'.$name} eq $value) {
1.235 albertel 255: $result.=" selected='on' ";
256: }
257: $result.='>';
258: return $result;
259: }
260:
1.105 albertel 261: sub problem_web_to_edit_header {
1.159 albertel 262: my ($rndseed)=@_;
1.313 albertel 263: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
264: if (!$Apache::lonhomework::parsing_a_task) {
265: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
266: }
267: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 268: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
269: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 270: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 271: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 272: $rndseed.'"
1.270 albertel 273: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 274: <label><input type="checkbox" name="showallfoils" ';
1.315 albertel 275: my $show_all_foils_text =
276: ($Apache::lonhomework::parsing_a_task) ?
277: &mt(' Show All Instances')
278: : &mt(' Show All Foils');
279:
1.284 albertel 280: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.315 albertel 281: $result.= ' />'.$show_all_foils_text.
1.228 www 282: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.281 albertel 283: '</label><hr />';
1.313 albertel 284: if (!$Apache::lonhomework::parsing_a_task) {
285: $result.="
1.235 albertel 286: <nobr>
287: Problem Status:
288: <select name='problemstate'>
1.270 albertel 289: <option value=''></option>
1.235 albertel 290: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
291: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
292: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
293: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
294: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
295: </select>
296: </nobr>
297: <nobr>
298: Problem Type:
299: <select name='problemtype'>
1.270 albertel 300: <option value=''></option>
1.242 albertel 301: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
302: ".&option('problem','problemtype').&mt("Homework problem")."</option>
303: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 304: </select>
305: </nobr>
306: <nobr>
307: Feedback Mode:
308: <select name='problemstatus'>
309: <option value=''></option>
1.242 albertel 310: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
311: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 312: </select>
313: </nobr>
1.242 albertel 314: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 315: <hr />";
1.313 albertel 316: my $numtoanalyze=$env{'form.numtoanalyze'};
317: if (!$numtoanalyze) { $numtoanalyze=20; }
318: $result.= '<input type="submit" name="problemmode" value='.
319: &mt('"Calculate answers').'" /> for
1.136 albertel 320: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 321: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
322: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 323: '',undef,undef,300).
1.210 albertel 324: '<hr />';
1.313 albertel 325: }
1.159 albertel 326: return $result;
1.48 albertel 327: }
328:
1.65 albertel 329: sub initialize_storage {
1.159 albertel 330: %Apache::lonhomework::results=();
1.162 albertel 331: %Apache::lonhomework::history=();
1.159 albertel 332: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.284 albertel 333: if ($env{'request.state'} eq 'construct' || $symb eq '') {
1.159 albertel 334: %Apache::lonhomework::history=
1.284 albertel 335: &Apache::lonnet::tmprestore($env{'request.uri'},'',$domain,$name);
1.159 albertel 336: my ($temp)=keys %Apache::lonhomework::history ;
337: &Apache::lonxml::debug("Return message of $temp");
338: } else {
339: %Apache::lonhomework::history=
340: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
341: }
342: #ignore error conditions
1.67 albertel 343: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 344: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 345: }
346:
347: # -------------------------------------------------------------finalize_storage
348: # Stores away the result has to a student's environment
349: # checks form.grade_ for specific values, other wises stores
350: # to the running users environment
1.285 raeburn 351: # Will increment totals for attempts, students, and corrects
352: # if running user has student role.
1.65 albertel 353: sub finalize_storage {
1.159 albertel 354: my $result;
1.289 albertel 355: if (%Apache::lonhomework::results) {
1.323 albertel 356: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
357: delete(@Apache::lonhomework::results{@remove});
1.159 albertel 358: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.284 albertel 359: if ($env{'request.state'} eq 'construct' || $symb eq '') {
360: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 361: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.284 albertel 362: $env{'request.uri'},'',$domain,$name);
1.159 albertel 363: &Apache::lonxml::debug('Construct Store return message:'.$result);
364: } else {
365: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
366: $symb,$courseid,$domain,$name);
367: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 368: if ($env{'request.role'} =~/^st/) {
369: &store_aggregates($symb,$courseid);
370: }
1.159 albertel 371: }
1.323 albertel 372: } else {
373: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 374: }
1.159 albertel 375: return $result;
1.65 albertel 376: }
1.289 albertel 377: use Data::Dumper;
1.65 albertel 378:
1.285 raeburn 379: # -------------------------------------------------------------store_aggregates
380: # Sends hash of values to be incremented in nohist_resourcetracker.db
381: # for the course. Increments total number of attempts, unique students
382: # and corrects for each part for an instance of a problem, as appropriate.
383: sub store_aggregates {
384: my ($symb,$courseid) = @_;
1.286 albertel 385: my %aggregate;
386: my @parts;
1.288 albertel 387: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
388: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 389: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 390: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 391: push(@parts, $1);
1.285 raeburn 392: }
393: }
1.286 albertel 394: foreach my $part (@parts) {
395: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
396: eq 'APPROX_ANS' ||
397: $Apache::lonhomework::results{'resource.'.$part.'.award'}
398: eq 'EXACT_ANS') {
1.287 albertel 399: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 400: }
1.286 albertel 401: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 402: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 403: } else {
1.293 albertel 404: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 405: if ($last_reset) {
1.293 albertel 406: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 407: $aggregate{$symb."\0".$part."\0users"} = 1;
408: }
409: }
1.285 raeburn 410: }
1.287 albertel 411: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 412: }
1.292 raeburn 413: if (keys (%aggregate) > 0) {
1.289 albertel 414: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 415: $cdomain,$cname);
416: }
417: }
1.289 albertel 418:
1.65 albertel 419: sub checkout_msg {
1.211 albertel 420: my %lt=&Apache::lonlocal::texthash(
421: 'resource'=>'The resource needs to be checked out',
422: '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.',
423: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
424: 'checkout'=>'Check out Exam for Viewing',
425: 'checkout?'=>'Check out Exam?');
1.159 albertel 426: return (<<ENDCHECKOUT);
1.211 albertel 427: <h2>$lt{'resource'}</h2>
428: <p>$lt{'id_expln'}</p>
429: <font color="red">
430: <p>$lt{'warning'}</p>
1.91 albertel 431: </font>
1.284 albertel 432: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.91 albertel 433: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 434: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 435: </form>
436: ENDCHECKOUT
437: }
438:
1.252 albertel 439: sub firstaccess_msg {
1.253 albertel 440: my ($time,$symb)=@_;
441: my ($map)=&Apache::lonnet::decode_symb($symb);
442: my $foldertitle=&Apache::lonnet::gettitle($map);
443: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.252 albertel 444: return (<<ENDCHECKOUT);
1.253 albertel 445: <h2>The resources in "$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 446: <form name="markaccess" method="POST" action="$env{'request.uri'}">
1.252 albertel 447: <input type="hidden" name="markaccess" value="yes" />
448: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
449: </form>
450: ENDCHECKOUT
451: }
452:
1.204 albertel 453: sub init_problem_globals {
454: my ($type)=@_;
455: #initialize globals
1.308 foxr 456: # For problems, we start out in part 0 (outside a <part> tag).
457: # and part 0 is used to describe the main body of the <problem>
458: #
1.204 albertel 459: if ($type eq 'problem') {
460: $Apache::inputtags::part='0';
461: @Apache::inputtags::partlist=('0');
1.266 albertel 462: $Apache::lonhomework::problemstatus=&get_problem_status('0');
463: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 464:
1.266 albertel 465: } elsif ($type eq 'library') {
1.204 albertel 466: $Apache::inputtags::part='';
467: @Apache::inputtags::partlist=();
468: $Apache::lonhomework::problemstatus='';
1.266 albertel 469: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 470:
1.304 albertel 471: } elsif ($type eq 'Task') {
472: $Apache::inputtags::part='0';
473: @Apache::inputtags::partlist=('0');
474: $Apache::lonhomework::problemstatus='';
475: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 476: }
477: @Apache::inputtags::responselist = ();
478: @Apache::inputtags::importlist = ();
479: @Apache::inputtags::previous=();
480: @Apache::inputtags::previous_version=();
481: $Apache::structuretags::printanswer='No';
482: @Apache::structuretags::whileconds=();
483: @Apache::structuretags::whilebody=();
484: @Apache::structuretags::whileline=();
485: $Apache::lonhomework::scantronmode=0;
486: undef($Apache::lonhomework::name);
487:
488: }
489:
490: sub reset_problem_globals {
491: my ($type)=@_;
492: undef(%Apache::lonhomework::history);
493: undef(%Apache::lonhomework::results);
494: undef($Apache::inputtags::part);
1.208 albertel 495: #don't undef this, lonhomework.pm takes care of this, we use this to
496: #detect if we try to do 2 problems in one file
497: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 498: undef($Apache::lonhomework::name);
499: }
500:
1.241 albertel 501: sub set_problem_state {
1.240 albertel 502: my ($part)=@_;
1.284 albertel 503: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 504: $Apache::lonhomework::history{"resource.$part.solved"}=
505: 'correct_by_student';
506: }
507: }
508:
1.241 albertel 509: sub get_problem_status {
510: my ($part)=@_;
1.267 albertel 511: my $problem_status;
1.284 albertel 512: if ($env{'request.state'} eq 'construct' &&
513: defined($env{'form.problemstatus'})) {
514: $problem_status=$env{'form.problemstatus'};
1.267 albertel 515: } else {
516: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
517: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 518: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 519: }
520: return $problem_status;
521: }
522:
1.9 albertel 523: sub start_problem {
1.326 albertel 524: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 525:
1.311 foxr 526: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 527: if (!$Apache::lonxml::metamode) {
528: &Apache::lonxml::startredirection();
529: }
1.311 foxr 530:
1.308 foxr 531: # Problems don't nest and we don't allow more than one <problem> in
532: # a .problem file.
533: #
1.184 albertel 534: if ( $Apache::inputtags::part ne '' ||
535: $Apache::lonhomework::parsing_a_problem) {
536: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 537: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 538: return '';
539: }
1.184 albertel 540:
541: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 542: &init_problem_globals('problem');
1.166 albertel 543:
1.284 albertel 544: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 545: $Apache::lonhomework::scantronmode=1;
546: }
1.161 albertel 547:
1.246 albertel 548: &initialize_storage();
1.159 albertel 549: if ($target ne 'analyze') {
550: if ($target eq 'web') {
551: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 552: }
1.284 albertel 553: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 554: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 555: if (($env{'request.state'} eq 'construct') &&
556: defined($env{'form.problemtype'})) {
557: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 558: }
1.240 albertel 559: &Apache::lonxml::debug("Found this to be of type :$Apache::ltonhomework::type:");
1.159 albertel 560: }
1.164 albertel 561: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 562: my $uri=$env{'request.uri'};
1.159 albertel 563: if ($uri=~/\.(\w+)$/) {
564: $Apache::lonhomework::type=$1;
565: &Apache::lonxml::debug("Using type of $1");
566: } else {
567: $Apache::lonhomework::type='problem';
568: &Apache::lonxml::debug("Using default type, problem, :$uri:");
569: }
1.87 albertel 570: }
1.301 albertel 571: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 572:
1.159 albertel 573: #added vars to the scripting enviroment
1.213 albertel 574: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 575: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 576: &Apache::run::run($expression,$safeeval);
1.159 albertel 577: my $status;
578: my $accessmsg;
579:
580: #should get back a <html> or the neccesary stuff to start XML/MathML
581: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
582: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.284 albertel 583: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 584:
585: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
586: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
587: $target eq 'tex') {
588: #handle exam checkout
589: if ($Apache::lonhomework::type eq 'exam') {
590: my $token=
591: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 592: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 593: $token=&Apache::lonxml::maketoken();
594: $Apache::lonhomework::history{"resource.0.outtoken"}=
595: $token;
596: }
597: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 598: }
1.284 albertel 599: if ($env{'form.markaccess'}) {
1.252 albertel 600: &Apache::lonnet::set_first_access('map');
601: }
1.159 albertel 602: #handle rand seed in construction space
603: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 604: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 605: if ($env{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 606: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
607: $rndseed.'" />'.
608: '<input type="submit" name="resetdata"
1.211 albertel 609: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 610: '<input type="hidden" name="username"
1.284 albertel 611: value="'.$env{'form.username'}.'" />';
612: if ($env{'user.adv'}) {
1.267 albertel 613: $form_tag_start.=
1.300 albertel 614: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 615: if (defined($env{'form.showallfoils'})) {
1.267 albertel 616: $form_tag_start.='checked="on"';
617: }
1.300 albertel 618: $form_tag_start.= ' />'.&mt(' Show All Foils').
619: '</label>';
1.267 albertel 620: }
621: $form_tag_start.='<hr />';
1.162 albertel 622: }
1.324 albertel 623:
624: ($status,$accessmsg,my $slot_name,my $slot) =
625: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 626: push (@Apache::inputtags::status,$status);
1.324 albertel 627:
1.159 albertel 628: my $expression='$external::datestatus="'.$status.'";';
629: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
630: &Apache::run::run($expression,$safeeval);
631: &Apache::lonxml::debug("Got $status");
1.324 albertel 632:
1.159 albertel 633: if (( $status eq 'CLOSED' ) ||
634: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 635: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 636: ( $status eq 'BANNED') ||
1.216 albertel 637: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 638: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 639: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 640: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
641: $style);
1.159 albertel 642: if ( $target eq "web" ) {
643: $result.= $head_tag_start.'</head>';
644: my $msg=$body_tag_start;
645: if ($status eq 'UNAVAILABLE') {
1.245 albertel 646: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 647: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 648: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 649: }
1.216 albertel 650: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 651: $msg.='The problem '.$accessmsg;
652: } elsif ($status eq 'UNCHECKEDOUT') {
653: $msg.=&checkout_msg;
1.252 albertel 654: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 655: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 656: } elsif ($status eq 'NOT_IN_A_SLOT') {
657: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 658: }
659: $result.=$msg.'<br />';
660: } elsif ($target eq 'tex') {
661: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
662: if ($status eq 'UNAVAILABLE') {
1.211 albertel 663: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 664: } else {
1.211 albertel 665: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 666: }
667: }
1.324 albertel 668: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 669: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
670: $style);
1.324 albertel 671: if ($target eq 'web') {
672: $result .= $head_tag_start.'</head>';
673: $result .= $body_tag_start;
674: $result .= &Apache::bridgetask::proctor_validation_screen();
675: } elsif ($target eq 'grade') {
676: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
677: 'problem');
678: }
1.159 albertel 679: } elsif ($target eq 'web') {
680: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 681: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 682: $body_tag_start \n $form_tag_start".
1.227 albertel 683: '<input type="hidden" name="submitted" value="yes" />';
684: # create a page header and exit
1.284 albertel 685: if ($env{'request.state'} eq "construct") {
686: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 687: }
688: # if we are viewing someone else preserve that info
1.284 albertel 689: if (defined $env{'form.grade_symb'}) {
1.227 albertel 690: foreach my $field ('symb','courseid','domain','username') {
691: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 692: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 693: }
694: }
695: } elsif ($target eq 'tex') {
1.319 foxr 696: $result .= 'INSERTTEXFRONTMATTERHERE';
697:
1.99 sakharuk 698: }
1.159 albertel 699: } elsif ($target eq 'edit') {
700: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
701: &problem_edit_header();
1.226 albertel 702: $Apache::lonxml::warnings_error_header=
703: &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 704: my $temp=&Apache::edit::insertlist($target,$token);
705: $result.=$temp;
706: } elsif ($target eq 'modified') {
707: $result=$token->[4];
708: $result.=&Apache::edit::handle_insert();
709: } else {
710: # page_start returned a starting result, delete it if we don't need it
711: $result = '';
1.99 sakharuk 712: }
1.159 albertel 713: return $result;
1.9 albertel 714: }
715:
716: sub end_problem {
1.159 albertel 717: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 718: my $result;
1.310 foxr 719:
1.321 albertel 720: if (!$Apache::lonxml::metamode) {
721: $result = &Apache::lonxml::endredirection(); #started in &start_problem
722: }
1.319 foxr 723:
724: if ($target eq 'tex') {
1.321 albertel 725:
726: # Figure out the front matter and replace the
727: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
728: # this in end_problem because whether or not we display due
729: # dates depends on whether due dates have already been
730: # displayed in the problem parts.
731:
1.319 foxr 732: my $frontmatter = '';
733: my $startminipage = '';
734: if (not $env{'form.problem_split'}=~/yes/) {
735: $startminipage = '\begin{minipage}{\textwidth}';
736: }
737: my $id = $Apache::inputtags::part;
738: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
739: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
740: my @packages = split /,/,$packages;
741: my $allow_print_points = 0;
742: foreach my $partial_key (@packages) {
743: if ($partial_key=~m/^part_0$/) {
744: $allow_print_points=1;
745: }
746: }
747: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
748: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
749: if (lc($env{'course.'.$env{'request.course.id'}.
750: '.disableexampointprint'}) eq 'yes') {
751: $allow_print_points=0;
752: }
753: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
754: 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 ';
755: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
756: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
757:
758: # Figure out what the due date is and if we need to print
759: # it in the problem header. We have been logging the
760: # last due date written to file.
761:
762: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
763: my $duedate = POSIX::strftime("%c",localtime($duetime));
764: my $temp_file;
765: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
766:
767: # Figure out what the last printed due date is or set it
768: # to the epoch if no duedates have been printed.
769:
770: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
771: if (-e $filename) {
772: $temp_file = Apache::File->new($filename);
773: my @due_file = <$temp_file>;
774: $due_file_content = $due_file[$#due_file];
775: chomp $due_file_content;
776: }
777:
778: # We display the due date iff it is not the same as the last
779: # duedate in problem header ($due_file_content), and
780: # none of our parts displayed a duedate.
781: #
782: my $parts_with_displayduedate;
783: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
784: $parts_with_displayduedate =
785: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
786: } else {
787: $parts_with_displayduedate = 0;
788: }
789: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
790: $temp_file = Apache::File->new('>'.$filename);
791: print $temp_file "$duetime\n";
792: if (not $env{'request.symb'} =~ m/\.page_/) {
793: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
794: $frontmatter .= $begin_doc.
795: '\textit{Due date: '.$duedate.'} '.$toc_line;
796: } else {
797: $frontmatter.= $begin_doc.$toc_line;
798: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
799: }
800: } else {
801: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
802: }
803: } else {
804: if (not $env{'request.symb'} =~ m/\.page_/) {
805: $frontmatter .= $begin_doc.$toc_line;
806: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
807: } else {
808: $frontmatter .= '\vskip 1mm \\\\\\\\';
809: }
810: }
811: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
812: }
813:
1.159 albertel 814: my $status=$Apache::inputtags::status['-1'];
815: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
816: $target eq 'tex') {
1.249 albertel 817: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 818: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 819: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
820: &Apache::inputtags::grade;
1.324 albertel 821: } elsif ($status eq 'NEEDS_CHECKIN') {
822: # no need to grade, and don't want to hide data
1.249 albertel 823: } else {
824: # move any submission data to .hidden
825: &Apache::inputtags::hidealldata($Apache::inputtags::part);
826: }
1.159 albertel 827: } elsif ( ($target eq 'web' || $target eq 'tex') &&
828: $Apache::inputtags::part eq '0' &&
1.252 albertel 829: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 830: # if part is zero, no <part>s existed, so we need show the current
831: # grading status
832: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
833: $result.= $gradestatus;
834: }
835: if (
1.284 albertel 836: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 837: ($target eq 'answer') || ($target eq 'tex')
838: ) {
1.227 albertel 839: if ($target ne 'tex' &&
1.284 albertel 840: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 841: $result.="</form>";
842: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
1.159 albertel 843: }
844: if ($target eq 'web') {
1.281 albertel 845: $result.=&Apache::lonxml::xmlend().'</html>';
1.159 albertel 846: } elsif ($target eq 'tex') {
1.178 sakharuk 847: my $endminipage = '';
1.284 albertel 848: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 849: $endminipage = '\end{minipage}';
850: }
1.284 albertel 851: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 852: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 853: $result=~s/<\/html>//;
1.159 albertel 854: } else {
1.262 sakharuk 855: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 856: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 857: $result .= $endminipage.'\end{document} ';
858: } else {
859: $result .= '';
860: }
1.159 albertel 861: }
862: }
863: }
864: if ($target eq 'grade') {
865: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
866: &finalize_storage();
867: }
1.284 albertel 868: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
869: && $env{'form.answer_output_mode'} ne 'tex') {
1.294 albertel 870: $result.=&Apache::lonxml::xmlend().'</html>';
871: # normally we get it from above, but in CSTR
1.172 albertel 872: # we always show answer mode too.
1.159 albertel 873: }
874: } elsif ($target eq 'meta') {
875: if ($Apache::inputtags::part eq '0') {
1.179 albertel 876: @Apache::inputtags::response=();
1.159 albertel 877: $result=&Apache::response::mandatory_part_meta;
878: }
1.215 albertel 879: $result.=&Apache::response::meta_part_order();
1.258 albertel 880: $result.=&Apache::response::meta_response_order();
1.159 albertel 881: } elsif ($target eq 'edit') {
882: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 883: $result .= &problem_edit_footer();
1.320 albertel 884: } elsif ($target eq 'modified') {
885: $result .= $token->[2];
886: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 887: }
1.155 albertel 888:
1.284 albertel 889: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 890: &Apache::inputtags::check_for_duplicate_ids();
891: }
1.204 albertel 892:
893: &reset_problem_globals('problem');
1.159 albertel 894:
895: return $result;
1.48 albertel 896: }
897:
1.108 albertel 898:
1.48 albertel 899: sub start_library {
1.159 albertel 900: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
901: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 902: if ($$tagstack[0] eq 'library') {
903: &init_problem_globals('library');
904: $Apache::lonhomework::type='problem';
905: }
1.159 albertel 906: if ($target eq 'edit') {
907: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
908: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
909: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
910: &problem_edit_header();
911: my $temp=&Apache::edit::insertlist($target,$token);
912: $result.=$temp;
913: } elsif ($target eq 'modified') {
914: $result=$token->[4];
915: $result.=&Apache::edit::handle_insert();
916: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 917: $env{'request.state'} eq "construct" ) {
1.159 albertel 918: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
919: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
920: my $name=&get_resource_name($parstack,$safeeval);
921: my $rndseed=&setup_rndseed($safeeval);
922: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 923: $body_tag_start \n $form_tag_start".
1.159 albertel 924: '<input type="hidden" name="submitted" value="yes" />';
925: $result.=&problem_web_to_edit_header($rndseed);
926: }
927: return $result;
1.48 albertel 928: }
929:
930: sub end_library {
1.159 albertel 931: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
932: my $result='';
933: if ($target eq 'edit') {
934: $result=&problem_edit_footer();
935: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 936: $env{'request.state'} eq "construct") {
1.280 albertel 937: $result.='</form>'.&Apache::loncommon::endbodytag().
938: &Apache::lonxml::xmlend();
1.159 albertel 939: }
1.204 albertel 940: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 941: return $result;
1.197 www 942: }
943:
944: sub start_definetag {
1.326 albertel 945: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 946:
947: my $result;
948:
949: my $name = $token->[2]->{'name'};
1.326 albertel 950: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 951: if ($name=~/^\//) {
952: $result=
953: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
954: } else {
955: $result=
956: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
957: }
958: $skip=~s/\</\<\;/gs;
959: $skip=~s/\>/\>\;/gs;
960: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
961: return $result;
962: }
963:
964: sub end_definetag {
965: return '';
1.1 albertel 966: }
967:
968: sub start_block {
1.201 albertel 969: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 970:
971: my $result;
1.1 albertel 972:
1.160 albertel 973: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 974: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 975: my $code = $token->[2]->{'condition'};
1.201 albertel 976: if (defined($code)) {
1.137 albertel 977: if (!$Apache::lonxml::default_homework_loaded) {
978: &Apache::lonxml::default_homework_load($safeeval);
979: }
1.131 albertel 980: $result = &Apache::run::run($code,$safeeval);
981: &Apache::lonxml::debug("block :$code: returned :$result:");
982: } else {
983: $result='1';
984: }
985: if ( ! $result ) {
1.201 albertel 986: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 987: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
988: }
989: $result='';
990: } elsif ($target eq 'edit') {
991: $result .=&Apache::edit::tag_start($target,$token);
992: $result .=&Apache::edit::text_arg('Test Condition:','condition',
993: $token,40);
994: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
995: } elsif ($target eq 'modified') {
996: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
997: $safeeval,'condition');
998: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 999: }
1.131 albertel 1000: return $result;
1.1 albertel 1001: }
1002:
1003: sub end_block {
1.167 www 1004: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1005: my $result;
1006: if ($target eq "edit") {
1007: $result.= &Apache::edit::tag_end($target,$token,'');
1008: }
1009: return $result;
1010: }
1011:
1012: sub start_languageblock {
1.201 albertel 1013: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1014:
1015: my $result;
1016:
1017: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1018: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 1019: my $include = $token->[2]->{'include'};
1020: my $exclude = $token->[2]->{'exclude'};
1021: my %languages=&Apache::loncommon::display_languages();
1022: $result='1';
1023: if ($include) {
1024: $result='';
1025: foreach (split(/\,/,$include)) {
1026: if ($languages{$_}) { $result='1'; }
1027: }
1028: }
1029: if ($exclude) {
1030: foreach (split(/\,/,$exclude)) {
1031: if ($languages{$_}) { $result='0'; }
1032: }
1033: }
1034: if ( ! $result ) {
1035: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1036: $style);
1037: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1038: }
1039: $result='';
1.167 www 1040: } elsif ($target eq 'edit') {
1041: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1042: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1043: $token,40);
1.211 albertel 1044: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1045: $token,40);
1046: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1047: } elsif ($target eq 'modified') {
1048: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1049: $safeeval,'include',
1050: 'exclude');
1.167 www 1051: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1052: }
1053: return $result;
1054: }
1055:
1056: sub end_languageblock {
1.170 www 1057: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1058: my $result;
1.201 albertel 1059: if ($target eq "edit") {
1.170 www 1060: $result.= &Apache::edit::tag_end($target,$token,'');
1061: }
1062: return $result;
1063: }
1064:
1065: sub start_instructorcomment {
1.201 albertel 1066: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1067:
1068: my $result;
1069:
1070: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1071: $target eq 'tex' || $target eq 'analyze') {
1.284 albertel 1072: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1073: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1074: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1075: $parser,$style);
1.170 www 1076: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1077: }
1078: $result='';
1079: } elsif ($target eq 'edit') {
1080: $result .=&Apache::edit::tag_start($target,$token);
1081: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1082: }
1083: return $result;
1084: }
1085:
1086: sub end_instructorcomment {
1.159 albertel 1087: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1088: my $result;
1089: if ($target eq "edit") {
1090: $result.= &Apache::edit::tag_end($target,$token,'');
1091: }
1092: return $result;
1.4 tsai 1093: }
1094:
1095: sub start_while {
1.326 albertel 1096: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1097:
1.160 albertel 1098: my $result;
1.161 albertel 1099: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 1100: $target eq 'tex' || $target eq 'analyze') {
1101: my $code = $token->[2]->{'condition'};
1.4 tsai 1102:
1.160 albertel 1103: push( @Apache::structuretags::whileconds, $code);
1104: if (!$Apache::lonxml::default_homework_loaded) {
1105: &Apache::lonxml::default_homework_load($safeeval);
1106: }
1107: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1108: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1109: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1110: push( @Apache::structuretags::whileline, $token->[5]);
1111: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1112: if ( $result ) {
1113: &Apache::lonxml::newparser($parser,\$bodytext);
1114: }
1115: } elsif ($target eq 'edit') {
1116: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1117: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1118: $token,40);
1119: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1120: } elsif ($target eq 'modified') {
1121: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1122: $safeeval,'condition');
1123: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1124: }
1.160 albertel 1125: return $result;
1.4 tsai 1126: }
1127:
1128: sub end_while {
1.159 albertel 1129: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1130: my $result;
1131:
1132: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1133: $target eq 'tex' || $target eq 'analyze') {
1134: my $code = pop(@Apache::structuretags::whileconds);
1135: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1136: my $line = pop(@Apache::structuretags::whileline);
1137: my $return = &Apache::run::run($code,$safeeval);
1138: my $starttime=time;
1139: my $error=0;
1140: while ($return) {
1141: if (time-$starttime >
1142: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1143: #$return = 0; $error=1; next;
1.161 albertel 1144: }
1145: $result.=&Apache::scripttag::xmlparse($bodytext);
1146: $return = &Apache::run::run($code,$safeeval);
1147: }
1148: if ($error) {
1.270 albertel 1149: &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 1150: }
1151: } elsif ($target eq "edit") {
1152: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1153: }
1.160 albertel 1154: return $result;
1.1 albertel 1155: }
1.6 tsai 1156:
1.160 albertel 1157: # <randomlist show="1">
1.6 tsai 1158: # <tag1>..</tag1>
1159: # <tag2>..</tag2>
1160: # <tag3>..</tag3>
1.160 albertel 1161: # ...
1.6 tsai 1162: # </randomlist>
1163: sub start_randomlist {
1.326 albertel 1164: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1165: my $result;
1166: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1167: $target eq 'tex' || $target eq 'analyze') {
1.326 albertel 1168: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser,$style);
1.305 albertel 1169: my $b_parser= HTML::LCParser->new(\$body);
1170: $b_parser->xml_mode(1);
1171: $b_parser->marked_sections(1);
1.159 albertel 1172: my $b_tok;
1173: my @randomlist;
1174: my $list_item;
1175: while($b_tok = $b_parser->get_token() ) {
1176: if($b_tok->[0] eq 'S') { # start tag
1177: # get content of the tag until matching end tag
1178: # get all text upto the matching tag
1179: # and push the content into @randomlist
1180: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1181: $b_parser);
1182: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1183: push(@randomlist,$list_item);
1184: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1185: # $list_item</b>";
1186: }
1187: if($b_tok->[0] eq 'T') { # text
1188: # what to do with text in between tags?
1189: # print "<b>TEXT $b_tok->[1]</b><br />";
1190: }
1191: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1192: # print "<b>END-TAG $b_tok->[1]</b><br />";
1193: # }
1194: }
1.303 albertel 1195: if (@randomlist) {
1196: my @idx_arr = (0 .. $#randomlist);
1197: &Apache::structuretags::shuffle(\@idx_arr);
1198: my $bodytext = '';
1199: my $show=$#randomlist;
1200: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1201: $showarg--;
1202: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1203: for(0 .. $show) {
1204: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1205: }
1206: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1207: }
1208: } elsif ($target eq 'edit' ) {
1209: $result .=&Apache::edit::tag_start($target,$token);
1210: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1211: $token,5);
1212: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1213: } elsif ($target eq 'modified' ) {
1214: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1215: $safeeval,'show');
1216: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1217: }
1218: return $result;
1.7 tsai 1219: }
1220:
1221: sub shuffle {
1222: my $a=shift;
1223: my $i;
1.303 albertel 1224: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1225: &Apache::response::pushrandomnumber();
1.159 albertel 1226: for($i=@$a;--$i;) {
1227: my $j=int(&Math::Random::random_uniform() * ($i+1));
1228: next if $i == $j;
1229: @$a[$i,$j] = @$a[$j,$i];
1230: }
1.251 albertel 1231: &Apache::response::poprandomnumber();
1.7 tsai 1232: }
1.6 tsai 1233: }
1234:
1235: sub end_randomlist {
1.159 albertel 1236: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1237: my $result;
1238: if ($target eq 'edit' ) {
1239: $result=&Apache::edit::tag_end($target,$token,
1240: 'End Randomly Parsed Block');
1241: }
1242: return $result;
1.6 tsai 1243: }
1244:
1.283 albertel 1245: sub ordered_show_check {
1246: my $last_part=$Apache::inputtags::partlist[-2];
1247: my $in_order=
1248: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1249: my $in_order_show=1;
1250: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1251: $in_order_show=&Apache::response::check_status($last_part);
1252: }
1253: return $in_order_show;
1254: }
1255:
1.11 albertel 1256: sub start_part {
1.326 albertel 1257: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1258: if (!$Apache::lonxml::metamode) {
1259: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1260: # duedates.
1261: }
1.159 albertel 1262: my $result='';
1263: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1264: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1265: $Apache::inputtags::part=$id;
1.177 albertel 1266: push(@Apache::inputtags::partlist,$id);
1267: @Apache::inputtags::response=();
1.159 albertel 1268: @Apache::inputtags::previous=();
1269: @Apache::inputtags::previous_version=();
1.241 albertel 1270: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1271: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1272: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1273: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1274: my $in_order_show=&ordered_show_check();
1.214 albertel 1275: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1276: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1277: &Apache::run::run($expression,$safeeval);
1.159 albertel 1278:
1279: if ($target eq 'meta') {
1.224 www 1280: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1281: return &Apache::response::mandatory_part_meta.
1282: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1283: } elsif ($target eq 'web' || $target eq 'grade' ||
1284: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1285: if ($hidden || !$in_order_show) {
1.326 albertel 1286: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1287: } else {
1288: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1289: push (@Apache::inputtags::status,$status);
1290: my $expression='$external::datestatus="'.$status.'";';
1291: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1292: &Apache::run::run($expression,$safeeval);
1.284 albertel 1293: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1294: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1295: }
1.216 albertel 1296: if (( $status eq 'CLOSED' ) ||
1297: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1298: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1299: ( $status eq 'BANNED') ||
1300: ( $status eq 'UNAVAILABLE') ||
1301: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1302: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1303: $style);
1.159 albertel 1304: if ( $target eq "web" ) {
1.211 albertel 1305: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1306: } elsif ( $target eq 'tex' ) {
1.284 albertel 1307: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1308: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1309: } else {
1.211 albertel 1310: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1311: }
1.159 albertel 1312: }
1313: } else {
1314: if ($target eq 'tex') {
1.284 albertel 1315: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1316: if ($$tagstack[-2] eq 'td') {
1317: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1318: } else {
1319: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1320: }
1.195 sakharuk 1321: }
1.159 albertel 1322: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1323: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1324: my @allkeys = split /,/,$allkeys;
1325: my $allow_print_points = 0;
1326: foreach my $partial_key (@allkeys) {
1.230 albertel 1327: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1328: if ($1 ne '0') {$allow_print_points=1;}
1329: }
1330: }
1.275 albertel 1331: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1332: if (defined($maxtries) && $maxtries < 0) {
1333: $allow_print_points=0;
1334: }
1.302 albertel 1335: if (lc($env{'course.'.$env{'request.course.id'}.
1336: '.disableexampointprint'}) eq 'yes') {
1337: $allow_print_points=0;
1338: }
1.222 sakharuk 1339: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1340: } elsif ($target eq 'web') {
1341: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1342: }
1343: }
1344: }
1345: } elsif ($target eq 'edit') {
1346: $result.=&Apache::edit::tag_start($target,$token);
1347: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1348: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1349: ' '.
1350: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1351: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1352: } elsif ($target eq 'modified') {
1353: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1354: $safeeval,'id','display');
1.159 albertel 1355: if ($constructtag) {
1.225 albertel 1356: #limiting ids to only letters numbers, and space
1.224 www 1357: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1358: $result = &Apache::edit::rebuild_tag($token);
1359: $result.=&Apache::edit::handle_insert();
1360: }
1361: }
1362: return $result;
1.11 albertel 1363: }
1364:
1365: sub end_part {
1.159 albertel 1366: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1367: &Apache::lonxml::debug("in end_part $target ");
1368: my $status=$Apache::inputtags::status['-1'];
1369: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1370: my $in_order_show=&ordered_show_check();
1.321 albertel 1371: my $result;
1372: if (!$Apache::lonxml::metamode) {
1373: $result = &Apache::lonxml::endredirection(); # started in &start_part
1374: }
1.312 albertel 1375: if ($target eq 'grade') {
1.249 albertel 1376: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1377: !$hidden && $in_order_show) {
1.311 foxr 1378: $result.=&Apache::inputtags::grade;
1.249 albertel 1379: } else {
1380: # move any submission data to .hidden
1381: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1382: }
1.283 albertel 1383: } elsif (($target eq 'web' || $target eq 'tex') &&
1384: !$hidden && $in_order_show) {
1.159 albertel 1385: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1386: $target);
1.212 albertel 1387: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1388: $gradestatus='';
1389: }
1.311 foxr 1390: $result.=$gradestatus;
1.265 sakharuk 1391: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1392: } elsif ($target eq 'edit') {
1.311 foxr 1393: $result.=&Apache::edit::end_table();
1.322 albertel 1394: } elsif ($target eq 'modified') {
1395: $result .= $token->[2];
1396: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 1397: }
1398: pop @Apache::inputtags::status;
1399: $Apache::inputtags::part='';
1.295 albertel 1400: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1401: return $result;
1.11 albertel 1402: }
1.1 albertel 1403:
1.25 albertel 1404: sub start_preduedate {
1.326 albertel 1405: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1406: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1.236 albertel 1407: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1408: if (!$Apache::lonhomework::scantronmode &&
1409: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1410: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1411: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1412: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1413: }
1.24 albertel 1414: }
1.159 albertel 1415: return '';
1.24 albertel 1416: }
1417:
1.25 albertel 1418: sub end_preduedate {
1.159 albertel 1419: return '';
1.24 albertel 1420: }
1421:
1.25 albertel 1422: sub start_postanswerdate {
1.326 albertel 1423: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.234 albertel 1424: if ($target eq 'web' || $target eq 'grade') {
1.300 albertel 1425: if ($Apache::lonhomework::scantronmode ||
1426: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.326 albertel 1427: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1428: }
1429: } elsif ($target eq 'tex') {
1.326 albertel 1430: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1431: }
1432: return '';
1.24 albertel 1433: }
1434:
1.25 albertel 1435: sub end_postanswerdate {
1.159 albertel 1436: return '';
1.24 albertel 1437: }
1438:
1.25 albertel 1439: sub start_notsolved {
1.326 albertel 1440: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1441: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1442: $target eq 'tex') {
1443: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1444: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1445: if ($gradestatus =~ /^correct/ &&
1446: &Apache::response::show_answer()) {
1.159 albertel 1447: &Apache::lonxml::debug("skipping");
1.326 albertel 1448: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1449: }
1.24 albertel 1450: }
1.159 albertel 1451: return '';
1.24 albertel 1452: }
1453:
1.25 albertel 1454: sub end_notsolved {
1.159 albertel 1455: return '';
1.24 albertel 1456: }
1457:
1458: sub start_solved {
1.326 albertel 1459: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1460: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1461: $target eq 'tex') {
1462: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1463: if ($gradestatus !~ /^correct/ ||
1464: !&Apache::response::show_answer()) {
1.326 albertel 1465: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1466: }
1.24 albertel 1467: }
1.159 albertel 1468: return '';
1.24 albertel 1469: }
1470:
1471: sub end_solved {
1.248 albertel 1472: return '';
1473: }
1474:
1475: sub start_problemtype {
1.326 albertel 1476: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1477: my $result;
1478: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1479: $target eq 'tex' || $target eq 'analyze') {
1480: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1481: if (!defined($mode)) { $mode='show'; }
1482: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1483: my $found=0;
1484: foreach my $type (split(',',$for)) {
1485: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1486: }
1487: if ($mode eq 'show' && !$found) {
1.326 albertel 1488: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1489: }
1490: if ($mode eq 'hide' && $found) {
1.326 albertel 1491: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1492: }
1493: } elsif ($target eq 'edit') {
1494: $result .=&Apache::edit::tag_start($target,$token);
1495: $result.=&Apache::edit::select_arg('Mode:','mode',
1496: [['show','Show'],
1497: ['hide','Hide']]
1498: ,$token);
1499: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1500: [ ['exam','Exam/Quiz Problem'],
1501: ['survey','Survey'],
1502: ['problem','Homework Problem'] ]
1503: ,$token);
1504: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1505: } elsif ($target eq 'modified') {
1506: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1507: $safeeval,'mode','for');
1508: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1509: }
1510: return $result;
1511: }
1512:
1513: sub end_problemtype {
1.159 albertel 1514: return '';
1.24 albertel 1515: }
1.34 albertel 1516:
1517: sub start_startouttext {
1.159 albertel 1518: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1519: my @result=(''.'');
1520: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1521: return (@result);
1.34 albertel 1522: }
1.159 albertel 1523:
1.34 albertel 1524: sub end_startouttext {
1.326 albertel 1525: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1526: my $result='';
1527: my $text='';
1528:
1529: if ($target eq 'edit') {
1.326 albertel 1530: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1531: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1532: <td>".&mt('Delete:').
1.159 albertel 1533: &Apache::edit::deletelist($target,$token)
1534: ."</td>
1.42 albertel 1535: <td>".
1.159 albertel 1536: &Apache::edit::insertlist($target,$token).
1537: &Apache::edit::end_row().
1538: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1539: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1540: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1541: }
1542: if ($target eq 'modified') {
1.219 albertel 1543: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1544: }
1545: if ($target eq 'tex') {
1546: $result .= '\noindent ';
1547: }
1548: return $result;
1.34 albertel 1549: }
1.159 albertel 1550:
1.34 albertel 1551: sub start_endouttext {
1.159 albertel 1552: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1553: my $result='';
1554: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1555: if ($target eq "modified") {
1556: $result='<endouttext />'.
1557: &Apache::edit::handle_insertafter('startouttext'); }
1558: return $result;
1.34 albertel 1559: }
1.159 albertel 1560:
1.34 albertel 1561: sub end_endouttext {
1.159 albertel 1562: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1563: my @result=('','');
1564: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1565: return (@result);
1.34 albertel 1566: }
1.159 albertel 1567:
1.45 albertel 1568: sub delete_startouttext {
1.326 albertel 1569: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1570: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1571: my $text=$$parser['-1']->get_text("/endouttext");
1572: my $ntoken=$$parser['-1']->get_token();
1573: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1574: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1575: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1576: # they did the last time round
1577: &Apache::lonxml::increasedepth($ntoken);
1578: &Apache::lonxml::decreasedepth($ntoken);
1579: return 1;
1.193 www 1580: }
1581:
1582: sub start_simpleeditbutton {
1583: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1584: my $result='';
1.284 albertel 1585: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1586: ($target eq 'web') &&
1.284 albertel 1587: (&Apache::lonnet::allowed('srm',$env{'request.course.id'}))) {
1588: my $url=$env{'request.noversionuri'};
1.193 www 1589: $url=~s/\?.*$//;
1.278 albertel 1590: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1591: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1592: '<a href="'.$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 1593: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1594: }
1595: return $result;
1596: }
1597:
1598: sub end_simpleeditbutton {
1599: return '';
1.45 albertel 1600: }
1.34 albertel 1601:
1.1 albertel 1602: 1;
1603: __END__
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