Annotation of loncom/homework/structuretags.pm, revision 1.332.2.4
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.332.2.4! albertel 4: # $Id: structuretags.pm,v 1.332.2.3 2006/04/20 19:08:41 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);
1.332.2.4! albertel 495: undef($Apache::lonhomework::default_type);
! 496: undef($Apache::lonhomework::type);
! 497: undef($Apache::lonhomework::problemstatus);
1.204 albertel 498: }
499:
500: sub reset_problem_globals {
501: my ($type)=@_;
502: undef(%Apache::lonhomework::history);
503: undef(%Apache::lonhomework::results);
504: undef($Apache::inputtags::part);
1.208 albertel 505: #don't undef this, lonhomework.pm takes care of this, we use this to
506: #detect if we try to do 2 problems in one file
507: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 508: undef($Apache::lonhomework::name);
1.332.2.4! albertel 509: undef($Apache::lonhomework::default_type);
! 510: undef($Apache::lonhomework::type);
! 511: undef($Apache::lonhomework::scantronmode);
! 512: undef($Apache::lonhomework::problemstatus);
! 513: undef($Apache::lonhomework::ignore_response_errors);
1.204 albertel 514: }
515:
1.241 albertel 516: sub set_problem_state {
1.240 albertel 517: my ($part)=@_;
1.284 albertel 518: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 519: $Apache::lonhomework::history{"resource.$part.solved"}=
520: 'correct_by_student';
521: }
522: }
523:
1.241 albertel 524: sub get_problem_status {
525: my ($part)=@_;
1.267 albertel 526: my $problem_status;
1.284 albertel 527: if ($env{'request.state'} eq 'construct' &&
528: defined($env{'form.problemstatus'})) {
529: $problem_status=$env{'form.problemstatus'};
1.267 albertel 530: } else {
531: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
532: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 533: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 534: }
535: return $problem_status;
536: }
537:
1.9 albertel 538: sub start_problem {
1.326 albertel 539: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 540:
1.311 foxr 541: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 542: if (!$Apache::lonxml::metamode) {
543: &Apache::lonxml::startredirection();
544: }
1.311 foxr 545:
1.308 foxr 546: # Problems don't nest and we don't allow more than one <problem> in
547: # a .problem file.
548: #
1.184 albertel 549: if ( $Apache::inputtags::part ne '' ||
550: $Apache::lonhomework::parsing_a_problem) {
551: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 552: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 553: return '';
554: }
1.184 albertel 555:
556: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 557: &init_problem_globals('problem');
1.166 albertel 558:
1.284 albertel 559: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 560: $Apache::lonhomework::scantronmode=1;
561: }
1.161 albertel 562:
1.246 albertel 563: &initialize_storage();
1.159 albertel 564: if ($target ne 'analyze') {
565: if ($target eq 'web') {
566: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 567: }
1.284 albertel 568: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 569: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 570: if (($env{'request.state'} eq 'construct') &&
571: defined($env{'form.problemtype'})) {
572: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 573: }
1.332 albertel 574: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 575: }
1.164 albertel 576: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 577: my $uri=$env{'request.uri'};
1.159 albertel 578: if ($uri=~/\.(\w+)$/) {
579: $Apache::lonhomework::type=$1;
580: &Apache::lonxml::debug("Using type of $1");
581: } else {
582: $Apache::lonhomework::type='problem';
583: &Apache::lonxml::debug("Using default type, problem, :$uri:");
584: }
1.87 albertel 585: }
1.301 albertel 586: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 587:
1.159 albertel 588: #added vars to the scripting enviroment
1.213 albertel 589: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 590: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 591: &Apache::run::run($expression,$safeeval);
1.159 albertel 592: my $status;
593: my $accessmsg;
594:
595: #should get back a <html> or the neccesary stuff to start XML/MathML
596: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
597: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.284 albertel 598: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 599:
600: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
601: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
602: $target eq 'tex') {
603: #handle exam checkout
604: if ($Apache::lonhomework::type eq 'exam') {
605: my $token=
606: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 607: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 608: $token=&Apache::lonxml::maketoken();
609: $Apache::lonhomework::history{"resource.0.outtoken"}=
610: $token;
611: }
612: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 613: }
1.284 albertel 614: if ($env{'form.markaccess'}) {
1.252 albertel 615: &Apache::lonnet::set_first_access('map');
616: }
1.159 albertel 617: #handle rand seed in construction space
618: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 619: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 620: if ($env{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 621: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
622: $rndseed.'" />'.
623: '<input type="submit" name="resetdata"
1.211 albertel 624: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 625: '<input type="hidden" name="username"
1.284 albertel 626: value="'.$env{'form.username'}.'" />';
627: if ($env{'user.adv'}) {
1.267 albertel 628: $form_tag_start.=
1.300 albertel 629: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 630: if (defined($env{'form.showallfoils'})) {
1.267 albertel 631: $form_tag_start.='checked="on"';
632: }
1.300 albertel 633: $form_tag_start.= ' />'.&mt(' Show All Foils').
634: '</label>';
1.267 albertel 635: }
636: $form_tag_start.='<hr />';
1.162 albertel 637: }
1.324 albertel 638:
639: ($status,$accessmsg,my $slot_name,my $slot) =
640: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 641: push (@Apache::inputtags::status,$status);
1.324 albertel 642:
1.159 albertel 643: my $expression='$external::datestatus="'.$status.'";';
644: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
645: &Apache::run::run($expression,$safeeval);
646: &Apache::lonxml::debug("Got $status");
1.324 albertel 647:
1.159 albertel 648: if (( $status eq 'CLOSED' ) ||
649: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 650: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 651: ( $status eq 'BANNED') ||
1.216 albertel 652: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 653: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 654: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 655: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
656: $style);
1.159 albertel 657: if ( $target eq "web" ) {
658: $result.= $head_tag_start.'</head>';
659: my $msg=$body_tag_start;
660: if ($status eq 'UNAVAILABLE') {
1.245 albertel 661: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 662: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 663: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 664: }
1.216 albertel 665: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 666: $msg.='The problem '.$accessmsg;
667: } elsif ($status eq 'UNCHECKEDOUT') {
668: $msg.=&checkout_msg;
1.252 albertel 669: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 670: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 671: } elsif ($status eq 'NOT_IN_A_SLOT') {
672: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 673: }
674: $result.=$msg.'<br />';
675: } elsif ($target eq 'tex') {
1.332 albertel 676: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
677: : '\begin{minipage}{\textwidth}';
678: $result.='\begin{document}\noindent \vskip 1 mm '.
679: $startminipage.'\vskip 0 mm';
1.159 albertel 680: if ($status eq 'UNAVAILABLE') {
1.211 albertel 681: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 682: } else {
1.211 albertel 683: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 684: }
685: }
1.324 albertel 686: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 687: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
688: $style);
1.324 albertel 689: if ($target eq 'web') {
690: $result .= $head_tag_start.'</head>';
691: $result .= $body_tag_start;
692: $result .= &Apache::bridgetask::proctor_validation_screen();
693: } elsif ($target eq 'grade') {
694: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
695: 'problem');
696: }
1.159 albertel 697: } elsif ($target eq 'web') {
698: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 699: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 700: $body_tag_start \n $form_tag_start".
1.227 albertel 701: '<input type="hidden" name="submitted" value="yes" />';
702: # create a page header and exit
1.284 albertel 703: if ($env{'request.state'} eq "construct") {
704: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 705: }
706: # if we are viewing someone else preserve that info
1.284 albertel 707: if (defined $env{'form.grade_symb'}) {
1.227 albertel 708: foreach my $field ('symb','courseid','domain','username') {
709: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 710: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 711: }
712: }
713: } elsif ($target eq 'tex') {
1.319 foxr 714: $result .= 'INSERTTEXFRONTMATTERHERE';
715:
1.99 sakharuk 716: }
1.159 albertel 717: } elsif ($target eq 'edit') {
718: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
719: &problem_edit_header();
1.226 albertel 720: $Apache::lonxml::warnings_error_header=
721: &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 722: my $temp=&Apache::edit::insertlist($target,$token);
723: $result.=$temp;
724: } elsif ($target eq 'modified') {
725: $result=$token->[4];
726: $result.=&Apache::edit::handle_insert();
727: } else {
728: # page_start returned a starting result, delete it if we don't need it
729: $result = '';
1.99 sakharuk 730: }
1.159 albertel 731: return $result;
1.9 albertel 732: }
733:
734: sub end_problem {
1.159 albertel 735: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 736: my $result;
1.310 foxr 737:
1.321 albertel 738: if (!$Apache::lonxml::metamode) {
739: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 740: $Apache::lonxml::post_evaluate=0;
1.321 albertel 741: }
1.319 foxr 742:
743: if ($target eq 'tex') {
1.321 albertel 744:
745: # Figure out the front matter and replace the
746: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
747: # this in end_problem because whether or not we display due
748: # dates depends on whether due dates have already been
749: # displayed in the problem parts.
750:
1.319 foxr 751: my $frontmatter = '';
752: my $startminipage = '';
753: if (not $env{'form.problem_split'}=~/yes/) {
754: $startminipage = '\begin{minipage}{\textwidth}';
755: }
756: my $id = $Apache::inputtags::part;
757: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
758: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
759: my @packages = split /,/,$packages;
760: my $allow_print_points = 0;
761: foreach my $partial_key (@packages) {
762: if ($partial_key=~m/^part_0$/) {
763: $allow_print_points=1;
764: }
765: }
766: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
767: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
768: if (lc($env{'course.'.$env{'request.course.id'}.
769: '.disableexampointprint'}) eq 'yes') {
770: $allow_print_points=0;
771: }
772: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
773: 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 ';
774: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
775: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
776:
777: # Figure out what the due date is and if we need to print
778: # it in the problem header. We have been logging the
779: # last due date written to file.
780:
781: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
782: my $duedate = POSIX::strftime("%c",localtime($duetime));
783: my $temp_file;
784: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
785:
786: # Figure out what the last printed due date is or set it
787: # to the epoch if no duedates have been printed.
788:
789: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
790: if (-e $filename) {
791: $temp_file = Apache::File->new($filename);
792: my @due_file = <$temp_file>;
793: $due_file_content = $due_file[$#due_file];
794: chomp $due_file_content;
795: }
796:
797: # We display the due date iff it is not the same as the last
798: # duedate in problem header ($due_file_content), and
799: # none of our parts displayed a duedate.
800: #
801: my $parts_with_displayduedate;
802: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
803: $parts_with_displayduedate =
804: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
805: } else {
806: $parts_with_displayduedate = 0;
807: }
808: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
809: $temp_file = Apache::File->new('>'.$filename);
810: print $temp_file "$duetime\n";
811: if (not $env{'request.symb'} =~ m/\.page_/) {
812: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
813: $frontmatter .= $begin_doc.
814: '\textit{Due date: '.$duedate.'} '.$toc_line;
815: } else {
816: $frontmatter.= $begin_doc.$toc_line;
817: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
818: }
819: } else {
820: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
821: }
822: } else {
823: if (not $env{'request.symb'} =~ m/\.page_/) {
824: $frontmatter .= $begin_doc.$toc_line;
825: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
826: } else {
827: $frontmatter .= '\vskip 1mm \\\\\\\\';
828: }
829: }
830: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
831: }
832:
1.159 albertel 833: my $status=$Apache::inputtags::status['-1'];
834: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
835: $target eq 'tex') {
1.249 albertel 836: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 837: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 838: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
839: &Apache::inputtags::grade;
1.324 albertel 840: } elsif ($status eq 'NEEDS_CHECKIN') {
841: # no need to grade, and don't want to hide data
1.249 albertel 842: } else {
843: # move any submission data to .hidden
844: &Apache::inputtags::hidealldata($Apache::inputtags::part);
845: }
1.159 albertel 846: } elsif ( ($target eq 'web' || $target eq 'tex') &&
847: $Apache::inputtags::part eq '0' &&
1.252 albertel 848: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 849: # if part is zero, no <part>s existed, so we need show the current
850: # grading status
851: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
852: $result.= $gradestatus;
853: }
854: if (
1.284 albertel 855: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 856: ($target eq 'answer') || ($target eq 'tex')
857: ) {
1.227 albertel 858: if ($target ne 'tex' &&
1.284 albertel 859: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 860: $result.="</form>";
861: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
1.159 albertel 862: }
863: if ($target eq 'web') {
1.281 albertel 864: $result.=&Apache::lonxml::xmlend().'</html>';
1.159 albertel 865: } elsif ($target eq 'tex') {
1.178 sakharuk 866: my $endminipage = '';
1.284 albertel 867: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 868: $endminipage = '\end{minipage}';
869: }
1.284 albertel 870: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 871: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 872: $result=~s/<\/html>//;
1.159 albertel 873: } else {
1.262 sakharuk 874: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 875: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 876: $result .= $endminipage.'\end{document} ';
877: } else {
878: $result .= '';
879: }
1.159 albertel 880: }
881: }
882: }
883: if ($target eq 'grade') {
884: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
885: &finalize_storage();
886: }
1.284 albertel 887: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
888: && $env{'form.answer_output_mode'} ne 'tex') {
1.294 albertel 889: $result.=&Apache::lonxml::xmlend().'</html>';
890: # normally we get it from above, but in CSTR
1.172 albertel 891: # we always show answer mode too.
1.159 albertel 892: }
893: } elsif ($target eq 'meta') {
894: if ($Apache::inputtags::part eq '0') {
1.179 albertel 895: @Apache::inputtags::response=();
1.159 albertel 896: $result=&Apache::response::mandatory_part_meta;
897: }
1.215 albertel 898: $result.=&Apache::response::meta_part_order();
1.258 albertel 899: $result.=&Apache::response::meta_response_order();
1.159 albertel 900: } elsif ($target eq 'edit') {
901: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 902: $result .= &problem_edit_footer();
1.320 albertel 903: } elsif ($target eq 'modified') {
904: $result .= $token->[2];
905: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 906: }
1.155 albertel 907:
1.284 albertel 908: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 909: &Apache::inputtags::check_for_duplicate_ids();
910: }
1.204 albertel 911:
912: &reset_problem_globals('problem');
1.159 albertel 913:
914: return $result;
1.48 albertel 915: }
916:
1.108 albertel 917:
1.48 albertel 918: sub start_library {
1.159 albertel 919: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
920: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 921: if ($$tagstack[0] eq 'library') {
922: &init_problem_globals('library');
923: $Apache::lonhomework::type='problem';
924: }
1.159 albertel 925: if ($target eq 'edit') {
926: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
927: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
928: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
929: &problem_edit_header();
930: my $temp=&Apache::edit::insertlist($target,$token);
931: $result.=$temp;
932: } elsif ($target eq 'modified') {
933: $result=$token->[4];
934: $result.=&Apache::edit::handle_insert();
935: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 936: $env{'request.state'} eq "construct" ) {
1.159 albertel 937: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
938: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
939: my $name=&get_resource_name($parstack,$safeeval);
940: my $rndseed=&setup_rndseed($safeeval);
941: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 942: $body_tag_start \n $form_tag_start".
1.159 albertel 943: '<input type="hidden" name="submitted" value="yes" />';
944: $result.=&problem_web_to_edit_header($rndseed);
945: }
946: return $result;
1.48 albertel 947: }
948:
949: sub end_library {
1.159 albertel 950: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
951: my $result='';
952: if ($target eq 'edit') {
953: $result=&problem_edit_footer();
954: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 955: $env{'request.state'} eq "construct") {
1.280 albertel 956: $result.='</form>'.&Apache::loncommon::endbodytag().
957: &Apache::lonxml::xmlend();
1.159 albertel 958: }
1.204 albertel 959: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 960: return $result;
1.197 www 961: }
962:
963: sub start_definetag {
1.326 albertel 964: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 965:
966: my $result;
967:
968: my $name = $token->[2]->{'name'};
1.326 albertel 969: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 970: if ($name=~/^\//) {
971: $result=
972: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
973: } else {
974: $result=
975: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
976: }
977: $skip=~s/\</\<\;/gs;
978: $skip=~s/\>/\>\;/gs;
979: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
980: return $result;
981: }
982:
983: sub end_definetag {
984: return '';
1.1 albertel 985: }
986:
987: sub start_block {
1.201 albertel 988: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 989:
990: my $result;
1.1 albertel 991:
1.332.2.2 albertel 992: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
993: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 994: my $code = $token->[2]->{'condition'};
1.201 albertel 995: if (defined($code)) {
1.137 albertel 996: if (!$Apache::lonxml::default_homework_loaded) {
997: &Apache::lonxml::default_homework_load($safeeval);
998: }
1.131 albertel 999: $result = &Apache::run::run($code,$safeeval);
1000: &Apache::lonxml::debug("block :$code: returned :$result:");
1001: } else {
1002: $result='1';
1003: }
1004: if ( ! $result ) {
1.201 albertel 1005: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1006: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1007: }
1008: $result='';
1009: } elsif ($target eq 'edit') {
1010: $result .=&Apache::edit::tag_start($target,$token);
1011: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1012: $token,40);
1013: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1014: } elsif ($target eq 'modified') {
1015: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1016: $safeeval,'condition');
1017: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1018: }
1.131 albertel 1019: return $result;
1.1 albertel 1020: }
1021:
1022: sub end_block {
1.167 www 1023: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1024: my $result;
1025: if ($target eq "edit") {
1026: $result.= &Apache::edit::tag_end($target,$token,'');
1027: }
1028: return $result;
1029: }
1030:
1031: sub start_languageblock {
1.201 albertel 1032: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1033:
1034: my $result;
1035:
1.332.2.2 albertel 1036: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1037: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1038: my $include = $token->[2]->{'include'};
1039: my $exclude = $token->[2]->{'exclude'};
1040: my %languages=&Apache::loncommon::display_languages();
1041: $result='1';
1042: if ($include) {
1043: $result='';
1044: foreach (split(/\,/,$include)) {
1045: if ($languages{$_}) { $result='1'; }
1046: }
1047: }
1048: if ($exclude) {
1049: foreach (split(/\,/,$exclude)) {
1050: if ($languages{$_}) { $result='0'; }
1051: }
1052: }
1053: if ( ! $result ) {
1054: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1055: $style);
1056: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1057: }
1058: $result='';
1.167 www 1059: } elsif ($target eq 'edit') {
1060: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1061: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1062: $token,40);
1.211 albertel 1063: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1064: $token,40);
1065: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1066: } elsif ($target eq 'modified') {
1067: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1068: $safeeval,'include',
1069: 'exclude');
1.167 www 1070: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1071: }
1072: return $result;
1073: }
1074:
1075: sub end_languageblock {
1.170 www 1076: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1077: my $result;
1.201 albertel 1078: if ($target eq "edit") {
1.170 www 1079: $result.= &Apache::edit::tag_end($target,$token,'');
1080: }
1081: return $result;
1082: }
1083:
1084: sub start_instructorcomment {
1.201 albertel 1085: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1086:
1087: my $result;
1088:
1.332.2.2 albertel 1089: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1090: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1091: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1092: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1093: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1094: $parser,$style);
1.170 www 1095: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1096: }
1097: $result='';
1098: } elsif ($target eq 'edit') {
1099: $result .=&Apache::edit::tag_start($target,$token);
1100: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1101: }
1102: return $result;
1103: }
1104:
1105: sub end_instructorcomment {
1.159 albertel 1106: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1107: my $result;
1108: if ($target eq "edit") {
1109: $result.= &Apache::edit::tag_end($target,$token,'');
1110: }
1111: return $result;
1.4 tsai 1112: }
1113:
1114: sub start_while {
1.326 albertel 1115: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1116:
1.160 albertel 1117: my $result;
1.332.2.2 albertel 1118: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1119: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1120: my $code = $token->[2]->{'condition'};
1.4 tsai 1121:
1.160 albertel 1122: push( @Apache::structuretags::whileconds, $code);
1123: if (!$Apache::lonxml::default_homework_loaded) {
1124: &Apache::lonxml::default_homework_load($safeeval);
1125: }
1126: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1127: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1128: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1129: push( @Apache::structuretags::whileline, $token->[5]);
1130: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1131: if ( $result ) {
1132: &Apache::lonxml::newparser($parser,\$bodytext);
1133: }
1134: } elsif ($target eq 'edit') {
1135: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1136: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1137: $token,40);
1138: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1139: } elsif ($target eq 'modified') {
1140: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1141: $safeeval,'condition');
1142: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1143: }
1.160 albertel 1144: return $result;
1.4 tsai 1145: }
1146:
1147: sub end_while {
1.159 albertel 1148: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1149: my $result;
1150:
1.332.2.2 albertel 1151: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1152: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1153: my $code = pop(@Apache::structuretags::whileconds);
1154: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1155: my $line = pop(@Apache::structuretags::whileline);
1156: my $return = &Apache::run::run($code,$safeeval);
1157: my $starttime=time;
1158: my $error=0;
1159: while ($return) {
1160: if (time-$starttime >
1161: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1162: #$return = 0; $error=1; next;
1.161 albertel 1163: }
1164: $result.=&Apache::scripttag::xmlparse($bodytext);
1165: $return = &Apache::run::run($code,$safeeval);
1166: }
1167: if ($error) {
1.270 albertel 1168: &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 1169: }
1170: } elsif ($target eq "edit") {
1171: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1172: }
1.160 albertel 1173: return $result;
1.1 albertel 1174: }
1.6 tsai 1175:
1.160 albertel 1176: # <randomlist show="1">
1.6 tsai 1177: # <tag1>..</tag1>
1178: # <tag2>..</tag2>
1179: # <tag3>..</tag3>
1.160 albertel 1180: # ...
1.6 tsai 1181: # </randomlist>
1182: sub start_randomlist {
1.326 albertel 1183: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1184: my $result;
1.332.2.2 albertel 1185: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1186: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1187: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1188: my $b_parser= HTML::LCParser->new(\$body);
1189: $b_parser->xml_mode(1);
1190: $b_parser->marked_sections(1);
1.159 albertel 1191: my $b_tok;
1192: my @randomlist;
1193: my $list_item;
1194: while($b_tok = $b_parser->get_token() ) {
1195: if($b_tok->[0] eq 'S') { # start tag
1196: # get content of the tag until matching end tag
1197: # get all text upto the matching tag
1198: # and push the content into @randomlist
1199: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1200: $b_parser);
1201: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1202: push(@randomlist,$list_item);
1203: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1204: # $list_item</b>";
1205: }
1206: if($b_tok->[0] eq 'T') { # text
1207: # what to do with text in between tags?
1208: # print "<b>TEXT $b_tok->[1]</b><br />";
1209: }
1210: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1211: # print "<b>END-TAG $b_tok->[1]</b><br />";
1212: # }
1213: }
1.303 albertel 1214: if (@randomlist) {
1215: my @idx_arr = (0 .. $#randomlist);
1216: &Apache::structuretags::shuffle(\@idx_arr);
1217: my $bodytext = '';
1218: my $show=$#randomlist;
1219: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1220: $showarg--;
1221: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1222: for(0 .. $show) {
1223: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1224: }
1225: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1226: }
1227: } elsif ($target eq 'edit' ) {
1228: $result .=&Apache::edit::tag_start($target,$token);
1229: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1230: $token,5);
1231: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1232: } elsif ($target eq 'modified' ) {
1233: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1234: $safeeval,'show');
1235: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1236: }
1237: return $result;
1.7 tsai 1238: }
1239:
1240: sub shuffle {
1241: my $a=shift;
1242: my $i;
1.303 albertel 1243: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1244: &Apache::response::pushrandomnumber();
1.159 albertel 1245: for($i=@$a;--$i;) {
1246: my $j=int(&Math::Random::random_uniform() * ($i+1));
1247: next if $i == $j;
1248: @$a[$i,$j] = @$a[$j,$i];
1249: }
1.251 albertel 1250: &Apache::response::poprandomnumber();
1.7 tsai 1251: }
1.6 tsai 1252: }
1253:
1254: sub end_randomlist {
1.159 albertel 1255: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1256: my $result;
1257: if ($target eq 'edit' ) {
1258: $result=&Apache::edit::tag_end($target,$token,
1259: 'End Randomly Parsed Block');
1260: }
1261: return $result;
1.6 tsai 1262: }
1263:
1.283 albertel 1264: sub ordered_show_check {
1265: my $last_part=$Apache::inputtags::partlist[-2];
1266: my $in_order=
1267: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1268: my $in_order_show=1;
1269: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1270: $in_order_show=&Apache::response::check_status($last_part);
1271: }
1272: return $in_order_show;
1273: }
1274:
1.11 albertel 1275: sub start_part {
1.326 albertel 1276: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1277: if (!$Apache::lonxml::metamode) {
1278: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1279: # duedates.
1280: }
1.159 albertel 1281: my $result='';
1282: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1283: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1284: $Apache::inputtags::part=$id;
1.177 albertel 1285: push(@Apache::inputtags::partlist,$id);
1286: @Apache::inputtags::response=();
1.159 albertel 1287: @Apache::inputtags::previous=();
1288: @Apache::inputtags::previous_version=();
1.241 albertel 1289: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1290: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1291: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1292: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1293: my $in_order_show=&ordered_show_check();
1.214 albertel 1294: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1295: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1296: &Apache::run::run($expression,$safeeval);
1.159 albertel 1297:
1298: if ($target eq 'meta') {
1.224 www 1299: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1300: return &Apache::response::mandatory_part_meta.
1301: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1302: } elsif ($target eq 'web' || $target eq 'grade' ||
1303: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1304: if ($hidden || !$in_order_show) {
1.326 albertel 1305: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1306: } else {
1307: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1308: push (@Apache::inputtags::status,$status);
1309: my $expression='$external::datestatus="'.$status.'";';
1310: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1311: &Apache::run::run($expression,$safeeval);
1.284 albertel 1312: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1313: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1314: }
1.216 albertel 1315: if (( $status eq 'CLOSED' ) ||
1316: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1317: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1318: ( $status eq 'BANNED') ||
1319: ( $status eq 'UNAVAILABLE') ||
1320: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1321: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1322: $style);
1.159 albertel 1323: if ( $target eq "web" ) {
1.211 albertel 1324: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1325: } elsif ( $target eq 'tex' ) {
1.284 albertel 1326: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1327: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1328: } else {
1.211 albertel 1329: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1330: }
1.159 albertel 1331: }
1332: } else {
1333: if ($target eq 'tex') {
1.284 albertel 1334: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1335: if ($$tagstack[-2] eq 'td') {
1336: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1337: } else {
1338: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1339: }
1.195 sakharuk 1340: }
1.159 albertel 1341: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1342: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1343: my @allkeys = split /,/,$allkeys;
1344: my $allow_print_points = 0;
1345: foreach my $partial_key (@allkeys) {
1.230 albertel 1346: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1347: if ($1 ne '0') {$allow_print_points=1;}
1348: }
1349: }
1.275 albertel 1350: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1351: if (defined($maxtries) && $maxtries < 0) {
1352: $allow_print_points=0;
1353: }
1.302 albertel 1354: if (lc($env{'course.'.$env{'request.course.id'}.
1355: '.disableexampointprint'}) eq 'yes') {
1356: $allow_print_points=0;
1357: }
1.222 sakharuk 1358: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1359: } elsif ($target eq 'web') {
1360: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1361: }
1362: }
1363: }
1364: } elsif ($target eq 'edit') {
1365: $result.=&Apache::edit::tag_start($target,$token);
1366: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1367: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1368: ' '.
1369: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1370: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1371: } elsif ($target eq 'modified') {
1372: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1373: $safeeval,'id','display');
1.159 albertel 1374: if ($constructtag) {
1.225 albertel 1375: #limiting ids to only letters numbers, and space
1.224 www 1376: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1377: $result = &Apache::edit::rebuild_tag($token);
1378: $result.=&Apache::edit::handle_insert();
1379: }
1380: }
1381: return $result;
1.11 albertel 1382: }
1383:
1384: sub end_part {
1.159 albertel 1385: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1386: &Apache::lonxml::debug("in end_part $target ");
1387: my $status=$Apache::inputtags::status['-1'];
1388: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1389: my $in_order_show=&ordered_show_check();
1.321 albertel 1390: my $result;
1391: if (!$Apache::lonxml::metamode) {
1392: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1393: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1394: }
1.312 albertel 1395: if ($target eq 'grade') {
1.249 albertel 1396: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1397: !$hidden && $in_order_show) {
1.311 foxr 1398: $result.=&Apache::inputtags::grade;
1.249 albertel 1399: } else {
1400: # move any submission data to .hidden
1401: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1402: }
1.283 albertel 1403: } elsif (($target eq 'web' || $target eq 'tex') &&
1404: !$hidden && $in_order_show) {
1.159 albertel 1405: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1406: $target);
1.212 albertel 1407: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1408: $gradestatus='';
1409: }
1.311 foxr 1410: $result.=$gradestatus;
1.265 sakharuk 1411: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1412: } elsif ($target eq 'edit') {
1.311 foxr 1413: $result.=&Apache::edit::end_table();
1.322 albertel 1414: } elsif ($target eq 'modified') {
1415: $result .= $token->[2];
1416: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 1417: }
1418: pop @Apache::inputtags::status;
1419: $Apache::inputtags::part='';
1.295 albertel 1420: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1421: return $result;
1.11 albertel 1422: }
1.1 albertel 1423:
1.25 albertel 1424: sub start_preduedate {
1.326 albertel 1425: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.332.2.2 albertel 1426: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1427: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1428: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1429: if (!$Apache::lonhomework::scantronmode &&
1430: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1431: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1432: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1433: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1434: }
1.24 albertel 1435: }
1.159 albertel 1436: return '';
1.24 albertel 1437: }
1438:
1.25 albertel 1439: sub end_preduedate {
1.159 albertel 1440: return '';
1.24 albertel 1441: }
1442:
1.25 albertel 1443: sub start_postanswerdate {
1.326 albertel 1444: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.332.2.2 albertel 1445: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade') {
1.300 albertel 1446: if ($Apache::lonhomework::scantronmode ||
1447: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.326 albertel 1448: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1449: }
1450: } elsif ($target eq 'tex') {
1.326 albertel 1451: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1452: }
1453: return '';
1.24 albertel 1454: }
1455:
1.25 albertel 1456: sub end_postanswerdate {
1.159 albertel 1457: return '';
1.24 albertel 1458: }
1459:
1.25 albertel 1460: sub start_notsolved {
1.326 albertel 1461: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1462: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.332.2.2 albertel 1463: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1464: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1465: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1466: if ($gradestatus =~ /^correct/ &&
1467: &Apache::response::show_answer()) {
1.159 albertel 1468: &Apache::lonxml::debug("skipping");
1.326 albertel 1469: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1470: }
1.24 albertel 1471: }
1.159 albertel 1472: return '';
1.24 albertel 1473: }
1474:
1.25 albertel 1475: sub end_notsolved {
1.159 albertel 1476: return '';
1.24 albertel 1477: }
1478:
1479: sub start_solved {
1.326 albertel 1480: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1481: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1482: $target eq 'tex') {
1483: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1484: if ($gradestatus !~ /^correct/ ||
1485: !&Apache::response::show_answer()) {
1.326 albertel 1486: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1487: }
1.24 albertel 1488: }
1.159 albertel 1489: return '';
1.24 albertel 1490: }
1491:
1492: sub end_solved {
1.248 albertel 1493: return '';
1494: }
1495:
1496: sub start_problemtype {
1.326 albertel 1497: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1498: my $result;
1.332.2.2 albertel 1499: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1500: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1501: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1502: if (!defined($mode)) { $mode='show'; }
1503: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1504: my $found=0;
1505: foreach my $type (split(',',$for)) {
1506: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1507: }
1508: if ($mode eq 'show' && !$found) {
1.326 albertel 1509: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1510: }
1511: if ($mode eq 'hide' && $found) {
1.326 albertel 1512: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1513: }
1514: } elsif ($target eq 'edit') {
1515: $result .=&Apache::edit::tag_start($target,$token);
1516: $result.=&Apache::edit::select_arg('Mode:','mode',
1517: [['show','Show'],
1518: ['hide','Hide']]
1519: ,$token);
1520: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1521: [ ['exam','Exam/Quiz Problem'],
1522: ['survey','Survey'],
1523: ['problem','Homework Problem'] ]
1524: ,$token);
1525: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1526: } elsif ($target eq 'modified') {
1527: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1528: $safeeval,'mode','for');
1529: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1530: }
1531: return $result;
1532: }
1533:
1534: sub end_problemtype {
1.159 albertel 1535: return '';
1.24 albertel 1536: }
1.34 albertel 1537:
1538: sub start_startouttext {
1.159 albertel 1539: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1540: my @result=(''.'');
1541: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1542: return (@result);
1.34 albertel 1543: }
1.159 albertel 1544:
1.34 albertel 1545: sub end_startouttext {
1.326 albertel 1546: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1547: my $result='';
1548: my $text='';
1549:
1550: if ($target eq 'edit') {
1.326 albertel 1551: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1552: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1553: <td>".&mt('Delete:').
1.159 albertel 1554: &Apache::edit::deletelist($target,$token)
1555: ."</td>
1.42 albertel 1556: <td>".
1.159 albertel 1557: &Apache::edit::insertlist($target,$token).
1558: &Apache::edit::end_row().
1559: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1560: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1561: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1562: }
1563: if ($target eq 'modified') {
1.219 albertel 1564: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1565: }
1566: if ($target eq 'tex') {
1567: $result .= '\noindent ';
1568: }
1569: return $result;
1.34 albertel 1570: }
1.159 albertel 1571:
1.34 albertel 1572: sub start_endouttext {
1.159 albertel 1573: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1574: my $result='';
1575: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1576: if ($target eq "modified") {
1577: $result='<endouttext />'.
1578: &Apache::edit::handle_insertafter('startouttext'); }
1579: return $result;
1.34 albertel 1580: }
1.159 albertel 1581:
1.34 albertel 1582: sub end_endouttext {
1.159 albertel 1583: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1584: my @result=('','');
1585: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1586: return (@result);
1.34 albertel 1587: }
1.159 albertel 1588:
1.45 albertel 1589: sub delete_startouttext {
1.326 albertel 1590: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1591: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1592: my $text=$$parser['-1']->get_text("/endouttext");
1593: my $ntoken=$$parser['-1']->get_token();
1594: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1595: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1596: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1597: # they did the last time round
1598: &Apache::lonxml::increasedepth($ntoken);
1599: &Apache::lonxml::decreasedepth($ntoken);
1600: return 1;
1.193 www 1601: }
1602:
1603: sub start_simpleeditbutton {
1604: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1605: my $result='';
1.284 albertel 1606: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1607: ($target eq 'web') &&
1.330 albertel 1608: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1609: my $url=$env{'request.noversionuri'};
1.193 www 1610: $url=~s/\?.*$//;
1.278 albertel 1611: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1612: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1613: '<a href="'.$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 1614: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1615: }
1616: return $result;
1617: }
1618:
1619: sub end_simpleeditbutton {
1620: return '';
1.45 albertel 1621: }
1.34 albertel 1622:
1.1 albertel 1623: 1;
1624: __END__
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