Annotation of loncom/homework/structuretags.pm, revision 1.340
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.340 ! albertel 4: # $Id: structuretags.pm,v 1.339 2006/03/29 22:41:32 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;
1.338 albertel 39: use Apache::lonenc();
1.267 albertel 40: use Time::HiRes qw( gettimeofday tv_interval );
1.78 harris41 41: BEGIN {
1.248 albertel 42: &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 43: }
44:
45: sub start_web {
1.326 albertel 46: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
47: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
1.339 albertel 48: if ($target eq 'web' || $target eq 'webgrade') {
1.200 albertel 49: return $bodytext;
1.159 albertel 50: }
51: return '';
1.10 albertel 52: }
53:
54: sub end_web {
1.44 ng 55: return '';
1.10 albertel 56: }
57:
58: sub start_tex {
1.326 albertel 59: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 60: my $result='';
1.326 albertel 61: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
1.200 albertel 62: if ($target eq 'tex') {
63: return $bodytext.' ';
1.159 albertel 64: }
1.198 sakharuk 65: return $result;;
1.10 albertel 66: }
67:
68: sub end_tex {
1.44 ng 69: return '';
1.9 albertel 70: }
71:
1.290 albertel 72: sub body_tag_start {
73: my ($target,$background,$bgcolor)=@_;
74: my $body_tag_start='<body onload="'.&Apache::lonmenu::loadevents().'" '.
75: 'onunload="'.&Apache::lonmenu::unloadevents().'" ';
76: if ($env{'browser.imagesuppress'} eq 'on') { $background=''; }
77: if ($background) {
1.306 albertel 78: &Apache::lonxml::extlink($background);
1.290 albertel 79: $body_tag_start.='background="'.$background.'" ';
80: } else {
81: if (($bgcolor) && ($env{'browser.blackwhite'} ne 'on')) {
82: $body_tag_start.='bgcolor="'.$bgcolor.'" ';
83: } else {
84: $body_tag_start.='bgcolor="#ffffff"';
85: }
86: }
87: if ($env{'browser.fontenhance'} eq 'on') {
88: $body_tag_start.=' style="font-size: x-large;" ';
89: }
90: $body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1);
1.297 albertel 91:
92: &Apache::lontexconvert::jsMath_reset();
1.290 albertel 93: if ($env{'environment.texengine'} eq 'jsMath') {
1.297 albertel 94: $body_tag_start.=&Apache::lontexconvert::jsMath_header();
1.290 albertel 95: }
96: return $body_tag_start;
97: }
1.291 albertel 98:
1.48 albertel 99: sub page_start {
1.159 albertel 100: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
101: my %found;
1.207 albertel 102: foreach my $taginside (@$tagstack) {
1.159 albertel 103: foreach my $taglookedfor ('html','body','form') {
104: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
105: }
106: }
107:
108: my $result;
109: my $head_tag_start;
110: if (!defined($found{'html'})) {
111: $result=&Apache::londefdef::start_html($target,$token,$tagstack,
112: $parstack,$parser,$safeeval);
1.254 www 113: $head_tag_start='<head>'.&Apache::lonmenu::registerurl(undef,$target).
1.261 www 114: &Apache::lonhtmlcommon::htmlareaheaders().
1.270 albertel 115: &Apache::lonhtmlcommon::spellheader().
116: &Apache::lonxml::fontsettings();
1.336 albertel 117: my $css_href = &Apache::lonnet::EXT('resource.0.cssfile');
1.335 albertel 118: if ($css_href =~ /\S/) {
119: &Apache::lonxml::extlink($css_href);
120: $head_tag_start =
121: '<link rel="stylesheet" type="text/css" href="'.$css_href.'" />';
122: }
1.327 albertel 123: if ($target eq 'edit') {
124: $head_tag_start.=&Apache::edit::js_change_detection();
125: }
1.159 albertel 126: }
127: my $body_tag_start;
1.318 albertel 128: if (!defined($found{'body'}) && $env{'request.state'} eq 'construct') {
129: if ($env{'environment.remote'} eq 'off') {
130: if ($target eq 'web' || $target eq 'edit') {
131: $body_tag_start=&Apache::loncommon::bodytag();
132: $body_tag_start.=&Apache::lonxml::message_location();
133: }
134: } else {
135: if ($target eq 'web' || $target eq 'edit') {
136: $body_tag_start=&Apache::loncommon::bodytag(undef,undef,undef,1);
137: $body_tag_start.=&Apache::lonxml::message_location();
138: }
1.297 albertel 139: }
1.272 albertel 140: } elsif (!defined($found{'body'})) {
1.159 albertel 141: my $background=&Apache::lonxml::get_param('background',$parstack,
142: $safeeval);
1.290 albertel 143: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
144: $safeeval);
1.299 albertel 145: $body_tag_start=&body_tag_start($target,$background,$bgcolor);
1.291 albertel 146: if ( ($target eq 'web' || $target eq 'webgrade')
147: && $env{'request.state'} ne 'construct') {
1.165 albertel 148: my ($symb,undef,undef,undef,$publicuser)=
149: &Apache::lonxml::whichuser();
150: if ($symb eq '' && !$publicuser) {
1.159 albertel 151: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
1.211 albertel 152: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
1.159 albertel 153: $body_tag_start.=$help;
154: }
155: }
1.245 albertel 156: $body_tag_start.=&Apache::lonxml::message_location();
1.159 albertel 157: }
158: my $form_tag_start;
159: if (!defined($found{'form'})) {
1.337 albertel 160: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.338 albertel 161: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.327 albertel 162: $form_tag_start.=$uri.'" ';
163: if ($target eq 'edit') {
164: $form_tag_start.=&Apache::edit::form_change_detection();
165: }
166: $form_tag_start.='>';
1.159 albertel 167: }
168: return ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.105 albertel 169: }
170:
1.141 matthew 171: #use Time::HiRes();
1.105 albertel 172: sub get_resource_name {
1.159 albertel 173: my ($parstack,$safeeval)=@_;
1.204 albertel 174: if (defined($Apache::lonhomework::name)) {
175: return $Apache::lonhomework::name;
176: }
1.279 albertel 177: my ($symb)=&Apache::lonxml::whichuser();
178: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 179: if ($name eq '') {
180: $name=&Apache::lonnet::EXT('resource.title');
181: if ($name eq 'con_lost') { $name = ''; }
182: }
1.204 albertel 183: if ($name!~/\S+/) {
1.284 albertel 184: $name=$env{'request.uri'};
1.205 albertel 185: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 186: }
1.159 albertel 187: $Apache::lonhomework::name=$name;
188: return $name;
1.105 albertel 189: }
190:
191: sub setup_rndseed {
1.159 albertel 192: my ($safeeval)=@_;
193: my $rndseed;
1.162 albertel 194: my ($symb)=&Apache::lonxml::whichuser();
1.333 albertel 195: if ($env{'request.state'} eq "construct"
196: || $symb eq ''
197: || $Apache::lonhomework::type eq 'practice'
198: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 199: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 200: ['rndseed']);
1.284 albertel 201: $rndseed=$env{'form.rndseed'};
1.159 albertel 202: if (!$rndseed) {
1.162 albertel 203: $rndseed=$Apache::lonhomework::history{'rndseed'};
204: if (!$rndseed) {
205: $rndseed=time;
206: }
1.284 albertel 207: $env{'form.rndseed'}=$rndseed;
1.162 albertel 208: }
1.284 albertel 209: if ($env{'form.resetdata'} eq &mt('New Problem Variation') ||
210: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 211: srand(time);
212: $rndseed=int(rand(2100000000));
1.284 albertel 213: $env{'form.rndseed'}=$rndseed;
214: delete($env{'form.resetdata'});
215: delete($env{'form.newrandomization'});
1.159 albertel 216: }
1.187 albertel 217: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 218: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 219: }
1.247 albertel 220: if ($Apache::lonhomework::history{'resource.CODE'}) {
221: $rndseed=&Apache::lonnet::rndseed();
222: }
1.221 albertel 223: if ($safeeval) {
224: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 225: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 226: }
1.159 albertel 227: }
228: return $rndseed;
1.105 albertel 229: }
230:
1.268 albertel 231: sub remember_problem_state {
232: return '
1.284 albertel 233: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
234: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
235: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 236: }
237:
1.105 albertel 238: sub problem_edit_header {
1.268 albertel 239: return '<input type="hidden" name="submitted" value="edit" />'.
240: &Apache::structuretags::remember_problem_state().'
1.210 albertel 241: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 242: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
1.328 albertel 243: <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 244: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
245: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
246: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.260 albertel 247: &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
248: .'</td></tr></table>'.
1.282 albertel 249: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 250: }
251:
252: sub problem_edit_footer {
1.210 albertel 253: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 254: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
255: &Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).
1.280 albertel 256: "\n</form>\n".&Apache::loncommon::endbodytag()."\n</html>";
1.105 albertel 257: }
258:
1.235 albertel 259: sub option {
260: my ($value,$name) = @_;
261: my $result ="<option value='".$value."' ";
1.284 albertel 262: if ($env{'form.'.$name} eq $value) {
1.235 albertel 263: $result.=" selected='on' ";
264: }
265: $result.='>';
266: return $result;
267: }
268:
1.105 albertel 269: sub problem_web_to_edit_header {
1.159 albertel 270: my ($rndseed)=@_;
1.313 albertel 271: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
272: if (!$Apache::lonhomework::parsing_a_task) {
273: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
274: }
275: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 276: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
277: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 278: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 279: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 280: $rndseed.'"
1.270 albertel 281: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 282: <label><input type="checkbox" name="showallfoils" ';
1.315 albertel 283: my $show_all_foils_text =
284: ($Apache::lonhomework::parsing_a_task) ?
285: &mt(' Show All Instances')
286: : &mt(' Show All Foils');
287:
1.284 albertel 288: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.315 albertel 289: $result.= ' />'.$show_all_foils_text.
1.228 www 290: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.281 albertel 291: '</label><hr />';
1.313 albertel 292: if (!$Apache::lonhomework::parsing_a_task) {
293: $result.="
1.235 albertel 294: <nobr>
295: Problem Status:
296: <select name='problemstate'>
1.270 albertel 297: <option value=''></option>
1.235 albertel 298: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
299: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
300: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
301: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
302: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
303: </select>
304: </nobr>
305: <nobr>
306: Problem Type:
307: <select name='problemtype'>
1.270 albertel 308: <option value=''></option>
1.242 albertel 309: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
310: ".&option('problem','problemtype').&mt("Homework problem")."</option>
311: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 312: </select>
313: </nobr>
314: <nobr>
315: Feedback Mode:
316: <select name='problemstatus'>
317: <option value=''></option>
1.242 albertel 318: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
319: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 320: </select>
321: </nobr>
1.242 albertel 322: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 323: <hr />";
1.313 albertel 324: my $numtoanalyze=$env{'form.numtoanalyze'};
325: if (!$numtoanalyze) { $numtoanalyze=20; }
326: $result.= '<input type="submit" name="problemmode" value='.
327: &mt('"Calculate answers').'" /> for
1.136 albertel 328: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 329: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
330: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 331: '',undef,undef,300).
1.210 albertel 332: '<hr />';
1.313 albertel 333: }
1.159 albertel 334: return $result;
1.48 albertel 335: }
336:
1.65 albertel 337: sub initialize_storage {
1.159 albertel 338: %Apache::lonhomework::results=();
1.162 albertel 339: %Apache::lonhomework::history=();
1.159 albertel 340: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.333 albertel 341: if ($env{'request.state'} eq 'construct'
342: || $symb eq ''
343: || $Apache::lonhomework::type eq 'practice') {
344:
345: my $namespace = $symb || $env{'request.uri'};
346: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
347: $env{'form.resetdata'} eq &mt('New Problem Variation') ||
348: $env{'form.newrandomization'} eq &mt('New Randomization')) {
349: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
350: &Apache::lonxml::debug("Attempt reset");
351: }
1.159 albertel 352: %Apache::lonhomework::history=
1.333 albertel 353: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 354: my ($temp)=keys %Apache::lonhomework::history ;
355: &Apache::lonxml::debug("Return message of $temp");
356: } else {
357: %Apache::lonhomework::history=
358: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
359: }
360: #ignore error conditions
1.67 albertel 361: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 362: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 363: }
364:
365: # -------------------------------------------------------------finalize_storage
366: # Stores away the result has to a student's environment
367: # checks form.grade_ for specific values, other wises stores
368: # to the running users environment
1.285 raeburn 369: # Will increment totals for attempts, students, and corrects
370: # if running user has student role.
1.65 albertel 371: sub finalize_storage {
1.159 albertel 372: my $result;
1.289 albertel 373: if (%Apache::lonhomework::results) {
1.323 albertel 374: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
375: delete(@Apache::lonhomework::results{@remove});
1.159 albertel 376: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.333 albertel 377: if ($env{'request.state'} eq 'construct'
378: || $symb eq ''
379: || $Apache::lonhomework::type eq 'practice') {
380: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 381: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 382: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 383: $namespace,'',$domain,$name);
1.159 albertel 384: &Apache::lonxml::debug('Construct Store return message:'.$result);
385: } else {
386: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
387: $symb,$courseid,$domain,$name);
388: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 389: if ($env{'request.role'} =~/^st/) {
390: &store_aggregates($symb,$courseid);
391: }
1.159 albertel 392: }
1.323 albertel 393: } else {
394: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 395: }
1.159 albertel 396: return $result;
1.65 albertel 397: }
1.289 albertel 398: use Data::Dumper;
1.65 albertel 399:
1.285 raeburn 400: # -------------------------------------------------------------store_aggregates
401: # Sends hash of values to be incremented in nohist_resourcetracker.db
402: # for the course. Increments total number of attempts, unique students
403: # and corrects for each part for an instance of a problem, as appropriate.
404: sub store_aggregates {
405: my ($symb,$courseid) = @_;
1.286 albertel 406: my %aggregate;
407: my @parts;
1.288 albertel 408: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
409: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 410: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 411: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 412: push(@parts, $1);
1.285 raeburn 413: }
414: }
1.286 albertel 415: foreach my $part (@parts) {
416: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
417: eq 'APPROX_ANS' ||
418: $Apache::lonhomework::results{'resource.'.$part.'.award'}
419: eq 'EXACT_ANS') {
1.287 albertel 420: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 421: }
1.286 albertel 422: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 423: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 424: } else {
1.293 albertel 425: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 426: if ($last_reset) {
1.293 albertel 427: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 428: $aggregate{$symb."\0".$part."\0users"} = 1;
429: }
430: }
1.285 raeburn 431: }
1.287 albertel 432: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 433: }
1.292 raeburn 434: if (keys (%aggregate) > 0) {
1.289 albertel 435: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 436: $cdomain,$cname);
437: }
438: }
1.289 albertel 439:
1.65 albertel 440: sub checkout_msg {
1.211 albertel 441: my %lt=&Apache::lonlocal::texthash(
442: 'resource'=>'The resource needs to be checked out',
443: '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.',
444: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
445: 'checkout'=>'Check out Exam for Viewing',
446: 'checkout?'=>'Check out Exam?');
1.159 albertel 447: return (<<ENDCHECKOUT);
1.211 albertel 448: <h2>$lt{'resource'}</h2>
449: <p>$lt{'id_expln'}</p>
450: <font color="red">
451: <p>$lt{'warning'}</p>
1.91 albertel 452: </font>
1.284 albertel 453: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.91 albertel 454: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 455: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 456: </form>
457: ENDCHECKOUT
458: }
459:
1.252 albertel 460: sub firstaccess_msg {
1.253 albertel 461: my ($time,$symb)=@_;
462: my ($map)=&Apache::lonnet::decode_symb($symb);
463: my $foldertitle=&Apache::lonnet::gettitle($map);
464: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.252 albertel 465: return (<<ENDCHECKOUT);
1.253 albertel 466: <h2>The resources in "$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 467: <form name="markaccess" method="POST" action="$env{'request.uri'}">
1.252 albertel 468: <input type="hidden" name="markaccess" value="yes" />
469: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
470: </form>
471: ENDCHECKOUT
472: }
473:
1.204 albertel 474: sub init_problem_globals {
475: my ($type)=@_;
476: #initialize globals
1.308 foxr 477: # For problems, we start out in part 0 (outside a <part> tag).
478: # and part 0 is used to describe the main body of the <problem>
479: #
1.204 albertel 480: if ($type eq 'problem') {
481: $Apache::inputtags::part='0';
482: @Apache::inputtags::partlist=('0');
1.266 albertel 483: $Apache::lonhomework::problemstatus=&get_problem_status('0');
484: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 485:
1.266 albertel 486: } elsif ($type eq 'library') {
1.204 albertel 487: $Apache::inputtags::part='';
488: @Apache::inputtags::partlist=();
489: $Apache::lonhomework::problemstatus='';
1.266 albertel 490: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 491:
1.304 albertel 492: } elsif ($type eq 'Task') {
493: $Apache::inputtags::part='0';
494: @Apache::inputtags::partlist=('0');
495: $Apache::lonhomework::problemstatus='';
496: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 497: }
498: @Apache::inputtags::responselist = ();
499: @Apache::inputtags::importlist = ();
500: @Apache::inputtags::previous=();
501: @Apache::inputtags::previous_version=();
502: $Apache::structuretags::printanswer='No';
503: @Apache::structuretags::whileconds=();
504: @Apache::structuretags::whilebody=();
505: @Apache::structuretags::whileline=();
506: $Apache::lonhomework::scantronmode=0;
507: undef($Apache::lonhomework::name);
508:
509: }
510:
511: sub reset_problem_globals {
512: my ($type)=@_;
513: undef(%Apache::lonhomework::history);
514: undef(%Apache::lonhomework::results);
515: undef($Apache::inputtags::part);
1.208 albertel 516: #don't undef this, lonhomework.pm takes care of this, we use this to
517: #detect if we try to do 2 problems in one file
518: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 519: undef($Apache::lonhomework::name);
520: }
521:
1.241 albertel 522: sub set_problem_state {
1.240 albertel 523: my ($part)=@_;
1.284 albertel 524: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 525: $Apache::lonhomework::history{"resource.$part.solved"}=
526: 'correct_by_student';
527: }
528: }
529:
1.241 albertel 530: sub get_problem_status {
531: my ($part)=@_;
1.267 albertel 532: my $problem_status;
1.284 albertel 533: if ($env{'request.state'} eq 'construct' &&
534: defined($env{'form.problemstatus'})) {
535: $problem_status=$env{'form.problemstatus'};
1.267 albertel 536: } else {
537: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
538: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 539: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 540: }
541: return $problem_status;
542: }
543:
1.9 albertel 544: sub start_problem {
1.326 albertel 545: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 546:
1.311 foxr 547: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 548: if (!$Apache::lonxml::metamode) {
549: &Apache::lonxml::startredirection();
550: }
1.311 foxr 551:
1.308 foxr 552: # Problems don't nest and we don't allow more than one <problem> in
553: # a .problem file.
554: #
1.184 albertel 555: if ( $Apache::inputtags::part ne '' ||
556: $Apache::lonhomework::parsing_a_problem) {
557: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 558: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 559: return '';
560: }
1.184 albertel 561:
562: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 563: &init_problem_globals('problem');
1.166 albertel 564:
1.284 albertel 565: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 566: $Apache::lonhomework::scantronmode=1;
567: }
1.161 albertel 568:
1.246 albertel 569: &initialize_storage();
1.159 albertel 570: if ($target ne 'analyze') {
571: if ($target eq 'web') {
572: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 573: }
1.284 albertel 574: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 575: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 576: if (($env{'request.state'} eq 'construct') &&
577: defined($env{'form.problemtype'})) {
578: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 579: }
1.332 albertel 580: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 581: }
1.164 albertel 582: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 583: my $uri=$env{'request.uri'};
1.159 albertel 584: if ($uri=~/\.(\w+)$/) {
585: $Apache::lonhomework::type=$1;
586: &Apache::lonxml::debug("Using type of $1");
587: } else {
588: $Apache::lonhomework::type='problem';
589: &Apache::lonxml::debug("Using default type, problem, :$uri:");
590: }
1.87 albertel 591: }
1.301 albertel 592: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 593:
1.159 albertel 594: #added vars to the scripting enviroment
1.213 albertel 595: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 596: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 597: &Apache::run::run($expression,$safeeval);
1.159 albertel 598: my $status;
599: my $accessmsg;
600:
601: #should get back a <html> or the neccesary stuff to start XML/MathML
602: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
603: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.284 albertel 604: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 605:
606: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
607: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
608: $target eq 'tex') {
609: #handle exam checkout
610: if ($Apache::lonhomework::type eq 'exam') {
611: my $token=
612: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 613: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 614: $token=&Apache::lonxml::maketoken();
615: $Apache::lonhomework::history{"resource.0.outtoken"}=
616: $token;
617: }
618: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 619: }
1.284 albertel 620: if ($env{'form.markaccess'}) {
1.252 albertel 621: &Apache::lonnet::set_first_access('map');
622: }
1.159 albertel 623: #handle rand seed in construction space
624: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 625: my ($symb)=&Apache::lonxml::whichuser();
1.333 albertel 626: if ($env{'request.state'} ne "construct" &&
627: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 628: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
629: $rndseed.'" />'.
630: '<input type="submit" name="resetdata"
1.334 albertel 631: value="'.&mt('New Problem Variation').'" />';
632: if (exists($env{'form.username'})) {
633: $form_tag_start.=
1.164 albertel 634: '<input type="hidden" name="username"
1.284 albertel 635: value="'.$env{'form.username'}.'" />';
1.334 albertel 636: }
1.333 albertel 637: if ($env{'request.role.adv'}) {
1.267 albertel 638: $form_tag_start.=
1.300 albertel 639: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 640: if (defined($env{'form.showallfoils'})) {
1.267 albertel 641: $form_tag_start.='checked="on"';
642: }
1.300 albertel 643: $form_tag_start.= ' />'.&mt(' Show All Foils').
644: '</label>';
1.267 albertel 645: }
646: $form_tag_start.='<hr />';
1.162 albertel 647: }
1.324 albertel 648:
649: ($status,$accessmsg,my $slot_name,my $slot) =
650: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 651: push (@Apache::inputtags::status,$status);
1.324 albertel 652:
1.159 albertel 653: my $expression='$external::datestatus="'.$status.'";';
654: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
655: &Apache::run::run($expression,$safeeval);
656: &Apache::lonxml::debug("Got $status");
1.324 albertel 657:
1.159 albertel 658: if (( $status eq 'CLOSED' ) ||
659: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 660: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 661: ( $status eq 'BANNED') ||
1.216 albertel 662: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 663: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 664: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 665: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
666: $style);
1.159 albertel 667: if ( $target eq "web" ) {
668: $result.= $head_tag_start.'</head>';
669: my $msg=$body_tag_start;
670: if ($status eq 'UNAVAILABLE') {
1.245 albertel 671: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 672: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 673: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 674: }
1.216 albertel 675: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 676: $msg.='The problem '.$accessmsg;
677: } elsif ($status eq 'UNCHECKEDOUT') {
678: $msg.=&checkout_msg;
1.252 albertel 679: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 680: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 681: } elsif ($status eq 'NOT_IN_A_SLOT') {
682: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 683: }
684: $result.=$msg.'<br />';
685: } elsif ($target eq 'tex') {
1.332 albertel 686: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
687: : '\begin{minipage}{\textwidth}';
688: $result.='\begin{document}\noindent \vskip 1 mm '.
689: $startminipage.'\vskip 0 mm';
1.159 albertel 690: if ($status eq 'UNAVAILABLE') {
1.211 albertel 691: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 692: } else {
1.211 albertel 693: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 694: }
695: }
1.324 albertel 696: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 697: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
698: $style);
1.324 albertel 699: if ($target eq 'web') {
700: $result .= $head_tag_start.'</head>';
701: $result .= $body_tag_start;
702: $result .= &Apache::bridgetask::proctor_validation_screen();
703: } elsif ($target eq 'grade') {
704: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
705: 'problem');
706: }
1.159 albertel 707: } elsif ($target eq 'web') {
708: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 709: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 710: $body_tag_start \n $form_tag_start".
1.227 albertel 711: '<input type="hidden" name="submitted" value="yes" />';
712: # create a page header and exit
1.284 albertel 713: if ($env{'request.state'} eq "construct") {
714: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 715: }
716: # if we are viewing someone else preserve that info
1.284 albertel 717: if (defined $env{'form.grade_symb'}) {
1.227 albertel 718: foreach my $field ('symb','courseid','domain','username') {
719: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 720: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 721: }
722: }
723: } elsif ($target eq 'tex') {
1.319 foxr 724: $result .= 'INSERTTEXFRONTMATTERHERE';
725:
1.99 sakharuk 726: }
1.159 albertel 727: } elsif ($target eq 'edit') {
728: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
729: &problem_edit_header();
1.226 albertel 730: $Apache::lonxml::warnings_error_header=
731: &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 732: my $temp=&Apache::edit::insertlist($target,$token);
733: $result.=$temp;
734: } elsif ($target eq 'modified') {
735: $result=$token->[4];
736: $result.=&Apache::edit::handle_insert();
737: } else {
738: # page_start returned a starting result, delete it if we don't need it
739: $result = '';
1.99 sakharuk 740: }
1.159 albertel 741: return $result;
1.9 albertel 742: }
743:
744: sub end_problem {
1.159 albertel 745: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 746: my $result;
1.310 foxr 747:
1.321 albertel 748: if (!$Apache::lonxml::metamode) {
749: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 750: $Apache::lonxml::post_evaluate=0;
1.321 albertel 751: }
1.319 foxr 752:
753: if ($target eq 'tex') {
1.321 albertel 754:
755: # Figure out the front matter and replace the
756: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
757: # this in end_problem because whether or not we display due
758: # dates depends on whether due dates have already been
759: # displayed in the problem parts.
760:
1.319 foxr 761: my $frontmatter = '';
762: my $startminipage = '';
763: if (not $env{'form.problem_split'}=~/yes/) {
764: $startminipage = '\begin{minipage}{\textwidth}';
765: }
766: my $id = $Apache::inputtags::part;
767: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
768: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
769: my @packages = split /,/,$packages;
770: my $allow_print_points = 0;
771: foreach my $partial_key (@packages) {
772: if ($partial_key=~m/^part_0$/) {
773: $allow_print_points=1;
774: }
775: }
776: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
777: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
778: if (lc($env{'course.'.$env{'request.course.id'}.
779: '.disableexampointprint'}) eq 'yes') {
780: $allow_print_points=0;
781: }
782: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
783: 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 ';
784: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
785: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
786:
787: # Figure out what the due date is and if we need to print
788: # it in the problem header. We have been logging the
789: # last due date written to file.
790:
791: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
792: my $duedate = POSIX::strftime("%c",localtime($duetime));
793: my $temp_file;
794: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
795:
796: # Figure out what the last printed due date is or set it
797: # to the epoch if no duedates have been printed.
798:
799: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
800: if (-e $filename) {
801: $temp_file = Apache::File->new($filename);
802: my @due_file = <$temp_file>;
803: $due_file_content = $due_file[$#due_file];
804: chomp $due_file_content;
805: }
806:
807: # We display the due date iff it is not the same as the last
808: # duedate in problem header ($due_file_content), and
809: # none of our parts displayed a duedate.
810: #
811: my $parts_with_displayduedate;
812: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
813: $parts_with_displayduedate =
814: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
815: } else {
816: $parts_with_displayduedate = 0;
817: }
818: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
819: $temp_file = Apache::File->new('>'.$filename);
820: print $temp_file "$duetime\n";
821: if (not $env{'request.symb'} =~ m/\.page_/) {
822: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
823: $frontmatter .= $begin_doc.
824: '\textit{Due date: '.$duedate.'} '.$toc_line;
825: } else {
826: $frontmatter.= $begin_doc.$toc_line;
827: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
828: }
829: } else {
830: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
831: }
832: } else {
833: if (not $env{'request.symb'} =~ m/\.page_/) {
834: $frontmatter .= $begin_doc.$toc_line;
835: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
836: } else {
837: $frontmatter .= '\vskip 1mm \\\\\\\\';
838: }
839: }
840: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
841: }
842:
1.159 albertel 843: my $status=$Apache::inputtags::status['-1'];
844: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
845: $target eq 'tex') {
1.249 albertel 846: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 847: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 848: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
849: &Apache::inputtags::grade;
1.324 albertel 850: } elsif ($status eq 'NEEDS_CHECKIN') {
851: # no need to grade, and don't want to hide data
1.249 albertel 852: } else {
853: # move any submission data to .hidden
854: &Apache::inputtags::hidealldata($Apache::inputtags::part);
855: }
1.159 albertel 856: } elsif ( ($target eq 'web' || $target eq 'tex') &&
857: $Apache::inputtags::part eq '0' &&
1.252 albertel 858: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 859: # if part is zero, no <part>s existed, so we need show the current
860: # grading status
861: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
862: $result.= $gradestatus;
863: }
864: if (
1.284 albertel 865: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 866: ($target eq 'answer') || ($target eq 'tex')
867: ) {
1.227 albertel 868: if ($target ne 'tex' &&
1.284 albertel 869: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 870: $result.="</form>";
871: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
1.159 albertel 872: }
873: if ($target eq 'web') {
1.281 albertel 874: $result.=&Apache::lonxml::xmlend().'</html>';
1.159 albertel 875: } elsif ($target eq 'tex') {
1.178 sakharuk 876: my $endminipage = '';
1.284 albertel 877: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 878: $endminipage = '\end{minipage}';
879: }
1.284 albertel 880: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 881: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 882: $result=~s/<\/html>//;
1.159 albertel 883: } else {
1.262 sakharuk 884: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 885: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 886: $result .= $endminipage.'\end{document} ';
887: } else {
888: $result .= '';
889: }
1.159 albertel 890: }
891: }
892: }
893: if ($target eq 'grade') {
894: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
895: &finalize_storage();
896: }
1.284 albertel 897: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
898: && $env{'form.answer_output_mode'} ne 'tex') {
1.294 albertel 899: $result.=&Apache::lonxml::xmlend().'</html>';
900: # normally we get it from above, but in CSTR
1.172 albertel 901: # we always show answer mode too.
1.159 albertel 902: }
903: } elsif ($target eq 'meta') {
904: if ($Apache::inputtags::part eq '0') {
1.179 albertel 905: @Apache::inputtags::response=();
1.159 albertel 906: $result=&Apache::response::mandatory_part_meta;
907: }
1.215 albertel 908: $result.=&Apache::response::meta_part_order();
1.258 albertel 909: $result.=&Apache::response::meta_response_order();
1.159 albertel 910: } elsif ($target eq 'edit') {
911: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 912: $result .= &problem_edit_footer();
1.320 albertel 913: } elsif ($target eq 'modified') {
914: $result .= $token->[2];
915: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 916: }
1.155 albertel 917:
1.284 albertel 918: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 919: &Apache::inputtags::check_for_duplicate_ids();
920: }
1.204 albertel 921:
922: &reset_problem_globals('problem');
1.159 albertel 923:
924: return $result;
1.48 albertel 925: }
926:
1.108 albertel 927:
1.48 albertel 928: sub start_library {
1.159 albertel 929: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
930: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 931: if ($$tagstack[0] eq 'library') {
932: &init_problem_globals('library');
933: $Apache::lonhomework::type='problem';
934: }
1.159 albertel 935: if ($target eq 'edit') {
936: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
937: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
938: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
939: &problem_edit_header();
940: my $temp=&Apache::edit::insertlist($target,$token);
941: $result.=$temp;
942: } elsif ($target eq 'modified') {
943: $result=$token->[4];
944: $result.=&Apache::edit::handle_insert();
1.340 ! albertel 945: } elsif (($target eq 'web' || $target eq 'webgrade')
! 946: && $$tagstack[0] eq 'library'
! 947: && $env{'request.state'} eq "construct" ) {
1.159 albertel 948: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
949: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
950: my $name=&get_resource_name($parstack,$safeeval);
951: my $rndseed=&setup_rndseed($safeeval);
952: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 953: $body_tag_start \n $form_tag_start".
1.159 albertel 954: '<input type="hidden" name="submitted" value="yes" />';
955: $result.=&problem_web_to_edit_header($rndseed);
956: }
957: return $result;
1.48 albertel 958: }
959:
960: sub end_library {
1.159 albertel 961: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
962: my $result='';
963: if ($target eq 'edit') {
964: $result=&problem_edit_footer();
965: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 966: $env{'request.state'} eq "construct") {
1.280 albertel 967: $result.='</form>'.&Apache::loncommon::endbodytag().
968: &Apache::lonxml::xmlend();
1.159 albertel 969: }
1.204 albertel 970: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 971: return $result;
1.197 www 972: }
973:
974: sub start_definetag {
1.326 albertel 975: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 976:
977: my $result;
978:
979: my $name = $token->[2]->{'name'};
1.326 albertel 980: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 981: if ($name=~/^\//) {
982: $result=
983: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
984: } else {
985: $result=
986: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
987: }
988: $skip=~s/\</\<\;/gs;
989: $skip=~s/\>/\>\;/gs;
990: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
991: return $result;
992: }
993:
994: sub end_definetag {
995: return '';
1.1 albertel 996: }
997:
998: sub start_block {
1.201 albertel 999: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1000:
1001: my $result;
1.1 albertel 1002:
1.339 albertel 1003: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1004: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1005: my $code = $token->[2]->{'condition'};
1.201 albertel 1006: if (defined($code)) {
1.137 albertel 1007: if (!$Apache::lonxml::default_homework_loaded) {
1008: &Apache::lonxml::default_homework_load($safeeval);
1009: }
1.131 albertel 1010: $result = &Apache::run::run($code,$safeeval);
1011: &Apache::lonxml::debug("block :$code: returned :$result:");
1012: } else {
1013: $result='1';
1014: }
1015: if ( ! $result ) {
1.201 albertel 1016: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1017: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1018: }
1019: $result='';
1020: } elsif ($target eq 'edit') {
1021: $result .=&Apache::edit::tag_start($target,$token);
1022: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1023: $token,40);
1024: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1025: } elsif ($target eq 'modified') {
1026: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1027: $safeeval,'condition');
1028: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1029: }
1.131 albertel 1030: return $result;
1.1 albertel 1031: }
1032:
1033: sub end_block {
1.167 www 1034: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1035: my $result;
1036: if ($target eq "edit") {
1037: $result.= &Apache::edit::tag_end($target,$token,'');
1038: }
1039: return $result;
1040: }
1041:
1042: sub start_languageblock {
1.201 albertel 1043: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1044:
1045: my $result;
1046:
1.339 albertel 1047: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1048: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1049: my $include = $token->[2]->{'include'};
1050: my $exclude = $token->[2]->{'exclude'};
1051: my %languages=&Apache::loncommon::display_languages();
1052: $result='1';
1053: if ($include) {
1054: $result='';
1055: foreach (split(/\,/,$include)) {
1056: if ($languages{$_}) { $result='1'; }
1057: }
1058: }
1059: if ($exclude) {
1060: foreach (split(/\,/,$exclude)) {
1061: if ($languages{$_}) { $result='0'; }
1062: }
1063: }
1064: if ( ! $result ) {
1065: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1066: $style);
1067: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1068: }
1069: $result='';
1.167 www 1070: } elsif ($target eq 'edit') {
1071: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1072: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1073: $token,40);
1.211 albertel 1074: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1075: $token,40);
1076: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1077: } elsif ($target eq 'modified') {
1078: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1079: $safeeval,'include',
1080: 'exclude');
1.167 www 1081: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1082: }
1083: return $result;
1084: }
1085:
1086: sub end_languageblock {
1.170 www 1087: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1088: my $result;
1.201 albertel 1089: if ($target eq "edit") {
1.170 www 1090: $result.= &Apache::edit::tag_end($target,$token,'');
1091: }
1092: return $result;
1093: }
1094:
1095: sub start_instructorcomment {
1.201 albertel 1096: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1097:
1098: my $result;
1099:
1.339 albertel 1100: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1101: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1102: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1103: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1104: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1105: $parser,$style);
1.170 www 1106: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1107: }
1108: $result='';
1109: } elsif ($target eq 'edit') {
1110: $result .=&Apache::edit::tag_start($target,$token);
1111: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1112: }
1113: return $result;
1114: }
1115:
1116: sub end_instructorcomment {
1.159 albertel 1117: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1118: my $result;
1119: if ($target eq "edit") {
1120: $result.= &Apache::edit::tag_end($target,$token,'');
1121: }
1122: return $result;
1.4 tsai 1123: }
1124:
1125: sub start_while {
1.326 albertel 1126: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1127:
1.160 albertel 1128: my $result;
1.339 albertel 1129: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1130: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1131: my $code = $token->[2]->{'condition'};
1.4 tsai 1132:
1.160 albertel 1133: push( @Apache::structuretags::whileconds, $code);
1134: if (!$Apache::lonxml::default_homework_loaded) {
1135: &Apache::lonxml::default_homework_load($safeeval);
1136: }
1137: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1138: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1139: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1140: push( @Apache::structuretags::whileline, $token->[5]);
1141: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1142: if ( $result ) {
1143: &Apache::lonxml::newparser($parser,\$bodytext);
1144: }
1145: } elsif ($target eq 'edit') {
1146: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1147: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1148: $token,40);
1149: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1150: } elsif ($target eq 'modified') {
1151: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1152: $safeeval,'condition');
1153: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1154: }
1.160 albertel 1155: return $result;
1.4 tsai 1156: }
1157:
1158: sub end_while {
1.159 albertel 1159: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1160: my $result;
1161:
1.339 albertel 1162: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1163: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1164: my $code = pop(@Apache::structuretags::whileconds);
1165: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1166: my $line = pop(@Apache::structuretags::whileline);
1167: my $return = &Apache::run::run($code,$safeeval);
1168: my $starttime=time;
1169: my $error=0;
1170: while ($return) {
1171: if (time-$starttime >
1172: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1173: #$return = 0; $error=1; next;
1.161 albertel 1174: }
1175: $result.=&Apache::scripttag::xmlparse($bodytext);
1176: $return = &Apache::run::run($code,$safeeval);
1177: }
1178: if ($error) {
1.270 albertel 1179: &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 1180: }
1181: } elsif ($target eq "edit") {
1182: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1183: }
1.160 albertel 1184: return $result;
1.1 albertel 1185: }
1.6 tsai 1186:
1.160 albertel 1187: # <randomlist show="1">
1.6 tsai 1188: # <tag1>..</tag1>
1189: # <tag2>..</tag2>
1190: # <tag3>..</tag3>
1.160 albertel 1191: # ...
1.6 tsai 1192: # </randomlist>
1193: sub start_randomlist {
1.326 albertel 1194: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1195: my $result;
1.339 albertel 1196: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1197: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1198: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1199: my $b_parser= HTML::LCParser->new(\$body);
1200: $b_parser->xml_mode(1);
1201: $b_parser->marked_sections(1);
1.159 albertel 1202: my $b_tok;
1203: my @randomlist;
1204: my $list_item;
1205: while($b_tok = $b_parser->get_token() ) {
1206: if($b_tok->[0] eq 'S') { # start tag
1207: # get content of the tag until matching end tag
1208: # get all text upto the matching tag
1209: # and push the content into @randomlist
1210: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1211: $b_parser);
1212: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1213: push(@randomlist,$list_item);
1214: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1215: # $list_item</b>";
1216: }
1217: if($b_tok->[0] eq 'T') { # text
1218: # what to do with text in between tags?
1219: # print "<b>TEXT $b_tok->[1]</b><br />";
1220: }
1221: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1222: # print "<b>END-TAG $b_tok->[1]</b><br />";
1223: # }
1224: }
1.303 albertel 1225: if (@randomlist) {
1226: my @idx_arr = (0 .. $#randomlist);
1227: &Apache::structuretags::shuffle(\@idx_arr);
1228: my $bodytext = '';
1229: my $show=$#randomlist;
1230: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1231: $showarg--;
1232: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1233: for(0 .. $show) {
1234: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1235: }
1236: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1237: }
1238: } elsif ($target eq 'edit' ) {
1239: $result .=&Apache::edit::tag_start($target,$token);
1240: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1241: $token,5);
1242: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1243: } elsif ($target eq 'modified' ) {
1244: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1245: $safeeval,'show');
1246: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1247: }
1248: return $result;
1.7 tsai 1249: }
1250:
1251: sub shuffle {
1252: my $a=shift;
1253: my $i;
1.303 albertel 1254: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1255: &Apache::response::pushrandomnumber();
1.159 albertel 1256: for($i=@$a;--$i;) {
1257: my $j=int(&Math::Random::random_uniform() * ($i+1));
1258: next if $i == $j;
1259: @$a[$i,$j] = @$a[$j,$i];
1260: }
1.251 albertel 1261: &Apache::response::poprandomnumber();
1.7 tsai 1262: }
1.6 tsai 1263: }
1264:
1265: sub end_randomlist {
1.159 albertel 1266: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1267: my $result;
1268: if ($target eq 'edit' ) {
1269: $result=&Apache::edit::tag_end($target,$token,
1270: 'End Randomly Parsed Block');
1271: }
1272: return $result;
1.6 tsai 1273: }
1274:
1.283 albertel 1275: sub ordered_show_check {
1276: my $last_part=$Apache::inputtags::partlist[-2];
1277: my $in_order=
1278: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1279: my $in_order_show=1;
1280: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1281: $in_order_show=&Apache::response::check_status($last_part);
1282: }
1283: return $in_order_show;
1284: }
1285:
1.11 albertel 1286: sub start_part {
1.326 albertel 1287: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1288: if (!$Apache::lonxml::metamode) {
1289: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1290: # duedates.
1291: }
1.159 albertel 1292: my $result='';
1293: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1294: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1295: $Apache::inputtags::part=$id;
1.177 albertel 1296: push(@Apache::inputtags::partlist,$id);
1297: @Apache::inputtags::response=();
1.159 albertel 1298: @Apache::inputtags::previous=();
1299: @Apache::inputtags::previous_version=();
1.241 albertel 1300: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1301: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1302: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1303: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1304: my $in_order_show=&ordered_show_check();
1.214 albertel 1305: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1306: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1307: &Apache::run::run($expression,$safeeval);
1.159 albertel 1308:
1309: if ($target eq 'meta') {
1.224 www 1310: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1311: return &Apache::response::mandatory_part_meta.
1312: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1313: } elsif ($target eq 'web' || $target eq 'grade' ||
1314: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1315: if ($hidden || !$in_order_show) {
1.326 albertel 1316: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1317: } else {
1318: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1319: push (@Apache::inputtags::status,$status);
1320: my $expression='$external::datestatus="'.$status.'";';
1321: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1322: &Apache::run::run($expression,$safeeval);
1.284 albertel 1323: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1324: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1325: }
1.216 albertel 1326: if (( $status eq 'CLOSED' ) ||
1327: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1328: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1329: ( $status eq 'BANNED') ||
1330: ( $status eq 'UNAVAILABLE') ||
1331: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1332: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1333: $style);
1.159 albertel 1334: if ( $target eq "web" ) {
1.211 albertel 1335: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1336: } elsif ( $target eq 'tex' ) {
1.284 albertel 1337: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1338: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1339: } else {
1.211 albertel 1340: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1341: }
1.159 albertel 1342: }
1343: } else {
1344: if ($target eq 'tex') {
1.284 albertel 1345: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1346: if ($$tagstack[-2] eq 'td') {
1347: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1348: } else {
1349: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1350: }
1.195 sakharuk 1351: }
1.159 albertel 1352: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1353: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1354: my @allkeys = split /,/,$allkeys;
1355: my $allow_print_points = 0;
1356: foreach my $partial_key (@allkeys) {
1.230 albertel 1357: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1358: if ($1 ne '0') {$allow_print_points=1;}
1359: }
1360: }
1.275 albertel 1361: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1362: if (defined($maxtries) && $maxtries < 0) {
1363: $allow_print_points=0;
1364: }
1.302 albertel 1365: if (lc($env{'course.'.$env{'request.course.id'}.
1366: '.disableexampointprint'}) eq 'yes') {
1367: $allow_print_points=0;
1368: }
1.222 sakharuk 1369: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1370: } elsif ($target eq 'web') {
1371: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1372: }
1373: }
1374: }
1375: } elsif ($target eq 'edit') {
1376: $result.=&Apache::edit::tag_start($target,$token);
1377: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1378: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1379: ' '.
1380: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1381: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1382: } elsif ($target eq 'modified') {
1383: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1384: $safeeval,'id','display');
1.159 albertel 1385: if ($constructtag) {
1.225 albertel 1386: #limiting ids to only letters numbers, and space
1.224 www 1387: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1388: $result = &Apache::edit::rebuild_tag($token);
1389: $result.=&Apache::edit::handle_insert();
1390: }
1391: }
1392: return $result;
1.11 albertel 1393: }
1394:
1395: sub end_part {
1.159 albertel 1396: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1397: &Apache::lonxml::debug("in end_part $target ");
1398: my $status=$Apache::inputtags::status['-1'];
1399: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1400: my $in_order_show=&ordered_show_check();
1.321 albertel 1401: my $result;
1402: if (!$Apache::lonxml::metamode) {
1403: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1404: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1405: }
1.312 albertel 1406: if ($target eq 'grade') {
1.249 albertel 1407: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1408: !$hidden && $in_order_show) {
1.311 foxr 1409: $result.=&Apache::inputtags::grade;
1.249 albertel 1410: } else {
1411: # move any submission data to .hidden
1412: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1413: }
1.283 albertel 1414: } elsif (($target eq 'web' || $target eq 'tex') &&
1415: !$hidden && $in_order_show) {
1.159 albertel 1416: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1417: $target);
1.212 albertel 1418: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1419: $gradestatus='';
1420: }
1.311 foxr 1421: $result.=$gradestatus;
1.265 sakharuk 1422: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1423: } elsif ($target eq 'edit') {
1.311 foxr 1424: $result.=&Apache::edit::end_table();
1.322 albertel 1425: } elsif ($target eq 'modified') {
1426: $result .= $token->[2];
1427: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 1428: }
1429: pop @Apache::inputtags::status;
1430: $Apache::inputtags::part='';
1.295 albertel 1431: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1432: return $result;
1.11 albertel 1433: }
1.1 albertel 1434:
1.25 albertel 1435: sub start_preduedate {
1.326 albertel 1436: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1437: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1438: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1439: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1440: if (!$Apache::lonhomework::scantronmode &&
1441: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1442: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1443: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1444: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1445: }
1.24 albertel 1446: }
1.159 albertel 1447: return '';
1.24 albertel 1448: }
1449:
1.25 albertel 1450: sub end_preduedate {
1.159 albertel 1451: return '';
1.24 albertel 1452: }
1453:
1.25 albertel 1454: sub start_postanswerdate {
1.326 albertel 1455: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1456: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade') {
1.300 albertel 1457: if ($Apache::lonhomework::scantronmode ||
1458: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.326 albertel 1459: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1460: }
1461: } elsif ($target eq 'tex') {
1.326 albertel 1462: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1463: }
1464: return '';
1.24 albertel 1465: }
1466:
1.25 albertel 1467: sub end_postanswerdate {
1.159 albertel 1468: return '';
1.24 albertel 1469: }
1470:
1.25 albertel 1471: sub start_notsolved {
1.326 albertel 1472: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1473: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1474: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1475: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1476: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1477: if ($gradestatus =~ /^correct/ &&
1478: &Apache::response::show_answer()) {
1.159 albertel 1479: &Apache::lonxml::debug("skipping");
1.326 albertel 1480: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1481: }
1.24 albertel 1482: }
1.159 albertel 1483: return '';
1.24 albertel 1484: }
1485:
1.25 albertel 1486: sub end_notsolved {
1.159 albertel 1487: return '';
1.24 albertel 1488: }
1489:
1490: sub start_solved {
1.326 albertel 1491: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1492: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1493: $target eq 'tex') {
1494: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1495: if ($gradestatus !~ /^correct/ ||
1496: !&Apache::response::show_answer()) {
1.326 albertel 1497: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1498: }
1.24 albertel 1499: }
1.159 albertel 1500: return '';
1.24 albertel 1501: }
1502:
1503: sub end_solved {
1.248 albertel 1504: return '';
1505: }
1506:
1507: sub start_problemtype {
1.326 albertel 1508: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1509: my $result;
1.339 albertel 1510: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1511: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1512: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1513: if (!defined($mode)) { $mode='show'; }
1514: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1515: my $found=0;
1516: foreach my $type (split(',',$for)) {
1517: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1518: }
1519: if ($mode eq 'show' && !$found) {
1.326 albertel 1520: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1521: }
1522: if ($mode eq 'hide' && $found) {
1.326 albertel 1523: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1524: }
1525: } elsif ($target eq 'edit') {
1526: $result .=&Apache::edit::tag_start($target,$token);
1527: $result.=&Apache::edit::select_arg('Mode:','mode',
1528: [['show','Show'],
1529: ['hide','Hide']]
1530: ,$token);
1531: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1532: [ ['exam','Exam/Quiz Problem'],
1533: ['survey','Survey'],
1534: ['problem','Homework Problem'] ]
1535: ,$token);
1536: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1537: } elsif ($target eq 'modified') {
1538: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1539: $safeeval,'mode','for');
1540: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1541: }
1542: return $result;
1543: }
1544:
1545: sub end_problemtype {
1.159 albertel 1546: return '';
1.24 albertel 1547: }
1.34 albertel 1548:
1549: sub start_startouttext {
1.159 albertel 1550: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1551: my @result=(''.'');
1552: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1553: return (@result);
1.34 albertel 1554: }
1.159 albertel 1555:
1.34 albertel 1556: sub end_startouttext {
1.326 albertel 1557: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1558: my $result='';
1559: my $text='';
1560:
1561: if ($target eq 'edit') {
1.326 albertel 1562: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1563: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1564: <td>".&mt('Delete:').
1.159 albertel 1565: &Apache::edit::deletelist($target,$token)
1566: ."</td>
1.42 albertel 1567: <td>".
1.159 albertel 1568: &Apache::edit::insertlist($target,$token).
1569: &Apache::edit::end_row().
1570: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1571: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1572: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1573: }
1574: if ($target eq 'modified') {
1.219 albertel 1575: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1576: }
1577: if ($target eq 'tex') {
1578: $result .= '\noindent ';
1579: }
1580: return $result;
1.34 albertel 1581: }
1.159 albertel 1582:
1.34 albertel 1583: sub start_endouttext {
1.159 albertel 1584: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1585: my $result='';
1586: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1587: if ($target eq "modified") {
1588: $result='<endouttext />'.
1589: &Apache::edit::handle_insertafter('startouttext'); }
1590: return $result;
1.34 albertel 1591: }
1.159 albertel 1592:
1.34 albertel 1593: sub end_endouttext {
1.159 albertel 1594: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1595: my @result=('','');
1596: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1597: return (@result);
1.34 albertel 1598: }
1.159 albertel 1599:
1.45 albertel 1600: sub delete_startouttext {
1.326 albertel 1601: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1602: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1603: my $text=$$parser['-1']->get_text("/endouttext");
1604: my $ntoken=$$parser['-1']->get_token();
1605: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1606: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1607: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1608: # they did the last time round
1609: &Apache::lonxml::increasedepth($ntoken);
1610: &Apache::lonxml::decreasedepth($ntoken);
1611: return 1;
1.193 www 1612: }
1613:
1614: sub start_simpleeditbutton {
1615: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1616: my $result='';
1.284 albertel 1617: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1618: ($target eq 'web') &&
1.330 albertel 1619: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1620: my $url=$env{'request.noversionuri'};
1.193 www 1621: $url=~s/\?.*$//;
1.278 albertel 1622: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1623: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1624: '<a href="'.$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 1625: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1626: }
1627: return $result;
1628: }
1629:
1630: sub end_simpleeditbutton {
1631: return '';
1.45 albertel 1632: }
1.34 albertel 1633:
1.1 albertel 1634: 1;
1635: __END__
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