Annotation of loncom/homework/structuretags.pm, revision 1.341
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.341 ! albertel 4: # $Id: structuretags.pm,v 1.340 2006/03/30 20:16:14 albertel Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.133 sakharuk 30:
1.1 albertel 31: package Apache::structuretags;
32:
33: use strict;
34: use Apache::lonnet;
1.101 sakharuk 35: use Apache::File();
1.147 www 36: use Apache::lonmenu;
1.210 albertel 37: use Apache::lonlocal;
1.231 sakharuk 38: use Apache::lonxml;
1.338 albertel 39: use Apache::lonenc();
1.267 albertel 40: use Time::HiRes qw( gettimeofday tv_interval );
1.78 harris41 41: BEGIN {
1.248 albertel 42: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));
1.10 albertel 43: }
44:
45: sub start_web {
1.326 albertel 46: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
47: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
1.339 albertel 48: if ($target eq 'web' || $target eq 'webgrade') {
1.200 albertel 49: return $bodytext;
1.159 albertel 50: }
51: return '';
1.10 albertel 52: }
53:
54: sub end_web {
1.44 ng 55: return '';
1.10 albertel 56: }
57:
58: sub start_tex {
1.326 albertel 59: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 60: my $result='';
1.326 albertel 61: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
1.200 albertel 62: if ($target eq 'tex') {
63: return $bodytext.' ';
1.159 albertel 64: }
1.198 sakharuk 65: return $result;;
1.10 albertel 66: }
67:
68: sub end_tex {
1.44 ng 69: return '';
1.9 albertel 70: }
71:
1.290 albertel 72: sub body_tag_start {
73: my ($target,$background,$bgcolor)=@_;
74: my $body_tag_start='<body onload="'.&Apache::lonmenu::loadevents().'" '.
75: 'onunload="'.&Apache::lonmenu::unloadevents().'" ';
76: if ($env{'browser.imagesuppress'} eq 'on') { $background=''; }
77: if ($background) {
1.306 albertel 78: &Apache::lonxml::extlink($background);
1.290 albertel 79: $body_tag_start.='background="'.$background.'" ';
80: } else {
81: if (($bgcolor) && ($env{'browser.blackwhite'} ne 'on')) {
82: $body_tag_start.='bgcolor="'.$bgcolor.'" ';
83: } else {
84: $body_tag_start.='bgcolor="#ffffff"';
85: }
86: }
87: if ($env{'browser.fontenhance'} eq 'on') {
88: $body_tag_start.=' style="font-size: x-large;" ';
89: }
90: $body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1);
1.297 albertel 91:
1.341 ! albertel 92: $body_tag_start.=&Apache::lontexconvert::init_math_support();
! 93:
1.290 albertel 94: return $body_tag_start;
95: }
1.291 albertel 96:
1.48 albertel 97: sub page_start {
1.159 albertel 98: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
99: my %found;
1.207 albertel 100: foreach my $taginside (@$tagstack) {
1.159 albertel 101: foreach my $taglookedfor ('html','body','form') {
102: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
103: }
104: }
105:
106: my $result;
107: my $head_tag_start;
108: if (!defined($found{'html'})) {
109: $result=&Apache::londefdef::start_html($target,$token,$tagstack,
110: $parstack,$parser,$safeeval);
1.254 www 111: $head_tag_start='<head>'.&Apache::lonmenu::registerurl(undef,$target).
1.261 www 112: &Apache::lonhtmlcommon::htmlareaheaders().
1.270 albertel 113: &Apache::lonhtmlcommon::spellheader().
114: &Apache::lonxml::fontsettings();
1.336 albertel 115: my $css_href = &Apache::lonnet::EXT('resource.0.cssfile');
1.335 albertel 116: if ($css_href =~ /\S/) {
117: &Apache::lonxml::extlink($css_href);
118: $head_tag_start =
119: '<link rel="stylesheet" type="text/css" href="'.$css_href.'" />';
120: }
1.327 albertel 121: if ($target eq 'edit') {
122: $head_tag_start.=&Apache::edit::js_change_detection();
123: }
1.159 albertel 124: }
125: my $body_tag_start;
1.318 albertel 126: if (!defined($found{'body'}) && $env{'request.state'} eq 'construct') {
127: if ($env{'environment.remote'} eq 'off') {
128: if ($target eq 'web' || $target eq 'edit') {
129: $body_tag_start=&Apache::loncommon::bodytag();
130: $body_tag_start.=&Apache::lonxml::message_location();
131: }
132: } else {
133: if ($target eq 'web' || $target eq 'edit') {
134: $body_tag_start=&Apache::loncommon::bodytag(undef,undef,undef,1);
135: $body_tag_start.=&Apache::lonxml::message_location();
136: }
1.297 albertel 137: }
1.272 albertel 138: } elsif (!defined($found{'body'})) {
1.159 albertel 139: my $background=&Apache::lonxml::get_param('background',$parstack,
140: $safeeval);
1.290 albertel 141: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
142: $safeeval);
1.299 albertel 143: $body_tag_start=&body_tag_start($target,$background,$bgcolor);
1.291 albertel 144: if ( ($target eq 'web' || $target eq 'webgrade')
145: && $env{'request.state'} ne 'construct') {
1.165 albertel 146: my ($symb,undef,undef,undef,$publicuser)=
147: &Apache::lonxml::whichuser();
148: if ($symb eq '' && !$publicuser) {
1.159 albertel 149: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
1.211 albertel 150: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
1.159 albertel 151: $body_tag_start.=$help;
152: }
153: }
1.245 albertel 154: $body_tag_start.=&Apache::lonxml::message_location();
1.159 albertel 155: }
156: my $form_tag_start;
157: if (!defined($found{'form'})) {
1.337 albertel 158: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.338 albertel 159: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.327 albertel 160: $form_tag_start.=$uri.'" ';
161: if ($target eq 'edit') {
162: $form_tag_start.=&Apache::edit::form_change_detection();
163: }
164: $form_tag_start.='>';
1.159 albertel 165: }
166: return ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.105 albertel 167: }
168:
1.141 matthew 169: #use Time::HiRes();
1.105 albertel 170: sub get_resource_name {
1.159 albertel 171: my ($parstack,$safeeval)=@_;
1.204 albertel 172: if (defined($Apache::lonhomework::name)) {
173: return $Apache::lonhomework::name;
174: }
1.279 albertel 175: my ($symb)=&Apache::lonxml::whichuser();
176: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 177: if ($name eq '') {
178: $name=&Apache::lonnet::EXT('resource.title');
179: if ($name eq 'con_lost') { $name = ''; }
180: }
1.204 albertel 181: if ($name!~/\S+/) {
1.284 albertel 182: $name=$env{'request.uri'};
1.205 albertel 183: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 184: }
1.159 albertel 185: $Apache::lonhomework::name=$name;
186: return $name;
1.105 albertel 187: }
188:
189: sub setup_rndseed {
1.159 albertel 190: my ($safeeval)=@_;
191: my $rndseed;
1.162 albertel 192: my ($symb)=&Apache::lonxml::whichuser();
1.333 albertel 193: if ($env{'request.state'} eq "construct"
194: || $symb eq ''
195: || $Apache::lonhomework::type eq 'practice'
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,$name) = &Apache::lonxml::whichuser();
1.333 albertel 339: if ($env{'request.state'} eq 'construct'
340: || $symb eq ''
341: || $Apache::lonhomework::type eq 'practice') {
342:
343: my $namespace = $symb || $env{'request.uri'};
344: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
345: $env{'form.resetdata'} eq &mt('New Problem Variation') ||
346: $env{'form.newrandomization'} eq &mt('New Randomization')) {
347: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
348: &Apache::lonxml::debug("Attempt reset");
349: }
1.159 albertel 350: %Apache::lonhomework::history=
1.333 albertel 351: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 352: my ($temp)=keys %Apache::lonhomework::history ;
353: &Apache::lonxml::debug("Return message of $temp");
354: } else {
355: %Apache::lonhomework::history=
356: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
357: }
358: #ignore error conditions
1.67 albertel 359: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 360: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 361: }
362:
363: # -------------------------------------------------------------finalize_storage
364: # Stores away the result has to a student's environment
365: # checks form.grade_ for specific values, other wises stores
366: # to the running users environment
1.285 raeburn 367: # Will increment totals for attempts, students, and corrects
368: # if running user has student role.
1.65 albertel 369: sub finalize_storage {
1.159 albertel 370: my $result;
1.289 albertel 371: if (%Apache::lonhomework::results) {
1.323 albertel 372: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
373: delete(@Apache::lonhomework::results{@remove});
1.159 albertel 374: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.333 albertel 375: if ($env{'request.state'} eq 'construct'
376: || $symb eq ''
377: || $Apache::lonhomework::type eq 'practice') {
378: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 379: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 380: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 381: $namespace,'',$domain,$name);
1.159 albertel 382: &Apache::lonxml::debug('Construct Store return message:'.$result);
383: } else {
384: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
385: $symb,$courseid,$domain,$name);
386: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 387: if ($env{'request.role'} =~/^st/) {
388: &store_aggregates($symb,$courseid);
389: }
1.159 albertel 390: }
1.323 albertel 391: } else {
392: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 393: }
1.159 albertel 394: return $result;
1.65 albertel 395: }
1.289 albertel 396: use Data::Dumper;
1.65 albertel 397:
1.285 raeburn 398: # -------------------------------------------------------------store_aggregates
399: # Sends hash of values to be incremented in nohist_resourcetracker.db
400: # for the course. Increments total number of attempts, unique students
401: # and corrects for each part for an instance of a problem, as appropriate.
402: sub store_aggregates {
403: my ($symb,$courseid) = @_;
1.286 albertel 404: my %aggregate;
405: my @parts;
1.288 albertel 406: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
407: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 408: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 409: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 410: push(@parts, $1);
1.285 raeburn 411: }
412: }
1.286 albertel 413: foreach my $part (@parts) {
414: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
415: eq 'APPROX_ANS' ||
416: $Apache::lonhomework::results{'resource.'.$part.'.award'}
417: eq 'EXACT_ANS') {
1.287 albertel 418: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 419: }
1.286 albertel 420: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 421: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 422: } else {
1.293 albertel 423: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 424: if ($last_reset) {
1.293 albertel 425: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 426: $aggregate{$symb."\0".$part."\0users"} = 1;
427: }
428: }
1.285 raeburn 429: }
1.287 albertel 430: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 431: }
1.292 raeburn 432: if (keys (%aggregate) > 0) {
1.289 albertel 433: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 434: $cdomain,$cname);
435: }
436: }
1.289 albertel 437:
1.65 albertel 438: sub checkout_msg {
1.211 albertel 439: my %lt=&Apache::lonlocal::texthash(
440: 'resource'=>'The resource needs to be checked out',
441: '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.',
442: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
443: 'checkout'=>'Check out Exam for Viewing',
444: 'checkout?'=>'Check out Exam?');
1.159 albertel 445: return (<<ENDCHECKOUT);
1.211 albertel 446: <h2>$lt{'resource'}</h2>
447: <p>$lt{'id_expln'}</p>
448: <font color="red">
449: <p>$lt{'warning'}</p>
1.91 albertel 450: </font>
1.284 albertel 451: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.91 albertel 452: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 453: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 454: </form>
455: ENDCHECKOUT
456: }
457:
1.252 albertel 458: sub firstaccess_msg {
1.253 albertel 459: my ($time,$symb)=@_;
460: my ($map)=&Apache::lonnet::decode_symb($symb);
461: my $foldertitle=&Apache::lonnet::gettitle($map);
462: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.252 albertel 463: return (<<ENDCHECKOUT);
1.253 albertel 464: <h2>The resources in "$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 465: <form name="markaccess" method="POST" action="$env{'request.uri'}">
1.252 albertel 466: <input type="hidden" name="markaccess" value="yes" />
467: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
468: </form>
469: ENDCHECKOUT
470: }
471:
1.204 albertel 472: sub init_problem_globals {
473: my ($type)=@_;
474: #initialize globals
1.308 foxr 475: # For problems, we start out in part 0 (outside a <part> tag).
476: # and part 0 is used to describe the main body of the <problem>
477: #
1.204 albertel 478: if ($type eq 'problem') {
479: $Apache::inputtags::part='0';
480: @Apache::inputtags::partlist=('0');
1.266 albertel 481: $Apache::lonhomework::problemstatus=&get_problem_status('0');
482: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 483:
1.266 albertel 484: } elsif ($type eq 'library') {
1.204 albertel 485: $Apache::inputtags::part='';
486: @Apache::inputtags::partlist=();
487: $Apache::lonhomework::problemstatus='';
1.266 albertel 488: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 489:
1.304 albertel 490: } elsif ($type eq 'Task') {
491: $Apache::inputtags::part='0';
492: @Apache::inputtags::partlist=('0');
493: $Apache::lonhomework::problemstatus='';
494: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 495: }
496: @Apache::inputtags::responselist = ();
497: @Apache::inputtags::importlist = ();
498: @Apache::inputtags::previous=();
499: @Apache::inputtags::previous_version=();
500: $Apache::structuretags::printanswer='No';
501: @Apache::structuretags::whileconds=();
502: @Apache::structuretags::whilebody=();
503: @Apache::structuretags::whileline=();
504: $Apache::lonhomework::scantronmode=0;
505: undef($Apache::lonhomework::name);
506:
507: }
508:
509: sub reset_problem_globals {
510: my ($type)=@_;
511: undef(%Apache::lonhomework::history);
512: undef(%Apache::lonhomework::results);
513: undef($Apache::inputtags::part);
1.208 albertel 514: #don't undef this, lonhomework.pm takes care of this, we use this to
515: #detect if we try to do 2 problems in one file
516: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 517: undef($Apache::lonhomework::name);
518: }
519:
1.241 albertel 520: sub set_problem_state {
1.240 albertel 521: my ($part)=@_;
1.284 albertel 522: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 523: $Apache::lonhomework::history{"resource.$part.solved"}=
524: 'correct_by_student';
525: }
526: }
527:
1.241 albertel 528: sub get_problem_status {
529: my ($part)=@_;
1.267 albertel 530: my $problem_status;
1.284 albertel 531: if ($env{'request.state'} eq 'construct' &&
532: defined($env{'form.problemstatus'})) {
533: $problem_status=$env{'form.problemstatus'};
1.267 albertel 534: } else {
535: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
536: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 537: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 538: }
539: return $problem_status;
540: }
541:
1.9 albertel 542: sub start_problem {
1.326 albertel 543: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 544:
1.311 foxr 545: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 546: if (!$Apache::lonxml::metamode) {
547: &Apache::lonxml::startredirection();
548: }
1.311 foxr 549:
1.308 foxr 550: # Problems don't nest and we don't allow more than one <problem> in
551: # a .problem file.
552: #
1.184 albertel 553: if ( $Apache::inputtags::part ne '' ||
554: $Apache::lonhomework::parsing_a_problem) {
555: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 556: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 557: return '';
558: }
1.184 albertel 559:
560: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 561: &init_problem_globals('problem');
1.166 albertel 562:
1.284 albertel 563: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 564: $Apache::lonhomework::scantronmode=1;
565: }
1.161 albertel 566:
1.246 albertel 567: &initialize_storage();
1.159 albertel 568: if ($target ne 'analyze') {
569: if ($target eq 'web') {
570: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 571: }
1.284 albertel 572: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 573: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 574: if (($env{'request.state'} eq 'construct') &&
575: defined($env{'form.problemtype'})) {
576: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 577: }
1.332 albertel 578: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 579: }
1.164 albertel 580: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 581: my $uri=$env{'request.uri'};
1.159 albertel 582: if ($uri=~/\.(\w+)$/) {
583: $Apache::lonhomework::type=$1;
584: &Apache::lonxml::debug("Using type of $1");
585: } else {
586: $Apache::lonhomework::type='problem';
587: &Apache::lonxml::debug("Using default type, problem, :$uri:");
588: }
1.87 albertel 589: }
1.301 albertel 590: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 591:
1.159 albertel 592: #added vars to the scripting enviroment
1.213 albertel 593: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 594: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 595: &Apache::run::run($expression,$safeeval);
1.159 albertel 596: my $status;
597: my $accessmsg;
598:
599: #should get back a <html> or the neccesary stuff to start XML/MathML
600: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
601: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.284 albertel 602: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 603:
604: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
605: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
606: $target eq 'tex') {
607: #handle exam checkout
608: if ($Apache::lonhomework::type eq 'exam') {
609: my $token=
610: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 611: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 612: $token=&Apache::lonxml::maketoken();
613: $Apache::lonhomework::history{"resource.0.outtoken"}=
614: $token;
615: }
616: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 617: }
1.284 albertel 618: if ($env{'form.markaccess'}) {
1.252 albertel 619: &Apache::lonnet::set_first_access('map');
620: }
1.159 albertel 621: #handle rand seed in construction space
622: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 623: my ($symb)=&Apache::lonxml::whichuser();
1.333 albertel 624: if ($env{'request.state'} ne "construct" &&
625: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 626: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
627: $rndseed.'" />'.
628: '<input type="submit" name="resetdata"
1.334 albertel 629: value="'.&mt('New Problem Variation').'" />';
630: if (exists($env{'form.username'})) {
631: $form_tag_start.=
1.164 albertel 632: '<input type="hidden" name="username"
1.284 albertel 633: value="'.$env{'form.username'}.'" />';
1.334 albertel 634: }
1.333 albertel 635: if ($env{'request.role.adv'}) {
1.267 albertel 636: $form_tag_start.=
1.300 albertel 637: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 638: if (defined($env{'form.showallfoils'})) {
1.267 albertel 639: $form_tag_start.='checked="on"';
640: }
1.300 albertel 641: $form_tag_start.= ' />'.&mt(' Show All Foils').
642: '</label>';
1.267 albertel 643: }
644: $form_tag_start.='<hr />';
1.162 albertel 645: }
1.324 albertel 646:
647: ($status,$accessmsg,my $slot_name,my $slot) =
648: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 649: push (@Apache::inputtags::status,$status);
1.324 albertel 650:
1.159 albertel 651: my $expression='$external::datestatus="'.$status.'";';
652: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
653: &Apache::run::run($expression,$safeeval);
654: &Apache::lonxml::debug("Got $status");
1.324 albertel 655:
1.159 albertel 656: if (( $status eq 'CLOSED' ) ||
657: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 658: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 659: ( $status eq 'BANNED') ||
1.216 albertel 660: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 661: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 662: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 663: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
664: $style);
1.159 albertel 665: if ( $target eq "web" ) {
666: $result.= $head_tag_start.'</head>';
667: my $msg=$body_tag_start;
668: if ($status eq 'UNAVAILABLE') {
1.245 albertel 669: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 670: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 671: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 672: }
1.216 albertel 673: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 674: $msg.='The problem '.$accessmsg;
675: } elsif ($status eq 'UNCHECKEDOUT') {
676: $msg.=&checkout_msg;
1.252 albertel 677: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 678: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 679: } elsif ($status eq 'NOT_IN_A_SLOT') {
680: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 681: }
682: $result.=$msg.'<br />';
683: } elsif ($target eq 'tex') {
1.332 albertel 684: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
685: : '\begin{minipage}{\textwidth}';
686: $result.='\begin{document}\noindent \vskip 1 mm '.
687: $startminipage.'\vskip 0 mm';
1.159 albertel 688: if ($status eq 'UNAVAILABLE') {
1.211 albertel 689: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 690: } else {
1.211 albertel 691: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 692: }
693: }
1.324 albertel 694: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 695: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
696: $style);
1.324 albertel 697: if ($target eq 'web') {
698: $result .= $head_tag_start.'</head>';
699: $result .= $body_tag_start;
700: $result .= &Apache::bridgetask::proctor_validation_screen();
701: } elsif ($target eq 'grade') {
702: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
703: 'problem');
704: }
1.159 albertel 705: } elsif ($target eq 'web') {
706: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 707: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 708: $body_tag_start \n $form_tag_start".
1.227 albertel 709: '<input type="hidden" name="submitted" value="yes" />';
710: # create a page header and exit
1.284 albertel 711: if ($env{'request.state'} eq "construct") {
712: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 713: }
714: # if we are viewing someone else preserve that info
1.284 albertel 715: if (defined $env{'form.grade_symb'}) {
1.227 albertel 716: foreach my $field ('symb','courseid','domain','username') {
717: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 718: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 719: }
720: }
721: } elsif ($target eq 'tex') {
1.319 foxr 722: $result .= 'INSERTTEXFRONTMATTERHERE';
723:
1.99 sakharuk 724: }
1.159 albertel 725: } elsif ($target eq 'edit') {
726: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
727: &problem_edit_header();
1.226 albertel 728: $Apache::lonxml::warnings_error_header=
729: &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 730: my $temp=&Apache::edit::insertlist($target,$token);
731: $result.=$temp;
732: } elsif ($target eq 'modified') {
733: $result=$token->[4];
734: $result.=&Apache::edit::handle_insert();
735: } else {
736: # page_start returned a starting result, delete it if we don't need it
737: $result = '';
1.99 sakharuk 738: }
1.159 albertel 739: return $result;
1.9 albertel 740: }
741:
742: sub end_problem {
1.159 albertel 743: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 744: my $result;
1.310 foxr 745:
1.321 albertel 746: if (!$Apache::lonxml::metamode) {
747: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 748: $Apache::lonxml::post_evaluate=0;
1.321 albertel 749: }
1.319 foxr 750:
751: if ($target eq 'tex') {
1.321 albertel 752:
753: # Figure out the front matter and replace the
754: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
755: # this in end_problem because whether or not we display due
756: # dates depends on whether due dates have already been
757: # displayed in the problem parts.
758:
1.319 foxr 759: my $frontmatter = '';
760: my $startminipage = '';
761: if (not $env{'form.problem_split'}=~/yes/) {
762: $startminipage = '\begin{minipage}{\textwidth}';
763: }
764: my $id = $Apache::inputtags::part;
765: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
766: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
767: my @packages = split /,/,$packages;
768: my $allow_print_points = 0;
769: foreach my $partial_key (@packages) {
770: if ($partial_key=~m/^part_0$/) {
771: $allow_print_points=1;
772: }
773: }
774: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
775: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
776: if (lc($env{'course.'.$env{'request.course.id'}.
777: '.disableexampointprint'}) eq 'yes') {
778: $allow_print_points=0;
779: }
780: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
781: 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 ';
782: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
783: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
784:
785: # Figure out what the due date is and if we need to print
786: # it in the problem header. We have been logging the
787: # last due date written to file.
788:
789: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
790: my $duedate = POSIX::strftime("%c",localtime($duetime));
791: my $temp_file;
792: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
793:
794: # Figure out what the last printed due date is or set it
795: # to the epoch if no duedates have been printed.
796:
797: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
798: if (-e $filename) {
799: $temp_file = Apache::File->new($filename);
800: my @due_file = <$temp_file>;
801: $due_file_content = $due_file[$#due_file];
802: chomp $due_file_content;
803: }
804:
805: # We display the due date iff it is not the same as the last
806: # duedate in problem header ($due_file_content), and
807: # none of our parts displayed a duedate.
808: #
809: my $parts_with_displayduedate;
810: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
811: $parts_with_displayduedate =
812: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
813: } else {
814: $parts_with_displayduedate = 0;
815: }
816: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
817: $temp_file = Apache::File->new('>'.$filename);
818: print $temp_file "$duetime\n";
819: if (not $env{'request.symb'} =~ m/\.page_/) {
820: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
821: $frontmatter .= $begin_doc.
822: '\textit{Due date: '.$duedate.'} '.$toc_line;
823: } else {
824: $frontmatter.= $begin_doc.$toc_line;
825: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
826: }
827: } else {
828: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
829: }
830: } else {
831: if (not $env{'request.symb'} =~ m/\.page_/) {
832: $frontmatter .= $begin_doc.$toc_line;
833: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
834: } else {
835: $frontmatter .= '\vskip 1mm \\\\\\\\';
836: }
837: }
838: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
839: }
840:
1.159 albertel 841: my $status=$Apache::inputtags::status['-1'];
842: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
843: $target eq 'tex') {
1.249 albertel 844: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 845: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 846: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
847: &Apache::inputtags::grade;
1.324 albertel 848: } elsif ($status eq 'NEEDS_CHECKIN') {
849: # no need to grade, and don't want to hide data
1.249 albertel 850: } else {
851: # move any submission data to .hidden
852: &Apache::inputtags::hidealldata($Apache::inputtags::part);
853: }
1.159 albertel 854: } elsif ( ($target eq 'web' || $target eq 'tex') &&
855: $Apache::inputtags::part eq '0' &&
1.252 albertel 856: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 857: # if part is zero, no <part>s existed, so we need show the current
858: # grading status
859: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
860: $result.= $gradestatus;
861: }
862: if (
1.284 albertel 863: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 864: ($target eq 'answer') || ($target eq 'tex')
865: ) {
1.227 albertel 866: if ($target ne 'tex' &&
1.284 albertel 867: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 868: $result.="</form>";
869: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
1.159 albertel 870: }
871: if ($target eq 'web') {
1.281 albertel 872: $result.=&Apache::lonxml::xmlend().'</html>';
1.159 albertel 873: } elsif ($target eq 'tex') {
1.178 sakharuk 874: my $endminipage = '';
1.284 albertel 875: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 876: $endminipage = '\end{minipage}';
877: }
1.284 albertel 878: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 879: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 880: $result=~s/<\/html>//;
1.159 albertel 881: } else {
1.262 sakharuk 882: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 883: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 884: $result .= $endminipage.'\end{document} ';
885: } else {
886: $result .= '';
887: }
1.159 albertel 888: }
889: }
890: }
891: if ($target eq 'grade') {
892: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
893: &finalize_storage();
894: }
1.284 albertel 895: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
896: && $env{'form.answer_output_mode'} ne 'tex') {
1.294 albertel 897: $result.=&Apache::lonxml::xmlend().'</html>';
898: # normally we get it from above, but in CSTR
1.172 albertel 899: # we always show answer mode too.
1.159 albertel 900: }
901: } elsif ($target eq 'meta') {
902: if ($Apache::inputtags::part eq '0') {
1.179 albertel 903: @Apache::inputtags::response=();
1.159 albertel 904: $result=&Apache::response::mandatory_part_meta;
905: }
1.215 albertel 906: $result.=&Apache::response::meta_part_order();
1.258 albertel 907: $result.=&Apache::response::meta_response_order();
1.159 albertel 908: } elsif ($target eq 'edit') {
909: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 910: $result .= &problem_edit_footer();
1.320 albertel 911: } elsif ($target eq 'modified') {
912: $result .= $token->[2];
913: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 914: }
1.155 albertel 915:
1.284 albertel 916: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 917: &Apache::inputtags::check_for_duplicate_ids();
918: }
1.204 albertel 919:
920: &reset_problem_globals('problem');
1.159 albertel 921:
922: return $result;
1.48 albertel 923: }
924:
1.108 albertel 925:
1.48 albertel 926: sub start_library {
1.159 albertel 927: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
928: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 929: if ($$tagstack[0] eq 'library') {
930: &init_problem_globals('library');
931: $Apache::lonhomework::type='problem';
932: }
1.159 albertel 933: if ($target eq 'edit') {
934: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
935: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
936: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
937: &problem_edit_header();
938: my $temp=&Apache::edit::insertlist($target,$token);
939: $result.=$temp;
940: } elsif ($target eq 'modified') {
941: $result=$token->[4];
942: $result.=&Apache::edit::handle_insert();
1.340 albertel 943: } elsif (($target eq 'web' || $target eq 'webgrade')
944: && $$tagstack[0] eq 'library'
945: && $env{'request.state'} eq "construct" ) {
1.159 albertel 946: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
947: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
948: my $name=&get_resource_name($parstack,$safeeval);
949: my $rndseed=&setup_rndseed($safeeval);
950: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 951: $body_tag_start \n $form_tag_start".
1.159 albertel 952: '<input type="hidden" name="submitted" value="yes" />';
953: $result.=&problem_web_to_edit_header($rndseed);
954: }
955: return $result;
1.48 albertel 956: }
957:
958: sub end_library {
1.159 albertel 959: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
960: my $result='';
961: if ($target eq 'edit') {
962: $result=&problem_edit_footer();
963: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 964: $env{'request.state'} eq "construct") {
1.280 albertel 965: $result.='</form>'.&Apache::loncommon::endbodytag().
966: &Apache::lonxml::xmlend();
1.159 albertel 967: }
1.204 albertel 968: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 969: return $result;
1.197 www 970: }
971:
972: sub start_definetag {
1.326 albertel 973: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 974:
975: my $result;
976:
977: my $name = $token->[2]->{'name'};
1.326 albertel 978: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 979: if ($name=~/^\//) {
980: $result=
981: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
982: } else {
983: $result=
984: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
985: }
986: $skip=~s/\</\<\;/gs;
987: $skip=~s/\>/\>\;/gs;
988: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
989: return $result;
990: }
991:
992: sub end_definetag {
993: return '';
1.1 albertel 994: }
995:
996: sub start_block {
1.201 albertel 997: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 998:
999: my $result;
1.1 albertel 1000:
1.339 albertel 1001: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1002: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1003: my $code = $token->[2]->{'condition'};
1.201 albertel 1004: if (defined($code)) {
1.137 albertel 1005: if (!$Apache::lonxml::default_homework_loaded) {
1006: &Apache::lonxml::default_homework_load($safeeval);
1007: }
1.131 albertel 1008: $result = &Apache::run::run($code,$safeeval);
1009: &Apache::lonxml::debug("block :$code: returned :$result:");
1010: } else {
1011: $result='1';
1012: }
1013: if ( ! $result ) {
1.201 albertel 1014: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1015: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1016: }
1017: $result='';
1018: } elsif ($target eq 'edit') {
1019: $result .=&Apache::edit::tag_start($target,$token);
1020: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1021: $token,40);
1022: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1023: } elsif ($target eq 'modified') {
1024: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1025: $safeeval,'condition');
1026: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1027: }
1.131 albertel 1028: return $result;
1.1 albertel 1029: }
1030:
1031: sub end_block {
1.167 www 1032: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1033: my $result;
1034: if ($target eq "edit") {
1035: $result.= &Apache::edit::tag_end($target,$token,'');
1036: }
1037: return $result;
1038: }
1039:
1040: sub start_languageblock {
1.201 albertel 1041: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1042:
1043: my $result;
1044:
1.339 albertel 1045: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1046: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1047: my $include = $token->[2]->{'include'};
1048: my $exclude = $token->[2]->{'exclude'};
1049: my %languages=&Apache::loncommon::display_languages();
1050: $result='1';
1051: if ($include) {
1052: $result='';
1053: foreach (split(/\,/,$include)) {
1054: if ($languages{$_}) { $result='1'; }
1055: }
1056: }
1057: if ($exclude) {
1058: foreach (split(/\,/,$exclude)) {
1059: if ($languages{$_}) { $result='0'; }
1060: }
1061: }
1062: if ( ! $result ) {
1063: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1064: $style);
1065: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1066: }
1067: $result='';
1.167 www 1068: } elsif ($target eq 'edit') {
1069: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1070: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1071: $token,40);
1.211 albertel 1072: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1073: $token,40);
1074: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1075: } elsif ($target eq 'modified') {
1076: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1077: $safeeval,'include',
1078: 'exclude');
1.167 www 1079: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1080: }
1081: return $result;
1082: }
1083:
1084: sub end_languageblock {
1.170 www 1085: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1086: my $result;
1.201 albertel 1087: if ($target eq "edit") {
1.170 www 1088: $result.= &Apache::edit::tag_end($target,$token,'');
1089: }
1090: return $result;
1091: }
1092:
1093: sub start_instructorcomment {
1.201 albertel 1094: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1095:
1096: my $result;
1097:
1.339 albertel 1098: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1099: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1100: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1101: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1102: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1103: $parser,$style);
1.170 www 1104: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1105: }
1106: $result='';
1107: } elsif ($target eq 'edit') {
1108: $result .=&Apache::edit::tag_start($target,$token);
1109: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1110: }
1111: return $result;
1112: }
1113:
1114: sub end_instructorcomment {
1.159 albertel 1115: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1116: my $result;
1117: if ($target eq "edit") {
1118: $result.= &Apache::edit::tag_end($target,$token,'');
1119: }
1120: return $result;
1.4 tsai 1121: }
1122:
1123: sub start_while {
1.326 albertel 1124: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1125:
1.160 albertel 1126: my $result;
1.339 albertel 1127: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1128: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1129: my $code = $token->[2]->{'condition'};
1.4 tsai 1130:
1.160 albertel 1131: push( @Apache::structuretags::whileconds, $code);
1132: if (!$Apache::lonxml::default_homework_loaded) {
1133: &Apache::lonxml::default_homework_load($safeeval);
1134: }
1135: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1136: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1137: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1138: push( @Apache::structuretags::whileline, $token->[5]);
1139: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1140: if ( $result ) {
1141: &Apache::lonxml::newparser($parser,\$bodytext);
1142: }
1143: } elsif ($target eq 'edit') {
1144: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1145: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1146: $token,40);
1147: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1148: } elsif ($target eq 'modified') {
1149: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1150: $safeeval,'condition');
1151: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1152: }
1.160 albertel 1153: return $result;
1.4 tsai 1154: }
1155:
1156: sub end_while {
1.159 albertel 1157: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1158: my $result;
1159:
1.339 albertel 1160: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1161: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1162: my $code = pop(@Apache::structuretags::whileconds);
1163: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1164: my $line = pop(@Apache::structuretags::whileline);
1165: my $return = &Apache::run::run($code,$safeeval);
1166: my $starttime=time;
1167: my $error=0;
1168: while ($return) {
1169: if (time-$starttime >
1170: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1171: #$return = 0; $error=1; next;
1.161 albertel 1172: }
1173: $result.=&Apache::scripttag::xmlparse($bodytext);
1174: $return = &Apache::run::run($code,$safeeval);
1175: }
1176: if ($error) {
1.270 albertel 1177: &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 1178: }
1179: } elsif ($target eq "edit") {
1180: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1181: }
1.160 albertel 1182: return $result;
1.1 albertel 1183: }
1.6 tsai 1184:
1.160 albertel 1185: # <randomlist show="1">
1.6 tsai 1186: # <tag1>..</tag1>
1187: # <tag2>..</tag2>
1188: # <tag3>..</tag3>
1.160 albertel 1189: # ...
1.6 tsai 1190: # </randomlist>
1191: sub start_randomlist {
1.326 albertel 1192: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1193: my $result;
1.339 albertel 1194: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1195: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1196: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1197: my $b_parser= HTML::LCParser->new(\$body);
1198: $b_parser->xml_mode(1);
1199: $b_parser->marked_sections(1);
1.159 albertel 1200: my $b_tok;
1201: my @randomlist;
1202: my $list_item;
1203: while($b_tok = $b_parser->get_token() ) {
1204: if($b_tok->[0] eq 'S') { # start tag
1205: # get content of the tag until matching end tag
1206: # get all text upto the matching tag
1207: # and push the content into @randomlist
1208: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1209: $b_parser);
1210: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1211: push(@randomlist,$list_item);
1212: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1213: # $list_item</b>";
1214: }
1215: if($b_tok->[0] eq 'T') { # text
1216: # what to do with text in between tags?
1217: # print "<b>TEXT $b_tok->[1]</b><br />";
1218: }
1219: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1220: # print "<b>END-TAG $b_tok->[1]</b><br />";
1221: # }
1222: }
1.303 albertel 1223: if (@randomlist) {
1224: my @idx_arr = (0 .. $#randomlist);
1225: &Apache::structuretags::shuffle(\@idx_arr);
1226: my $bodytext = '';
1227: my $show=$#randomlist;
1228: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1229: $showarg--;
1230: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1231: for(0 .. $show) {
1232: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1233: }
1234: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1235: }
1236: } elsif ($target eq 'edit' ) {
1237: $result .=&Apache::edit::tag_start($target,$token);
1238: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1239: $token,5);
1240: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1241: } elsif ($target eq 'modified' ) {
1242: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1243: $safeeval,'show');
1244: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1245: }
1246: return $result;
1.7 tsai 1247: }
1248:
1249: sub shuffle {
1250: my $a=shift;
1251: my $i;
1.303 albertel 1252: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1253: &Apache::response::pushrandomnumber();
1.159 albertel 1254: for($i=@$a;--$i;) {
1255: my $j=int(&Math::Random::random_uniform() * ($i+1));
1256: next if $i == $j;
1257: @$a[$i,$j] = @$a[$j,$i];
1258: }
1.251 albertel 1259: &Apache::response::poprandomnumber();
1.7 tsai 1260: }
1.6 tsai 1261: }
1262:
1263: sub end_randomlist {
1.159 albertel 1264: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1265: my $result;
1266: if ($target eq 'edit' ) {
1267: $result=&Apache::edit::tag_end($target,$token,
1268: 'End Randomly Parsed Block');
1269: }
1270: return $result;
1.6 tsai 1271: }
1272:
1.283 albertel 1273: sub ordered_show_check {
1274: my $last_part=$Apache::inputtags::partlist[-2];
1275: my $in_order=
1276: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1277: my $in_order_show=1;
1278: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1279: $in_order_show=&Apache::response::check_status($last_part);
1280: }
1281: return $in_order_show;
1282: }
1283:
1.11 albertel 1284: sub start_part {
1.326 albertel 1285: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1286: if (!$Apache::lonxml::metamode) {
1287: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1288: # duedates.
1289: }
1.159 albertel 1290: my $result='';
1291: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1292: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1293: $Apache::inputtags::part=$id;
1.177 albertel 1294: push(@Apache::inputtags::partlist,$id);
1295: @Apache::inputtags::response=();
1.159 albertel 1296: @Apache::inputtags::previous=();
1297: @Apache::inputtags::previous_version=();
1.241 albertel 1298: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1299: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1300: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1301: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1302: my $in_order_show=&ordered_show_check();
1.214 albertel 1303: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1304: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1305: &Apache::run::run($expression,$safeeval);
1.159 albertel 1306:
1307: if ($target eq 'meta') {
1.224 www 1308: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1309: return &Apache::response::mandatory_part_meta.
1310: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1311: } elsif ($target eq 'web' || $target eq 'grade' ||
1312: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1313: if ($hidden || !$in_order_show) {
1.326 albertel 1314: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1315: } else {
1316: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1317: push (@Apache::inputtags::status,$status);
1318: my $expression='$external::datestatus="'.$status.'";';
1319: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1320: &Apache::run::run($expression,$safeeval);
1.284 albertel 1321: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1322: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1323: }
1.216 albertel 1324: if (( $status eq 'CLOSED' ) ||
1325: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1326: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1327: ( $status eq 'BANNED') ||
1328: ( $status eq 'UNAVAILABLE') ||
1329: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1330: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1331: $style);
1.159 albertel 1332: if ( $target eq "web" ) {
1.211 albertel 1333: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1334: } elsif ( $target eq 'tex' ) {
1.284 albertel 1335: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1336: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1337: } else {
1.211 albertel 1338: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1339: }
1.159 albertel 1340: }
1341: } else {
1342: if ($target eq 'tex') {
1.284 albertel 1343: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1344: if ($$tagstack[-2] eq 'td') {
1345: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1346: } else {
1347: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1348: }
1.195 sakharuk 1349: }
1.159 albertel 1350: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1351: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1352: my @allkeys = split /,/,$allkeys;
1353: my $allow_print_points = 0;
1354: foreach my $partial_key (@allkeys) {
1.230 albertel 1355: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1356: if ($1 ne '0') {$allow_print_points=1;}
1357: }
1358: }
1.275 albertel 1359: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1360: if (defined($maxtries) && $maxtries < 0) {
1361: $allow_print_points=0;
1362: }
1.302 albertel 1363: if (lc($env{'course.'.$env{'request.course.id'}.
1364: '.disableexampointprint'}) eq 'yes') {
1365: $allow_print_points=0;
1366: }
1.222 sakharuk 1367: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1368: } elsif ($target eq 'web') {
1369: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1370: }
1371: }
1372: }
1373: } elsif ($target eq 'edit') {
1374: $result.=&Apache::edit::tag_start($target,$token);
1375: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1376: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1377: ' '.
1378: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1379: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1380: } elsif ($target eq 'modified') {
1381: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1382: $safeeval,'id','display');
1.159 albertel 1383: if ($constructtag) {
1.225 albertel 1384: #limiting ids to only letters numbers, and space
1.224 www 1385: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1386: $result = &Apache::edit::rebuild_tag($token);
1387: $result.=&Apache::edit::handle_insert();
1388: }
1389: }
1390: return $result;
1.11 albertel 1391: }
1392:
1393: sub end_part {
1.159 albertel 1394: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1395: &Apache::lonxml::debug("in end_part $target ");
1396: my $status=$Apache::inputtags::status['-1'];
1397: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1398: my $in_order_show=&ordered_show_check();
1.321 albertel 1399: my $result;
1400: if (!$Apache::lonxml::metamode) {
1401: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1402: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1403: }
1.312 albertel 1404: if ($target eq 'grade') {
1.249 albertel 1405: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1406: !$hidden && $in_order_show) {
1.311 foxr 1407: $result.=&Apache::inputtags::grade;
1.249 albertel 1408: } else {
1409: # move any submission data to .hidden
1410: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1411: }
1.283 albertel 1412: } elsif (($target eq 'web' || $target eq 'tex') &&
1413: !$hidden && $in_order_show) {
1.159 albertel 1414: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1415: $target);
1.212 albertel 1416: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1417: $gradestatus='';
1418: }
1.311 foxr 1419: $result.=$gradestatus;
1.265 sakharuk 1420: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1421: } elsif ($target eq 'edit') {
1.311 foxr 1422: $result.=&Apache::edit::end_table();
1.322 albertel 1423: } elsif ($target eq 'modified') {
1424: $result .= $token->[2];
1425: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 1426: }
1427: pop @Apache::inputtags::status;
1428: $Apache::inputtags::part='';
1.295 albertel 1429: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1430: return $result;
1.11 albertel 1431: }
1.1 albertel 1432:
1.25 albertel 1433: sub start_preduedate {
1.326 albertel 1434: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1435: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1436: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1437: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1438: if (!$Apache::lonhomework::scantronmode &&
1439: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1440: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1441: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1442: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1443: }
1.24 albertel 1444: }
1.159 albertel 1445: return '';
1.24 albertel 1446: }
1447:
1.25 albertel 1448: sub end_preduedate {
1.159 albertel 1449: return '';
1.24 albertel 1450: }
1451:
1.25 albertel 1452: sub start_postanswerdate {
1.326 albertel 1453: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1454: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade') {
1.300 albertel 1455: if ($Apache::lonhomework::scantronmode ||
1456: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.326 albertel 1457: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1458: }
1459: } elsif ($target eq 'tex') {
1.326 albertel 1460: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1461: }
1462: return '';
1.24 albertel 1463: }
1464:
1.25 albertel 1465: sub end_postanswerdate {
1.159 albertel 1466: return '';
1.24 albertel 1467: }
1468:
1.25 albertel 1469: sub start_notsolved {
1.326 albertel 1470: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1471: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1472: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1473: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1474: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1475: if ($gradestatus =~ /^correct/ &&
1476: &Apache::response::show_answer()) {
1.159 albertel 1477: &Apache::lonxml::debug("skipping");
1.326 albertel 1478: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1479: }
1.24 albertel 1480: }
1.159 albertel 1481: return '';
1.24 albertel 1482: }
1483:
1.25 albertel 1484: sub end_notsolved {
1.159 albertel 1485: return '';
1.24 albertel 1486: }
1487:
1488: sub start_solved {
1.326 albertel 1489: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1490: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1491: $target eq 'tex') {
1492: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1493: if ($gradestatus !~ /^correct/ ||
1494: !&Apache::response::show_answer()) {
1.326 albertel 1495: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1496: }
1.24 albertel 1497: }
1.159 albertel 1498: return '';
1.24 albertel 1499: }
1500:
1501: sub end_solved {
1.248 albertel 1502: return '';
1503: }
1504:
1505: sub start_problemtype {
1.326 albertel 1506: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1507: my $result;
1.339 albertel 1508: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1509: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1510: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1511: if (!defined($mode)) { $mode='show'; }
1512: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1513: my $found=0;
1514: foreach my $type (split(',',$for)) {
1515: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1516: }
1517: if ($mode eq 'show' && !$found) {
1.326 albertel 1518: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1519: }
1520: if ($mode eq 'hide' && $found) {
1.326 albertel 1521: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1522: }
1523: } elsif ($target eq 'edit') {
1524: $result .=&Apache::edit::tag_start($target,$token);
1525: $result.=&Apache::edit::select_arg('Mode:','mode',
1526: [['show','Show'],
1527: ['hide','Hide']]
1528: ,$token);
1529: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1530: [ ['exam','Exam/Quiz Problem'],
1531: ['survey','Survey'],
1532: ['problem','Homework Problem'] ]
1533: ,$token);
1534: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1535: } elsif ($target eq 'modified') {
1536: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1537: $safeeval,'mode','for');
1538: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1539: }
1540: return $result;
1541: }
1542:
1543: sub end_problemtype {
1.159 albertel 1544: return '';
1.24 albertel 1545: }
1.34 albertel 1546:
1547: sub start_startouttext {
1.159 albertel 1548: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1549: my @result=(''.'');
1550: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1551: return (@result);
1.34 albertel 1552: }
1.159 albertel 1553:
1.34 albertel 1554: sub end_startouttext {
1.326 albertel 1555: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1556: my $result='';
1557: my $text='';
1558:
1559: if ($target eq 'edit') {
1.326 albertel 1560: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1561: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1562: <td>".&mt('Delete:').
1.159 albertel 1563: &Apache::edit::deletelist($target,$token)
1564: ."</td>
1.42 albertel 1565: <td>".
1.159 albertel 1566: &Apache::edit::insertlist($target,$token).
1567: &Apache::edit::end_row().
1568: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1569: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1570: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1571: }
1572: if ($target eq 'modified') {
1.219 albertel 1573: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1574: }
1575: if ($target eq 'tex') {
1576: $result .= '\noindent ';
1577: }
1578: return $result;
1.34 albertel 1579: }
1.159 albertel 1580:
1.34 albertel 1581: sub start_endouttext {
1.159 albertel 1582: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1583: my $result='';
1584: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1585: if ($target eq "modified") {
1586: $result='<endouttext />'.
1587: &Apache::edit::handle_insertafter('startouttext'); }
1588: return $result;
1.34 albertel 1589: }
1.159 albertel 1590:
1.34 albertel 1591: sub end_endouttext {
1.159 albertel 1592: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1593: my @result=('','');
1594: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1595: return (@result);
1.34 albertel 1596: }
1.159 albertel 1597:
1.45 albertel 1598: sub delete_startouttext {
1.326 albertel 1599: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1600: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1601: my $text=$$parser['-1']->get_text("/endouttext");
1602: my $ntoken=$$parser['-1']->get_token();
1603: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1604: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1605: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1606: # they did the last time round
1607: &Apache::lonxml::increasedepth($ntoken);
1608: &Apache::lonxml::decreasedepth($ntoken);
1609: return 1;
1.193 www 1610: }
1611:
1612: sub start_simpleeditbutton {
1613: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1614: my $result='';
1.284 albertel 1615: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1616: ($target eq 'web') &&
1.330 albertel 1617: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1618: my $url=$env{'request.noversionuri'};
1.193 www 1619: $url=~s/\?.*$//;
1.278 albertel 1620: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1621: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1622: '<a href="'.$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 1623: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1624: }
1625: return $result;
1626: }
1627:
1628: sub end_simpleeditbutton {
1629: return '';
1.45 albertel 1630: }
1.34 albertel 1631:
1.1 albertel 1632: 1;
1633: __END__
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