Annotation of loncom/homework/structuretags.pm, revision 1.332.2.3
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.332.2.3! albertel 4: # $Id: structuretags.pm,v 1.332.2.2 2006/03/29 22:43:29 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?');
1.332.2.3! albertel 432: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 433: return (<<ENDCHECKOUT);
1.211 albertel 434: <h2>$lt{'resource'}</h2>
435: <p>$lt{'id_expln'}</p>
436: <font color="red">
437: <p>$lt{'warning'}</p>
1.91 albertel 438: </font>
1.332.2.3! albertel 439: <form name="checkout" method="POST" action="$uri">
1.91 albertel 440: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 441: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 442: </form>
443: ENDCHECKOUT
444: }
445:
1.252 albertel 446: sub firstaccess_msg {
1.253 albertel 447: my ($time,$symb)=@_;
448: my ($map)=&Apache::lonnet::decode_symb($symb);
449: my $foldertitle=&Apache::lonnet::gettitle($map);
450: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.332.2.3! albertel 451: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.252 albertel 452: return (<<ENDCHECKOUT);
1.253 albertel 453: <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>
1.332.2.3! albertel 454: <form name="markaccess" method="POST" action="$uri">
1.252 albertel 455: <input type="hidden" name="markaccess" value="yes" />
456: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
457: </form>
458: ENDCHECKOUT
459: }
460:
1.204 albertel 461: sub init_problem_globals {
462: my ($type)=@_;
463: #initialize globals
1.308 foxr 464: # For problems, we start out in part 0 (outside a <part> tag).
465: # and part 0 is used to describe the main body of the <problem>
466: #
1.204 albertel 467: if ($type eq 'problem') {
468: $Apache::inputtags::part='0';
469: @Apache::inputtags::partlist=('0');
1.266 albertel 470: $Apache::lonhomework::problemstatus=&get_problem_status('0');
471: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 472:
1.266 albertel 473: } elsif ($type eq 'library') {
1.204 albertel 474: $Apache::inputtags::part='';
475: @Apache::inputtags::partlist=();
476: $Apache::lonhomework::problemstatus='';
1.266 albertel 477: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 478:
1.304 albertel 479: } elsif ($type eq 'Task') {
480: $Apache::inputtags::part='0';
481: @Apache::inputtags::partlist=('0');
482: $Apache::lonhomework::problemstatus='';
483: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 484: }
485: @Apache::inputtags::responselist = ();
486: @Apache::inputtags::importlist = ();
487: @Apache::inputtags::previous=();
488: @Apache::inputtags::previous_version=();
489: $Apache::structuretags::printanswer='No';
490: @Apache::structuretags::whileconds=();
491: @Apache::structuretags::whilebody=();
492: @Apache::structuretags::whileline=();
493: $Apache::lonhomework::scantronmode=0;
494: undef($Apache::lonhomework::name);
495:
496: }
497:
498: sub reset_problem_globals {
499: my ($type)=@_;
500: undef(%Apache::lonhomework::history);
501: undef(%Apache::lonhomework::results);
502: undef($Apache::inputtags::part);
1.208 albertel 503: #don't undef this, lonhomework.pm takes care of this, we use this to
504: #detect if we try to do 2 problems in one file
505: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 506: undef($Apache::lonhomework::name);
507: }
508:
1.241 albertel 509: sub set_problem_state {
1.240 albertel 510: my ($part)=@_;
1.284 albertel 511: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 512: $Apache::lonhomework::history{"resource.$part.solved"}=
513: 'correct_by_student';
514: }
515: }
516:
1.241 albertel 517: sub get_problem_status {
518: my ($part)=@_;
1.267 albertel 519: my $problem_status;
1.284 albertel 520: if ($env{'request.state'} eq 'construct' &&
521: defined($env{'form.problemstatus'})) {
522: $problem_status=$env{'form.problemstatus'};
1.267 albertel 523: } else {
524: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
525: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 526: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 527: }
528: return $problem_status;
529: }
530:
1.9 albertel 531: sub start_problem {
1.326 albertel 532: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 533:
1.311 foxr 534: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 535: if (!$Apache::lonxml::metamode) {
536: &Apache::lonxml::startredirection();
537: }
1.311 foxr 538:
1.308 foxr 539: # Problems don't nest and we don't allow more than one <problem> in
540: # a .problem file.
541: #
1.184 albertel 542: if ( $Apache::inputtags::part ne '' ||
543: $Apache::lonhomework::parsing_a_problem) {
544: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 545: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 546: return '';
547: }
1.184 albertel 548:
549: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 550: &init_problem_globals('problem');
1.166 albertel 551:
1.284 albertel 552: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 553: $Apache::lonhomework::scantronmode=1;
554: }
1.161 albertel 555:
1.246 albertel 556: &initialize_storage();
1.159 albertel 557: if ($target ne 'analyze') {
558: if ($target eq 'web') {
559: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 560: }
1.284 albertel 561: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 562: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 563: if (($env{'request.state'} eq 'construct') &&
564: defined($env{'form.problemtype'})) {
565: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 566: }
1.332 albertel 567: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 568: }
1.164 albertel 569: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 570: my $uri=$env{'request.uri'};
1.159 albertel 571: if ($uri=~/\.(\w+)$/) {
572: $Apache::lonhomework::type=$1;
573: &Apache::lonxml::debug("Using type of $1");
574: } else {
575: $Apache::lonhomework::type='problem';
576: &Apache::lonxml::debug("Using default type, problem, :$uri:");
577: }
1.87 albertel 578: }
1.301 albertel 579: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 580:
1.159 albertel 581: #added vars to the scripting enviroment
1.213 albertel 582: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 583: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 584: &Apache::run::run($expression,$safeeval);
1.159 albertel 585: my $status;
586: my $accessmsg;
587:
588: #should get back a <html> or the neccesary stuff to start XML/MathML
589: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
590: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.284 albertel 591: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 592:
593: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
594: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
595: $target eq 'tex') {
596: #handle exam checkout
597: if ($Apache::lonhomework::type eq 'exam') {
598: my $token=
599: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 600: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 601: $token=&Apache::lonxml::maketoken();
602: $Apache::lonhomework::history{"resource.0.outtoken"}=
603: $token;
604: }
605: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 606: }
1.284 albertel 607: if ($env{'form.markaccess'}) {
1.252 albertel 608: &Apache::lonnet::set_first_access('map');
609: }
1.159 albertel 610: #handle rand seed in construction space
611: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 612: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 613: if ($env{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 614: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
615: $rndseed.'" />'.
616: '<input type="submit" name="resetdata"
1.211 albertel 617: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 618: '<input type="hidden" name="username"
1.284 albertel 619: value="'.$env{'form.username'}.'" />';
620: if ($env{'user.adv'}) {
1.267 albertel 621: $form_tag_start.=
1.300 albertel 622: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 623: if (defined($env{'form.showallfoils'})) {
1.267 albertel 624: $form_tag_start.='checked="on"';
625: }
1.300 albertel 626: $form_tag_start.= ' />'.&mt(' Show All Foils').
627: '</label>';
1.267 albertel 628: }
629: $form_tag_start.='<hr />';
1.162 albertel 630: }
1.324 albertel 631:
632: ($status,$accessmsg,my $slot_name,my $slot) =
633: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 634: push (@Apache::inputtags::status,$status);
1.324 albertel 635:
1.159 albertel 636: my $expression='$external::datestatus="'.$status.'";';
637: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
638: &Apache::run::run($expression,$safeeval);
639: &Apache::lonxml::debug("Got $status");
1.324 albertel 640:
1.159 albertel 641: if (( $status eq 'CLOSED' ) ||
642: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 643: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 644: ( $status eq 'BANNED') ||
1.216 albertel 645: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 646: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 647: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 648: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
649: $style);
1.159 albertel 650: if ( $target eq "web" ) {
651: $result.= $head_tag_start.'</head>';
652: my $msg=$body_tag_start;
653: if ($status eq 'UNAVAILABLE') {
1.245 albertel 654: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 655: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 656: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 657: }
1.216 albertel 658: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 659: $msg.='The problem '.$accessmsg;
660: } elsif ($status eq 'UNCHECKEDOUT') {
661: $msg.=&checkout_msg;
1.252 albertel 662: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 663: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 664: } elsif ($status eq 'NOT_IN_A_SLOT') {
665: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 666: }
667: $result.=$msg.'<br />';
668: } elsif ($target eq 'tex') {
1.332 albertel 669: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
670: : '\begin{minipage}{\textwidth}';
671: $result.='\begin{document}\noindent \vskip 1 mm '.
672: $startminipage.'\vskip 0 mm';
1.159 albertel 673: if ($status eq 'UNAVAILABLE') {
1.211 albertel 674: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 675: } else {
1.211 albertel 676: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 677: }
678: }
1.324 albertel 679: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 680: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
681: $style);
1.324 albertel 682: if ($target eq 'web') {
683: $result .= $head_tag_start.'</head>';
684: $result .= $body_tag_start;
685: $result .= &Apache::bridgetask::proctor_validation_screen();
686: } elsif ($target eq 'grade') {
687: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
688: 'problem');
689: }
1.159 albertel 690: } elsif ($target eq 'web') {
691: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 692: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 693: $body_tag_start \n $form_tag_start".
1.227 albertel 694: '<input type="hidden" name="submitted" value="yes" />';
695: # create a page header and exit
1.284 albertel 696: if ($env{'request.state'} eq "construct") {
697: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 698: }
699: # if we are viewing someone else preserve that info
1.284 albertel 700: if (defined $env{'form.grade_symb'}) {
1.227 albertel 701: foreach my $field ('symb','courseid','domain','username') {
702: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 703: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 704: }
705: }
706: } elsif ($target eq 'tex') {
1.319 foxr 707: $result .= 'INSERTTEXFRONTMATTERHERE';
708:
1.99 sakharuk 709: }
1.159 albertel 710: } elsif ($target eq 'edit') {
711: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
712: &problem_edit_header();
1.226 albertel 713: $Apache::lonxml::warnings_error_header=
714: &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 715: my $temp=&Apache::edit::insertlist($target,$token);
716: $result.=$temp;
717: } elsif ($target eq 'modified') {
718: $result=$token->[4];
719: $result.=&Apache::edit::handle_insert();
720: } else {
721: # page_start returned a starting result, delete it if we don't need it
722: $result = '';
1.99 sakharuk 723: }
1.159 albertel 724: return $result;
1.9 albertel 725: }
726:
727: sub end_problem {
1.159 albertel 728: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 729: my $result;
1.310 foxr 730:
1.321 albertel 731: if (!$Apache::lonxml::metamode) {
732: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 733: $Apache::lonxml::post_evaluate=0;
1.321 albertel 734: }
1.319 foxr 735:
736: if ($target eq 'tex') {
1.321 albertel 737:
738: # Figure out the front matter and replace the
739: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
740: # this in end_problem because whether or not we display due
741: # dates depends on whether due dates have already been
742: # displayed in the problem parts.
743:
1.319 foxr 744: my $frontmatter = '';
745: my $startminipage = '';
746: if (not $env{'form.problem_split'}=~/yes/) {
747: $startminipage = '\begin{minipage}{\textwidth}';
748: }
749: my $id = $Apache::inputtags::part;
750: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
751: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
752: my @packages = split /,/,$packages;
753: my $allow_print_points = 0;
754: foreach my $partial_key (@packages) {
755: if ($partial_key=~m/^part_0$/) {
756: $allow_print_points=1;
757: }
758: }
759: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
760: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
761: if (lc($env{'course.'.$env{'request.course.id'}.
762: '.disableexampointprint'}) eq 'yes') {
763: $allow_print_points=0;
764: }
765: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
766: 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 ';
767: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
768: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
769:
770: # Figure out what the due date is and if we need to print
771: # it in the problem header. We have been logging the
772: # last due date written to file.
773:
774: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
775: my $duedate = POSIX::strftime("%c",localtime($duetime));
776: my $temp_file;
777: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
778:
779: # Figure out what the last printed due date is or set it
780: # to the epoch if no duedates have been printed.
781:
782: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
783: if (-e $filename) {
784: $temp_file = Apache::File->new($filename);
785: my @due_file = <$temp_file>;
786: $due_file_content = $due_file[$#due_file];
787: chomp $due_file_content;
788: }
789:
790: # We display the due date iff it is not the same as the last
791: # duedate in problem header ($due_file_content), and
792: # none of our parts displayed a duedate.
793: #
794: my $parts_with_displayduedate;
795: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
796: $parts_with_displayduedate =
797: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
798: } else {
799: $parts_with_displayduedate = 0;
800: }
801: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
802: $temp_file = Apache::File->new('>'.$filename);
803: print $temp_file "$duetime\n";
804: if (not $env{'request.symb'} =~ m/\.page_/) {
805: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
806: $frontmatter .= $begin_doc.
807: '\textit{Due date: '.$duedate.'} '.$toc_line;
808: } else {
809: $frontmatter.= $begin_doc.$toc_line;
810: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
811: }
812: } else {
813: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
814: }
815: } else {
816: if (not $env{'request.symb'} =~ m/\.page_/) {
817: $frontmatter .= $begin_doc.$toc_line;
818: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
819: } else {
820: $frontmatter .= '\vskip 1mm \\\\\\\\';
821: }
822: }
823: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
824: }
825:
1.159 albertel 826: my $status=$Apache::inputtags::status['-1'];
827: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
828: $target eq 'tex') {
1.249 albertel 829: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 830: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 831: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
832: &Apache::inputtags::grade;
1.324 albertel 833: } elsif ($status eq 'NEEDS_CHECKIN') {
834: # no need to grade, and don't want to hide data
1.249 albertel 835: } else {
836: # move any submission data to .hidden
837: &Apache::inputtags::hidealldata($Apache::inputtags::part);
838: }
1.159 albertel 839: } elsif ( ($target eq 'web' || $target eq 'tex') &&
840: $Apache::inputtags::part eq '0' &&
1.252 albertel 841: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 842: # if part is zero, no <part>s existed, so we need show the current
843: # grading status
844: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
845: $result.= $gradestatus;
846: }
847: if (
1.284 albertel 848: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 849: ($target eq 'answer') || ($target eq 'tex')
850: ) {
1.227 albertel 851: if ($target ne 'tex' &&
1.284 albertel 852: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 853: $result.="</form>";
854: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
1.159 albertel 855: }
856: if ($target eq 'web') {
1.281 albertel 857: $result.=&Apache::lonxml::xmlend().'</html>';
1.159 albertel 858: } elsif ($target eq 'tex') {
1.178 sakharuk 859: my $endminipage = '';
1.284 albertel 860: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 861: $endminipage = '\end{minipage}';
862: }
1.284 albertel 863: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 864: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 865: $result=~s/<\/html>//;
1.159 albertel 866: } else {
1.262 sakharuk 867: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 868: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 869: $result .= $endminipage.'\end{document} ';
870: } else {
871: $result .= '';
872: }
1.159 albertel 873: }
874: }
875: }
876: if ($target eq 'grade') {
877: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
878: &finalize_storage();
879: }
1.284 albertel 880: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
881: && $env{'form.answer_output_mode'} ne 'tex') {
1.294 albertel 882: $result.=&Apache::lonxml::xmlend().'</html>';
883: # normally we get it from above, but in CSTR
1.172 albertel 884: # we always show answer mode too.
1.159 albertel 885: }
886: } elsif ($target eq 'meta') {
887: if ($Apache::inputtags::part eq '0') {
1.179 albertel 888: @Apache::inputtags::response=();
1.159 albertel 889: $result=&Apache::response::mandatory_part_meta;
890: }
1.215 albertel 891: $result.=&Apache::response::meta_part_order();
1.258 albertel 892: $result.=&Apache::response::meta_response_order();
1.159 albertel 893: } elsif ($target eq 'edit') {
894: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 895: $result .= &problem_edit_footer();
1.320 albertel 896: } elsif ($target eq 'modified') {
897: $result .= $token->[2];
898: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 899: }
1.155 albertel 900:
1.284 albertel 901: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 902: &Apache::inputtags::check_for_duplicate_ids();
903: }
1.204 albertel 904:
905: &reset_problem_globals('problem');
1.159 albertel 906:
907: return $result;
1.48 albertel 908: }
909:
1.108 albertel 910:
1.48 albertel 911: sub start_library {
1.159 albertel 912: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
913: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 914: if ($$tagstack[0] eq 'library') {
915: &init_problem_globals('library');
916: $Apache::lonhomework::type='problem';
917: }
1.159 albertel 918: if ($target eq 'edit') {
919: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
920: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
921: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
922: &problem_edit_header();
923: my $temp=&Apache::edit::insertlist($target,$token);
924: $result.=$temp;
925: } elsif ($target eq 'modified') {
926: $result=$token->[4];
927: $result.=&Apache::edit::handle_insert();
928: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 929: $env{'request.state'} eq "construct" ) {
1.159 albertel 930: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
931: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
932: my $name=&get_resource_name($parstack,$safeeval);
933: my $rndseed=&setup_rndseed($safeeval);
934: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 935: $body_tag_start \n $form_tag_start".
1.159 albertel 936: '<input type="hidden" name="submitted" value="yes" />';
937: $result.=&problem_web_to_edit_header($rndseed);
938: }
939: return $result;
1.48 albertel 940: }
941:
942: sub end_library {
1.159 albertel 943: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
944: my $result='';
945: if ($target eq 'edit') {
946: $result=&problem_edit_footer();
947: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 948: $env{'request.state'} eq "construct") {
1.280 albertel 949: $result.='</form>'.&Apache::loncommon::endbodytag().
950: &Apache::lonxml::xmlend();
1.159 albertel 951: }
1.204 albertel 952: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 953: return $result;
1.197 www 954: }
955:
956: sub start_definetag {
1.326 albertel 957: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 958:
959: my $result;
960:
961: my $name = $token->[2]->{'name'};
1.326 albertel 962: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 963: if ($name=~/^\//) {
964: $result=
965: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
966: } else {
967: $result=
968: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
969: }
970: $skip=~s/\</\<\;/gs;
971: $skip=~s/\>/\>\;/gs;
972: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
973: return $result;
974: }
975:
976: sub end_definetag {
977: return '';
1.1 albertel 978: }
979:
980: sub start_block {
1.201 albertel 981: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 982:
983: my $result;
1.1 albertel 984:
1.332.2.2 albertel 985: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
986: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 987: my $code = $token->[2]->{'condition'};
1.201 albertel 988: if (defined($code)) {
1.137 albertel 989: if (!$Apache::lonxml::default_homework_loaded) {
990: &Apache::lonxml::default_homework_load($safeeval);
991: }
1.131 albertel 992: $result = &Apache::run::run($code,$safeeval);
993: &Apache::lonxml::debug("block :$code: returned :$result:");
994: } else {
995: $result='1';
996: }
997: if ( ! $result ) {
1.201 albertel 998: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 999: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1000: }
1001: $result='';
1002: } elsif ($target eq 'edit') {
1003: $result .=&Apache::edit::tag_start($target,$token);
1004: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1005: $token,40);
1006: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1007: } elsif ($target eq 'modified') {
1008: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1009: $safeeval,'condition');
1010: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1011: }
1.131 albertel 1012: return $result;
1.1 albertel 1013: }
1014:
1015: sub end_block {
1.167 www 1016: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1017: my $result;
1018: if ($target eq "edit") {
1019: $result.= &Apache::edit::tag_end($target,$token,'');
1020: }
1021: return $result;
1022: }
1023:
1024: sub start_languageblock {
1.201 albertel 1025: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1026:
1027: my $result;
1028:
1.332.2.2 albertel 1029: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1030: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1031: my $include = $token->[2]->{'include'};
1032: my $exclude = $token->[2]->{'exclude'};
1033: my %languages=&Apache::loncommon::display_languages();
1034: $result='1';
1035: if ($include) {
1036: $result='';
1037: foreach (split(/\,/,$include)) {
1038: if ($languages{$_}) { $result='1'; }
1039: }
1040: }
1041: if ($exclude) {
1042: foreach (split(/\,/,$exclude)) {
1043: if ($languages{$_}) { $result='0'; }
1044: }
1045: }
1046: if ( ! $result ) {
1047: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1048: $style);
1049: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1050: }
1051: $result='';
1.167 www 1052: } elsif ($target eq 'edit') {
1053: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1054: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1055: $token,40);
1.211 albertel 1056: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1057: $token,40);
1058: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1059: } elsif ($target eq 'modified') {
1060: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1061: $safeeval,'include',
1062: 'exclude');
1.167 www 1063: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1064: }
1065: return $result;
1066: }
1067:
1068: sub end_languageblock {
1.170 www 1069: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1070: my $result;
1.201 albertel 1071: if ($target eq "edit") {
1.170 www 1072: $result.= &Apache::edit::tag_end($target,$token,'');
1073: }
1074: return $result;
1075: }
1076:
1077: sub start_instructorcomment {
1.201 albertel 1078: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1079:
1080: my $result;
1081:
1.332.2.2 albertel 1082: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1083: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1084: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1085: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1086: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1087: $parser,$style);
1.170 www 1088: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1089: }
1090: $result='';
1091: } elsif ($target eq 'edit') {
1092: $result .=&Apache::edit::tag_start($target,$token);
1093: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1094: }
1095: return $result;
1096: }
1097:
1098: sub end_instructorcomment {
1.159 albertel 1099: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1100: my $result;
1101: if ($target eq "edit") {
1102: $result.= &Apache::edit::tag_end($target,$token,'');
1103: }
1104: return $result;
1.4 tsai 1105: }
1106:
1107: sub start_while {
1.326 albertel 1108: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1109:
1.160 albertel 1110: my $result;
1.332.2.2 albertel 1111: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1112: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1113: my $code = $token->[2]->{'condition'};
1.4 tsai 1114:
1.160 albertel 1115: push( @Apache::structuretags::whileconds, $code);
1116: if (!$Apache::lonxml::default_homework_loaded) {
1117: &Apache::lonxml::default_homework_load($safeeval);
1118: }
1119: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1120: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1121: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1122: push( @Apache::structuretags::whileline, $token->[5]);
1123: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1124: if ( $result ) {
1125: &Apache::lonxml::newparser($parser,\$bodytext);
1126: }
1127: } elsif ($target eq 'edit') {
1128: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1129: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1130: $token,40);
1131: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1132: } elsif ($target eq 'modified') {
1133: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1134: $safeeval,'condition');
1135: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1136: }
1.160 albertel 1137: return $result;
1.4 tsai 1138: }
1139:
1140: sub end_while {
1.159 albertel 1141: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1142: my $result;
1143:
1.332.2.2 albertel 1144: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1145: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1146: my $code = pop(@Apache::structuretags::whileconds);
1147: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1148: my $line = pop(@Apache::structuretags::whileline);
1149: my $return = &Apache::run::run($code,$safeeval);
1150: my $starttime=time;
1151: my $error=0;
1152: while ($return) {
1153: if (time-$starttime >
1154: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1155: #$return = 0; $error=1; next;
1.161 albertel 1156: }
1157: $result.=&Apache::scripttag::xmlparse($bodytext);
1158: $return = &Apache::run::run($code,$safeeval);
1159: }
1160: if ($error) {
1.270 albertel 1161: &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 1162: }
1163: } elsif ($target eq "edit") {
1164: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1165: }
1.160 albertel 1166: return $result;
1.1 albertel 1167: }
1.6 tsai 1168:
1.160 albertel 1169: # <randomlist show="1">
1.6 tsai 1170: # <tag1>..</tag1>
1171: # <tag2>..</tag2>
1172: # <tag3>..</tag3>
1.160 albertel 1173: # ...
1.6 tsai 1174: # </randomlist>
1175: sub start_randomlist {
1.326 albertel 1176: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1177: my $result;
1.332.2.2 albertel 1178: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1179: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1180: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1181: my $b_parser= HTML::LCParser->new(\$body);
1182: $b_parser->xml_mode(1);
1183: $b_parser->marked_sections(1);
1.159 albertel 1184: my $b_tok;
1185: my @randomlist;
1186: my $list_item;
1187: while($b_tok = $b_parser->get_token() ) {
1188: if($b_tok->[0] eq 'S') { # start tag
1189: # get content of the tag until matching end tag
1190: # get all text upto the matching tag
1191: # and push the content into @randomlist
1192: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1193: $b_parser);
1194: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1195: push(@randomlist,$list_item);
1196: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1197: # $list_item</b>";
1198: }
1199: if($b_tok->[0] eq 'T') { # text
1200: # what to do with text in between tags?
1201: # print "<b>TEXT $b_tok->[1]</b><br />";
1202: }
1203: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1204: # print "<b>END-TAG $b_tok->[1]</b><br />";
1205: # }
1206: }
1.303 albertel 1207: if (@randomlist) {
1208: my @idx_arr = (0 .. $#randomlist);
1209: &Apache::structuretags::shuffle(\@idx_arr);
1210: my $bodytext = '';
1211: my $show=$#randomlist;
1212: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1213: $showarg--;
1214: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1215: for(0 .. $show) {
1216: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1217: }
1218: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1219: }
1220: } elsif ($target eq 'edit' ) {
1221: $result .=&Apache::edit::tag_start($target,$token);
1222: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1223: $token,5);
1224: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1225: } elsif ($target eq 'modified' ) {
1226: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1227: $safeeval,'show');
1228: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1229: }
1230: return $result;
1.7 tsai 1231: }
1232:
1233: sub shuffle {
1234: my $a=shift;
1235: my $i;
1.303 albertel 1236: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1237: &Apache::response::pushrandomnumber();
1.159 albertel 1238: for($i=@$a;--$i;) {
1239: my $j=int(&Math::Random::random_uniform() * ($i+1));
1240: next if $i == $j;
1241: @$a[$i,$j] = @$a[$j,$i];
1242: }
1.251 albertel 1243: &Apache::response::poprandomnumber();
1.7 tsai 1244: }
1.6 tsai 1245: }
1246:
1247: sub end_randomlist {
1.159 albertel 1248: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1249: my $result;
1250: if ($target eq 'edit' ) {
1251: $result=&Apache::edit::tag_end($target,$token,
1252: 'End Randomly Parsed Block');
1253: }
1254: return $result;
1.6 tsai 1255: }
1256:
1.283 albertel 1257: sub ordered_show_check {
1258: my $last_part=$Apache::inputtags::partlist[-2];
1259: my $in_order=
1260: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1261: my $in_order_show=1;
1262: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1263: $in_order_show=&Apache::response::check_status($last_part);
1264: }
1265: return $in_order_show;
1266: }
1267:
1.11 albertel 1268: sub start_part {
1.326 albertel 1269: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1270: if (!$Apache::lonxml::metamode) {
1271: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1272: # duedates.
1273: }
1.159 albertel 1274: my $result='';
1275: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1276: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1277: $Apache::inputtags::part=$id;
1.177 albertel 1278: push(@Apache::inputtags::partlist,$id);
1279: @Apache::inputtags::response=();
1.159 albertel 1280: @Apache::inputtags::previous=();
1281: @Apache::inputtags::previous_version=();
1.241 albertel 1282: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1283: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1284: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1285: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1286: my $in_order_show=&ordered_show_check();
1.214 albertel 1287: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1288: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1289: &Apache::run::run($expression,$safeeval);
1.159 albertel 1290:
1291: if ($target eq 'meta') {
1.224 www 1292: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1293: return &Apache::response::mandatory_part_meta.
1294: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1295: } elsif ($target eq 'web' || $target eq 'grade' ||
1296: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1297: if ($hidden || !$in_order_show) {
1.326 albertel 1298: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1299: } else {
1300: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1301: push (@Apache::inputtags::status,$status);
1302: my $expression='$external::datestatus="'.$status.'";';
1303: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1304: &Apache::run::run($expression,$safeeval);
1.284 albertel 1305: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1306: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1307: }
1.216 albertel 1308: if (( $status eq 'CLOSED' ) ||
1309: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1310: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1311: ( $status eq 'BANNED') ||
1312: ( $status eq 'UNAVAILABLE') ||
1313: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1314: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1315: $style);
1.159 albertel 1316: if ( $target eq "web" ) {
1.211 albertel 1317: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1318: } elsif ( $target eq 'tex' ) {
1.284 albertel 1319: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1320: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1321: } else {
1.211 albertel 1322: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1323: }
1.159 albertel 1324: }
1325: } else {
1326: if ($target eq 'tex') {
1.284 albertel 1327: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1328: if ($$tagstack[-2] eq 'td') {
1329: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1330: } else {
1331: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1332: }
1.195 sakharuk 1333: }
1.159 albertel 1334: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1335: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1336: my @allkeys = split /,/,$allkeys;
1337: my $allow_print_points = 0;
1338: foreach my $partial_key (@allkeys) {
1.230 albertel 1339: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1340: if ($1 ne '0') {$allow_print_points=1;}
1341: }
1342: }
1.275 albertel 1343: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1344: if (defined($maxtries) && $maxtries < 0) {
1345: $allow_print_points=0;
1346: }
1.302 albertel 1347: if (lc($env{'course.'.$env{'request.course.id'}.
1348: '.disableexampointprint'}) eq 'yes') {
1349: $allow_print_points=0;
1350: }
1.222 sakharuk 1351: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1352: } elsif ($target eq 'web') {
1353: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1354: }
1355: }
1356: }
1357: } elsif ($target eq 'edit') {
1358: $result.=&Apache::edit::tag_start($target,$token);
1359: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1360: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1361: ' '.
1362: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1363: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1364: } elsif ($target eq 'modified') {
1365: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1366: $safeeval,'id','display');
1.159 albertel 1367: if ($constructtag) {
1.225 albertel 1368: #limiting ids to only letters numbers, and space
1.224 www 1369: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1370: $result = &Apache::edit::rebuild_tag($token);
1371: $result.=&Apache::edit::handle_insert();
1372: }
1373: }
1374: return $result;
1.11 albertel 1375: }
1376:
1377: sub end_part {
1.159 albertel 1378: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1379: &Apache::lonxml::debug("in end_part $target ");
1380: my $status=$Apache::inputtags::status['-1'];
1381: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1382: my $in_order_show=&ordered_show_check();
1.321 albertel 1383: my $result;
1384: if (!$Apache::lonxml::metamode) {
1385: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1386: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1387: }
1.312 albertel 1388: if ($target eq 'grade') {
1.249 albertel 1389: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1390: !$hidden && $in_order_show) {
1.311 foxr 1391: $result.=&Apache::inputtags::grade;
1.249 albertel 1392: } else {
1393: # move any submission data to .hidden
1394: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1395: }
1.283 albertel 1396: } elsif (($target eq 'web' || $target eq 'tex') &&
1397: !$hidden && $in_order_show) {
1.159 albertel 1398: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1399: $target);
1.212 albertel 1400: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1401: $gradestatus='';
1402: }
1.311 foxr 1403: $result.=$gradestatus;
1.265 sakharuk 1404: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1405: } elsif ($target eq 'edit') {
1.311 foxr 1406: $result.=&Apache::edit::end_table();
1.322 albertel 1407: } elsif ($target eq 'modified') {
1408: $result .= $token->[2];
1409: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 1410: }
1411: pop @Apache::inputtags::status;
1412: $Apache::inputtags::part='';
1.295 albertel 1413: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1414: return $result;
1.11 albertel 1415: }
1.1 albertel 1416:
1.25 albertel 1417: sub start_preduedate {
1.326 albertel 1418: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.332.2.2 albertel 1419: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1420: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1421: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1422: if (!$Apache::lonhomework::scantronmode &&
1423: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1424: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1425: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1426: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1427: }
1.24 albertel 1428: }
1.159 albertel 1429: return '';
1.24 albertel 1430: }
1431:
1.25 albertel 1432: sub end_preduedate {
1.159 albertel 1433: return '';
1.24 albertel 1434: }
1435:
1.25 albertel 1436: sub start_postanswerdate {
1.326 albertel 1437: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.332.2.2 albertel 1438: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade') {
1.300 albertel 1439: if ($Apache::lonhomework::scantronmode ||
1440: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.326 albertel 1441: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1442: }
1443: } elsif ($target eq 'tex') {
1.326 albertel 1444: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1445: }
1446: return '';
1.24 albertel 1447: }
1448:
1.25 albertel 1449: sub end_postanswerdate {
1.159 albertel 1450: return '';
1.24 albertel 1451: }
1452:
1.25 albertel 1453: sub start_notsolved {
1.326 albertel 1454: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1455: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.332.2.2 albertel 1456: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1457: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1458: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1459: if ($gradestatus =~ /^correct/ &&
1460: &Apache::response::show_answer()) {
1.159 albertel 1461: &Apache::lonxml::debug("skipping");
1.326 albertel 1462: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1463: }
1.24 albertel 1464: }
1.159 albertel 1465: return '';
1.24 albertel 1466: }
1467:
1.25 albertel 1468: sub end_notsolved {
1.159 albertel 1469: return '';
1.24 albertel 1470: }
1471:
1472: sub start_solved {
1.326 albertel 1473: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1474: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1475: $target eq 'tex') {
1476: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1477: if ($gradestatus !~ /^correct/ ||
1478: !&Apache::response::show_answer()) {
1.326 albertel 1479: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1480: }
1.24 albertel 1481: }
1.159 albertel 1482: return '';
1.24 albertel 1483: }
1484:
1485: sub end_solved {
1.248 albertel 1486: return '';
1487: }
1488:
1489: sub start_problemtype {
1.326 albertel 1490: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1491: my $result;
1.332.2.2 albertel 1492: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1493: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1494: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1495: if (!defined($mode)) { $mode='show'; }
1496: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1497: my $found=0;
1498: foreach my $type (split(',',$for)) {
1499: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1500: }
1501: if ($mode eq 'show' && !$found) {
1.326 albertel 1502: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1503: }
1504: if ($mode eq 'hide' && $found) {
1.326 albertel 1505: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1506: }
1507: } elsif ($target eq 'edit') {
1508: $result .=&Apache::edit::tag_start($target,$token);
1509: $result.=&Apache::edit::select_arg('Mode:','mode',
1510: [['show','Show'],
1511: ['hide','Hide']]
1512: ,$token);
1513: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1514: [ ['exam','Exam/Quiz Problem'],
1515: ['survey','Survey'],
1516: ['problem','Homework Problem'] ]
1517: ,$token);
1518: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1519: } elsif ($target eq 'modified') {
1520: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1521: $safeeval,'mode','for');
1522: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1523: }
1524: return $result;
1525: }
1526:
1527: sub end_problemtype {
1.159 albertel 1528: return '';
1.24 albertel 1529: }
1.34 albertel 1530:
1531: sub start_startouttext {
1.159 albertel 1532: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1533: my @result=(''.'');
1534: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1535: return (@result);
1.34 albertel 1536: }
1.159 albertel 1537:
1.34 albertel 1538: sub end_startouttext {
1.326 albertel 1539: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1540: my $result='';
1541: my $text='';
1542:
1543: if ($target eq 'edit') {
1.326 albertel 1544: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1545: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1546: <td>".&mt('Delete:').
1.159 albertel 1547: &Apache::edit::deletelist($target,$token)
1548: ."</td>
1.42 albertel 1549: <td>".
1.159 albertel 1550: &Apache::edit::insertlist($target,$token).
1551: &Apache::edit::end_row().
1552: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1553: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1554: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1555: }
1556: if ($target eq 'modified') {
1.219 albertel 1557: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1558: }
1559: if ($target eq 'tex') {
1560: $result .= '\noindent ';
1561: }
1562: return $result;
1.34 albertel 1563: }
1.159 albertel 1564:
1.34 albertel 1565: sub start_endouttext {
1.159 albertel 1566: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1567: my $result='';
1568: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1569: if ($target eq "modified") {
1570: $result='<endouttext />'.
1571: &Apache::edit::handle_insertafter('startouttext'); }
1572: return $result;
1.34 albertel 1573: }
1.159 albertel 1574:
1.34 albertel 1575: sub end_endouttext {
1.159 albertel 1576: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1577: my @result=('','');
1578: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1579: return (@result);
1.34 albertel 1580: }
1.159 albertel 1581:
1.45 albertel 1582: sub delete_startouttext {
1.326 albertel 1583: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1584: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1585: my $text=$$parser['-1']->get_text("/endouttext");
1586: my $ntoken=$$parser['-1']->get_token();
1587: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1588: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1589: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1590: # they did the last time round
1591: &Apache::lonxml::increasedepth($ntoken);
1592: &Apache::lonxml::decreasedepth($ntoken);
1593: return 1;
1.193 www 1594: }
1595:
1596: sub start_simpleeditbutton {
1597: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1598: my $result='';
1.284 albertel 1599: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1600: ($target eq 'web') &&
1.330 albertel 1601: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1602: my $url=$env{'request.noversionuri'};
1.193 www 1603: $url=~s/\?.*$//;
1.278 albertel 1604: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1605: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1606: '<a href="'.$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 1607: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1608: }
1609: return $result;
1610: }
1611:
1612: sub end_simpleeditbutton {
1613: return '';
1.45 albertel 1614: }
1.34 albertel 1615:
1.1 albertel 1616: 1;
1617: __END__
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