Annotation of loncom/homework/structuretags.pm, revision 1.337
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.337 ! albertel 4: # $Id: structuretags.pm,v 1.336 2006/02/16 02:03:25 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();
1.336 albertel 116: my $css_href = &Apache::lonnet::EXT('resource.0.cssfile');
1.335 albertel 117: if ($css_href =~ /\S/) {
118: &Apache::lonxml::extlink($css_href);
119: $head_tag_start =
120: '<link rel="stylesheet" type="text/css" href="'.$css_href.'" />';
121: }
1.327 albertel 122: if ($target eq 'edit') {
123: $head_tag_start.=&Apache::edit::js_change_detection();
124: }
1.159 albertel 125: }
126: my $body_tag_start;
1.318 albertel 127: if (!defined($found{'body'}) && $env{'request.state'} eq 'construct') {
128: if ($env{'environment.remote'} eq 'off') {
129: if ($target eq 'web' || $target eq 'edit') {
130: $body_tag_start=&Apache::loncommon::bodytag();
131: $body_tag_start.=&Apache::lonxml::message_location();
132: }
133: } else {
134: if ($target eq 'web' || $target eq 'edit') {
135: $body_tag_start=&Apache::loncommon::bodytag(undef,undef,undef,1);
136: $body_tag_start.=&Apache::lonxml::message_location();
137: }
1.297 albertel 138: }
1.272 albertel 139: } elsif (!defined($found{'body'})) {
1.159 albertel 140: my $background=&Apache::lonxml::get_param('background',$parstack,
141: $safeeval);
1.290 albertel 142: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
143: $safeeval);
1.299 albertel 144: $body_tag_start=&body_tag_start($target,$background,$bgcolor);
1.291 albertel 145: if ( ($target eq 'web' || $target eq 'webgrade')
146: && $env{'request.state'} ne 'construct') {
1.165 albertel 147: my ($symb,undef,undef,undef,$publicuser)=
148: &Apache::lonxml::whichuser();
149: if ($symb eq '' && !$publicuser) {
1.159 albertel 150: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
1.211 albertel 151: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
1.159 albertel 152: $body_tag_start.=$help;
153: }
154: }
1.245 albertel 155: $body_tag_start.=&Apache::lonxml::message_location();
1.159 albertel 156: }
157: my $form_tag_start;
158: if (!defined($found{'form'})) {
1.337 ! albertel 159: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
! 160: my $uri = &Apache::lonenc::check_encrypted($env{'request.uri'});
1.327 albertel 161: $form_tag_start.=$uri.'" ';
162: if ($target eq 'edit') {
163: $form_tag_start.=&Apache::edit::form_change_detection();
164: }
165: $form_tag_start.='>';
1.159 albertel 166: }
167: return ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.105 albertel 168: }
169:
1.141 matthew 170: #use Time::HiRes();
1.105 albertel 171: sub get_resource_name {
1.159 albertel 172: my ($parstack,$safeeval)=@_;
1.204 albertel 173: if (defined($Apache::lonhomework::name)) {
174: return $Apache::lonhomework::name;
175: }
1.279 albertel 176: my ($symb)=&Apache::lonxml::whichuser();
177: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 178: if ($name eq '') {
179: $name=&Apache::lonnet::EXT('resource.title');
180: if ($name eq 'con_lost') { $name = ''; }
181: }
1.204 albertel 182: if ($name!~/\S+/) {
1.284 albertel 183: $name=$env{'request.uri'};
1.205 albertel 184: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 185: }
1.159 albertel 186: $Apache::lonhomework::name=$name;
187: return $name;
1.105 albertel 188: }
189:
190: sub setup_rndseed {
1.159 albertel 191: my ($safeeval)=@_;
192: my $rndseed;
1.162 albertel 193: my ($symb)=&Apache::lonxml::whichuser();
1.333 albertel 194: if ($env{'request.state'} eq "construct"
195: || $symb eq ''
196: || $Apache::lonhomework::type eq 'practice'
197: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 198: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 199: ['rndseed']);
1.284 albertel 200: $rndseed=$env{'form.rndseed'};
1.159 albertel 201: if (!$rndseed) {
1.162 albertel 202: $rndseed=$Apache::lonhomework::history{'rndseed'};
203: if (!$rndseed) {
204: $rndseed=time;
205: }
1.284 albertel 206: $env{'form.rndseed'}=$rndseed;
1.162 albertel 207: }
1.284 albertel 208: if ($env{'form.resetdata'} eq &mt('New Problem Variation') ||
209: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 210: srand(time);
211: $rndseed=int(rand(2100000000));
1.284 albertel 212: $env{'form.rndseed'}=$rndseed;
213: delete($env{'form.resetdata'});
214: delete($env{'form.newrandomization'});
1.159 albertel 215: }
1.187 albertel 216: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 217: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 218: }
1.247 albertel 219: if ($Apache::lonhomework::history{'resource.CODE'}) {
220: $rndseed=&Apache::lonnet::rndseed();
221: }
1.221 albertel 222: if ($safeeval) {
223: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 224: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 225: }
1.159 albertel 226: }
227: return $rndseed;
1.105 albertel 228: }
229:
1.268 albertel 230: sub remember_problem_state {
231: return '
1.284 albertel 232: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
233: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
234: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 235: }
236:
1.105 albertel 237: sub problem_edit_header {
1.268 albertel 238: return '<input type="hidden" name="submitted" value="edit" />'.
239: &Apache::structuretags::remember_problem_state().'
1.210 albertel 240: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 241: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
1.328 albertel 242: <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 243: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
244: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
245: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.260 albertel 246: &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
247: .'</td></tr></table>'.
1.282 albertel 248: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 249: }
250:
251: sub problem_edit_footer {
1.210 albertel 252: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 253: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
254: &Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).
1.280 albertel 255: "\n</form>\n".&Apache::loncommon::endbodytag()."\n</html>";
1.105 albertel 256: }
257:
1.235 albertel 258: sub option {
259: my ($value,$name) = @_;
260: my $result ="<option value='".$value."' ";
1.284 albertel 261: if ($env{'form.'.$name} eq $value) {
1.235 albertel 262: $result.=" selected='on' ";
263: }
264: $result.='>';
265: return $result;
266: }
267:
1.105 albertel 268: sub problem_web_to_edit_header {
1.159 albertel 269: my ($rndseed)=@_;
1.313 albertel 270: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
271: if (!$Apache::lonhomework::parsing_a_task) {
272: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
273: }
274: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 275: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
276: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 277: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 278: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 279: $rndseed.'"
1.270 albertel 280: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 281: <label><input type="checkbox" name="showallfoils" ';
1.315 albertel 282: my $show_all_foils_text =
283: ($Apache::lonhomework::parsing_a_task) ?
284: &mt(' Show All Instances')
285: : &mt(' Show All Foils');
286:
1.284 albertel 287: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.315 albertel 288: $result.= ' />'.$show_all_foils_text.
1.228 www 289: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.281 albertel 290: '</label><hr />';
1.313 albertel 291: if (!$Apache::lonhomework::parsing_a_task) {
292: $result.="
1.235 albertel 293: <nobr>
294: Problem Status:
295: <select name='problemstate'>
1.270 albertel 296: <option value=''></option>
1.235 albertel 297: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
298: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
299: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
300: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
301: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
302: </select>
303: </nobr>
304: <nobr>
305: Problem Type:
306: <select name='problemtype'>
1.270 albertel 307: <option value=''></option>
1.242 albertel 308: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
309: ".&option('problem','problemtype').&mt("Homework problem")."</option>
310: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 311: </select>
312: </nobr>
313: <nobr>
314: Feedback Mode:
315: <select name='problemstatus'>
316: <option value=''></option>
1.242 albertel 317: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
318: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 319: </select>
320: </nobr>
1.242 albertel 321: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 322: <hr />";
1.313 albertel 323: my $numtoanalyze=$env{'form.numtoanalyze'};
324: if (!$numtoanalyze) { $numtoanalyze=20; }
325: $result.= '<input type="submit" name="problemmode" value='.
326: &mt('"Calculate answers').'" /> for
1.136 albertel 327: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 328: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
329: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 330: '',undef,undef,300).
1.210 albertel 331: '<hr />';
1.313 albertel 332: }
1.159 albertel 333: return $result;
1.48 albertel 334: }
335:
1.65 albertel 336: sub initialize_storage {
1.159 albertel 337: %Apache::lonhomework::results=();
1.162 albertel 338: %Apache::lonhomework::history=();
1.159 albertel 339: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.333 albertel 340: if ($env{'request.state'} eq 'construct'
341: || $symb eq ''
342: || $Apache::lonhomework::type eq 'practice') {
343:
344: my $namespace = $symb || $env{'request.uri'};
345: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
346: $env{'form.resetdata'} eq &mt('New Problem Variation') ||
347: $env{'form.newrandomization'} eq &mt('New Randomization')) {
348: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
349: &Apache::lonxml::debug("Attempt reset");
350: }
1.159 albertel 351: %Apache::lonhomework::history=
1.333 albertel 352: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 353: my ($temp)=keys %Apache::lonhomework::history ;
354: &Apache::lonxml::debug("Return message of $temp");
355: } else {
356: %Apache::lonhomework::history=
357: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
358: }
359: #ignore error conditions
1.67 albertel 360: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 361: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 362: }
363:
364: # -------------------------------------------------------------finalize_storage
365: # Stores away the result has to a student's environment
366: # checks form.grade_ for specific values, other wises stores
367: # to the running users environment
1.285 raeburn 368: # Will increment totals for attempts, students, and corrects
369: # if running user has student role.
1.65 albertel 370: sub finalize_storage {
1.159 albertel 371: my $result;
1.289 albertel 372: if (%Apache::lonhomework::results) {
1.323 albertel 373: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
374: delete(@Apache::lonhomework::results{@remove});
1.159 albertel 375: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.333 albertel 376: if ($env{'request.state'} eq 'construct'
377: || $symb eq ''
378: || $Apache::lonhomework::type eq 'practice') {
379: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 380: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 381: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 382: $namespace,'',$domain,$name);
1.159 albertel 383: &Apache::lonxml::debug('Construct Store return message:'.$result);
384: } else {
385: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
386: $symb,$courseid,$domain,$name);
387: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 388: if ($env{'request.role'} =~/^st/) {
389: &store_aggregates($symb,$courseid);
390: }
1.159 albertel 391: }
1.323 albertel 392: } else {
393: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 394: }
1.159 albertel 395: return $result;
1.65 albertel 396: }
1.289 albertel 397: use Data::Dumper;
1.65 albertel 398:
1.285 raeburn 399: # -------------------------------------------------------------store_aggregates
400: # Sends hash of values to be incremented in nohist_resourcetracker.db
401: # for the course. Increments total number of attempts, unique students
402: # and corrects for each part for an instance of a problem, as appropriate.
403: sub store_aggregates {
404: my ($symb,$courseid) = @_;
1.286 albertel 405: my %aggregate;
406: my @parts;
1.288 albertel 407: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
408: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 409: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 410: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 411: push(@parts, $1);
1.285 raeburn 412: }
413: }
1.286 albertel 414: foreach my $part (@parts) {
415: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
416: eq 'APPROX_ANS' ||
417: $Apache::lonhomework::results{'resource.'.$part.'.award'}
418: eq 'EXACT_ANS') {
1.287 albertel 419: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 420: }
1.286 albertel 421: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 422: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 423: } else {
1.293 albertel 424: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 425: if ($last_reset) {
1.293 albertel 426: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 427: $aggregate{$symb."\0".$part."\0users"} = 1;
428: }
429: }
1.285 raeburn 430: }
1.287 albertel 431: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 432: }
1.292 raeburn 433: if (keys (%aggregate) > 0) {
1.289 albertel 434: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 435: $cdomain,$cname);
436: }
437: }
1.289 albertel 438:
1.65 albertel 439: sub checkout_msg {
1.211 albertel 440: my %lt=&Apache::lonlocal::texthash(
441: 'resource'=>'The resource needs to be checked out',
442: '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.',
443: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
444: 'checkout'=>'Check out Exam for Viewing',
445: 'checkout?'=>'Check out Exam?');
1.159 albertel 446: return (<<ENDCHECKOUT);
1.211 albertel 447: <h2>$lt{'resource'}</h2>
448: <p>$lt{'id_expln'}</p>
449: <font color="red">
450: <p>$lt{'warning'}</p>
1.91 albertel 451: </font>
1.284 albertel 452: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.91 albertel 453: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 454: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 455: </form>
456: ENDCHECKOUT
457: }
458:
1.252 albertel 459: sub firstaccess_msg {
1.253 albertel 460: my ($time,$symb)=@_;
461: my ($map)=&Apache::lonnet::decode_symb($symb);
462: my $foldertitle=&Apache::lonnet::gettitle($map);
463: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.252 albertel 464: return (<<ENDCHECKOUT);
1.253 albertel 465: <h2>The resources in "$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 466: <form name="markaccess" method="POST" action="$env{'request.uri'}">
1.252 albertel 467: <input type="hidden" name="markaccess" value="yes" />
468: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
469: </form>
470: ENDCHECKOUT
471: }
472:
1.204 albertel 473: sub init_problem_globals {
474: my ($type)=@_;
475: #initialize globals
1.308 foxr 476: # For problems, we start out in part 0 (outside a <part> tag).
477: # and part 0 is used to describe the main body of the <problem>
478: #
1.204 albertel 479: if ($type eq 'problem') {
480: $Apache::inputtags::part='0';
481: @Apache::inputtags::partlist=('0');
1.266 albertel 482: $Apache::lonhomework::problemstatus=&get_problem_status('0');
483: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 484:
1.266 albertel 485: } elsif ($type eq 'library') {
1.204 albertel 486: $Apache::inputtags::part='';
487: @Apache::inputtags::partlist=();
488: $Apache::lonhomework::problemstatus='';
1.266 albertel 489: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 490:
1.304 albertel 491: } elsif ($type eq 'Task') {
492: $Apache::inputtags::part='0';
493: @Apache::inputtags::partlist=('0');
494: $Apache::lonhomework::problemstatus='';
495: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 496: }
497: @Apache::inputtags::responselist = ();
498: @Apache::inputtags::importlist = ();
499: @Apache::inputtags::previous=();
500: @Apache::inputtags::previous_version=();
501: $Apache::structuretags::printanswer='No';
502: @Apache::structuretags::whileconds=();
503: @Apache::structuretags::whilebody=();
504: @Apache::structuretags::whileline=();
505: $Apache::lonhomework::scantronmode=0;
506: undef($Apache::lonhomework::name);
507:
508: }
509:
510: sub reset_problem_globals {
511: my ($type)=@_;
512: undef(%Apache::lonhomework::history);
513: undef(%Apache::lonhomework::results);
514: undef($Apache::inputtags::part);
1.208 albertel 515: #don't undef this, lonhomework.pm takes care of this, we use this to
516: #detect if we try to do 2 problems in one file
517: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 518: undef($Apache::lonhomework::name);
519: }
520:
1.241 albertel 521: sub set_problem_state {
1.240 albertel 522: my ($part)=@_;
1.284 albertel 523: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 524: $Apache::lonhomework::history{"resource.$part.solved"}=
525: 'correct_by_student';
526: }
527: }
528:
1.241 albertel 529: sub get_problem_status {
530: my ($part)=@_;
1.267 albertel 531: my $problem_status;
1.284 albertel 532: if ($env{'request.state'} eq 'construct' &&
533: defined($env{'form.problemstatus'})) {
534: $problem_status=$env{'form.problemstatus'};
1.267 albertel 535: } else {
536: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
537: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 538: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 539: }
540: return $problem_status;
541: }
542:
1.9 albertel 543: sub start_problem {
1.326 albertel 544: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 545:
1.311 foxr 546: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 547: if (!$Apache::lonxml::metamode) {
548: &Apache::lonxml::startredirection();
549: }
1.311 foxr 550:
1.308 foxr 551: # Problems don't nest and we don't allow more than one <problem> in
552: # a .problem file.
553: #
1.184 albertel 554: if ( $Apache::inputtags::part ne '' ||
555: $Apache::lonhomework::parsing_a_problem) {
556: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 557: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 558: return '';
559: }
1.184 albertel 560:
561: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 562: &init_problem_globals('problem');
1.166 albertel 563:
1.284 albertel 564: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 565: $Apache::lonhomework::scantronmode=1;
566: }
1.161 albertel 567:
1.246 albertel 568: &initialize_storage();
1.159 albertel 569: if ($target ne 'analyze') {
570: if ($target eq 'web') {
571: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 572: }
1.284 albertel 573: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 574: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 575: if (($env{'request.state'} eq 'construct') &&
576: defined($env{'form.problemtype'})) {
577: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 578: }
1.332 albertel 579: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 580: }
1.164 albertel 581: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 582: my $uri=$env{'request.uri'};
1.159 albertel 583: if ($uri=~/\.(\w+)$/) {
584: $Apache::lonhomework::type=$1;
585: &Apache::lonxml::debug("Using type of $1");
586: } else {
587: $Apache::lonhomework::type='problem';
588: &Apache::lonxml::debug("Using default type, problem, :$uri:");
589: }
1.87 albertel 590: }
1.301 albertel 591: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 592:
1.159 albertel 593: #added vars to the scripting enviroment
1.213 albertel 594: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 595: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 596: &Apache::run::run($expression,$safeeval);
1.159 albertel 597: my $status;
598: my $accessmsg;
599:
600: #should get back a <html> or the neccesary stuff to start XML/MathML
601: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
602: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.284 albertel 603: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 604:
605: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
606: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
607: $target eq 'tex') {
608: #handle exam checkout
609: if ($Apache::lonhomework::type eq 'exam') {
610: my $token=
611: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 612: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 613: $token=&Apache::lonxml::maketoken();
614: $Apache::lonhomework::history{"resource.0.outtoken"}=
615: $token;
616: }
617: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 618: }
1.284 albertel 619: if ($env{'form.markaccess'}) {
1.252 albertel 620: &Apache::lonnet::set_first_access('map');
621: }
1.159 albertel 622: #handle rand seed in construction space
623: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 624: my ($symb)=&Apache::lonxml::whichuser();
1.333 albertel 625: if ($env{'request.state'} ne "construct" &&
626: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 627: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
628: $rndseed.'" />'.
629: '<input type="submit" name="resetdata"
1.334 albertel 630: value="'.&mt('New Problem Variation').'" />';
631: if (exists($env{'form.username'})) {
632: $form_tag_start.=
1.164 albertel 633: '<input type="hidden" name="username"
1.284 albertel 634: value="'.$env{'form.username'}.'" />';
1.334 albertel 635: }
1.333 albertel 636: if ($env{'request.role.adv'}) {
1.267 albertel 637: $form_tag_start.=
1.300 albertel 638: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 639: if (defined($env{'form.showallfoils'})) {
1.267 albertel 640: $form_tag_start.='checked="on"';
641: }
1.300 albertel 642: $form_tag_start.= ' />'.&mt(' Show All Foils').
643: '</label>';
1.267 albertel 644: }
645: $form_tag_start.='<hr />';
1.162 albertel 646: }
1.324 albertel 647:
648: ($status,$accessmsg,my $slot_name,my $slot) =
649: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 650: push (@Apache::inputtags::status,$status);
1.324 albertel 651:
1.159 albertel 652: my $expression='$external::datestatus="'.$status.'";';
653: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
654: &Apache::run::run($expression,$safeeval);
655: &Apache::lonxml::debug("Got $status");
1.324 albertel 656:
1.159 albertel 657: if (( $status eq 'CLOSED' ) ||
658: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 659: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 660: ( $status eq 'BANNED') ||
1.216 albertel 661: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 662: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 663: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 664: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
665: $style);
1.159 albertel 666: if ( $target eq "web" ) {
667: $result.= $head_tag_start.'</head>';
668: my $msg=$body_tag_start;
669: if ($status eq 'UNAVAILABLE') {
1.245 albertel 670: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 671: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 672: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 673: }
1.216 albertel 674: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 675: $msg.='The problem '.$accessmsg;
676: } elsif ($status eq 'UNCHECKEDOUT') {
677: $msg.=&checkout_msg;
1.252 albertel 678: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 679: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 680: } elsif ($status eq 'NOT_IN_A_SLOT') {
681: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 682: }
683: $result.=$msg.'<br />';
684: } elsif ($target eq 'tex') {
1.332 albertel 685: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
686: : '\begin{minipage}{\textwidth}';
687: $result.='\begin{document}\noindent \vskip 1 mm '.
688: $startminipage.'\vskip 0 mm';
1.159 albertel 689: if ($status eq 'UNAVAILABLE') {
1.211 albertel 690: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 691: } else {
1.211 albertel 692: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 693: }
694: }
1.324 albertel 695: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 696: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
697: $style);
1.324 albertel 698: if ($target eq 'web') {
699: $result .= $head_tag_start.'</head>';
700: $result .= $body_tag_start;
701: $result .= &Apache::bridgetask::proctor_validation_screen();
702: } elsif ($target eq 'grade') {
703: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
704: 'problem');
705: }
1.159 albertel 706: } elsif ($target eq 'web') {
707: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 708: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 709: $body_tag_start \n $form_tag_start".
1.227 albertel 710: '<input type="hidden" name="submitted" value="yes" />';
711: # create a page header and exit
1.284 albertel 712: if ($env{'request.state'} eq "construct") {
713: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 714: }
715: # if we are viewing someone else preserve that info
1.284 albertel 716: if (defined $env{'form.grade_symb'}) {
1.227 albertel 717: foreach my $field ('symb','courseid','domain','username') {
718: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 719: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 720: }
721: }
722: } elsif ($target eq 'tex') {
1.319 foxr 723: $result .= 'INSERTTEXFRONTMATTERHERE';
724:
1.99 sakharuk 725: }
1.159 albertel 726: } elsif ($target eq 'edit') {
727: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
728: &problem_edit_header();
1.226 albertel 729: $Apache::lonxml::warnings_error_header=
730: &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 731: my $temp=&Apache::edit::insertlist($target,$token);
732: $result.=$temp;
733: } elsif ($target eq 'modified') {
734: $result=$token->[4];
735: $result.=&Apache::edit::handle_insert();
736: } else {
737: # page_start returned a starting result, delete it if we don't need it
738: $result = '';
1.99 sakharuk 739: }
1.159 albertel 740: return $result;
1.9 albertel 741: }
742:
743: sub end_problem {
1.159 albertel 744: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 745: my $result;
1.310 foxr 746:
1.321 albertel 747: if (!$Apache::lonxml::metamode) {
748: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 749: $Apache::lonxml::post_evaluate=0;
1.321 albertel 750: }
1.319 foxr 751:
752: if ($target eq 'tex') {
1.321 albertel 753:
754: # Figure out the front matter and replace the
755: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
756: # this in end_problem because whether or not we display due
757: # dates depends on whether due dates have already been
758: # displayed in the problem parts.
759:
1.319 foxr 760: my $frontmatter = '';
761: my $startminipage = '';
762: if (not $env{'form.problem_split'}=~/yes/) {
763: $startminipage = '\begin{minipage}{\textwidth}';
764: }
765: my $id = $Apache::inputtags::part;
766: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
767: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
768: my @packages = split /,/,$packages;
769: my $allow_print_points = 0;
770: foreach my $partial_key (@packages) {
771: if ($partial_key=~m/^part_0$/) {
772: $allow_print_points=1;
773: }
774: }
775: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
776: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
777: if (lc($env{'course.'.$env{'request.course.id'}.
778: '.disableexampointprint'}) eq 'yes') {
779: $allow_print_points=0;
780: }
781: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
782: 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 ';
783: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
784: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
785:
786: # Figure out what the due date is and if we need to print
787: # it in the problem header. We have been logging the
788: # last due date written to file.
789:
790: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
791: my $duedate = POSIX::strftime("%c",localtime($duetime));
792: my $temp_file;
793: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
794:
795: # Figure out what the last printed due date is or set it
796: # to the epoch if no duedates have been printed.
797:
798: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
799: if (-e $filename) {
800: $temp_file = Apache::File->new($filename);
801: my @due_file = <$temp_file>;
802: $due_file_content = $due_file[$#due_file];
803: chomp $due_file_content;
804: }
805:
806: # We display the due date iff it is not the same as the last
807: # duedate in problem header ($due_file_content), and
808: # none of our parts displayed a duedate.
809: #
810: my $parts_with_displayduedate;
811: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
812: $parts_with_displayduedate =
813: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
814: } else {
815: $parts_with_displayduedate = 0;
816: }
817: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
818: $temp_file = Apache::File->new('>'.$filename);
819: print $temp_file "$duetime\n";
820: if (not $env{'request.symb'} =~ m/\.page_/) {
821: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
822: $frontmatter .= $begin_doc.
823: '\textit{Due date: '.$duedate.'} '.$toc_line;
824: } else {
825: $frontmatter.= $begin_doc.$toc_line;
826: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
827: }
828: } else {
829: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
830: }
831: } else {
832: if (not $env{'request.symb'} =~ m/\.page_/) {
833: $frontmatter .= $begin_doc.$toc_line;
834: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
835: } else {
836: $frontmatter .= '\vskip 1mm \\\\\\\\';
837: }
838: }
839: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
840: }
841:
1.159 albertel 842: my $status=$Apache::inputtags::status['-1'];
843: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
844: $target eq 'tex') {
1.249 albertel 845: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 846: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 847: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
848: &Apache::inputtags::grade;
1.324 albertel 849: } elsif ($status eq 'NEEDS_CHECKIN') {
850: # no need to grade, and don't want to hide data
1.249 albertel 851: } else {
852: # move any submission data to .hidden
853: &Apache::inputtags::hidealldata($Apache::inputtags::part);
854: }
1.159 albertel 855: } elsif ( ($target eq 'web' || $target eq 'tex') &&
856: $Apache::inputtags::part eq '0' &&
1.252 albertel 857: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 858: # if part is zero, no <part>s existed, so we need show the current
859: # grading status
860: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
861: $result.= $gradestatus;
862: }
863: if (
1.284 albertel 864: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 865: ($target eq 'answer') || ($target eq 'tex')
866: ) {
1.227 albertel 867: if ($target ne 'tex' &&
1.284 albertel 868: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 869: $result.="</form>";
870: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
1.159 albertel 871: }
872: if ($target eq 'web') {
1.281 albertel 873: $result.=&Apache::lonxml::xmlend().'</html>';
1.159 albertel 874: } elsif ($target eq 'tex') {
1.178 sakharuk 875: my $endminipage = '';
1.284 albertel 876: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 877: $endminipage = '\end{minipage}';
878: }
1.284 albertel 879: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 880: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 881: $result=~s/<\/html>//;
1.159 albertel 882: } else {
1.262 sakharuk 883: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 884: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 885: $result .= $endminipage.'\end{document} ';
886: } else {
887: $result .= '';
888: }
1.159 albertel 889: }
890: }
891: }
892: if ($target eq 'grade') {
893: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
894: &finalize_storage();
895: }
1.284 albertel 896: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
897: && $env{'form.answer_output_mode'} ne 'tex') {
1.294 albertel 898: $result.=&Apache::lonxml::xmlend().'</html>';
899: # normally we get it from above, but in CSTR
1.172 albertel 900: # we always show answer mode too.
1.159 albertel 901: }
902: } elsif ($target eq 'meta') {
903: if ($Apache::inputtags::part eq '0') {
1.179 albertel 904: @Apache::inputtags::response=();
1.159 albertel 905: $result=&Apache::response::mandatory_part_meta;
906: }
1.215 albertel 907: $result.=&Apache::response::meta_part_order();
1.258 albertel 908: $result.=&Apache::response::meta_response_order();
1.159 albertel 909: } elsif ($target eq 'edit') {
910: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 911: $result .= &problem_edit_footer();
1.320 albertel 912: } elsif ($target eq 'modified') {
913: $result .= $token->[2];
914: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 915: }
1.155 albertel 916:
1.284 albertel 917: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 918: &Apache::inputtags::check_for_duplicate_ids();
919: }
1.204 albertel 920:
921: &reset_problem_globals('problem');
1.159 albertel 922:
923: return $result;
1.48 albertel 924: }
925:
1.108 albertel 926:
1.48 albertel 927: sub start_library {
1.159 albertel 928: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
929: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 930: if ($$tagstack[0] eq 'library') {
931: &init_problem_globals('library');
932: $Apache::lonhomework::type='problem';
933: }
1.159 albertel 934: if ($target eq 'edit') {
935: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
936: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
937: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
938: &problem_edit_header();
939: my $temp=&Apache::edit::insertlist($target,$token);
940: $result.=$temp;
941: } elsif ($target eq 'modified') {
942: $result=$token->[4];
943: $result.=&Apache::edit::handle_insert();
944: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 945: $env{'request.state'} eq "construct" ) {
1.159 albertel 946: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
947: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
948: my $name=&get_resource_name($parstack,$safeeval);
949: my $rndseed=&setup_rndseed($safeeval);
950: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 951: $body_tag_start \n $form_tag_start".
1.159 albertel 952: '<input type="hidden" name="submitted" value="yes" />';
953: $result.=&problem_web_to_edit_header($rndseed);
954: }
955: return $result;
1.48 albertel 956: }
957:
958: sub end_library {
1.159 albertel 959: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
960: my $result='';
961: if ($target eq 'edit') {
962: $result=&problem_edit_footer();
963: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 964: $env{'request.state'} eq "construct") {
1.280 albertel 965: $result.='</form>'.&Apache::loncommon::endbodytag().
966: &Apache::lonxml::xmlend();
1.159 albertel 967: }
1.204 albertel 968: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 969: return $result;
1.197 www 970: }
971:
972: sub start_definetag {
1.326 albertel 973: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 974:
975: my $result;
976:
977: my $name = $token->[2]->{'name'};
1.326 albertel 978: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 979: if ($name=~/^\//) {
980: $result=
981: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
982: } else {
983: $result=
984: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
985: }
986: $skip=~s/\</\<\;/gs;
987: $skip=~s/\>/\>\;/gs;
988: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
989: return $result;
990: }
991:
992: sub end_definetag {
993: return '';
1.1 albertel 994: }
995:
996: sub start_block {
1.201 albertel 997: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 998:
999: my $result;
1.1 albertel 1000:
1.160 albertel 1001: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 1002: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 1003: my $code = $token->[2]->{'condition'};
1.201 albertel 1004: if (defined($code)) {
1.137 albertel 1005: if (!$Apache::lonxml::default_homework_loaded) {
1006: &Apache::lonxml::default_homework_load($safeeval);
1007: }
1.131 albertel 1008: $result = &Apache::run::run($code,$safeeval);
1009: &Apache::lonxml::debug("block :$code: returned :$result:");
1010: } else {
1011: $result='1';
1012: }
1013: if ( ! $result ) {
1.201 albertel 1014: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1015: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1016: }
1017: $result='';
1018: } elsif ($target eq 'edit') {
1019: $result .=&Apache::edit::tag_start($target,$token);
1020: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1021: $token,40);
1022: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1023: } elsif ($target eq 'modified') {
1024: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1025: $safeeval,'condition');
1026: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1027: }
1.131 albertel 1028: return $result;
1.1 albertel 1029: }
1030:
1031: sub end_block {
1.167 www 1032: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1033: my $result;
1034: if ($target eq "edit") {
1035: $result.= &Apache::edit::tag_end($target,$token,'');
1036: }
1037: return $result;
1038: }
1039:
1040: sub start_languageblock {
1.201 albertel 1041: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1042:
1043: my $result;
1044:
1045: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1046: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 1047: my $include = $token->[2]->{'include'};
1048: my $exclude = $token->[2]->{'exclude'};
1049: my %languages=&Apache::loncommon::display_languages();
1050: $result='1';
1051: if ($include) {
1052: $result='';
1053: foreach (split(/\,/,$include)) {
1054: if ($languages{$_}) { $result='1'; }
1055: }
1056: }
1057: if ($exclude) {
1058: foreach (split(/\,/,$exclude)) {
1059: if ($languages{$_}) { $result='0'; }
1060: }
1061: }
1062: if ( ! $result ) {
1063: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1064: $style);
1065: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1066: }
1067: $result='';
1.167 www 1068: } elsif ($target eq 'edit') {
1069: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1070: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1071: $token,40);
1.211 albertel 1072: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1073: $token,40);
1074: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1075: } elsif ($target eq 'modified') {
1076: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1077: $safeeval,'include',
1078: 'exclude');
1.167 www 1079: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1080: }
1081: return $result;
1082: }
1083:
1084: sub end_languageblock {
1.170 www 1085: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1086: my $result;
1.201 albertel 1087: if ($target eq "edit") {
1.170 www 1088: $result.= &Apache::edit::tag_end($target,$token,'');
1089: }
1090: return $result;
1091: }
1092:
1093: sub start_instructorcomment {
1.201 albertel 1094: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1095:
1096: my $result;
1097:
1098: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1099: $target eq 'tex' || $target eq 'analyze') {
1.284 albertel 1100: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1101: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1102: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1103: $parser,$style);
1.170 www 1104: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1105: }
1106: $result='';
1107: } elsif ($target eq 'edit') {
1108: $result .=&Apache::edit::tag_start($target,$token);
1109: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1110: }
1111: return $result;
1112: }
1113:
1114: sub end_instructorcomment {
1.159 albertel 1115: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1116: my $result;
1117: if ($target eq "edit") {
1118: $result.= &Apache::edit::tag_end($target,$token,'');
1119: }
1120: return $result;
1.4 tsai 1121: }
1122:
1123: sub start_while {
1.326 albertel 1124: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1125:
1.160 albertel 1126: my $result;
1.161 albertel 1127: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 1128: $target eq 'tex' || $target eq 'analyze') {
1129: my $code = $token->[2]->{'condition'};
1.4 tsai 1130:
1.160 albertel 1131: push( @Apache::structuretags::whileconds, $code);
1132: if (!$Apache::lonxml::default_homework_loaded) {
1133: &Apache::lonxml::default_homework_load($safeeval);
1134: }
1135: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1136: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1137: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1138: push( @Apache::structuretags::whileline, $token->[5]);
1139: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1140: if ( $result ) {
1141: &Apache::lonxml::newparser($parser,\$bodytext);
1142: }
1143: } elsif ($target eq 'edit') {
1144: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1145: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1146: $token,40);
1147: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1148: } elsif ($target eq 'modified') {
1149: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1150: $safeeval,'condition');
1151: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1152: }
1.160 albertel 1153: return $result;
1.4 tsai 1154: }
1155:
1156: sub end_while {
1.159 albertel 1157: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1158: my $result;
1159:
1160: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1161: $target eq 'tex' || $target eq 'analyze') {
1162: my $code = pop(@Apache::structuretags::whileconds);
1163: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1164: my $line = pop(@Apache::structuretags::whileline);
1165: my $return = &Apache::run::run($code,$safeeval);
1166: my $starttime=time;
1167: my $error=0;
1168: while ($return) {
1169: if (time-$starttime >
1170: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1171: #$return = 0; $error=1; next;
1.161 albertel 1172: }
1173: $result.=&Apache::scripttag::xmlparse($bodytext);
1174: $return = &Apache::run::run($code,$safeeval);
1175: }
1176: if ($error) {
1.270 albertel 1177: &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 1178: }
1179: } elsif ($target eq "edit") {
1180: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1181: }
1.160 albertel 1182: return $result;
1.1 albertel 1183: }
1.6 tsai 1184:
1.160 albertel 1185: # <randomlist show="1">
1.6 tsai 1186: # <tag1>..</tag1>
1187: # <tag2>..</tag2>
1188: # <tag3>..</tag3>
1.160 albertel 1189: # ...
1.6 tsai 1190: # </randomlist>
1191: sub start_randomlist {
1.326 albertel 1192: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1193: my $result;
1194: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1195: $target eq 'tex' || $target eq 'analyze') {
1.331 albertel 1196: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1197: my $b_parser= HTML::LCParser->new(\$body);
1198: $b_parser->xml_mode(1);
1199: $b_parser->marked_sections(1);
1.159 albertel 1200: my $b_tok;
1201: my @randomlist;
1202: my $list_item;
1203: while($b_tok = $b_parser->get_token() ) {
1204: if($b_tok->[0] eq 'S') { # start tag
1205: # get content of the tag until matching end tag
1206: # get all text upto the matching tag
1207: # and push the content into @randomlist
1208: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1209: $b_parser);
1210: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1211: push(@randomlist,$list_item);
1212: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1213: # $list_item</b>";
1214: }
1215: if($b_tok->[0] eq 'T') { # text
1216: # what to do with text in between tags?
1217: # print "<b>TEXT $b_tok->[1]</b><br />";
1218: }
1219: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1220: # print "<b>END-TAG $b_tok->[1]</b><br />";
1221: # }
1222: }
1.303 albertel 1223: if (@randomlist) {
1224: my @idx_arr = (0 .. $#randomlist);
1225: &Apache::structuretags::shuffle(\@idx_arr);
1226: my $bodytext = '';
1227: my $show=$#randomlist;
1228: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1229: $showarg--;
1230: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1231: for(0 .. $show) {
1232: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1233: }
1234: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1235: }
1236: } elsif ($target eq 'edit' ) {
1237: $result .=&Apache::edit::tag_start($target,$token);
1238: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1239: $token,5);
1240: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1241: } elsif ($target eq 'modified' ) {
1242: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1243: $safeeval,'show');
1244: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1245: }
1246: return $result;
1.7 tsai 1247: }
1248:
1249: sub shuffle {
1250: my $a=shift;
1251: my $i;
1.303 albertel 1252: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1253: &Apache::response::pushrandomnumber();
1.159 albertel 1254: for($i=@$a;--$i;) {
1255: my $j=int(&Math::Random::random_uniform() * ($i+1));
1256: next if $i == $j;
1257: @$a[$i,$j] = @$a[$j,$i];
1258: }
1.251 albertel 1259: &Apache::response::poprandomnumber();
1.7 tsai 1260: }
1.6 tsai 1261: }
1262:
1263: sub end_randomlist {
1.159 albertel 1264: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1265: my $result;
1266: if ($target eq 'edit' ) {
1267: $result=&Apache::edit::tag_end($target,$token,
1268: 'End Randomly Parsed Block');
1269: }
1270: return $result;
1.6 tsai 1271: }
1272:
1.283 albertel 1273: sub ordered_show_check {
1274: my $last_part=$Apache::inputtags::partlist[-2];
1275: my $in_order=
1276: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1277: my $in_order_show=1;
1278: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1279: $in_order_show=&Apache::response::check_status($last_part);
1280: }
1281: return $in_order_show;
1282: }
1283:
1.11 albertel 1284: sub start_part {
1.326 albertel 1285: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1286: if (!$Apache::lonxml::metamode) {
1287: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1288: # duedates.
1289: }
1.159 albertel 1290: my $result='';
1291: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1292: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1293: $Apache::inputtags::part=$id;
1.177 albertel 1294: push(@Apache::inputtags::partlist,$id);
1295: @Apache::inputtags::response=();
1.159 albertel 1296: @Apache::inputtags::previous=();
1297: @Apache::inputtags::previous_version=();
1.241 albertel 1298: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1299: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1300: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1301: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1302: my $in_order_show=&ordered_show_check();
1.214 albertel 1303: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1304: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1305: &Apache::run::run($expression,$safeeval);
1.159 albertel 1306:
1307: if ($target eq 'meta') {
1.224 www 1308: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1309: return &Apache::response::mandatory_part_meta.
1310: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1311: } elsif ($target eq 'web' || $target eq 'grade' ||
1312: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1313: if ($hidden || !$in_order_show) {
1.326 albertel 1314: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1315: } else {
1316: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1317: push (@Apache::inputtags::status,$status);
1318: my $expression='$external::datestatus="'.$status.'";';
1319: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1320: &Apache::run::run($expression,$safeeval);
1.284 albertel 1321: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1322: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1323: }
1.216 albertel 1324: if (( $status eq 'CLOSED' ) ||
1325: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1326: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1327: ( $status eq 'BANNED') ||
1328: ( $status eq 'UNAVAILABLE') ||
1329: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1330: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1331: $style);
1.159 albertel 1332: if ( $target eq "web" ) {
1.211 albertel 1333: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1334: } elsif ( $target eq 'tex' ) {
1.284 albertel 1335: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1336: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1337: } else {
1.211 albertel 1338: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1339: }
1.159 albertel 1340: }
1341: } else {
1342: if ($target eq 'tex') {
1.284 albertel 1343: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1344: if ($$tagstack[-2] eq 'td') {
1345: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1346: } else {
1347: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1348: }
1.195 sakharuk 1349: }
1.159 albertel 1350: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1351: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1352: my @allkeys = split /,/,$allkeys;
1353: my $allow_print_points = 0;
1354: foreach my $partial_key (@allkeys) {
1.230 albertel 1355: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1356: if ($1 ne '0') {$allow_print_points=1;}
1357: }
1358: }
1.275 albertel 1359: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1360: if (defined($maxtries) && $maxtries < 0) {
1361: $allow_print_points=0;
1362: }
1.302 albertel 1363: if (lc($env{'course.'.$env{'request.course.id'}.
1364: '.disableexampointprint'}) eq 'yes') {
1365: $allow_print_points=0;
1366: }
1.222 sakharuk 1367: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1368: } elsif ($target eq 'web') {
1369: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1370: }
1371: }
1372: }
1373: } elsif ($target eq 'edit') {
1374: $result.=&Apache::edit::tag_start($target,$token);
1375: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1376: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1377: ' '.
1378: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1379: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1380: } elsif ($target eq 'modified') {
1381: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1382: $safeeval,'id','display');
1.159 albertel 1383: if ($constructtag) {
1.225 albertel 1384: #limiting ids to only letters numbers, and space
1.224 www 1385: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1386: $result = &Apache::edit::rebuild_tag($token);
1387: $result.=&Apache::edit::handle_insert();
1388: }
1389: }
1390: return $result;
1.11 albertel 1391: }
1392:
1393: sub end_part {
1.159 albertel 1394: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1395: &Apache::lonxml::debug("in end_part $target ");
1396: my $status=$Apache::inputtags::status['-1'];
1397: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1398: my $in_order_show=&ordered_show_check();
1.321 albertel 1399: my $result;
1400: if (!$Apache::lonxml::metamode) {
1401: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1402: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1403: }
1.312 albertel 1404: if ($target eq 'grade') {
1.249 albertel 1405: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1406: !$hidden && $in_order_show) {
1.311 foxr 1407: $result.=&Apache::inputtags::grade;
1.249 albertel 1408: } else {
1409: # move any submission data to .hidden
1410: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1411: }
1.283 albertel 1412: } elsif (($target eq 'web' || $target eq 'tex') &&
1413: !$hidden && $in_order_show) {
1.159 albertel 1414: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1415: $target);
1.212 albertel 1416: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1417: $gradestatus='';
1418: }
1.311 foxr 1419: $result.=$gradestatus;
1.265 sakharuk 1420: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1421: } elsif ($target eq 'edit') {
1.311 foxr 1422: $result.=&Apache::edit::end_table();
1.322 albertel 1423: } elsif ($target eq 'modified') {
1424: $result .= $token->[2];
1425: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 1426: }
1427: pop @Apache::inputtags::status;
1428: $Apache::inputtags::part='';
1.295 albertel 1429: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1430: return $result;
1.11 albertel 1431: }
1.1 albertel 1432:
1.25 albertel 1433: sub start_preduedate {
1.326 albertel 1434: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1435: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1.236 albertel 1436: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1437: if (!$Apache::lonhomework::scantronmode &&
1438: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1439: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1440: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1441: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1442: }
1.24 albertel 1443: }
1.159 albertel 1444: return '';
1.24 albertel 1445: }
1446:
1.25 albertel 1447: sub end_preduedate {
1.159 albertel 1448: return '';
1.24 albertel 1449: }
1450:
1.25 albertel 1451: sub start_postanswerdate {
1.326 albertel 1452: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.234 albertel 1453: if ($target eq 'web' || $target eq 'grade') {
1.300 albertel 1454: if ($Apache::lonhomework::scantronmode ||
1455: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.326 albertel 1456: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1457: }
1458: } elsif ($target eq 'tex') {
1.326 albertel 1459: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1460: }
1461: return '';
1.24 albertel 1462: }
1463:
1.25 albertel 1464: sub end_postanswerdate {
1.159 albertel 1465: return '';
1.24 albertel 1466: }
1467:
1.25 albertel 1468: sub start_notsolved {
1.326 albertel 1469: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1470: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1471: $target eq 'tex') {
1472: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1473: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1474: if ($gradestatus =~ /^correct/ &&
1475: &Apache::response::show_answer()) {
1.159 albertel 1476: &Apache::lonxml::debug("skipping");
1.326 albertel 1477: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1478: }
1.24 albertel 1479: }
1.159 albertel 1480: return '';
1.24 albertel 1481: }
1482:
1.25 albertel 1483: sub end_notsolved {
1.159 albertel 1484: return '';
1.24 albertel 1485: }
1486:
1487: sub start_solved {
1.326 albertel 1488: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1489: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1490: $target eq 'tex') {
1491: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1492: if ($gradestatus !~ /^correct/ ||
1493: !&Apache::response::show_answer()) {
1.326 albertel 1494: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1495: }
1.24 albertel 1496: }
1.159 albertel 1497: return '';
1.24 albertel 1498: }
1499:
1500: sub end_solved {
1.248 albertel 1501: return '';
1502: }
1503:
1504: sub start_problemtype {
1.326 albertel 1505: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1506: my $result;
1507: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1508: $target eq 'tex' || $target eq 'analyze') {
1509: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1510: if (!defined($mode)) { $mode='show'; }
1511: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1512: my $found=0;
1513: foreach my $type (split(',',$for)) {
1514: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1515: }
1516: if ($mode eq 'show' && !$found) {
1.326 albertel 1517: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1518: }
1519: if ($mode eq 'hide' && $found) {
1.326 albertel 1520: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1521: }
1522: } elsif ($target eq 'edit') {
1523: $result .=&Apache::edit::tag_start($target,$token);
1524: $result.=&Apache::edit::select_arg('Mode:','mode',
1525: [['show','Show'],
1526: ['hide','Hide']]
1527: ,$token);
1528: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1529: [ ['exam','Exam/Quiz Problem'],
1530: ['survey','Survey'],
1531: ['problem','Homework Problem'] ]
1532: ,$token);
1533: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1534: } elsif ($target eq 'modified') {
1535: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1536: $safeeval,'mode','for');
1537: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1538: }
1539: return $result;
1540: }
1541:
1542: sub end_problemtype {
1.159 albertel 1543: return '';
1.24 albertel 1544: }
1.34 albertel 1545:
1546: sub start_startouttext {
1.159 albertel 1547: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1548: my @result=(''.'');
1549: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1550: return (@result);
1.34 albertel 1551: }
1.159 albertel 1552:
1.34 albertel 1553: sub end_startouttext {
1.326 albertel 1554: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1555: my $result='';
1556: my $text='';
1557:
1558: if ($target eq 'edit') {
1.326 albertel 1559: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1560: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1561: <td>".&mt('Delete:').
1.159 albertel 1562: &Apache::edit::deletelist($target,$token)
1563: ."</td>
1.42 albertel 1564: <td>".
1.159 albertel 1565: &Apache::edit::insertlist($target,$token).
1566: &Apache::edit::end_row().
1567: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1568: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1569: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1570: }
1571: if ($target eq 'modified') {
1.219 albertel 1572: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1573: }
1574: if ($target eq 'tex') {
1575: $result .= '\noindent ';
1576: }
1577: return $result;
1.34 albertel 1578: }
1.159 albertel 1579:
1.34 albertel 1580: sub start_endouttext {
1.159 albertel 1581: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1582: my $result='';
1583: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1584: if ($target eq "modified") {
1585: $result='<endouttext />'.
1586: &Apache::edit::handle_insertafter('startouttext'); }
1587: return $result;
1.34 albertel 1588: }
1.159 albertel 1589:
1.34 albertel 1590: sub end_endouttext {
1.159 albertel 1591: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1592: my @result=('','');
1593: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1594: return (@result);
1.34 albertel 1595: }
1.159 albertel 1596:
1.45 albertel 1597: sub delete_startouttext {
1.326 albertel 1598: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1599: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1600: my $text=$$parser['-1']->get_text("/endouttext");
1601: my $ntoken=$$parser['-1']->get_token();
1602: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1603: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1604: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1605: # they did the last time round
1606: &Apache::lonxml::increasedepth($ntoken);
1607: &Apache::lonxml::decreasedepth($ntoken);
1608: return 1;
1.193 www 1609: }
1610:
1611: sub start_simpleeditbutton {
1612: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1613: my $result='';
1.284 albertel 1614: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1615: ($target eq 'web') &&
1.330 albertel 1616: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1617: my $url=$env{'request.noversionuri'};
1.193 www 1618: $url=~s/\?.*$//;
1.278 albertel 1619: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1620: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1621: '<a href="'.$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 1622: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1623: }
1624: return $result;
1625: }
1626:
1627: sub end_simpleeditbutton {
1628: return '';
1.45 albertel 1629: }
1.34 albertel 1630:
1.1 albertel 1631: 1;
1632: __END__
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