Annotation of loncom/homework/structuretags.pm, revision 1.333
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.333 ! albertel 4: # $Id: structuretags.pm,v 1.332 2006/01/27 23:36:48 albertel Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.133 sakharuk 30:
1.1 albertel 31: package Apache::structuretags;
32:
33: use strict;
34: use Apache::lonnet;
1.101 sakharuk 35: use Apache::File();
1.147 www 36: use Apache::lonmenu;
1.210 albertel 37: use Apache::lonlocal;
1.231 sakharuk 38: use Apache::lonxml;
1.267 albertel 39: use Time::HiRes qw( gettimeofday tv_interval );
1.78 harris41 40: BEGIN {
1.248 albertel 41: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));
1.10 albertel 42: }
43:
44: sub start_web {
1.326 albertel 45: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
46: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
1.200 albertel 47: if ($target eq 'web') {
48: return $bodytext;
1.159 albertel 49: }
50: return '';
1.10 albertel 51: }
52:
53: sub end_web {
1.44 ng 54: return '';
1.10 albertel 55: }
56:
57: sub start_tex {
1.326 albertel 58: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 59: my $result='';
1.326 albertel 60: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
1.200 albertel 61: if ($target eq 'tex') {
62: return $bodytext.' ';
1.159 albertel 63: }
1.198 sakharuk 64: return $result;;
1.10 albertel 65: }
66:
67: sub end_tex {
1.44 ng 68: return '';
1.9 albertel 69: }
70:
1.290 albertel 71: sub body_tag_start {
72: my ($target,$background,$bgcolor)=@_;
73: my $body_tag_start='<body onload="'.&Apache::lonmenu::loadevents().'" '.
74: 'onunload="'.&Apache::lonmenu::unloadevents().'" ';
75: if ($env{'browser.imagesuppress'} eq 'on') { $background=''; }
76: if ($background) {
1.306 albertel 77: &Apache::lonxml::extlink($background);
1.290 albertel 78: $body_tag_start.='background="'.$background.'" ';
79: } else {
80: if (($bgcolor) && ($env{'browser.blackwhite'} ne 'on')) {
81: $body_tag_start.='bgcolor="'.$bgcolor.'" ';
82: } else {
83: $body_tag_start.='bgcolor="#ffffff"';
84: }
85: }
86: if ($env{'browser.fontenhance'} eq 'on') {
87: $body_tag_start.=' style="font-size: x-large;" ';
88: }
89: $body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1);
1.297 albertel 90:
91: &Apache::lontexconvert::jsMath_reset();
1.290 albertel 92: if ($env{'environment.texengine'} eq 'jsMath') {
1.297 albertel 93: $body_tag_start.=&Apache::lontexconvert::jsMath_header();
1.290 albertel 94: }
95: return $body_tag_start;
96: }
1.291 albertel 97:
1.48 albertel 98: sub page_start {
1.159 albertel 99: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
100: my %found;
1.207 albertel 101: foreach my $taginside (@$tagstack) {
1.159 albertel 102: foreach my $taglookedfor ('html','body','form') {
103: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
104: }
105: }
106:
107: my $result;
108: my $head_tag_start;
109: if (!defined($found{'html'})) {
110: $result=&Apache::londefdef::start_html($target,$token,$tagstack,
111: $parstack,$parser,$safeeval);
1.254 www 112: $head_tag_start='<head>'.&Apache::lonmenu::registerurl(undef,$target).
1.261 www 113: &Apache::lonhtmlcommon::htmlareaheaders().
1.270 albertel 114: &Apache::lonhtmlcommon::spellheader().
115: &Apache::lonxml::fontsettings();
1.327 albertel 116: if ($target eq 'edit') {
117: $head_tag_start.=&Apache::edit::js_change_detection();
118: }
1.159 albertel 119: }
120: my $body_tag_start;
1.318 albertel 121: if (!defined($found{'body'}) && $env{'request.state'} eq 'construct') {
122: if ($env{'environment.remote'} eq 'off') {
123: if ($target eq 'web' || $target eq 'edit') {
124: $body_tag_start=&Apache::loncommon::bodytag();
125: $body_tag_start.=&Apache::lonxml::message_location();
126: }
127: } else {
128: if ($target eq 'web' || $target eq 'edit') {
129: $body_tag_start=&Apache::loncommon::bodytag(undef,undef,undef,1);
130: $body_tag_start.=&Apache::lonxml::message_location();
131: }
1.297 albertel 132: }
1.272 albertel 133: } elsif (!defined($found{'body'})) {
1.159 albertel 134: my $background=&Apache::lonxml::get_param('background',$parstack,
135: $safeeval);
1.290 albertel 136: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
137: $safeeval);
1.299 albertel 138: $body_tag_start=&body_tag_start($target,$background,$bgcolor);
1.291 albertel 139: if ( ($target eq 'web' || $target eq 'webgrade')
140: && $env{'request.state'} ne 'construct') {
1.165 albertel 141: my ($symb,undef,undef,undef,$publicuser)=
142: &Apache::lonxml::whichuser();
143: if ($symb eq '' && !$publicuser) {
1.159 albertel 144: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
1.211 albertel 145: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
1.159 albertel 146: $body_tag_start.=$help;
147: }
148: }
1.245 albertel 149: $body_tag_start.=&Apache::lonxml::message_location();
1.159 albertel 150: }
151: my $form_tag_start;
152: if (!defined($found{'form'})) {
1.281 albertel 153: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="POST" action="';
1.284 albertel 154: my $uri=$env{'request.uri'};
155: if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
1.327 albertel 156: $form_tag_start.=$uri.'" ';
157: if ($target eq 'edit') {
158: $form_tag_start.=&Apache::edit::form_change_detection();
159: }
160: $form_tag_start.='>';
1.159 albertel 161: }
162: return ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.105 albertel 163: }
164:
1.141 matthew 165: #use Time::HiRes();
1.105 albertel 166: sub get_resource_name {
1.159 albertel 167: my ($parstack,$safeeval)=@_;
1.204 albertel 168: if (defined($Apache::lonhomework::name)) {
169: return $Apache::lonhomework::name;
170: }
1.279 albertel 171: my ($symb)=&Apache::lonxml::whichuser();
172: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 173: if ($name eq '') {
174: $name=&Apache::lonnet::EXT('resource.title');
175: if ($name eq 'con_lost') { $name = ''; }
176: }
1.204 albertel 177: if ($name!~/\S+/) {
1.284 albertel 178: $name=$env{'request.uri'};
1.205 albertel 179: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 180: }
1.159 albertel 181: $Apache::lonhomework::name=$name;
182: return $name;
1.105 albertel 183: }
184:
185: sub setup_rndseed {
1.159 albertel 186: my ($safeeval)=@_;
187: my $rndseed;
1.162 albertel 188: my ($symb)=&Apache::lonxml::whichuser();
1.333 ! albertel 189: if ($env{'request.state'} eq "construct"
! 190: || $symb eq ''
! 191: || $Apache::lonhomework::type eq 'practice'
! 192: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 193: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 194: ['rndseed']);
1.284 albertel 195: $rndseed=$env{'form.rndseed'};
1.159 albertel 196: if (!$rndseed) {
1.162 albertel 197: $rndseed=$Apache::lonhomework::history{'rndseed'};
198: if (!$rndseed) {
199: $rndseed=time;
200: }
1.284 albertel 201: $env{'form.rndseed'}=$rndseed;
1.162 albertel 202: }
1.284 albertel 203: if ($env{'form.resetdata'} eq &mt('New Problem Variation') ||
204: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 205: srand(time);
206: $rndseed=int(rand(2100000000));
1.284 albertel 207: $env{'form.rndseed'}=$rndseed;
208: delete($env{'form.resetdata'});
209: delete($env{'form.newrandomization'});
1.159 albertel 210: }
1.187 albertel 211: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 212: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 213: }
1.247 albertel 214: if ($Apache::lonhomework::history{'resource.CODE'}) {
215: $rndseed=&Apache::lonnet::rndseed();
216: }
1.221 albertel 217: if ($safeeval) {
218: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 219: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 220: }
1.159 albertel 221: }
222: return $rndseed;
1.105 albertel 223: }
224:
1.268 albertel 225: sub remember_problem_state {
226: return '
1.284 albertel 227: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
228: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
229: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 230: }
231:
1.105 albertel 232: sub problem_edit_header {
1.268 albertel 233: return '<input type="hidden" name="submitted" value="edit" />'.
234: &Apache::structuretags::remember_problem_state().'
1.210 albertel 235: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 236: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
1.328 albertel 237: <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 238: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
239: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
240: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.260 albertel 241: &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
242: .'</td></tr></table>'.
1.282 albertel 243: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 244: }
245:
246: sub problem_edit_footer {
1.210 albertel 247: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 248: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
249: &Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).
1.280 albertel 250: "\n</form>\n".&Apache::loncommon::endbodytag()."\n</html>";
1.105 albertel 251: }
252:
1.235 albertel 253: sub option {
254: my ($value,$name) = @_;
255: my $result ="<option value='".$value."' ";
1.284 albertel 256: if ($env{'form.'.$name} eq $value) {
1.235 albertel 257: $result.=" selected='on' ";
258: }
259: $result.='>';
260: return $result;
261: }
262:
1.105 albertel 263: sub problem_web_to_edit_header {
1.159 albertel 264: my ($rndseed)=@_;
1.313 albertel 265: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
266: if (!$Apache::lonhomework::parsing_a_task) {
267: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
268: }
269: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 270: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
271: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 272: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 273: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 274: $rndseed.'"
1.270 albertel 275: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 276: <label><input type="checkbox" name="showallfoils" ';
1.315 albertel 277: my $show_all_foils_text =
278: ($Apache::lonhomework::parsing_a_task) ?
279: &mt(' Show All Instances')
280: : &mt(' Show All Foils');
281:
1.284 albertel 282: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.315 albertel 283: $result.= ' />'.$show_all_foils_text.
1.228 www 284: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.281 albertel 285: '</label><hr />';
1.313 albertel 286: if (!$Apache::lonhomework::parsing_a_task) {
287: $result.="
1.235 albertel 288: <nobr>
289: Problem Status:
290: <select name='problemstate'>
1.270 albertel 291: <option value=''></option>
1.235 albertel 292: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
293: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
294: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
295: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
296: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
297: </select>
298: </nobr>
299: <nobr>
300: Problem Type:
301: <select name='problemtype'>
1.270 albertel 302: <option value=''></option>
1.242 albertel 303: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
304: ".&option('problem','problemtype').&mt("Homework problem")."</option>
305: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 306: </select>
307: </nobr>
308: <nobr>
309: Feedback Mode:
310: <select name='problemstatus'>
311: <option value=''></option>
1.242 albertel 312: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
313: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 314: </select>
315: </nobr>
1.242 albertel 316: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 317: <hr />";
1.313 albertel 318: my $numtoanalyze=$env{'form.numtoanalyze'};
319: if (!$numtoanalyze) { $numtoanalyze=20; }
320: $result.= '<input type="submit" name="problemmode" value='.
321: &mt('"Calculate answers').'" /> for
1.136 albertel 322: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 323: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
324: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 325: '',undef,undef,300).
1.210 albertel 326: '<hr />';
1.313 albertel 327: }
1.159 albertel 328: return $result;
1.48 albertel 329: }
330:
1.65 albertel 331: sub initialize_storage {
1.159 albertel 332: %Apache::lonhomework::results=();
1.162 albertel 333: %Apache::lonhomework::history=();
1.159 albertel 334: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.333 ! albertel 335: if ($env{'request.state'} eq 'construct'
! 336: || $symb eq ''
! 337: || $Apache::lonhomework::type eq 'practice') {
! 338:
! 339: my $namespace = $symb || $env{'request.uri'};
! 340: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
! 341: $env{'form.resetdata'} eq &mt('New Problem Variation') ||
! 342: $env{'form.newrandomization'} eq &mt('New Randomization')) {
! 343: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
! 344: &Apache::lonxml::debug("Attempt reset");
! 345: }
1.159 albertel 346: %Apache::lonhomework::history=
1.333 ! albertel 347: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 348: my ($temp)=keys %Apache::lonhomework::history ;
349: &Apache::lonxml::debug("Return message of $temp");
350: } else {
351: %Apache::lonhomework::history=
352: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
353: }
354: #ignore error conditions
1.67 albertel 355: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 356: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 357: }
358:
359: # -------------------------------------------------------------finalize_storage
360: # Stores away the result has to a student's environment
361: # checks form.grade_ for specific values, other wises stores
362: # to the running users environment
1.285 raeburn 363: # Will increment totals for attempts, students, and corrects
364: # if running user has student role.
1.65 albertel 365: sub finalize_storage {
1.159 albertel 366: my $result;
1.289 albertel 367: if (%Apache::lonhomework::results) {
1.323 albertel 368: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
369: delete(@Apache::lonhomework::results{@remove});
1.159 albertel 370: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.333 ! albertel 371: if ($env{'request.state'} eq 'construct'
! 372: || $symb eq ''
! 373: || $Apache::lonhomework::type eq 'practice') {
! 374: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 375: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 376: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 ! albertel 377: $namespace,'',$domain,$name);
1.159 albertel 378: &Apache::lonxml::debug('Construct Store return message:'.$result);
379: } else {
380: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
381: $symb,$courseid,$domain,$name);
382: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 383: if ($env{'request.role'} =~/^st/) {
384: &store_aggregates($symb,$courseid);
385: }
1.159 albertel 386: }
1.323 albertel 387: } else {
388: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 389: }
1.159 albertel 390: return $result;
1.65 albertel 391: }
1.289 albertel 392: use Data::Dumper;
1.65 albertel 393:
1.285 raeburn 394: # -------------------------------------------------------------store_aggregates
395: # Sends hash of values to be incremented in nohist_resourcetracker.db
396: # for the course. Increments total number of attempts, unique students
397: # and corrects for each part for an instance of a problem, as appropriate.
398: sub store_aggregates {
399: my ($symb,$courseid) = @_;
1.286 albertel 400: my %aggregate;
401: my @parts;
1.288 albertel 402: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
403: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 404: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 405: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 406: push(@parts, $1);
1.285 raeburn 407: }
408: }
1.286 albertel 409: foreach my $part (@parts) {
410: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
411: eq 'APPROX_ANS' ||
412: $Apache::lonhomework::results{'resource.'.$part.'.award'}
413: eq 'EXACT_ANS') {
1.287 albertel 414: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 415: }
1.286 albertel 416: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 417: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 418: } else {
1.293 albertel 419: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 420: if ($last_reset) {
1.293 albertel 421: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 422: $aggregate{$symb."\0".$part."\0users"} = 1;
423: }
424: }
1.285 raeburn 425: }
1.287 albertel 426: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 427: }
1.292 raeburn 428: if (keys (%aggregate) > 0) {
1.289 albertel 429: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 430: $cdomain,$cname);
431: }
432: }
1.289 albertel 433:
1.65 albertel 434: sub checkout_msg {
1.211 albertel 435: my %lt=&Apache::lonlocal::texthash(
436: 'resource'=>'The resource needs to be checked out',
437: '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.',
438: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
439: 'checkout'=>'Check out Exam for Viewing',
440: 'checkout?'=>'Check out Exam?');
1.159 albertel 441: return (<<ENDCHECKOUT);
1.211 albertel 442: <h2>$lt{'resource'}</h2>
443: <p>$lt{'id_expln'}</p>
444: <font color="red">
445: <p>$lt{'warning'}</p>
1.91 albertel 446: </font>
1.284 albertel 447: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.91 albertel 448: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 449: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 450: </form>
451: ENDCHECKOUT
452: }
453:
1.252 albertel 454: sub firstaccess_msg {
1.253 albertel 455: my ($time,$symb)=@_;
456: my ($map)=&Apache::lonnet::decode_symb($symb);
457: my $foldertitle=&Apache::lonnet::gettitle($map);
458: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.252 albertel 459: return (<<ENDCHECKOUT);
1.253 albertel 460: <h2>The resources in "$foldertitle" are open for a limited time. Once you click the 'Show Resource' button below you have $time to complete all resources "$foldertitle".</h2>
1.284 albertel 461: <form name="markaccess" method="POST" action="$env{'request.uri'}">
1.252 albertel 462: <input type="hidden" name="markaccess" value="yes" />
463: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
464: </form>
465: ENDCHECKOUT
466: }
467:
1.204 albertel 468: sub init_problem_globals {
469: my ($type)=@_;
470: #initialize globals
1.308 foxr 471: # For problems, we start out in part 0 (outside a <part> tag).
472: # and part 0 is used to describe the main body of the <problem>
473: #
1.204 albertel 474: if ($type eq 'problem') {
475: $Apache::inputtags::part='0';
476: @Apache::inputtags::partlist=('0');
1.266 albertel 477: $Apache::lonhomework::problemstatus=&get_problem_status('0');
478: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 479:
1.266 albertel 480: } elsif ($type eq 'library') {
1.204 albertel 481: $Apache::inputtags::part='';
482: @Apache::inputtags::partlist=();
483: $Apache::lonhomework::problemstatus='';
1.266 albertel 484: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 485:
1.304 albertel 486: } elsif ($type eq 'Task') {
487: $Apache::inputtags::part='0';
488: @Apache::inputtags::partlist=('0');
489: $Apache::lonhomework::problemstatus='';
490: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 491: }
492: @Apache::inputtags::responselist = ();
493: @Apache::inputtags::importlist = ();
494: @Apache::inputtags::previous=();
495: @Apache::inputtags::previous_version=();
496: $Apache::structuretags::printanswer='No';
497: @Apache::structuretags::whileconds=();
498: @Apache::structuretags::whilebody=();
499: @Apache::structuretags::whileline=();
500: $Apache::lonhomework::scantronmode=0;
501: undef($Apache::lonhomework::name);
502:
503: }
504:
505: sub reset_problem_globals {
506: my ($type)=@_;
507: undef(%Apache::lonhomework::history);
508: undef(%Apache::lonhomework::results);
509: undef($Apache::inputtags::part);
1.208 albertel 510: #don't undef this, lonhomework.pm takes care of this, we use this to
511: #detect if we try to do 2 problems in one file
512: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 513: undef($Apache::lonhomework::name);
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 ($symb)=&Apache::lonxml::whichuser();
1.333 ! albertel 620: if ($env{'request.state'} ne "construct" &&
! 621: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 622: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
623: $rndseed.'" />'.
624: '<input type="submit" name="resetdata"
1.211 albertel 625: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 626: '<input type="hidden" name="username"
1.284 albertel 627: value="'.$env{'form.username'}.'" />';
1.333 ! albertel 628: if ($env{'request.role.adv'}) {
1.267 albertel 629: $form_tag_start.=
1.300 albertel 630: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 631: if (defined($env{'form.showallfoils'})) {
1.267 albertel 632: $form_tag_start.='checked="on"';
633: }
1.300 albertel 634: $form_tag_start.= ' />'.&mt(' Show All Foils').
635: '</label>';
1.267 albertel 636: }
637: $form_tag_start.='<hr />';
1.162 albertel 638: }
1.324 albertel 639:
640: ($status,$accessmsg,my $slot_name,my $slot) =
641: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 642: push (@Apache::inputtags::status,$status);
1.324 albertel 643:
1.159 albertel 644: my $expression='$external::datestatus="'.$status.'";';
645: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
646: &Apache::run::run($expression,$safeeval);
647: &Apache::lonxml::debug("Got $status");
1.324 albertel 648:
1.159 albertel 649: if (( $status eq 'CLOSED' ) ||
650: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 651: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 652: ( $status eq 'BANNED') ||
1.216 albertel 653: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 654: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 655: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 656: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
657: $style);
1.159 albertel 658: if ( $target eq "web" ) {
659: $result.= $head_tag_start.'</head>';
660: my $msg=$body_tag_start;
661: if ($status eq 'UNAVAILABLE') {
1.245 albertel 662: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 663: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 664: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 665: }
1.216 albertel 666: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 667: $msg.='The problem '.$accessmsg;
668: } elsif ($status eq 'UNCHECKEDOUT') {
669: $msg.=&checkout_msg;
1.252 albertel 670: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 671: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 672: } elsif ($status eq 'NOT_IN_A_SLOT') {
673: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 674: }
675: $result.=$msg.'<br />';
676: } elsif ($target eq 'tex') {
1.332 albertel 677: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
678: : '\begin{minipage}{\textwidth}';
679: $result.='\begin{document}\noindent \vskip 1 mm '.
680: $startminipage.'\vskip 0 mm';
1.159 albertel 681: if ($status eq 'UNAVAILABLE') {
1.211 albertel 682: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 683: } else {
1.211 albertel 684: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 685: }
686: }
1.324 albertel 687: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 688: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
689: $style);
1.324 albertel 690: if ($target eq 'web') {
691: $result .= $head_tag_start.'</head>';
692: $result .= $body_tag_start;
693: $result .= &Apache::bridgetask::proctor_validation_screen();
694: } elsif ($target eq 'grade') {
695: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
696: 'problem');
697: }
1.159 albertel 698: } elsif ($target eq 'web') {
699: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 700: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 701: $body_tag_start \n $form_tag_start".
1.227 albertel 702: '<input type="hidden" name="submitted" value="yes" />';
703: # create a page header and exit
1.284 albertel 704: if ($env{'request.state'} eq "construct") {
705: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 706: }
707: # if we are viewing someone else preserve that info
1.284 albertel 708: if (defined $env{'form.grade_symb'}) {
1.227 albertel 709: foreach my $field ('symb','courseid','domain','username') {
710: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 711: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 712: }
713: }
714: } elsif ($target eq 'tex') {
1.319 foxr 715: $result .= 'INSERTTEXFRONTMATTERHERE';
716:
1.99 sakharuk 717: }
1.159 albertel 718: } elsif ($target eq 'edit') {
719: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
720: &problem_edit_header();
1.226 albertel 721: $Apache::lonxml::warnings_error_header=
722: &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 723: my $temp=&Apache::edit::insertlist($target,$token);
724: $result.=$temp;
725: } elsif ($target eq 'modified') {
726: $result=$token->[4];
727: $result.=&Apache::edit::handle_insert();
728: } else {
729: # page_start returned a starting result, delete it if we don't need it
730: $result = '';
1.99 sakharuk 731: }
1.159 albertel 732: return $result;
1.9 albertel 733: }
734:
735: sub end_problem {
1.159 albertel 736: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 737: my $result;
1.310 foxr 738:
1.321 albertel 739: if (!$Apache::lonxml::metamode) {
740: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 741: $Apache::lonxml::post_evaluate=0;
1.321 albertel 742: }
1.319 foxr 743:
744: if ($target eq 'tex') {
1.321 albertel 745:
746: # Figure out the front matter and replace the
747: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
748: # this in end_problem because whether or not we display due
749: # dates depends on whether due dates have already been
750: # displayed in the problem parts.
751:
1.319 foxr 752: my $frontmatter = '';
753: my $startminipage = '';
754: if (not $env{'form.problem_split'}=~/yes/) {
755: $startminipage = '\begin{minipage}{\textwidth}';
756: }
757: my $id = $Apache::inputtags::part;
758: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
759: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
760: my @packages = split /,/,$packages;
761: my $allow_print_points = 0;
762: foreach my $partial_key (@packages) {
763: if ($partial_key=~m/^part_0$/) {
764: $allow_print_points=1;
765: }
766: }
767: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
768: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
769: if (lc($env{'course.'.$env{'request.course.id'}.
770: '.disableexampointprint'}) eq 'yes') {
771: $allow_print_points=0;
772: }
773: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
774: 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 ';
775: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
776: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
777:
778: # Figure out what the due date is and if we need to print
779: # it in the problem header. We have been logging the
780: # last due date written to file.
781:
782: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
783: my $duedate = POSIX::strftime("%c",localtime($duetime));
784: my $temp_file;
785: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
786:
787: # Figure out what the last printed due date is or set it
788: # to the epoch if no duedates have been printed.
789:
790: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
791: if (-e $filename) {
792: $temp_file = Apache::File->new($filename);
793: my @due_file = <$temp_file>;
794: $due_file_content = $due_file[$#due_file];
795: chomp $due_file_content;
796: }
797:
798: # We display the due date iff it is not the same as the last
799: # duedate in problem header ($due_file_content), and
800: # none of our parts displayed a duedate.
801: #
802: my $parts_with_displayduedate;
803: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
804: $parts_with_displayduedate =
805: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
806: } else {
807: $parts_with_displayduedate = 0;
808: }
809: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
810: $temp_file = Apache::File->new('>'.$filename);
811: print $temp_file "$duetime\n";
812: if (not $env{'request.symb'} =~ m/\.page_/) {
813: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
814: $frontmatter .= $begin_doc.
815: '\textit{Due date: '.$duedate.'} '.$toc_line;
816: } else {
817: $frontmatter.= $begin_doc.$toc_line;
818: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
819: }
820: } else {
821: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
822: }
823: } else {
824: if (not $env{'request.symb'} =~ m/\.page_/) {
825: $frontmatter .= $begin_doc.$toc_line;
826: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
827: } else {
828: $frontmatter .= '\vskip 1mm \\\\\\\\';
829: }
830: }
831: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
832: }
833:
1.159 albertel 834: my $status=$Apache::inputtags::status['-1'];
835: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
836: $target eq 'tex') {
1.249 albertel 837: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 838: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 839: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
840: &Apache::inputtags::grade;
1.324 albertel 841: } elsif ($status eq 'NEEDS_CHECKIN') {
842: # no need to grade, and don't want to hide data
1.249 albertel 843: } else {
844: # move any submission data to .hidden
845: &Apache::inputtags::hidealldata($Apache::inputtags::part);
846: }
1.159 albertel 847: } elsif ( ($target eq 'web' || $target eq 'tex') &&
848: $Apache::inputtags::part eq '0' &&
1.252 albertel 849: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 850: # if part is zero, no <part>s existed, so we need show the current
851: # grading status
852: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
853: $result.= $gradestatus;
854: }
855: if (
1.284 albertel 856: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 857: ($target eq 'answer') || ($target eq 'tex')
858: ) {
1.227 albertel 859: if ($target ne 'tex' &&
1.284 albertel 860: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 861: $result.="</form>";
862: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
1.159 albertel 863: }
864: if ($target eq 'web') {
1.281 albertel 865: $result.=&Apache::lonxml::xmlend().'</html>';
1.159 albertel 866: } elsif ($target eq 'tex') {
1.178 sakharuk 867: my $endminipage = '';
1.284 albertel 868: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 869: $endminipage = '\end{minipage}';
870: }
1.284 albertel 871: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 872: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 873: $result=~s/<\/html>//;
1.159 albertel 874: } else {
1.262 sakharuk 875: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 876: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 877: $result .= $endminipage.'\end{document} ';
878: } else {
879: $result .= '';
880: }
1.159 albertel 881: }
882: }
883: }
884: if ($target eq 'grade') {
885: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
886: &finalize_storage();
887: }
1.284 albertel 888: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
889: && $env{'form.answer_output_mode'} ne 'tex') {
1.294 albertel 890: $result.=&Apache::lonxml::xmlend().'</html>';
891: # normally we get it from above, but in CSTR
1.172 albertel 892: # we always show answer mode too.
1.159 albertel 893: }
894: } elsif ($target eq 'meta') {
895: if ($Apache::inputtags::part eq '0') {
1.179 albertel 896: @Apache::inputtags::response=();
1.159 albertel 897: $result=&Apache::response::mandatory_part_meta;
898: }
1.215 albertel 899: $result.=&Apache::response::meta_part_order();
1.258 albertel 900: $result.=&Apache::response::meta_response_order();
1.159 albertel 901: } elsif ($target eq 'edit') {
902: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 903: $result .= &problem_edit_footer();
1.320 albertel 904: } elsif ($target eq 'modified') {
905: $result .= $token->[2];
906: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 907: }
1.155 albertel 908:
1.284 albertel 909: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 910: &Apache::inputtags::check_for_duplicate_ids();
911: }
1.204 albertel 912:
913: &reset_problem_globals('problem');
1.159 albertel 914:
915: return $result;
1.48 albertel 916: }
917:
1.108 albertel 918:
1.48 albertel 919: sub start_library {
1.159 albertel 920: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
921: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 922: if ($$tagstack[0] eq 'library') {
923: &init_problem_globals('library');
924: $Apache::lonhomework::type='problem';
925: }
1.159 albertel 926: if ($target eq 'edit') {
927: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
928: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
929: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
930: &problem_edit_header();
931: my $temp=&Apache::edit::insertlist($target,$token);
932: $result.=$temp;
933: } elsif ($target eq 'modified') {
934: $result=$token->[4];
935: $result.=&Apache::edit::handle_insert();
936: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 937: $env{'request.state'} eq "construct" ) {
1.159 albertel 938: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
939: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
940: my $name=&get_resource_name($parstack,$safeeval);
941: my $rndseed=&setup_rndseed($safeeval);
942: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 943: $body_tag_start \n $form_tag_start".
1.159 albertel 944: '<input type="hidden" name="submitted" value="yes" />';
945: $result.=&problem_web_to_edit_header($rndseed);
946: }
947: return $result;
1.48 albertel 948: }
949:
950: sub end_library {
1.159 albertel 951: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
952: my $result='';
953: if ($target eq 'edit') {
954: $result=&problem_edit_footer();
955: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 956: $env{'request.state'} eq "construct") {
1.280 albertel 957: $result.='</form>'.&Apache::loncommon::endbodytag().
958: &Apache::lonxml::xmlend();
1.159 albertel 959: }
1.204 albertel 960: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 961: return $result;
1.197 www 962: }
963:
964: sub start_definetag {
1.326 albertel 965: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 966:
967: my $result;
968:
969: my $name = $token->[2]->{'name'};
1.326 albertel 970: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 971: if ($name=~/^\//) {
972: $result=
973: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
974: } else {
975: $result=
976: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
977: }
978: $skip=~s/\</\<\;/gs;
979: $skip=~s/\>/\>\;/gs;
980: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
981: return $result;
982: }
983:
984: sub end_definetag {
985: return '';
1.1 albertel 986: }
987:
988: sub start_block {
1.201 albertel 989: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 990:
991: my $result;
1.1 albertel 992:
1.160 albertel 993: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 994: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 995: my $code = $token->[2]->{'condition'};
1.201 albertel 996: if (defined($code)) {
1.137 albertel 997: if (!$Apache::lonxml::default_homework_loaded) {
998: &Apache::lonxml::default_homework_load($safeeval);
999: }
1.131 albertel 1000: $result = &Apache::run::run($code,$safeeval);
1001: &Apache::lonxml::debug("block :$code: returned :$result:");
1002: } else {
1003: $result='1';
1004: }
1005: if ( ! $result ) {
1.201 albertel 1006: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1007: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1008: }
1009: $result='';
1010: } elsif ($target eq 'edit') {
1011: $result .=&Apache::edit::tag_start($target,$token);
1012: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1013: $token,40);
1014: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1015: } elsif ($target eq 'modified') {
1016: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1017: $safeeval,'condition');
1018: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1019: }
1.131 albertel 1020: return $result;
1.1 albertel 1021: }
1022:
1023: sub end_block {
1.167 www 1024: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1025: my $result;
1026: if ($target eq "edit") {
1027: $result.= &Apache::edit::tag_end($target,$token,'');
1028: }
1029: return $result;
1030: }
1031:
1032: sub start_languageblock {
1.201 albertel 1033: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1034:
1035: my $result;
1036:
1037: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1038: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 1039: my $include = $token->[2]->{'include'};
1040: my $exclude = $token->[2]->{'exclude'};
1041: my %languages=&Apache::loncommon::display_languages();
1042: $result='1';
1043: if ($include) {
1044: $result='';
1045: foreach (split(/\,/,$include)) {
1046: if ($languages{$_}) { $result='1'; }
1047: }
1048: }
1049: if ($exclude) {
1050: foreach (split(/\,/,$exclude)) {
1051: if ($languages{$_}) { $result='0'; }
1052: }
1053: }
1054: if ( ! $result ) {
1055: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1056: $style);
1057: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1058: }
1059: $result='';
1.167 www 1060: } elsif ($target eq 'edit') {
1061: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1062: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1063: $token,40);
1.211 albertel 1064: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1065: $token,40);
1066: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1067: } elsif ($target eq 'modified') {
1068: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1069: $safeeval,'include',
1070: 'exclude');
1.167 www 1071: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1072: }
1073: return $result;
1074: }
1075:
1076: sub end_languageblock {
1.170 www 1077: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1078: my $result;
1.201 albertel 1079: if ($target eq "edit") {
1.170 www 1080: $result.= &Apache::edit::tag_end($target,$token,'');
1081: }
1082: return $result;
1083: }
1084:
1085: sub start_instructorcomment {
1.201 albertel 1086: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1087:
1088: my $result;
1089:
1090: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1091: $target eq 'tex' || $target eq 'analyze') {
1.284 albertel 1092: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1093: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1094: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1095: $parser,$style);
1.170 www 1096: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1097: }
1098: $result='';
1099: } elsif ($target eq 'edit') {
1100: $result .=&Apache::edit::tag_start($target,$token);
1101: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1102: }
1103: return $result;
1104: }
1105:
1106: sub end_instructorcomment {
1.159 albertel 1107: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1108: my $result;
1109: if ($target eq "edit") {
1110: $result.= &Apache::edit::tag_end($target,$token,'');
1111: }
1112: return $result;
1.4 tsai 1113: }
1114:
1115: sub start_while {
1.326 albertel 1116: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1117:
1.160 albertel 1118: my $result;
1.161 albertel 1119: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 1120: $target eq 'tex' || $target eq 'analyze') {
1121: my $code = $token->[2]->{'condition'};
1.4 tsai 1122:
1.160 albertel 1123: push( @Apache::structuretags::whileconds, $code);
1124: if (!$Apache::lonxml::default_homework_loaded) {
1125: &Apache::lonxml::default_homework_load($safeeval);
1126: }
1127: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1128: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1129: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1130: push( @Apache::structuretags::whileline, $token->[5]);
1131: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1132: if ( $result ) {
1133: &Apache::lonxml::newparser($parser,\$bodytext);
1134: }
1135: } elsif ($target eq 'edit') {
1136: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1137: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1138: $token,40);
1139: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1140: } elsif ($target eq 'modified') {
1141: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1142: $safeeval,'condition');
1143: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1144: }
1.160 albertel 1145: return $result;
1.4 tsai 1146: }
1147:
1148: sub end_while {
1.159 albertel 1149: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1150: my $result;
1151:
1152: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1153: $target eq 'tex' || $target eq 'analyze') {
1154: my $code = pop(@Apache::structuretags::whileconds);
1155: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1156: my $line = pop(@Apache::structuretags::whileline);
1157: my $return = &Apache::run::run($code,$safeeval);
1158: my $starttime=time;
1159: my $error=0;
1160: while ($return) {
1161: if (time-$starttime >
1162: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1163: #$return = 0; $error=1; next;
1.161 albertel 1164: }
1165: $result.=&Apache::scripttag::xmlparse($bodytext);
1166: $return = &Apache::run::run($code,$safeeval);
1167: }
1168: if ($error) {
1.270 albertel 1169: &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 1170: }
1171: } elsif ($target eq "edit") {
1172: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1173: }
1.160 albertel 1174: return $result;
1.1 albertel 1175: }
1.6 tsai 1176:
1.160 albertel 1177: # <randomlist show="1">
1.6 tsai 1178: # <tag1>..</tag1>
1179: # <tag2>..</tag2>
1180: # <tag3>..</tag3>
1.160 albertel 1181: # ...
1.6 tsai 1182: # </randomlist>
1183: sub start_randomlist {
1.326 albertel 1184: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1185: my $result;
1186: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1187: $target eq 'tex' || $target eq 'analyze') {
1.331 albertel 1188: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1189: my $b_parser= HTML::LCParser->new(\$body);
1190: $b_parser->xml_mode(1);
1191: $b_parser->marked_sections(1);
1.159 albertel 1192: my $b_tok;
1193: my @randomlist;
1194: my $list_item;
1195: while($b_tok = $b_parser->get_token() ) {
1196: if($b_tok->[0] eq 'S') { # start tag
1197: # get content of the tag until matching end tag
1198: # get all text upto the matching tag
1199: # and push the content into @randomlist
1200: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1201: $b_parser);
1202: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1203: push(@randomlist,$list_item);
1204: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1205: # $list_item</b>";
1206: }
1207: if($b_tok->[0] eq 'T') { # text
1208: # what to do with text in between tags?
1209: # print "<b>TEXT $b_tok->[1]</b><br />";
1210: }
1211: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1212: # print "<b>END-TAG $b_tok->[1]</b><br />";
1213: # }
1214: }
1.303 albertel 1215: if (@randomlist) {
1216: my @idx_arr = (0 .. $#randomlist);
1217: &Apache::structuretags::shuffle(\@idx_arr);
1218: my $bodytext = '';
1219: my $show=$#randomlist;
1220: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1221: $showarg--;
1222: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1223: for(0 .. $show) {
1224: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1225: }
1226: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1227: }
1228: } elsif ($target eq 'edit' ) {
1229: $result .=&Apache::edit::tag_start($target,$token);
1230: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1231: $token,5);
1232: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1233: } elsif ($target eq 'modified' ) {
1234: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1235: $safeeval,'show');
1236: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1237: }
1238: return $result;
1.7 tsai 1239: }
1240:
1241: sub shuffle {
1242: my $a=shift;
1243: my $i;
1.303 albertel 1244: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1245: &Apache::response::pushrandomnumber();
1.159 albertel 1246: for($i=@$a;--$i;) {
1247: my $j=int(&Math::Random::random_uniform() * ($i+1));
1248: next if $i == $j;
1249: @$a[$i,$j] = @$a[$j,$i];
1250: }
1.251 albertel 1251: &Apache::response::poprandomnumber();
1.7 tsai 1252: }
1.6 tsai 1253: }
1254:
1255: sub end_randomlist {
1.159 albertel 1256: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1257: my $result;
1258: if ($target eq 'edit' ) {
1259: $result=&Apache::edit::tag_end($target,$token,
1260: 'End Randomly Parsed Block');
1261: }
1262: return $result;
1.6 tsai 1263: }
1264:
1.283 albertel 1265: sub ordered_show_check {
1266: my $last_part=$Apache::inputtags::partlist[-2];
1267: my $in_order=
1268: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1269: my $in_order_show=1;
1270: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1271: $in_order_show=&Apache::response::check_status($last_part);
1272: }
1273: return $in_order_show;
1274: }
1275:
1.11 albertel 1276: sub start_part {
1.326 albertel 1277: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1278: if (!$Apache::lonxml::metamode) {
1279: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1280: # duedates.
1281: }
1.159 albertel 1282: my $result='';
1283: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1284: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1285: $Apache::inputtags::part=$id;
1.177 albertel 1286: push(@Apache::inputtags::partlist,$id);
1287: @Apache::inputtags::response=();
1.159 albertel 1288: @Apache::inputtags::previous=();
1289: @Apache::inputtags::previous_version=();
1.241 albertel 1290: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1291: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1292: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1293: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1294: my $in_order_show=&ordered_show_check();
1.214 albertel 1295: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1296: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1297: &Apache::run::run($expression,$safeeval);
1.159 albertel 1298:
1299: if ($target eq 'meta') {
1.224 www 1300: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1301: return &Apache::response::mandatory_part_meta.
1302: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1303: } elsif ($target eq 'web' || $target eq 'grade' ||
1304: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1305: if ($hidden || !$in_order_show) {
1.326 albertel 1306: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1307: } else {
1308: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1309: push (@Apache::inputtags::status,$status);
1310: my $expression='$external::datestatus="'.$status.'";';
1311: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1312: &Apache::run::run($expression,$safeeval);
1.284 albertel 1313: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1314: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1315: }
1.216 albertel 1316: if (( $status eq 'CLOSED' ) ||
1317: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1318: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1319: ( $status eq 'BANNED') ||
1320: ( $status eq 'UNAVAILABLE') ||
1321: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1322: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1323: $style);
1.159 albertel 1324: if ( $target eq "web" ) {
1.211 albertel 1325: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1326: } elsif ( $target eq 'tex' ) {
1.284 albertel 1327: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1328: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1329: } else {
1.211 albertel 1330: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1331: }
1.159 albertel 1332: }
1333: } else {
1334: if ($target eq 'tex') {
1.284 albertel 1335: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1336: if ($$tagstack[-2] eq 'td') {
1337: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1338: } else {
1339: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1340: }
1.195 sakharuk 1341: }
1.159 albertel 1342: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1343: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1344: my @allkeys = split /,/,$allkeys;
1345: my $allow_print_points = 0;
1346: foreach my $partial_key (@allkeys) {
1.230 albertel 1347: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1348: if ($1 ne '0') {$allow_print_points=1;}
1349: }
1350: }
1.275 albertel 1351: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1352: if (defined($maxtries) && $maxtries < 0) {
1353: $allow_print_points=0;
1354: }
1.302 albertel 1355: if (lc($env{'course.'.$env{'request.course.id'}.
1356: '.disableexampointprint'}) eq 'yes') {
1357: $allow_print_points=0;
1358: }
1.222 sakharuk 1359: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1360: } elsif ($target eq 'web') {
1361: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1362: }
1363: }
1364: }
1365: } elsif ($target eq 'edit') {
1366: $result.=&Apache::edit::tag_start($target,$token);
1367: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1368: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1369: ' '.
1370: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1371: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1372: } elsif ($target eq 'modified') {
1373: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1374: $safeeval,'id','display');
1.159 albertel 1375: if ($constructtag) {
1.225 albertel 1376: #limiting ids to only letters numbers, and space
1.224 www 1377: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1378: $result = &Apache::edit::rebuild_tag($token);
1379: $result.=&Apache::edit::handle_insert();
1380: }
1381: }
1382: return $result;
1.11 albertel 1383: }
1384:
1385: sub end_part {
1.159 albertel 1386: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1387: &Apache::lonxml::debug("in end_part $target ");
1388: my $status=$Apache::inputtags::status['-1'];
1389: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1390: my $in_order_show=&ordered_show_check();
1.321 albertel 1391: my $result;
1392: if (!$Apache::lonxml::metamode) {
1393: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1394: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1395: }
1.312 albertel 1396: if ($target eq 'grade') {
1.249 albertel 1397: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1398: !$hidden && $in_order_show) {
1.311 foxr 1399: $result.=&Apache::inputtags::grade;
1.249 albertel 1400: } else {
1401: # move any submission data to .hidden
1402: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1403: }
1.283 albertel 1404: } elsif (($target eq 'web' || $target eq 'tex') &&
1405: !$hidden && $in_order_show) {
1.159 albertel 1406: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1407: $target);
1.212 albertel 1408: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1409: $gradestatus='';
1410: }
1.311 foxr 1411: $result.=$gradestatus;
1.265 sakharuk 1412: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1413: } elsif ($target eq 'edit') {
1.311 foxr 1414: $result.=&Apache::edit::end_table();
1.322 albertel 1415: } elsif ($target eq 'modified') {
1416: $result .= $token->[2];
1417: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 1418: }
1419: pop @Apache::inputtags::status;
1420: $Apache::inputtags::part='';
1.295 albertel 1421: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1422: return $result;
1.11 albertel 1423: }
1.1 albertel 1424:
1.25 albertel 1425: sub start_preduedate {
1.326 albertel 1426: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1427: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
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)=@_;
1.234 albertel 1445: if ($target eq 'web' || $target eq 'grade') {
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' ||
1463: $target eq 'tex') {
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;
1499: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1500: $target eq 'tex' || $target eq 'analyze') {
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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