Annotation of loncom/homework/structuretags.pm, revision 1.305
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.305 ! albertel 4: # $Id: structuretags.pm,v 1.304 2005/10/07 13:56:19 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 {
1.159 albertel 45: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.200 albertel 46: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser);
47: if ($target eq 'web') {
48: return $bodytext;
1.159 albertel 49: }
50: return '';
1.10 albertel 51: }
52:
53: sub end_web {
1.44 ng 54: return '';
1.10 albertel 55: }
56:
57: sub start_tex {
1.159 albertel 58: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.198 sakharuk 59: my $result='';
1.200 albertel 60: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser);
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) {
77: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
78: $background;
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:
92: &Apache::lontexconvert::jsMath_reset();
1.290 albertel 93: if ($env{'environment.texengine'} eq 'jsMath') {
1.297 albertel 94: $body_tag_start.=&Apache::lontexconvert::jsMath_header();
1.290 albertel 95: }
96: return $body_tag_start;
97: }
1.291 albertel 98:
1.48 albertel 99: sub page_start {
1.159 albertel 100: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
101: my %found;
1.207 albertel 102: foreach my $taginside (@$tagstack) {
1.159 albertel 103: foreach my $taglookedfor ('html','body','form') {
104: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
105: }
106: }
107:
108: my $result;
109: my $head_tag_start;
110: if (!defined($found{'html'})) {
111: $result=&Apache::londefdef::start_html($target,$token,$tagstack,
112: $parstack,$parser,$safeeval);
1.254 www 113: $head_tag_start='<head>'.&Apache::lonmenu::registerurl(undef,$target).
1.261 www 114: &Apache::lonhtmlcommon::htmlareaheaders().
1.270 albertel 115: &Apache::lonhtmlcommon::spellheader().
116: &Apache::lonxml::fontsettings();
1.159 albertel 117: }
118: my $body_tag_start;
1.284 albertel 119: if (!defined($found{'body'}) && $env{'request.state'} eq 'construct'
120: && $env{'environment.remote'} eq 'off') {
1.298 albertel 121: if ($target eq 'web' || $target eq 'edit') {
1.297 albertel 122: $body_tag_start=&Apache::loncommon::bodytag();
123: $body_tag_start.=&Apache::lonxml::message_location();
124: }
1.272 albertel 125: } elsif (!defined($found{'body'})) {
1.159 albertel 126: my $background=&Apache::lonxml::get_param('background',$parstack,
127: $safeeval);
1.290 albertel 128: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
129: $safeeval);
1.299 albertel 130: $body_tag_start=&body_tag_start($target,$background,$bgcolor);
1.291 albertel 131: if ( ($target eq 'web' || $target eq 'webgrade')
132: && $env{'request.state'} ne 'construct') {
1.165 albertel 133: my ($symb,undef,undef,undef,$publicuser)=
134: &Apache::lonxml::whichuser();
135: if ($symb eq '' && !$publicuser) {
1.159 albertel 136: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
1.211 albertel 137: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
1.159 albertel 138: $body_tag_start.=$help;
139: }
140: }
1.245 albertel 141: $body_tag_start.=&Apache::lonxml::message_location();
1.159 albertel 142: }
143: my $form_tag_start;
144: if (!defined($found{'form'})) {
1.281 albertel 145: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="POST" action="';
1.284 albertel 146: my $uri=$env{'request.uri'};
147: if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
1.271 albertel 148: $form_tag_start.=$uri.'">';
1.159 albertel 149: }
150: return ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.105 albertel 151: }
152:
1.141 matthew 153: #use Time::HiRes();
1.105 albertel 154: sub get_resource_name {
1.159 albertel 155: my ($parstack,$safeeval)=@_;
1.204 albertel 156: if (defined($Apache::lonhomework::name)) {
157: return $Apache::lonhomework::name;
158: }
1.279 albertel 159: my ($symb)=&Apache::lonxml::whichuser();
160: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 161: if ($name eq '') {
162: $name=&Apache::lonnet::EXT('resource.title');
163: if ($name eq 'con_lost') { $name = ''; }
164: }
1.204 albertel 165: if ($name!~/\S+/) {
1.284 albertel 166: $name=$env{'request.uri'};
1.205 albertel 167: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 168: }
1.159 albertel 169: $Apache::lonhomework::name=$name;
170: return $name;
1.105 albertel 171: }
172:
173: sub setup_rndseed {
1.159 albertel 174: my ($safeeval)=@_;
175: my $rndseed;
1.162 albertel 176: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 177: if ($env{'request.state'} eq "construct" || $symb eq '' ||
1.247 albertel 178: $Apache::lonhomework::history{'resource.CODE'}) {
1.284 albertel 179: $rndseed=$env{'form.rndseed'};
1.159 albertel 180: if (!$rndseed) {
1.162 albertel 181: $rndseed=$Apache::lonhomework::history{'rndseed'};
182: if (!$rndseed) {
183: $rndseed=time;
184: }
1.284 albertel 185: $env{'form.rndseed'}=$rndseed;
1.162 albertel 186: }
1.284 albertel 187: if ($env{'form.resetdata'} eq &mt('New Problem Variation') ||
188: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 189: srand(time);
190: $rndseed=int(rand(2100000000));
1.284 albertel 191: $env{'form.rndseed'}=$rndseed;
192: delete($env{'form.resetdata'});
193: delete($env{'form.newrandomization'});
1.159 albertel 194: }
1.187 albertel 195: if (defined($rndseed) && $rndseed ne int($rndseed)) {
196: $rndseed=join(',',&Math::Random::random_seed_from_phrase($rndseed));
197: }
1.247 albertel 198: if ($Apache::lonhomework::history{'resource.CODE'}) {
199: $rndseed=&Apache::lonnet::rndseed();
200: }
1.221 albertel 201: if ($safeeval) {
202: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 203: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 204: }
1.159 albertel 205: }
206: return $rndseed;
1.105 albertel 207: }
208:
1.268 albertel 209: sub remember_problem_state {
210: return '
1.284 albertel 211: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
212: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
213: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 214: }
215:
1.105 albertel 216: sub problem_edit_header {
1.268 albertel 217: return '<input type="hidden" name="submitted" value="edit" />'.
218: &Apache::structuretags::remember_problem_state().'
1.210 albertel 219: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 220: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
221: <input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
222: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
223: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
224: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.260 albertel 225: &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
226: .'</td></tr></table>'.
1.282 albertel 227: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 228: }
229:
230: sub problem_edit_footer {
1.210 albertel 231: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 232: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
233: &Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).
1.280 albertel 234: "\n</form>\n".&Apache::loncommon::endbodytag()."\n</html>";
1.105 albertel 235: }
236:
1.235 albertel 237: sub option {
238: my ($value,$name) = @_;
239: my $result ="<option value='".$value."' ";
1.284 albertel 240: if ($env{'form.'.$name} eq $value) {
1.235 albertel 241: $result.=" selected='on' ";
242: }
243: $result.='>';
244: return $result;
245: }
246:
1.105 albertel 247: sub problem_web_to_edit_header {
1.159 albertel 248: my ($rndseed)=@_;
1.210 albertel 249: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />
1.243 matthew 250: <input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />
251: <input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
252: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
253: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 254: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 255: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 256: $rndseed.'"
1.270 albertel 257: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 258: <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 259: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.228 www 260: $result.= ' />'.&mt(' Show All Foils').
261: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.281 albertel 262: '</label><hr />';
1.235 albertel 263: $result.="
264: <nobr>
265: Problem Status:
266: <select name='problemstate'>
1.270 albertel 267: <option value=''></option>
1.235 albertel 268: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
269: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
270: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
271: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
272: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
273: </select>
274: </nobr>
275: <nobr>
276: Problem Type:
277: <select name='problemtype'>
1.270 albertel 278: <option value=''></option>
1.242 albertel 279: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
280: ".&option('problem','problemtype').&mt("Homework problem")."</option>
281: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 282: </select>
283: </nobr>
284: <nobr>
285: Feedback Mode:
286: <select name='problemstatus'>
287: <option value=''></option>
1.242 albertel 288: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
289: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 290: </select>
291: </nobr>
1.242 albertel 292: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 293: <hr />";
1.284 albertel 294: my $numtoanalyze=$env{'form.numtoanalyze'};
1.176 albertel 295: if (!$numtoanalyze) { $numtoanalyze=20; }
1.210 albertel 296: $result.= '<input type="submit" name="problemmode" value='.
297: &mt('"Calculate answers').'" /> for
1.136 albertel 298: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 299: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
300: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 301: '',undef,undef,300).
1.210 albertel 302: '<hr />';
1.159 albertel 303: return $result;
1.48 albertel 304: }
305:
1.65 albertel 306: sub initialize_storage {
1.159 albertel 307: %Apache::lonhomework::results=();
1.162 albertel 308: %Apache::lonhomework::history=();
1.159 albertel 309: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.284 albertel 310: if ($env{'request.state'} eq 'construct' || $symb eq '') {
1.159 albertel 311: %Apache::lonhomework::history=
1.284 albertel 312: &Apache::lonnet::tmprestore($env{'request.uri'},'',$domain,$name);
1.159 albertel 313: my ($temp)=keys %Apache::lonhomework::history ;
314: &Apache::lonxml::debug("Return message of $temp");
315: } else {
316: %Apache::lonhomework::history=
317: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
318: }
319: #ignore error conditions
1.67 albertel 320: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 321: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 322: }
323:
324: # -------------------------------------------------------------finalize_storage
325: # Stores away the result has to a student's environment
326: # checks form.grade_ for specific values, other wises stores
327: # to the running users environment
1.285 raeburn 328: # Will increment totals for attempts, students, and corrects
329: # if running user has student role.
1.65 albertel 330: sub finalize_storage {
1.159 albertel 331: my $result;
1.289 albertel 332: if (%Apache::lonhomework::results) {
1.159 albertel 333: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.284 albertel 334: if ($env{'request.state'} eq 'construct' || $symb eq '') {
335: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 336: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.284 albertel 337: $env{'request.uri'},'',$domain,$name);
1.159 albertel 338: &Apache::lonxml::debug('Construct Store return message:'.$result);
339: } else {
340: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
341: $symb,$courseid,$domain,$name);
342: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 343: if ($env{'request.role'} =~/^st/) {
344: &store_aggregates($symb,$courseid);
345: }
1.159 albertel 346: }
1.67 albertel 347: }
1.159 albertel 348: return $result;
1.65 albertel 349: }
1.289 albertel 350: use Data::Dumper;
1.65 albertel 351:
1.285 raeburn 352: # -------------------------------------------------------------store_aggregates
353: # Sends hash of values to be incremented in nohist_resourcetracker.db
354: # for the course. Increments total number of attempts, unique students
355: # and corrects for each part for an instance of a problem, as appropriate.
356: sub store_aggregates {
357: my ($symb,$courseid) = @_;
1.286 albertel 358: my %aggregate;
359: my @parts;
1.288 albertel 360: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
361: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 362: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 363: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 364: push(@parts, $1);
1.285 raeburn 365: }
366: }
1.286 albertel 367: foreach my $part (@parts) {
368: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
369: eq 'APPROX_ANS' ||
370: $Apache::lonhomework::results{'resource.'.$part.'.award'}
371: eq 'EXACT_ANS') {
1.287 albertel 372: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 373: }
1.286 albertel 374: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 375: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 376: } else {
1.293 albertel 377: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 378: if ($last_reset) {
1.293 albertel 379: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 380: $aggregate{$symb."\0".$part."\0users"} = 1;
381: }
382: }
1.285 raeburn 383: }
1.287 albertel 384: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 385: }
1.292 raeburn 386: if (keys (%aggregate) > 0) {
1.289 albertel 387: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 388: $cdomain,$cname);
389: }
390: }
1.289 albertel 391:
1.65 albertel 392: sub checkout_msg {
1.211 albertel 393: my %lt=&Apache::lonlocal::texthash(
394: 'resource'=>'The resource needs to be checked out',
395: '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.',
396: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
397: 'checkout'=>'Check out Exam for Viewing',
398: 'checkout?'=>'Check out Exam?');
1.159 albertel 399: return (<<ENDCHECKOUT);
1.211 albertel 400: <h2>$lt{'resource'}</h2>
401: <p>$lt{'id_expln'}</p>
402: <font color="red">
403: <p>$lt{'warning'}</p>
1.91 albertel 404: </font>
1.284 albertel 405: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.91 albertel 406: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 407: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 408: </form>
409: ENDCHECKOUT
410: }
411:
1.252 albertel 412: sub firstaccess_msg {
1.253 albertel 413: my ($time,$symb)=@_;
414: my ($map)=&Apache::lonnet::decode_symb($symb);
415: my $foldertitle=&Apache::lonnet::gettitle($map);
416: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.252 albertel 417: return (<<ENDCHECKOUT);
1.253 albertel 418: <h2>The resources in "$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 419: <form name="markaccess" method="POST" action="$env{'request.uri'}">
1.252 albertel 420: <input type="hidden" name="markaccess" value="yes" />
421: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
422: </form>
423: ENDCHECKOUT
424: }
425:
1.204 albertel 426: sub init_problem_globals {
427: my ($type)=@_;
428: #initialize globals
429: if ($type eq 'problem') {
430: $Apache::inputtags::part='0';
431: @Apache::inputtags::partlist=('0');
1.266 albertel 432: $Apache::lonhomework::problemstatus=&get_problem_status('0');
433: $Apache::lonhomework::ignore_response_errors=0;
434: } elsif ($type eq 'library') {
1.204 albertel 435: $Apache::inputtags::part='';
436: @Apache::inputtags::partlist=();
437: $Apache::lonhomework::problemstatus='';
1.266 albertel 438: $Apache::lonhomework::ignore_response_errors=1;
1.304 albertel 439: } elsif ($type eq 'Task') {
440: $Apache::inputtags::part='0';
441: @Apache::inputtags::partlist=('0');
442: $Apache::lonhomework::problemstatus='';
443: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 444: }
445: @Apache::inputtags::responselist = ();
446: @Apache::inputtags::importlist = ();
447: @Apache::inputtags::previous=();
448: @Apache::inputtags::previous_version=();
449: $Apache::structuretags::printanswer='No';
450: @Apache::structuretags::whileconds=();
451: @Apache::structuretags::whilebody=();
452: @Apache::structuretags::whileline=();
453: $Apache::lonhomework::scantronmode=0;
454: undef($Apache::lonhomework::name);
455:
456: }
457:
458: sub reset_problem_globals {
459: my ($type)=@_;
460: undef(%Apache::lonhomework::history);
461: undef(%Apache::lonhomework::results);
462: undef($Apache::inputtags::part);
1.208 albertel 463: #don't undef this, lonhomework.pm takes care of this, we use this to
464: #detect if we try to do 2 problems in one file
465: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 466: undef($Apache::lonhomework::name);
467: }
468:
1.241 albertel 469: sub set_problem_state {
1.240 albertel 470: my ($part)=@_;
1.284 albertel 471: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 472: $Apache::lonhomework::history{"resource.$part.solved"}=
473: 'correct_by_student';
474: }
475: }
476:
1.241 albertel 477: sub get_problem_status {
478: my ($part)=@_;
1.267 albertel 479: my $problem_status;
1.284 albertel 480: if ($env{'request.state'} eq 'construct' &&
481: defined($env{'form.problemstatus'})) {
482: $problem_status=$env{'form.problemstatus'};
1.267 albertel 483: } else {
484: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
485: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 486: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 487: }
488: return $problem_status;
489: }
490:
1.9 albertel 491: sub start_problem {
1.159 albertel 492: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 493:
1.184 albertel 494: if ( $Apache::inputtags::part ne '' ||
495: $Apache::lonhomework::parsing_a_problem) {
496: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
497: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
1.159 albertel 498: return '';
499: }
1.184 albertel 500:
501: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 502: &init_problem_globals('problem');
1.166 albertel 503:
1.284 albertel 504: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 505: $Apache::lonhomework::scantronmode=1;
506: }
1.161 albertel 507:
1.246 albertel 508: &initialize_storage();
1.159 albertel 509: if ($target ne 'analyze') {
510: if ($target eq 'web') {
511: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 512: }
1.284 albertel 513: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 514: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 515: if (($env{'request.state'} eq 'construct') &&
516: defined($env{'form.problemtype'})) {
517: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 518: }
1.240 albertel 519: &Apache::lonxml::debug("Found this to be of type :$Apache::ltonhomework::type:");
1.159 albertel 520: }
1.164 albertel 521: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 522: my $uri=$env{'request.uri'};
1.159 albertel 523: if ($uri=~/\.(\w+)$/) {
524: $Apache::lonhomework::type=$1;
525: &Apache::lonxml::debug("Using type of $1");
526: } else {
527: $Apache::lonhomework::type='problem';
528: &Apache::lonxml::debug("Using default type, problem, :$uri:");
529: }
1.87 albertel 530: }
1.301 albertel 531: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 532:
1.159 albertel 533: #added vars to the scripting enviroment
1.213 albertel 534: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 535: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 536: &Apache::run::run($expression,$safeeval);
1.159 albertel 537: my $status;
538: my $accessmsg;
539:
540: #should get back a <html> or the neccesary stuff to start XML/MathML
541: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
542: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.284 albertel 543: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 544:
545: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
546: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
547: $target eq 'tex') {
548: #handle exam checkout
549: if ($Apache::lonhomework::type eq 'exam') {
550: my $token=
551: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 552: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 553: $token=&Apache::lonxml::maketoken();
554: $Apache::lonhomework::history{"resource.0.outtoken"}=
555: $token;
556: }
557: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 558: }
1.284 albertel 559: if ($env{'form.markaccess'}) {
1.252 albertel 560: &Apache::lonnet::set_first_access('map');
561: }
1.159 albertel 562: #handle rand seed in construction space
563: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 564: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 565: if ($env{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 566: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
567: $rndseed.'" />'.
568: '<input type="submit" name="resetdata"
1.211 albertel 569: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 570: '<input type="hidden" name="username"
1.284 albertel 571: value="'.$env{'form.username'}.'" />';
572: if ($env{'user.adv'}) {
1.267 albertel 573: $form_tag_start.=
1.300 albertel 574: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 575: if (defined($env{'form.showallfoils'})) {
1.267 albertel 576: $form_tag_start.='checked="on"';
577: }
1.300 albertel 578: $form_tag_start.= ' />'.&mt(' Show All Foils').
579: '</label>';
1.267 albertel 580: }
581: $form_tag_start.='<hr />';
1.162 albertel 582: }
1.159 albertel 583: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
584: push (@Apache::inputtags::status,$status);
585: my $expression='$external::datestatus="'.$status.'";';
586: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
587: &Apache::run::run($expression,$safeeval);
588: &Apache::lonxml::debug("Got $status");
589: if (( $status eq 'CLOSED' ) ||
590: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 591: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 592: ( $status eq 'BANNED') ||
1.216 albertel 593: ( $status eq 'UNAVAILABLE') ||
594: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 595: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
596: if ( $target eq "web" ) {
597: $result.= $head_tag_start.'</head>';
598: my $msg=$body_tag_start;
599: if ($status eq 'UNAVAILABLE') {
1.245 albertel 600: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 601: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 602: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 603: }
1.216 albertel 604: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 605: $msg.='The problem '.$accessmsg;
606: } elsif ($status eq 'UNCHECKEDOUT') {
607: $msg.=&checkout_msg;
1.252 albertel 608: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 609: $msg.=&firstaccess_msg($accessmsg,$symb);
1.159 albertel 610: }
611: $result.=$msg.'<br />';
612: } elsif ($target eq 'tex') {
613: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
614: if ($status eq 'UNAVAILABLE') {
1.211 albertel 615: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 616: } else {
1.211 albertel 617: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 618: }
619: }
620: } elsif ($target eq 'web') {
621: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 622: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 623: $body_tag_start \n $form_tag_start".
1.227 albertel 624: '<input type="hidden" name="submitted" value="yes" />';
625: # create a page header and exit
1.284 albertel 626: if ($env{'request.state'} eq "construct") {
627: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 628: }
629: # if we are viewing someone else preserve that info
1.284 albertel 630: if (defined $env{'form.grade_symb'}) {
1.227 albertel 631: foreach my $field ('symb','courseid','domain','username') {
632: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 633: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 634: }
635: }
636: } elsif ($target eq 'tex') {
1.192 sakharuk 637: my $startminipage = '';
1.284 albertel 638: if (not $env{'form.problem_split'}=~/yes/) {
1.192 sakharuk 639: $startminipage = '\begin{minipage}{\textwidth}';
1.178 sakharuk 640: }
1.159 albertel 641: my $id = $Apache::inputtags::part;
642: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 643: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.223 sakharuk 644: my @packages = split /,/,$packages;
645: my $allow_print_points = 0;
646: foreach my $partial_key (@packages) {
1.230 albertel 647: if ($partial_key=~m/^part_0$/) {
1.223 sakharuk 648: $allow_print_points=1;
1.159 albertel 649: }
650: }
1.276 albertel 651: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
652: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1.302 albertel 653: if (lc($env{'course.'.$env{'request.course.id'}.
654: '.disableexampointprint'}) eq 'yes') {
655: $allow_print_points=0;
656: }
1.159 albertel 657: my $duedate = &Apache::lonnet::EXT("resource.$id.duedate");
658: $duedate = POSIX::strftime("%c",localtime($duedate));
659: my $temp_file;
1.284 albertel 660: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1.159 albertel 661: if (-e $filename) {
662: $temp_file = Apache::File->new($filename);
663: } else {
664: $temp_file = Apache::File->new('>>'.$filename);
665: }
666: my @due_file_content = <$temp_file>;
667: my $due_file_content = $due_file_content[$#due_file_content];
668: chomp $due_file_content;
1.257 sakharuk 669: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.304 albertel 670: 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 ';
671: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
672: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1.159 albertel 673: if ($due_file_content ne $duedate) {
674: $temp_file = Apache::File->new('>'.$filename);
675: print $temp_file "$duedate\n";
1.284 albertel 676: if (not $env{'request.symb'} =~ m/\.page_/) {
1.159 albertel 677: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1.304 albertel 678: $result .= $begin_doc.
679: '\textit{Due date: '.$duedate.'} '.$toc_line;
1.159 albertel 680: } else {
1.304 albertel 681: $result .= $begin_doc.$toc_line;
1.159 albertel 682: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
683: }
1.104 sakharuk 684: } else {
1.159 albertel 685: $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
1.104 sakharuk 686: }
1.101 sakharuk 687: } else {
1.284 albertel 688: if (not $env{'request.symb'} =~ m/\.page_/) {
1.304 albertel 689: $result .= $begin_doc.$toc_line;
1.159 albertel 690: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
691: } else {
692: $result .= '\vskip 1mm \\\\\\\\';
693: }
694: }
1.99 sakharuk 695: }
1.159 albertel 696: } elsif ($target eq 'edit') {
697: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
698: &problem_edit_header();
1.226 albertel 699: $Apache::lonxml::warnings_error_header=
700: &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 701: my $temp=&Apache::edit::insertlist($target,$token);
702: $result.=$temp;
703: } elsif ($target eq 'modified') {
704: $result=$token->[4];
705: $result.=&Apache::edit::handle_insert();
706: } else {
707: # page_start returned a starting result, delete it if we don't need it
708: $result = '';
1.99 sakharuk 709: }
1.159 albertel 710: return $result;
1.9 albertel 711: }
712:
713: sub end_problem {
1.159 albertel 714: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
715: my $result='';
716: my $status=$Apache::inputtags::status['-1'];
717: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
718: $target eq 'tex') {
1.249 albertel 719: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 720: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 721: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
722: &Apache::inputtags::grade;
723: } else {
724: # move any submission data to .hidden
725: &Apache::inputtags::hidealldata($Apache::inputtags::part);
726: }
1.159 albertel 727: } elsif ( ($target eq 'web' || $target eq 'tex') &&
728: $Apache::inputtags::part eq '0' &&
1.252 albertel 729: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 730: # if part is zero, no <part>s existed, so we need show the current
731: # grading status
732: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
733: $result.= $gradestatus;
734: }
735: if (
1.284 albertel 736: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 737: ($target eq 'answer') || ($target eq 'tex')
738: ) {
1.227 albertel 739: if ($target ne 'tex' &&
1.284 albertel 740: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 741: $result.="</form>";
742: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
1.159 albertel 743: }
744: if ($target eq 'web') {
1.281 albertel 745: $result.=&Apache::lonxml::xmlend().'</html>';
1.159 albertel 746: } elsif ($target eq 'tex') {
1.178 sakharuk 747: my $endminipage = '';
1.284 albertel 748: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 749: $endminipage = '\end{minipage}';
750: }
1.284 albertel 751: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 752: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 753: $result=~s/<\/html>//;
1.159 albertel 754: } else {
1.262 sakharuk 755: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 756: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 757: $result .= $endminipage.'\end{document} ';
758: } else {
759: $result .= '';
760: }
1.159 albertel 761: }
762: }
763: }
764: if ($target eq 'grade') {
765: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
766: &finalize_storage();
767: }
1.284 albertel 768: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
769: && $env{'form.answer_output_mode'} ne 'tex') {
1.294 albertel 770: $result.=&Apache::lonxml::xmlend().'</html>';
771: # normally we get it from above, but in CSTR
1.172 albertel 772: # we always show answer mode too.
1.159 albertel 773: }
774: } elsif ($target eq 'meta') {
775: if ($Apache::inputtags::part eq '0') {
1.179 albertel 776: @Apache::inputtags::response=();
1.159 albertel 777: $result=&Apache::response::mandatory_part_meta;
778: }
1.215 albertel 779: $result.=&Apache::response::meta_part_order();
1.258 albertel 780: $result.=&Apache::response::meta_response_order();
1.159 albertel 781: } elsif ($target eq 'edit') {
782: &Apache::lonxml::debug("in end_problem with $target, edit");
783: $result = &problem_edit_footer();
784: }
1.155 albertel 785:
1.284 albertel 786: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 787: &Apache::inputtags::check_for_duplicate_ids();
788: }
1.204 albertel 789:
790: &reset_problem_globals('problem');
1.159 albertel 791:
792: return $result;
1.48 albertel 793: }
794:
1.108 albertel 795:
1.48 albertel 796: sub start_library {
1.159 albertel 797: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
798: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 799: if ($$tagstack[0] eq 'library') {
800: &init_problem_globals('library');
801: $Apache::lonhomework::type='problem';
802: }
1.159 albertel 803: if ($target eq 'edit') {
804: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
805: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
806: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
807: &problem_edit_header();
808: my $temp=&Apache::edit::insertlist($target,$token);
809: $result.=$temp;
810: } elsif ($target eq 'modified') {
811: $result=$token->[4];
812: $result.=&Apache::edit::handle_insert();
813: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 814: $env{'request.state'} eq "construct" ) {
1.159 albertel 815: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
816: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
817: my $name=&get_resource_name($parstack,$safeeval);
818: my $rndseed=&setup_rndseed($safeeval);
819: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 820: $body_tag_start \n $form_tag_start".
1.159 albertel 821: '<input type="hidden" name="submitted" value="yes" />';
822: $result.=&problem_web_to_edit_header($rndseed);
823: }
824: return $result;
1.48 albertel 825: }
826:
827: sub end_library {
1.159 albertel 828: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
829: my $result='';
830: if ($target eq 'edit') {
831: $result=&problem_edit_footer();
832: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 833: $env{'request.state'} eq "construct") {
1.280 albertel 834: $result.='</form>'.&Apache::loncommon::endbodytag().
835: &Apache::lonxml::xmlend();
1.159 albertel 836: }
1.204 albertel 837: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 838: return $result;
1.197 www 839: }
840:
841: sub start_definetag {
842: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
843:
844: my $result;
845:
846: my $name = $token->[2]->{'name'};
847: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
848: if ($name=~/^\//) {
849: $result=
850: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
851: } else {
852: $result=
853: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
854: }
855: $skip=~s/\</\<\;/gs;
856: $skip=~s/\>/\>\;/gs;
857: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
858: return $result;
859: }
860:
861: sub end_definetag {
862: return '';
1.1 albertel 863: }
864:
865: sub start_block {
1.201 albertel 866: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 867:
868: my $result;
1.1 albertel 869:
1.160 albertel 870: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 871: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 872: my $code = $token->[2]->{'condition'};
1.201 albertel 873: if (defined($code)) {
1.137 albertel 874: if (!$Apache::lonxml::default_homework_loaded) {
875: &Apache::lonxml::default_homework_load($safeeval);
876: }
1.131 albertel 877: $result = &Apache::run::run($code,$safeeval);
878: &Apache::lonxml::debug("block :$code: returned :$result:");
879: } else {
880: $result='1';
881: }
882: if ( ! $result ) {
1.201 albertel 883: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 884: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
885: }
886: $result='';
887: } elsif ($target eq 'edit') {
888: $result .=&Apache::edit::tag_start($target,$token);
889: $result .=&Apache::edit::text_arg('Test Condition:','condition',
890: $token,40);
891: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
892: } elsif ($target eq 'modified') {
893: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
894: $safeeval,'condition');
895: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 896: }
1.131 albertel 897: return $result;
1.1 albertel 898: }
899:
900: sub end_block {
1.167 www 901: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
902: my $result;
903: if ($target eq "edit") {
904: $result.= &Apache::edit::tag_end($target,$token,'');
905: }
906: return $result;
907: }
908:
909: sub start_languageblock {
1.201 albertel 910: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 911:
912: my $result;
913:
914: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
915: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 916: my $include = $token->[2]->{'include'};
917: my $exclude = $token->[2]->{'exclude'};
918: my %languages=&Apache::loncommon::display_languages();
919: $result='1';
920: if ($include) {
921: $result='';
922: foreach (split(/\,/,$include)) {
923: if ($languages{$_}) { $result='1'; }
924: }
925: }
926: if ($exclude) {
927: foreach (split(/\,/,$exclude)) {
928: if ($languages{$_}) { $result='0'; }
929: }
930: }
931: if ( ! $result ) {
932: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
933: $style);
934: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
935: }
936: $result='';
1.167 www 937: } elsif ($target eq 'edit') {
938: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 939: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 940: $token,40);
1.211 albertel 941: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 942: $token,40);
943: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
944: } elsif ($target eq 'modified') {
945: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 946: $safeeval,'include',
947: 'exclude');
1.167 www 948: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
949: }
950: return $result;
951: }
952:
953: sub end_languageblock {
1.170 www 954: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
955: my $result;
1.201 albertel 956: if ($target eq "edit") {
1.170 www 957: $result.= &Apache::edit::tag_end($target,$token,'');
958: }
959: return $result;
960: }
961:
962: sub start_instructorcomment {
1.201 albertel 963: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 964:
965: my $result;
966:
967: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
968: $target eq 'tex' || $target eq 'analyze') {
1.284 albertel 969: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
970: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 971: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
972: $parser,$style);
1.170 www 973: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
974: }
975: $result='';
976: } elsif ($target eq 'edit') {
977: $result .=&Apache::edit::tag_start($target,$token);
978: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
979: }
980: return $result;
981: }
982:
983: sub end_instructorcomment {
1.159 albertel 984: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 985: my $result;
986: if ($target eq "edit") {
987: $result.= &Apache::edit::tag_end($target,$token,'');
988: }
989: return $result;
1.4 tsai 990: }
991:
992: sub start_while {
1.159 albertel 993: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
994:
1.160 albertel 995: my $result;
1.161 albertel 996: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 997: $target eq 'tex' || $target eq 'analyze') {
998: my $code = $token->[2]->{'condition'};
1.4 tsai 999:
1.160 albertel 1000: push( @Apache::structuretags::whileconds, $code);
1001: if (!$Apache::lonxml::default_homework_loaded) {
1002: &Apache::lonxml::default_homework_load($safeeval);
1003: }
1004: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 1005: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 1006: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1007: push( @Apache::structuretags::whileline, $token->[5]);
1008: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1009: if ( $result ) {
1010: &Apache::lonxml::newparser($parser,\$bodytext);
1011: }
1012: } elsif ($target eq 'edit') {
1013: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1014: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1015: $token,40);
1016: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1017: } elsif ($target eq 'modified') {
1018: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1019: $safeeval,'condition');
1020: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1021: }
1.160 albertel 1022: return $result;
1.4 tsai 1023: }
1024:
1025: sub end_while {
1.159 albertel 1026: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1027: my $result;
1028:
1029: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1030: $target eq 'tex' || $target eq 'analyze') {
1031: my $code = pop(@Apache::structuretags::whileconds);
1032: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1033: my $line = pop(@Apache::structuretags::whileline);
1034: my $return = &Apache::run::run($code,$safeeval);
1035: my $starttime=time;
1036: my $error=0;
1037: while ($return) {
1038: if (time-$starttime >
1039: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1040: #$return = 0; $error=1; next;
1.161 albertel 1041: }
1042: $result.=&Apache::scripttag::xmlparse($bodytext);
1043: $return = &Apache::run::run($code,$safeeval);
1044: }
1045: if ($error) {
1.270 albertel 1046: &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 1047: }
1048: } elsif ($target eq "edit") {
1049: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1050: }
1.160 albertel 1051: return $result;
1.1 albertel 1052: }
1.6 tsai 1053:
1.160 albertel 1054: # <randomlist show="1">
1.6 tsai 1055: # <tag1>..</tag1>
1056: # <tag2>..</tag2>
1057: # <tag3>..</tag3>
1.160 albertel 1058: # ...
1.6 tsai 1059: # </randomlist>
1060: sub start_randomlist {
1.159 albertel 1061: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1062: my $result;
1063: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1064: $target eq 'tex' || $target eq 'analyze') {
1065: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 ! albertel 1066: my $b_parser= HTML::LCParser->new(\$body);
! 1067: $b_parser->xml_mode(1);
! 1068: $b_parser->marked_sections(1);
1.159 albertel 1069: my $b_tok;
1070: my @randomlist;
1071: my $list_item;
1072: while($b_tok = $b_parser->get_token() ) {
1073: if($b_tok->[0] eq 'S') { # start tag
1074: # get content of the tag until matching end tag
1075: # get all text upto the matching tag
1076: # and push the content into @randomlist
1077: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1078: $b_parser);
1079: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1080: push(@randomlist,$list_item);
1081: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1082: # $list_item</b>";
1083: }
1084: if($b_tok->[0] eq 'T') { # text
1085: # what to do with text in between tags?
1086: # print "<b>TEXT $b_tok->[1]</b><br />";
1087: }
1088: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1089: # print "<b>END-TAG $b_tok->[1]</b><br />";
1090: # }
1091: }
1.303 albertel 1092: if (@randomlist) {
1093: my @idx_arr = (0 .. $#randomlist);
1094: &Apache::structuretags::shuffle(\@idx_arr);
1095: my $bodytext = '';
1096: my $show=$#randomlist;
1097: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1098: $showarg--;
1099: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1100: for(0 .. $show) {
1101: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1102: }
1103: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1104: }
1105: } elsif ($target eq 'edit' ) {
1106: $result .=&Apache::edit::tag_start($target,$token);
1107: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1108: $token,5);
1109: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1110: } elsif ($target eq 'modified' ) {
1111: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1112: $safeeval,'show');
1113: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1114: }
1115: return $result;
1.7 tsai 1116: }
1117:
1118: sub shuffle {
1119: my $a=shift;
1120: my $i;
1.303 albertel 1121: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1122: &Apache::response::pushrandomnumber();
1.159 albertel 1123: for($i=@$a;--$i;) {
1124: my $j=int(&Math::Random::random_uniform() * ($i+1));
1125: next if $i == $j;
1126: @$a[$i,$j] = @$a[$j,$i];
1127: }
1.251 albertel 1128: &Apache::response::poprandomnumber();
1.7 tsai 1129: }
1.6 tsai 1130: }
1131:
1132: sub end_randomlist {
1.159 albertel 1133: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1134: my $result;
1135: if ($target eq 'edit' ) {
1136: $result=&Apache::edit::tag_end($target,$token,
1137: 'End Randomly Parsed Block');
1138: }
1139: return $result;
1.6 tsai 1140: }
1141:
1.283 albertel 1142: sub ordered_show_check {
1143: my $last_part=$Apache::inputtags::partlist[-2];
1144: my $in_order=
1145: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1146: my $in_order_show=1;
1147: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1148: $in_order_show=&Apache::response::check_status($last_part);
1149: }
1150: return $in_order_show;
1151: }
1152:
1.11 albertel 1153: sub start_part {
1.159 albertel 1154: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1155: my $result='';
1156: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1157: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1158: $Apache::inputtags::part=$id;
1.177 albertel 1159: push(@Apache::inputtags::partlist,$id);
1160: @Apache::inputtags::response=();
1.159 albertel 1161: @Apache::inputtags::previous=();
1162: @Apache::inputtags::previous_version=();
1.241 albertel 1163: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1164: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1165: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1166: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1167: my $in_order_show=&ordered_show_check();
1.214 albertel 1168: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1169: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1170: &Apache::run::run($expression,$safeeval);
1.159 albertel 1171:
1172: if ($target eq 'meta') {
1.224 www 1173: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1174: return &Apache::response::mandatory_part_meta.
1175: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1176: } elsif ($target eq 'web' || $target eq 'grade' ||
1177: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1178: if ($hidden || !$in_order_show) {
1.159 albertel 1179: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1180: } else {
1181: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1182: push (@Apache::inputtags::status,$status);
1183: my $expression='$external::datestatus="'.$status.'";';
1184: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1185: &Apache::run::run($expression,$safeeval);
1.284 albertel 1186: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1187: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1188: }
1.216 albertel 1189: if (( $status eq 'CLOSED' ) ||
1190: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1191: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1192: ( $status eq 'BANNED') ||
1193: ( $status eq 'UNAVAILABLE') ||
1194: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 1195: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1196: if ( $target eq "web" ) {
1.211 albertel 1197: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1198: } elsif ( $target eq 'tex' ) {
1.284 albertel 1199: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1200: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1201: } else {
1.211 albertel 1202: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1203: }
1.159 albertel 1204: }
1205: } else {
1206: if ($target eq 'tex') {
1.284 albertel 1207: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1208: if ($$tagstack[-2] eq 'td') {
1209: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1210: } else {
1211: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1212: }
1.195 sakharuk 1213: }
1.159 albertel 1214: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1215: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1216: my @allkeys = split /,/,$allkeys;
1217: my $allow_print_points = 0;
1218: foreach my $partial_key (@allkeys) {
1.230 albertel 1219: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1220: if ($1 ne '0') {$allow_print_points=1;}
1221: }
1222: }
1.275 albertel 1223: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1224: if (defined($maxtries) && $maxtries < 0) {
1225: $allow_print_points=0;
1226: }
1.302 albertel 1227: if (lc($env{'course.'.$env{'request.course.id'}.
1228: '.disableexampointprint'}) eq 'yes') {
1229: $allow_print_points=0;
1230: }
1.222 sakharuk 1231: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1232: } elsif ($target eq 'web') {
1233: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1234: }
1235: }
1236: }
1237: } elsif ($target eq 'edit') {
1238: $result.=&Apache::edit::tag_start($target,$token);
1239: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1240: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1241: ' '.
1242: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1243: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1244: } elsif ($target eq 'modified') {
1245: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1246: $safeeval,'id','display');
1.159 albertel 1247: if ($constructtag) {
1.225 albertel 1248: #limiting ids to only letters numbers, and space
1.224 www 1249: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1250: $result = &Apache::edit::rebuild_tag($token);
1251: $result.=&Apache::edit::handle_insert();
1252: }
1253: }
1254: return $result;
1.11 albertel 1255: }
1256:
1257: sub end_part {
1.159 albertel 1258: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1259: &Apache::lonxml::debug("in end_part $target ");
1260: my $status=$Apache::inputtags::status['-1'];
1261: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1262: my $in_order_show=&ordered_show_check();
1.159 albertel 1263: my $result='';
1264: if ( $target eq 'meta' ) {
1265: $result='';
1.249 albertel 1266: } elsif ($target eq 'grade') {
1267: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1268: !$hidden && $in_order_show) {
1.249 albertel 1269: $result=&Apache::inputtags::grade;
1270: } else {
1271: # move any submission data to .hidden
1272: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1273: }
1.283 albertel 1274: } elsif (($target eq 'web' || $target eq 'tex') &&
1275: !$hidden && $in_order_show) {
1.159 albertel 1276: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1277: $target);
1.212 albertel 1278: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1279: $gradestatus='';
1280: }
1.159 albertel 1281: $result=$gradestatus;
1.265 sakharuk 1282: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1283: } elsif ($target eq 'edit') {
1284: $result=&Apache::edit::end_table();
1.159 albertel 1285: }
1286: pop @Apache::inputtags::status;
1287: $Apache::inputtags::part='';
1.295 albertel 1288: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1289: return $result;
1.11 albertel 1290: }
1.1 albertel 1291:
1.25 albertel 1292: sub start_preduedate {
1.159 albertel 1293: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1294: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1.236 albertel 1295: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1296: if (!$Apache::lonhomework::scantronmode &&
1297: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1298: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1299: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.159 albertel 1300: &Apache::lonxml::get_all_text("/preduedate",$parser);
1301: }
1.24 albertel 1302: }
1.159 albertel 1303: return '';
1.24 albertel 1304: }
1305:
1.25 albertel 1306: sub end_preduedate {
1.159 albertel 1307: return '';
1.24 albertel 1308: }
1309:
1.25 albertel 1310: sub start_postanswerdate {
1.159 albertel 1311: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.234 albertel 1312: if ($target eq 'web' || $target eq 'grade') {
1.300 albertel 1313: if ($Apache::lonhomework::scantronmode ||
1314: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.159 albertel 1315: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1316: }
1317: } elsif ($target eq 'tex') {
1.234 albertel 1318: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1.159 albertel 1319: }
1320: return '';
1.24 albertel 1321: }
1322:
1.25 albertel 1323: sub end_postanswerdate {
1.159 albertel 1324: return '';
1.24 albertel 1325: }
1326:
1.25 albertel 1327: sub start_notsolved {
1.159 albertel 1328: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1329: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1330: $target eq 'tex') {
1331: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1332: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1333: if ($gradestatus =~ /^correct/ &&
1334: &Apache::response::show_answer()) {
1.159 albertel 1335: &Apache::lonxml::debug("skipping");
1336: &Apache::lonxml::get_all_text("/notsolved",$parser);
1337: }
1.24 albertel 1338: }
1.159 albertel 1339: return '';
1.24 albertel 1340: }
1341:
1.25 albertel 1342: sub end_notsolved {
1.159 albertel 1343: return '';
1.24 albertel 1344: }
1345:
1346: sub start_solved {
1.159 albertel 1347: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1348: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1349: $target eq 'tex') {
1350: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1351: if ($gradestatus !~ /^correct/ ||
1352: !&Apache::response::show_answer()) {
1.159 albertel 1353: &Apache::lonxml::get_all_text("/solved",$parser);
1354: }
1.24 albertel 1355: }
1.159 albertel 1356: return '';
1.24 albertel 1357: }
1358:
1359: sub end_solved {
1.248 albertel 1360: return '';
1361: }
1362:
1363: sub start_problemtype {
1364: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1365: my $result;
1366: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1367: $target eq 'tex' || $target eq 'analyze') {
1368: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1369: if (!defined($mode)) { $mode='show'; }
1370: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1371: my $found=0;
1372: foreach my $type (split(',',$for)) {
1373: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1374: }
1375: if ($mode eq 'show' && !$found) {
1376: &Apache::lonxml::get_all_text("/problemtype",$parser);
1377: }
1378: if ($mode eq 'hide' && $found) {
1379: &Apache::lonxml::get_all_text("/problemtype",$parser);
1380: }
1381: } elsif ($target eq 'edit') {
1382: $result .=&Apache::edit::tag_start($target,$token);
1383: $result.=&Apache::edit::select_arg('Mode:','mode',
1384: [['show','Show'],
1385: ['hide','Hide']]
1386: ,$token);
1387: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1388: [ ['exam','Exam/Quiz Problem'],
1389: ['survey','Survey'],
1390: ['problem','Homework Problem'] ]
1391: ,$token);
1392: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1393: } elsif ($target eq 'modified') {
1394: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1395: $safeeval,'mode','for');
1396: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1397: }
1398: return $result;
1399: }
1400:
1401: sub end_problemtype {
1.159 albertel 1402: return '';
1.24 albertel 1403: }
1.34 albertel 1404:
1405: sub start_startouttext {
1.159 albertel 1406: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1407: my @result=(''.'');
1408: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1409: return (@result);
1.34 albertel 1410: }
1.159 albertel 1411:
1.34 albertel 1412: sub end_startouttext {
1.159 albertel 1413: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1414: my $result='';
1415: my $text='';
1416:
1417: if ($target eq 'edit') {
1418: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1.211 albertel 1419: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1420: <td>".&mt('Delete:').
1.159 albertel 1421: &Apache::edit::deletelist($target,$token)
1422: ."</td>
1.42 albertel 1423: <td>".
1.159 albertel 1424: &Apache::edit::insertlist($target,$token).
1425: &Apache::edit::end_row().
1426: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1427: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1428: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1429: }
1430: if ($target eq 'modified') {
1.219 albertel 1431: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1432: }
1433: if ($target eq 'tex') {
1434: $result .= '\noindent ';
1435: }
1436: return $result;
1.34 albertel 1437: }
1.159 albertel 1438:
1.34 albertel 1439: sub start_endouttext {
1.159 albertel 1440: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1441: my $result='';
1442: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1443: if ($target eq "modified") {
1444: $result='<endouttext />'.
1445: &Apache::edit::handle_insertafter('startouttext'); }
1446: return $result;
1.34 albertel 1447: }
1.159 albertel 1448:
1.34 albertel 1449: sub end_endouttext {
1.159 albertel 1450: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1451: my @result=('','');
1452: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1453: return (@result);
1.34 albertel 1454: }
1.159 albertel 1455:
1.45 albertel 1456: sub delete_startouttext {
1.159 albertel 1457: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1458: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1459: my $text=$$parser['-1']->get_text("/endouttext");
1460: my $ntoken=$$parser['-1']->get_token();
1461: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1462: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1463: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1464: # they did the last time round
1465: &Apache::lonxml::increasedepth($ntoken);
1466: &Apache::lonxml::decreasedepth($ntoken);
1467: return 1;
1.193 www 1468: }
1469:
1470: sub start_simpleeditbutton {
1471: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1472: my $result='';
1.284 albertel 1473: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1474: ($target eq 'web') &&
1.284 albertel 1475: (&Apache::lonnet::allowed('srm',$env{'request.course.id'}))) {
1476: my $url=$env{'request.noversionuri'};
1.193 www 1477: $url=~s/\?.*$//;
1.278 albertel 1478: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1479: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1480: '<a href="'.$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 1481: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1482: }
1483: return $result;
1484: }
1485:
1486: sub end_simpleeditbutton {
1487: return '';
1.45 albertel 1488: }
1.34 albertel 1489:
1.1 albertel 1490: 1;
1491: __END__
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