Annotation of loncom/homework/structuretags.pm, revision 1.332.2.2
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.332.2.2! albertel 4: # $Id: structuretags.pm,v 1.332.2.1 2006/03/28 18:31:37 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,$style);
1.332.2.2! albertel 47: if ($target eq 'web' || $target eq 'webgrade') {
1.200 albertel 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();
1.332.2.1 albertel 116: my $css_href = &Apache::lonnet::EXT('resource.0.cssfile');
117: if ($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'})) {
1.281 albertel 159: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="POST" action="';
1.284 albertel 160: my $uri=$env{'request.uri'};
161: if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($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();
1.284 albertel 195: if ($env{'request.state'} eq "construct" || $symb eq '' ||
1.247 albertel 196: $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 197: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 198: ['rndseed']);
1.284 albertel 199: $rndseed=$env{'form.rndseed'};
1.159 albertel 200: if (!$rndseed) {
1.162 albertel 201: $rndseed=$Apache::lonhomework::history{'rndseed'};
202: if (!$rndseed) {
203: $rndseed=time;
204: }
1.284 albertel 205: $env{'form.rndseed'}=$rndseed;
1.162 albertel 206: }
1.284 albertel 207: if ($env{'form.resetdata'} eq &mt('New Problem Variation') ||
208: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 209: srand(time);
210: $rndseed=int(rand(2100000000));
1.284 albertel 211: $env{'form.rndseed'}=$rndseed;
212: delete($env{'form.resetdata'});
213: delete($env{'form.newrandomization'});
1.159 albertel 214: }
1.187 albertel 215: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 216: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 217: }
1.247 albertel 218: if ($Apache::lonhomework::history{'resource.CODE'}) {
219: $rndseed=&Apache::lonnet::rndseed();
220: }
1.221 albertel 221: if ($safeeval) {
222: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 223: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 224: }
1.159 albertel 225: }
226: return $rndseed;
1.105 albertel 227: }
228:
1.268 albertel 229: sub remember_problem_state {
230: return '
1.284 albertel 231: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
232: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
233: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 234: }
235:
1.105 albertel 236: sub problem_edit_header {
1.268 albertel 237: return '<input type="hidden" name="submitted" value="edit" />'.
238: &Apache::structuretags::remember_problem_state().'
1.210 albertel 239: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 240: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
1.328 albertel 241: <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 242: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
243: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
244: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.260 albertel 245: &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
246: .'</td></tr></table>'.
1.282 albertel 247: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 248: }
249:
250: sub problem_edit_footer {
1.210 albertel 251: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 252: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
253: &Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).
1.280 albertel 254: "\n</form>\n".&Apache::loncommon::endbodytag()."\n</html>";
1.105 albertel 255: }
256:
1.235 albertel 257: sub option {
258: my ($value,$name) = @_;
259: my $result ="<option value='".$value."' ";
1.284 albertel 260: if ($env{'form.'.$name} eq $value) {
1.235 albertel 261: $result.=" selected='on' ";
262: }
263: $result.='>';
264: return $result;
265: }
266:
1.105 albertel 267: sub problem_web_to_edit_header {
1.159 albertel 268: my ($rndseed)=@_;
1.313 albertel 269: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
270: if (!$Apache::lonhomework::parsing_a_task) {
271: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
272: }
273: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 274: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
275: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 276: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 277: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 278: $rndseed.'"
1.270 albertel 279: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 280: <label><input type="checkbox" name="showallfoils" ';
1.315 albertel 281: my $show_all_foils_text =
282: ($Apache::lonhomework::parsing_a_task) ?
283: &mt(' Show All Instances')
284: : &mt(' Show All Foils');
285:
1.284 albertel 286: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.315 albertel 287: $result.= ' />'.$show_all_foils_text.
1.228 www 288: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.281 albertel 289: '</label><hr />';
1.313 albertel 290: if (!$Apache::lonhomework::parsing_a_task) {
291: $result.="
1.235 albertel 292: <nobr>
293: Problem Status:
294: <select name='problemstate'>
1.270 albertel 295: <option value=''></option>
1.235 albertel 296: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
297: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
298: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
299: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
300: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
301: </select>
302: </nobr>
303: <nobr>
304: Problem Type:
305: <select name='problemtype'>
1.270 albertel 306: <option value=''></option>
1.242 albertel 307: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
308: ".&option('problem','problemtype').&mt("Homework problem")."</option>
309: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 310: </select>
311: </nobr>
312: <nobr>
313: Feedback Mode:
314: <select name='problemstatus'>
315: <option value=''></option>
1.242 albertel 316: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
317: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 318: </select>
319: </nobr>
1.242 albertel 320: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 321: <hr />";
1.313 albertel 322: my $numtoanalyze=$env{'form.numtoanalyze'};
323: if (!$numtoanalyze) { $numtoanalyze=20; }
324: $result.= '<input type="submit" name="problemmode" value='.
325: &mt('"Calculate answers').'" /> for
1.136 albertel 326: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 327: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
328: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 329: '',undef,undef,300).
1.210 albertel 330: '<hr />';
1.313 albertel 331: }
1.159 albertel 332: return $result;
1.48 albertel 333: }
334:
1.65 albertel 335: sub initialize_storage {
1.159 albertel 336: %Apache::lonhomework::results=();
1.162 albertel 337: %Apache::lonhomework::history=();
1.159 albertel 338: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.284 albertel 339: if ($env{'request.state'} eq 'construct' || $symb eq '') {
1.159 albertel 340: %Apache::lonhomework::history=
1.284 albertel 341: &Apache::lonnet::tmprestore($env{'request.uri'},'',$domain,$name);
1.159 albertel 342: my ($temp)=keys %Apache::lonhomework::history ;
343: &Apache::lonxml::debug("Return message of $temp");
344: } else {
345: %Apache::lonhomework::history=
346: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
347: }
348: #ignore error conditions
1.67 albertel 349: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 350: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 351: }
352:
353: # -------------------------------------------------------------finalize_storage
354: # Stores away the result has to a student's environment
355: # checks form.grade_ for specific values, other wises stores
356: # to the running users environment
1.285 raeburn 357: # Will increment totals for attempts, students, and corrects
358: # if running user has student role.
1.65 albertel 359: sub finalize_storage {
1.159 albertel 360: my $result;
1.289 albertel 361: if (%Apache::lonhomework::results) {
1.323 albertel 362: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
363: delete(@Apache::lonhomework::results{@remove});
1.159 albertel 364: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.284 albertel 365: if ($env{'request.state'} eq 'construct' || $symb eq '') {
366: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 367: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.284 albertel 368: $env{'request.uri'},'',$domain,$name);
1.159 albertel 369: &Apache::lonxml::debug('Construct Store return message:'.$result);
370: } else {
371: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
372: $symb,$courseid,$domain,$name);
373: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 374: if ($env{'request.role'} =~/^st/) {
375: &store_aggregates($symb,$courseid);
376: }
1.159 albertel 377: }
1.323 albertel 378: } else {
379: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 380: }
1.159 albertel 381: return $result;
1.65 albertel 382: }
1.289 albertel 383: use Data::Dumper;
1.65 albertel 384:
1.285 raeburn 385: # -------------------------------------------------------------store_aggregates
386: # Sends hash of values to be incremented in nohist_resourcetracker.db
387: # for the course. Increments total number of attempts, unique students
388: # and corrects for each part for an instance of a problem, as appropriate.
389: sub store_aggregates {
390: my ($symb,$courseid) = @_;
1.286 albertel 391: my %aggregate;
392: my @parts;
1.288 albertel 393: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
394: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 395: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 396: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 397: push(@parts, $1);
1.285 raeburn 398: }
399: }
1.286 albertel 400: foreach my $part (@parts) {
401: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
402: eq 'APPROX_ANS' ||
403: $Apache::lonhomework::results{'resource.'.$part.'.award'}
404: eq 'EXACT_ANS') {
1.287 albertel 405: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 406: }
1.286 albertel 407: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 408: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 409: } else {
1.293 albertel 410: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 411: if ($last_reset) {
1.293 albertel 412: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 413: $aggregate{$symb."\0".$part."\0users"} = 1;
414: }
415: }
1.285 raeburn 416: }
1.287 albertel 417: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 418: }
1.292 raeburn 419: if (keys (%aggregate) > 0) {
1.289 albertel 420: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 421: $cdomain,$cname);
422: }
423: }
1.289 albertel 424:
1.65 albertel 425: sub checkout_msg {
1.211 albertel 426: my %lt=&Apache::lonlocal::texthash(
427: 'resource'=>'The resource needs to be checked out',
428: '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.',
429: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
430: 'checkout'=>'Check out Exam for Viewing',
431: 'checkout?'=>'Check out Exam?');
1.159 albertel 432: return (<<ENDCHECKOUT);
1.211 albertel 433: <h2>$lt{'resource'}</h2>
434: <p>$lt{'id_expln'}</p>
435: <font color="red">
436: <p>$lt{'warning'}</p>
1.91 albertel 437: </font>
1.284 albertel 438: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.91 albertel 439: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 440: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 441: </form>
442: ENDCHECKOUT
443: }
444:
1.252 albertel 445: sub firstaccess_msg {
1.253 albertel 446: my ($time,$symb)=@_;
447: my ($map)=&Apache::lonnet::decode_symb($symb);
448: my $foldertitle=&Apache::lonnet::gettitle($map);
449: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.252 albertel 450: return (<<ENDCHECKOUT);
1.253 albertel 451: <h2>The resources in "$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 452: <form name="markaccess" method="POST" action="$env{'request.uri'}">
1.252 albertel 453: <input type="hidden" name="markaccess" value="yes" />
454: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
455: </form>
456: ENDCHECKOUT
457: }
458:
1.204 albertel 459: sub init_problem_globals {
460: my ($type)=@_;
461: #initialize globals
1.308 foxr 462: # For problems, we start out in part 0 (outside a <part> tag).
463: # and part 0 is used to describe the main body of the <problem>
464: #
1.204 albertel 465: if ($type eq 'problem') {
466: $Apache::inputtags::part='0';
467: @Apache::inputtags::partlist=('0');
1.266 albertel 468: $Apache::lonhomework::problemstatus=&get_problem_status('0');
469: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 470:
1.266 albertel 471: } elsif ($type eq 'library') {
1.204 albertel 472: $Apache::inputtags::part='';
473: @Apache::inputtags::partlist=();
474: $Apache::lonhomework::problemstatus='';
1.266 albertel 475: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 476:
1.304 albertel 477: } elsif ($type eq 'Task') {
478: $Apache::inputtags::part='0';
479: @Apache::inputtags::partlist=('0');
480: $Apache::lonhomework::problemstatus='';
481: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 482: }
483: @Apache::inputtags::responselist = ();
484: @Apache::inputtags::importlist = ();
485: @Apache::inputtags::previous=();
486: @Apache::inputtags::previous_version=();
487: $Apache::structuretags::printanswer='No';
488: @Apache::structuretags::whileconds=();
489: @Apache::structuretags::whilebody=();
490: @Apache::structuretags::whileline=();
491: $Apache::lonhomework::scantronmode=0;
492: undef($Apache::lonhomework::name);
493:
494: }
495:
496: sub reset_problem_globals {
497: my ($type)=@_;
498: undef(%Apache::lonhomework::history);
499: undef(%Apache::lonhomework::results);
500: undef($Apache::inputtags::part);
1.208 albertel 501: #don't undef this, lonhomework.pm takes care of this, we use this to
502: #detect if we try to do 2 problems in one file
503: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 504: undef($Apache::lonhomework::name);
505: }
506:
1.241 albertel 507: sub set_problem_state {
1.240 albertel 508: my ($part)=@_;
1.284 albertel 509: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 510: $Apache::lonhomework::history{"resource.$part.solved"}=
511: 'correct_by_student';
512: }
513: }
514:
1.241 albertel 515: sub get_problem_status {
516: my ($part)=@_;
1.267 albertel 517: my $problem_status;
1.284 albertel 518: if ($env{'request.state'} eq 'construct' &&
519: defined($env{'form.problemstatus'})) {
520: $problem_status=$env{'form.problemstatus'};
1.267 albertel 521: } else {
522: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
523: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 524: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 525: }
526: return $problem_status;
527: }
528:
1.9 albertel 529: sub start_problem {
1.326 albertel 530: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 531:
1.311 foxr 532: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 533: if (!$Apache::lonxml::metamode) {
534: &Apache::lonxml::startredirection();
535: }
1.311 foxr 536:
1.308 foxr 537: # Problems don't nest and we don't allow more than one <problem> in
538: # a .problem file.
539: #
1.184 albertel 540: if ( $Apache::inputtags::part ne '' ||
541: $Apache::lonhomework::parsing_a_problem) {
542: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 543: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 544: return '';
545: }
1.184 albertel 546:
547: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 548: &init_problem_globals('problem');
1.166 albertel 549:
1.284 albertel 550: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 551: $Apache::lonhomework::scantronmode=1;
552: }
1.161 albertel 553:
1.246 albertel 554: &initialize_storage();
1.159 albertel 555: if ($target ne 'analyze') {
556: if ($target eq 'web') {
557: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 558: }
1.284 albertel 559: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 560: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 561: if (($env{'request.state'} eq 'construct') &&
562: defined($env{'form.problemtype'})) {
563: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 564: }
1.332 albertel 565: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 566: }
1.164 albertel 567: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 568: my $uri=$env{'request.uri'};
1.159 albertel 569: if ($uri=~/\.(\w+)$/) {
570: $Apache::lonhomework::type=$1;
571: &Apache::lonxml::debug("Using type of $1");
572: } else {
573: $Apache::lonhomework::type='problem';
574: &Apache::lonxml::debug("Using default type, problem, :$uri:");
575: }
1.87 albertel 576: }
1.301 albertel 577: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 578:
1.159 albertel 579: #added vars to the scripting enviroment
1.213 albertel 580: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 581: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 582: &Apache::run::run($expression,$safeeval);
1.159 albertel 583: my $status;
584: my $accessmsg;
585:
586: #should get back a <html> or the neccesary stuff to start XML/MathML
587: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
588: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.284 albertel 589: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 590:
591: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
592: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
593: $target eq 'tex') {
594: #handle exam checkout
595: if ($Apache::lonhomework::type eq 'exam') {
596: my $token=
597: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 598: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 599: $token=&Apache::lonxml::maketoken();
600: $Apache::lonhomework::history{"resource.0.outtoken"}=
601: $token;
602: }
603: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 604: }
1.284 albertel 605: if ($env{'form.markaccess'}) {
1.252 albertel 606: &Apache::lonnet::set_first_access('map');
607: }
1.159 albertel 608: #handle rand seed in construction space
609: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 610: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 611: if ($env{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 612: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
613: $rndseed.'" />'.
614: '<input type="submit" name="resetdata"
1.211 albertel 615: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 616: '<input type="hidden" name="username"
1.284 albertel 617: value="'.$env{'form.username'}.'" />';
618: if ($env{'user.adv'}) {
1.267 albertel 619: $form_tag_start.=
1.300 albertel 620: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 621: if (defined($env{'form.showallfoils'})) {
1.267 albertel 622: $form_tag_start.='checked="on"';
623: }
1.300 albertel 624: $form_tag_start.= ' />'.&mt(' Show All Foils').
625: '</label>';
1.267 albertel 626: }
627: $form_tag_start.='<hr />';
1.162 albertel 628: }
1.324 albertel 629:
630: ($status,$accessmsg,my $slot_name,my $slot) =
631: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 632: push (@Apache::inputtags::status,$status);
1.324 albertel 633:
1.159 albertel 634: my $expression='$external::datestatus="'.$status.'";';
635: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
636: &Apache::run::run($expression,$safeeval);
637: &Apache::lonxml::debug("Got $status");
1.324 albertel 638:
1.159 albertel 639: if (( $status eq 'CLOSED' ) ||
640: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 641: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 642: ( $status eq 'BANNED') ||
1.216 albertel 643: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 644: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 645: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 646: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
647: $style);
1.159 albertel 648: if ( $target eq "web" ) {
649: $result.= $head_tag_start.'</head>';
650: my $msg=$body_tag_start;
651: if ($status eq 'UNAVAILABLE') {
1.245 albertel 652: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 653: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 654: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 655: }
1.216 albertel 656: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 657: $msg.='The problem '.$accessmsg;
658: } elsif ($status eq 'UNCHECKEDOUT') {
659: $msg.=&checkout_msg;
1.252 albertel 660: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 661: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 662: } elsif ($status eq 'NOT_IN_A_SLOT') {
663: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 664: }
665: $result.=$msg.'<br />';
666: } elsif ($target eq 'tex') {
1.332 albertel 667: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
668: : '\begin{minipage}{\textwidth}';
669: $result.='\begin{document}\noindent \vskip 1 mm '.
670: $startminipage.'\vskip 0 mm';
1.159 albertel 671: if ($status eq 'UNAVAILABLE') {
1.211 albertel 672: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 673: } else {
1.211 albertel 674: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 675: }
676: }
1.324 albertel 677: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 678: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
679: $style);
1.324 albertel 680: if ($target eq 'web') {
681: $result .= $head_tag_start.'</head>';
682: $result .= $body_tag_start;
683: $result .= &Apache::bridgetask::proctor_validation_screen();
684: } elsif ($target eq 'grade') {
685: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
686: 'problem');
687: }
1.159 albertel 688: } elsif ($target eq 'web') {
689: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 690: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 691: $body_tag_start \n $form_tag_start".
1.227 albertel 692: '<input type="hidden" name="submitted" value="yes" />';
693: # create a page header and exit
1.284 albertel 694: if ($env{'request.state'} eq "construct") {
695: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 696: }
697: # if we are viewing someone else preserve that info
1.284 albertel 698: if (defined $env{'form.grade_symb'}) {
1.227 albertel 699: foreach my $field ('symb','courseid','domain','username') {
700: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 701: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 702: }
703: }
704: } elsif ($target eq 'tex') {
1.319 foxr 705: $result .= 'INSERTTEXFRONTMATTERHERE';
706:
1.99 sakharuk 707: }
1.159 albertel 708: } elsif ($target eq 'edit') {
709: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
710: &problem_edit_header();
1.226 albertel 711: $Apache::lonxml::warnings_error_header=
712: &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 713: my $temp=&Apache::edit::insertlist($target,$token);
714: $result.=$temp;
715: } elsif ($target eq 'modified') {
716: $result=$token->[4];
717: $result.=&Apache::edit::handle_insert();
718: } else {
719: # page_start returned a starting result, delete it if we don't need it
720: $result = '';
1.99 sakharuk 721: }
1.159 albertel 722: return $result;
1.9 albertel 723: }
724:
725: sub end_problem {
1.159 albertel 726: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 727: my $result;
1.310 foxr 728:
1.321 albertel 729: if (!$Apache::lonxml::metamode) {
730: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 731: $Apache::lonxml::post_evaluate=0;
1.321 albertel 732: }
1.319 foxr 733:
734: if ($target eq 'tex') {
1.321 albertel 735:
736: # Figure out the front matter and replace the
737: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
738: # this in end_problem because whether or not we display due
739: # dates depends on whether due dates have already been
740: # displayed in the problem parts.
741:
1.319 foxr 742: my $frontmatter = '';
743: my $startminipage = '';
744: if (not $env{'form.problem_split'}=~/yes/) {
745: $startminipage = '\begin{minipage}{\textwidth}';
746: }
747: my $id = $Apache::inputtags::part;
748: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
749: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
750: my @packages = split /,/,$packages;
751: my $allow_print_points = 0;
752: foreach my $partial_key (@packages) {
753: if ($partial_key=~m/^part_0$/) {
754: $allow_print_points=1;
755: }
756: }
757: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
758: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
759: if (lc($env{'course.'.$env{'request.course.id'}.
760: '.disableexampointprint'}) eq 'yes') {
761: $allow_print_points=0;
762: }
763: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
764: 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 ';
765: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
766: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
767:
768: # Figure out what the due date is and if we need to print
769: # it in the problem header. We have been logging the
770: # last due date written to file.
771:
772: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
773: my $duedate = POSIX::strftime("%c",localtime($duetime));
774: my $temp_file;
775: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
776:
777: # Figure out what the last printed due date is or set it
778: # to the epoch if no duedates have been printed.
779:
780: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
781: if (-e $filename) {
782: $temp_file = Apache::File->new($filename);
783: my @due_file = <$temp_file>;
784: $due_file_content = $due_file[$#due_file];
785: chomp $due_file_content;
786: }
787:
788: # We display the due date iff it is not the same as the last
789: # duedate in problem header ($due_file_content), and
790: # none of our parts displayed a duedate.
791: #
792: my $parts_with_displayduedate;
793: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
794: $parts_with_displayduedate =
795: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
796: } else {
797: $parts_with_displayduedate = 0;
798: }
799: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
800: $temp_file = Apache::File->new('>'.$filename);
801: print $temp_file "$duetime\n";
802: if (not $env{'request.symb'} =~ m/\.page_/) {
803: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
804: $frontmatter .= $begin_doc.
805: '\textit{Due date: '.$duedate.'} '.$toc_line;
806: } else {
807: $frontmatter.= $begin_doc.$toc_line;
808: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
809: }
810: } else {
811: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
812: }
813: } else {
814: if (not $env{'request.symb'} =~ m/\.page_/) {
815: $frontmatter .= $begin_doc.$toc_line;
816: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
817: } else {
818: $frontmatter .= '\vskip 1mm \\\\\\\\';
819: }
820: }
821: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
822: }
823:
1.159 albertel 824: my $status=$Apache::inputtags::status['-1'];
825: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
826: $target eq 'tex') {
1.249 albertel 827: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 828: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 829: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
830: &Apache::inputtags::grade;
1.324 albertel 831: } elsif ($status eq 'NEEDS_CHECKIN') {
832: # no need to grade, and don't want to hide data
1.249 albertel 833: } else {
834: # move any submission data to .hidden
835: &Apache::inputtags::hidealldata($Apache::inputtags::part);
836: }
1.159 albertel 837: } elsif ( ($target eq 'web' || $target eq 'tex') &&
838: $Apache::inputtags::part eq '0' &&
1.252 albertel 839: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 840: # if part is zero, no <part>s existed, so we need show the current
841: # grading status
842: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
843: $result.= $gradestatus;
844: }
845: if (
1.284 albertel 846: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 847: ($target eq 'answer') || ($target eq 'tex')
848: ) {
1.227 albertel 849: if ($target ne 'tex' &&
1.284 albertel 850: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 851: $result.="</form>";
852: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
1.159 albertel 853: }
854: if ($target eq 'web') {
1.281 albertel 855: $result.=&Apache::lonxml::xmlend().'</html>';
1.159 albertel 856: } elsif ($target eq 'tex') {
1.178 sakharuk 857: my $endminipage = '';
1.284 albertel 858: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 859: $endminipage = '\end{minipage}';
860: }
1.284 albertel 861: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 862: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 863: $result=~s/<\/html>//;
1.159 albertel 864: } else {
1.262 sakharuk 865: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 866: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 867: $result .= $endminipage.'\end{document} ';
868: } else {
869: $result .= '';
870: }
1.159 albertel 871: }
872: }
873: }
874: if ($target eq 'grade') {
875: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
876: &finalize_storage();
877: }
1.284 albertel 878: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
879: && $env{'form.answer_output_mode'} ne 'tex') {
1.294 albertel 880: $result.=&Apache::lonxml::xmlend().'</html>';
881: # normally we get it from above, but in CSTR
1.172 albertel 882: # we always show answer mode too.
1.159 albertel 883: }
884: } elsif ($target eq 'meta') {
885: if ($Apache::inputtags::part eq '0') {
1.179 albertel 886: @Apache::inputtags::response=();
1.159 albertel 887: $result=&Apache::response::mandatory_part_meta;
888: }
1.215 albertel 889: $result.=&Apache::response::meta_part_order();
1.258 albertel 890: $result.=&Apache::response::meta_response_order();
1.159 albertel 891: } elsif ($target eq 'edit') {
892: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 893: $result .= &problem_edit_footer();
1.320 albertel 894: } elsif ($target eq 'modified') {
895: $result .= $token->[2];
896: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 897: }
1.155 albertel 898:
1.284 albertel 899: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 900: &Apache::inputtags::check_for_duplicate_ids();
901: }
1.204 albertel 902:
903: &reset_problem_globals('problem');
1.159 albertel 904:
905: return $result;
1.48 albertel 906: }
907:
1.108 albertel 908:
1.48 albertel 909: sub start_library {
1.159 albertel 910: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
911: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 912: if ($$tagstack[0] eq 'library') {
913: &init_problem_globals('library');
914: $Apache::lonhomework::type='problem';
915: }
1.159 albertel 916: if ($target eq 'edit') {
917: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
918: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
919: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
920: &problem_edit_header();
921: my $temp=&Apache::edit::insertlist($target,$token);
922: $result.=$temp;
923: } elsif ($target eq 'modified') {
924: $result=$token->[4];
925: $result.=&Apache::edit::handle_insert();
926: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 927: $env{'request.state'} eq "construct" ) {
1.159 albertel 928: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
929: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
930: my $name=&get_resource_name($parstack,$safeeval);
931: my $rndseed=&setup_rndseed($safeeval);
932: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 933: $body_tag_start \n $form_tag_start".
1.159 albertel 934: '<input type="hidden" name="submitted" value="yes" />';
935: $result.=&problem_web_to_edit_header($rndseed);
936: }
937: return $result;
1.48 albertel 938: }
939:
940: sub end_library {
1.159 albertel 941: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
942: my $result='';
943: if ($target eq 'edit') {
944: $result=&problem_edit_footer();
945: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 946: $env{'request.state'} eq "construct") {
1.280 albertel 947: $result.='</form>'.&Apache::loncommon::endbodytag().
948: &Apache::lonxml::xmlend();
1.159 albertel 949: }
1.204 albertel 950: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 951: return $result;
1.197 www 952: }
953:
954: sub start_definetag {
1.326 albertel 955: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 956:
957: my $result;
958:
959: my $name = $token->[2]->{'name'};
1.326 albertel 960: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 961: if ($name=~/^\//) {
962: $result=
963: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
964: } else {
965: $result=
966: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
967: }
968: $skip=~s/\</\<\;/gs;
969: $skip=~s/\>/\>\;/gs;
970: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
971: return $result;
972: }
973:
974: sub end_definetag {
975: return '';
1.1 albertel 976: }
977:
978: sub start_block {
1.201 albertel 979: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 980:
981: my $result;
1.1 albertel 982:
1.332.2.2! albertel 983: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
! 984: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 985: my $code = $token->[2]->{'condition'};
1.201 albertel 986: if (defined($code)) {
1.137 albertel 987: if (!$Apache::lonxml::default_homework_loaded) {
988: &Apache::lonxml::default_homework_load($safeeval);
989: }
1.131 albertel 990: $result = &Apache::run::run($code,$safeeval);
991: &Apache::lonxml::debug("block :$code: returned :$result:");
992: } else {
993: $result='1';
994: }
995: if ( ! $result ) {
1.201 albertel 996: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 997: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
998: }
999: $result='';
1000: } elsif ($target eq 'edit') {
1001: $result .=&Apache::edit::tag_start($target,$token);
1002: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1003: $token,40);
1004: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1005: } elsif ($target eq 'modified') {
1006: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1007: $safeeval,'condition');
1008: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1009: }
1.131 albertel 1010: return $result;
1.1 albertel 1011: }
1012:
1013: sub end_block {
1.167 www 1014: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1015: my $result;
1016: if ($target eq "edit") {
1017: $result.= &Apache::edit::tag_end($target,$token,'');
1018: }
1019: return $result;
1020: }
1021:
1022: sub start_languageblock {
1.201 albertel 1023: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1024:
1025: my $result;
1026:
1.332.2.2! albertel 1027: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
! 1028: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1029: my $include = $token->[2]->{'include'};
1030: my $exclude = $token->[2]->{'exclude'};
1031: my %languages=&Apache::loncommon::display_languages();
1032: $result='1';
1033: if ($include) {
1034: $result='';
1035: foreach (split(/\,/,$include)) {
1036: if ($languages{$_}) { $result='1'; }
1037: }
1038: }
1039: if ($exclude) {
1040: foreach (split(/\,/,$exclude)) {
1041: if ($languages{$_}) { $result='0'; }
1042: }
1043: }
1044: if ( ! $result ) {
1045: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1046: $style);
1047: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1048: }
1049: $result='';
1.167 www 1050: } elsif ($target eq 'edit') {
1051: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1052: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1053: $token,40);
1.211 albertel 1054: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1055: $token,40);
1056: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1057: } elsif ($target eq 'modified') {
1058: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1059: $safeeval,'include',
1060: 'exclude');
1.167 www 1061: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1062: }
1063: return $result;
1064: }
1065:
1066: sub end_languageblock {
1.170 www 1067: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1068: my $result;
1.201 albertel 1069: if ($target eq "edit") {
1.170 www 1070: $result.= &Apache::edit::tag_end($target,$token,'');
1071: }
1072: return $result;
1073: }
1074:
1075: sub start_instructorcomment {
1.201 albertel 1076: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1077:
1078: my $result;
1079:
1.332.2.2! albertel 1080: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
! 1081: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1082: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1083: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1084: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1085: $parser,$style);
1.170 www 1086: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1087: }
1088: $result='';
1089: } elsif ($target eq 'edit') {
1090: $result .=&Apache::edit::tag_start($target,$token);
1091: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1092: }
1093: return $result;
1094: }
1095:
1096: sub end_instructorcomment {
1.159 albertel 1097: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1098: my $result;
1099: if ($target eq "edit") {
1100: $result.= &Apache::edit::tag_end($target,$token,'');
1101: }
1102: return $result;
1.4 tsai 1103: }
1104:
1105: sub start_while {
1.326 albertel 1106: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1107:
1.160 albertel 1108: my $result;
1.332.2.2! albertel 1109: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
! 1110: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1111: my $code = $token->[2]->{'condition'};
1.4 tsai 1112:
1.160 albertel 1113: push( @Apache::structuretags::whileconds, $code);
1114: if (!$Apache::lonxml::default_homework_loaded) {
1115: &Apache::lonxml::default_homework_load($safeeval);
1116: }
1117: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1118: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1119: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1120: push( @Apache::structuretags::whileline, $token->[5]);
1121: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1122: if ( $result ) {
1123: &Apache::lonxml::newparser($parser,\$bodytext);
1124: }
1125: } elsif ($target eq 'edit') {
1126: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1127: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1128: $token,40);
1129: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1130: } elsif ($target eq 'modified') {
1131: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1132: $safeeval,'condition');
1133: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1134: }
1.160 albertel 1135: return $result;
1.4 tsai 1136: }
1137:
1138: sub end_while {
1.159 albertel 1139: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1140: my $result;
1141:
1.332.2.2! albertel 1142: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
! 1143: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1144: my $code = pop(@Apache::structuretags::whileconds);
1145: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1146: my $line = pop(@Apache::structuretags::whileline);
1147: my $return = &Apache::run::run($code,$safeeval);
1148: my $starttime=time;
1149: my $error=0;
1150: while ($return) {
1151: if (time-$starttime >
1152: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1153: #$return = 0; $error=1; next;
1.161 albertel 1154: }
1155: $result.=&Apache::scripttag::xmlparse($bodytext);
1156: $return = &Apache::run::run($code,$safeeval);
1157: }
1158: if ($error) {
1.270 albertel 1159: &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 1160: }
1161: } elsif ($target eq "edit") {
1162: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1163: }
1.160 albertel 1164: return $result;
1.1 albertel 1165: }
1.6 tsai 1166:
1.160 albertel 1167: # <randomlist show="1">
1.6 tsai 1168: # <tag1>..</tag1>
1169: # <tag2>..</tag2>
1170: # <tag3>..</tag3>
1.160 albertel 1171: # ...
1.6 tsai 1172: # </randomlist>
1173: sub start_randomlist {
1.326 albertel 1174: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1175: my $result;
1.332.2.2! albertel 1176: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
! 1177: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1178: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1179: my $b_parser= HTML::LCParser->new(\$body);
1180: $b_parser->xml_mode(1);
1181: $b_parser->marked_sections(1);
1.159 albertel 1182: my $b_tok;
1183: my @randomlist;
1184: my $list_item;
1185: while($b_tok = $b_parser->get_token() ) {
1186: if($b_tok->[0] eq 'S') { # start tag
1187: # get content of the tag until matching end tag
1188: # get all text upto the matching tag
1189: # and push the content into @randomlist
1190: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1191: $b_parser);
1192: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1193: push(@randomlist,$list_item);
1194: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1195: # $list_item</b>";
1196: }
1197: if($b_tok->[0] eq 'T') { # text
1198: # what to do with text in between tags?
1199: # print "<b>TEXT $b_tok->[1]</b><br />";
1200: }
1201: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1202: # print "<b>END-TAG $b_tok->[1]</b><br />";
1203: # }
1204: }
1.303 albertel 1205: if (@randomlist) {
1206: my @idx_arr = (0 .. $#randomlist);
1207: &Apache::structuretags::shuffle(\@idx_arr);
1208: my $bodytext = '';
1209: my $show=$#randomlist;
1210: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1211: $showarg--;
1212: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1213: for(0 .. $show) {
1214: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1215: }
1216: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1217: }
1218: } elsif ($target eq 'edit' ) {
1219: $result .=&Apache::edit::tag_start($target,$token);
1220: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1221: $token,5);
1222: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1223: } elsif ($target eq 'modified' ) {
1224: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1225: $safeeval,'show');
1226: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1227: }
1228: return $result;
1.7 tsai 1229: }
1230:
1231: sub shuffle {
1232: my $a=shift;
1233: my $i;
1.303 albertel 1234: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1235: &Apache::response::pushrandomnumber();
1.159 albertel 1236: for($i=@$a;--$i;) {
1237: my $j=int(&Math::Random::random_uniform() * ($i+1));
1238: next if $i == $j;
1239: @$a[$i,$j] = @$a[$j,$i];
1240: }
1.251 albertel 1241: &Apache::response::poprandomnumber();
1.7 tsai 1242: }
1.6 tsai 1243: }
1244:
1245: sub end_randomlist {
1.159 albertel 1246: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1247: my $result;
1248: if ($target eq 'edit' ) {
1249: $result=&Apache::edit::tag_end($target,$token,
1250: 'End Randomly Parsed Block');
1251: }
1252: return $result;
1.6 tsai 1253: }
1254:
1.283 albertel 1255: sub ordered_show_check {
1256: my $last_part=$Apache::inputtags::partlist[-2];
1257: my $in_order=
1258: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1259: my $in_order_show=1;
1260: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1261: $in_order_show=&Apache::response::check_status($last_part);
1262: }
1263: return $in_order_show;
1264: }
1265:
1.11 albertel 1266: sub start_part {
1.326 albertel 1267: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1268: if (!$Apache::lonxml::metamode) {
1269: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1270: # duedates.
1271: }
1.159 albertel 1272: my $result='';
1273: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1274: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1275: $Apache::inputtags::part=$id;
1.177 albertel 1276: push(@Apache::inputtags::partlist,$id);
1277: @Apache::inputtags::response=();
1.159 albertel 1278: @Apache::inputtags::previous=();
1279: @Apache::inputtags::previous_version=();
1.241 albertel 1280: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1281: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1282: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1283: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1284: my $in_order_show=&ordered_show_check();
1.214 albertel 1285: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1286: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1287: &Apache::run::run($expression,$safeeval);
1.159 albertel 1288:
1289: if ($target eq 'meta') {
1.224 www 1290: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1291: return &Apache::response::mandatory_part_meta.
1292: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1293: } elsif ($target eq 'web' || $target eq 'grade' ||
1294: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1295: if ($hidden || !$in_order_show) {
1.326 albertel 1296: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1297: } else {
1298: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1299: push (@Apache::inputtags::status,$status);
1300: my $expression='$external::datestatus="'.$status.'";';
1301: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1302: &Apache::run::run($expression,$safeeval);
1.284 albertel 1303: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1304: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1305: }
1.216 albertel 1306: if (( $status eq 'CLOSED' ) ||
1307: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1308: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1309: ( $status eq 'BANNED') ||
1310: ( $status eq 'UNAVAILABLE') ||
1311: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1312: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1313: $style);
1.159 albertel 1314: if ( $target eq "web" ) {
1.211 albertel 1315: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1316: } elsif ( $target eq 'tex' ) {
1.284 albertel 1317: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1318: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1319: } else {
1.211 albertel 1320: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1321: }
1.159 albertel 1322: }
1323: } else {
1324: if ($target eq 'tex') {
1.284 albertel 1325: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1326: if ($$tagstack[-2] eq 'td') {
1327: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1328: } else {
1329: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1330: }
1.195 sakharuk 1331: }
1.159 albertel 1332: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1333: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1334: my @allkeys = split /,/,$allkeys;
1335: my $allow_print_points = 0;
1336: foreach my $partial_key (@allkeys) {
1.230 albertel 1337: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1338: if ($1 ne '0') {$allow_print_points=1;}
1339: }
1340: }
1.275 albertel 1341: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1342: if (defined($maxtries) && $maxtries < 0) {
1343: $allow_print_points=0;
1344: }
1.302 albertel 1345: if (lc($env{'course.'.$env{'request.course.id'}.
1346: '.disableexampointprint'}) eq 'yes') {
1347: $allow_print_points=0;
1348: }
1.222 sakharuk 1349: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1350: } elsif ($target eq 'web') {
1351: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1352: }
1353: }
1354: }
1355: } elsif ($target eq 'edit') {
1356: $result.=&Apache::edit::tag_start($target,$token);
1357: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1358: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1359: ' '.
1360: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1361: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1362: } elsif ($target eq 'modified') {
1363: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1364: $safeeval,'id','display');
1.159 albertel 1365: if ($constructtag) {
1.225 albertel 1366: #limiting ids to only letters numbers, and space
1.224 www 1367: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1368: $result = &Apache::edit::rebuild_tag($token);
1369: $result.=&Apache::edit::handle_insert();
1370: }
1371: }
1372: return $result;
1.11 albertel 1373: }
1374:
1375: sub end_part {
1.159 albertel 1376: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1377: &Apache::lonxml::debug("in end_part $target ");
1378: my $status=$Apache::inputtags::status['-1'];
1379: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1380: my $in_order_show=&ordered_show_check();
1.321 albertel 1381: my $result;
1382: if (!$Apache::lonxml::metamode) {
1383: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1384: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1385: }
1.312 albertel 1386: if ($target eq 'grade') {
1.249 albertel 1387: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1388: !$hidden && $in_order_show) {
1.311 foxr 1389: $result.=&Apache::inputtags::grade;
1.249 albertel 1390: } else {
1391: # move any submission data to .hidden
1392: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1393: }
1.283 albertel 1394: } elsif (($target eq 'web' || $target eq 'tex') &&
1395: !$hidden && $in_order_show) {
1.159 albertel 1396: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1397: $target);
1.212 albertel 1398: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1399: $gradestatus='';
1400: }
1.311 foxr 1401: $result.=$gradestatus;
1.265 sakharuk 1402: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1403: } elsif ($target eq 'edit') {
1.311 foxr 1404: $result.=&Apache::edit::end_table();
1.322 albertel 1405: } elsif ($target eq 'modified') {
1406: $result .= $token->[2];
1407: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 1408: }
1409: pop @Apache::inputtags::status;
1410: $Apache::inputtags::part='';
1.295 albertel 1411: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1412: return $result;
1.11 albertel 1413: }
1.1 albertel 1414:
1.25 albertel 1415: sub start_preduedate {
1.326 albertel 1416: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.332.2.2! albertel 1417: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
! 1418: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1419: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1420: if (!$Apache::lonhomework::scantronmode &&
1421: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1422: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1423: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1424: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1425: }
1.24 albertel 1426: }
1.159 albertel 1427: return '';
1.24 albertel 1428: }
1429:
1.25 albertel 1430: sub end_preduedate {
1.159 albertel 1431: return '';
1.24 albertel 1432: }
1433:
1.25 albertel 1434: sub start_postanswerdate {
1.326 albertel 1435: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.332.2.2! albertel 1436: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade') {
1.300 albertel 1437: if ($Apache::lonhomework::scantronmode ||
1438: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.326 albertel 1439: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1440: }
1441: } elsif ($target eq 'tex') {
1.326 albertel 1442: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1443: }
1444: return '';
1.24 albertel 1445: }
1446:
1.25 albertel 1447: sub end_postanswerdate {
1.159 albertel 1448: return '';
1.24 albertel 1449: }
1450:
1.25 albertel 1451: sub start_notsolved {
1.326 albertel 1452: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1453: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.332.2.2! albertel 1454: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1455: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1456: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1457: if ($gradestatus =~ /^correct/ &&
1458: &Apache::response::show_answer()) {
1.159 albertel 1459: &Apache::lonxml::debug("skipping");
1.326 albertel 1460: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1461: }
1.24 albertel 1462: }
1.159 albertel 1463: return '';
1.24 albertel 1464: }
1465:
1.25 albertel 1466: sub end_notsolved {
1.159 albertel 1467: return '';
1.24 albertel 1468: }
1469:
1470: sub start_solved {
1.326 albertel 1471: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1472: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1473: $target eq 'tex') {
1474: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1475: if ($gradestatus !~ /^correct/ ||
1476: !&Apache::response::show_answer()) {
1.326 albertel 1477: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1478: }
1.24 albertel 1479: }
1.159 albertel 1480: return '';
1.24 albertel 1481: }
1482:
1483: sub end_solved {
1.248 albertel 1484: return '';
1485: }
1486:
1487: sub start_problemtype {
1.326 albertel 1488: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1489: my $result;
1.332.2.2! albertel 1490: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
! 1491: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1492: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1493: if (!defined($mode)) { $mode='show'; }
1494: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1495: my $found=0;
1496: foreach my $type (split(',',$for)) {
1497: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1498: }
1499: if ($mode eq 'show' && !$found) {
1.326 albertel 1500: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1501: }
1502: if ($mode eq 'hide' && $found) {
1.326 albertel 1503: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1504: }
1505: } elsif ($target eq 'edit') {
1506: $result .=&Apache::edit::tag_start($target,$token);
1507: $result.=&Apache::edit::select_arg('Mode:','mode',
1508: [['show','Show'],
1509: ['hide','Hide']]
1510: ,$token);
1511: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1512: [ ['exam','Exam/Quiz Problem'],
1513: ['survey','Survey'],
1514: ['problem','Homework Problem'] ]
1515: ,$token);
1516: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1517: } elsif ($target eq 'modified') {
1518: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1519: $safeeval,'mode','for');
1520: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1521: }
1522: return $result;
1523: }
1524:
1525: sub end_problemtype {
1.159 albertel 1526: return '';
1.24 albertel 1527: }
1.34 albertel 1528:
1529: sub start_startouttext {
1.159 albertel 1530: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1531: my @result=(''.'');
1532: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1533: return (@result);
1.34 albertel 1534: }
1.159 albertel 1535:
1.34 albertel 1536: sub end_startouttext {
1.326 albertel 1537: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1538: my $result='';
1539: my $text='';
1540:
1541: if ($target eq 'edit') {
1.326 albertel 1542: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1543: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1544: <td>".&mt('Delete:').
1.159 albertel 1545: &Apache::edit::deletelist($target,$token)
1546: ."</td>
1.42 albertel 1547: <td>".
1.159 albertel 1548: &Apache::edit::insertlist($target,$token).
1549: &Apache::edit::end_row().
1550: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1551: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1552: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1553: }
1554: if ($target eq 'modified') {
1.219 albertel 1555: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1556: }
1557: if ($target eq 'tex') {
1558: $result .= '\noindent ';
1559: }
1560: return $result;
1.34 albertel 1561: }
1.159 albertel 1562:
1.34 albertel 1563: sub start_endouttext {
1.159 albertel 1564: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1565: my $result='';
1566: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1567: if ($target eq "modified") {
1568: $result='<endouttext />'.
1569: &Apache::edit::handle_insertafter('startouttext'); }
1570: return $result;
1.34 albertel 1571: }
1.159 albertel 1572:
1.34 albertel 1573: sub end_endouttext {
1.159 albertel 1574: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1575: my @result=('','');
1576: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1577: return (@result);
1.34 albertel 1578: }
1.159 albertel 1579:
1.45 albertel 1580: sub delete_startouttext {
1.326 albertel 1581: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1582: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1583: my $text=$$parser['-1']->get_text("/endouttext");
1584: my $ntoken=$$parser['-1']->get_token();
1585: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1586: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1587: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1588: # they did the last time round
1589: &Apache::lonxml::increasedepth($ntoken);
1590: &Apache::lonxml::decreasedepth($ntoken);
1591: return 1;
1.193 www 1592: }
1593:
1594: sub start_simpleeditbutton {
1595: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1596: my $result='';
1.284 albertel 1597: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1598: ($target eq 'web') &&
1.330 albertel 1599: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1600: my $url=$env{'request.noversionuri'};
1.193 www 1601: $url=~s/\?.*$//;
1.278 albertel 1602: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1603: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1604: '<a href="'.$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 1605: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1606: }
1607: return $result;
1608: }
1609:
1610: sub end_simpleeditbutton {
1611: return '';
1.45 albertel 1612: }
1.34 albertel 1613:
1.1 albertel 1614: 1;
1615: __END__
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