Annotation of loncom/homework/structuretags.pm, revision 1.297
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.297 ! albertel 4: # $Id: structuretags.pm,v 1.296 2005/06/28 19:56:10 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: && $env{'environment.remote'} eq 'off') {
1.297 ! albertel 121: if ($target eq 'web') {
! 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);
130: $body_tag_start=&body_tag_start($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;
1.204 albertel 439: }
440: @Apache::inputtags::responselist = ();
441: @Apache::inputtags::importlist = ();
442: @Apache::inputtags::previous=();
443: @Apache::inputtags::previous_version=();
444: $Apache::structuretags::printanswer='No';
445: @Apache::structuretags::whileconds=();
446: @Apache::structuretags::whilebody=();
447: @Apache::structuretags::whileline=();
448: $Apache::lonhomework::scantronmode=0;
449: undef($Apache::lonhomework::name);
450:
451: }
452:
453: sub reset_problem_globals {
454: my ($type)=@_;
455: undef(%Apache::lonhomework::history);
456: undef(%Apache::lonhomework::results);
457: undef($Apache::inputtags::part);
1.208 albertel 458: #don't undef this, lonhomework.pm takes care of this, we use this to
459: #detect if we try to do 2 problems in one file
460: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 461: undef($Apache::lonhomework::name);
462: }
463:
1.241 albertel 464: sub set_problem_state {
1.240 albertel 465: my ($part)=@_;
1.284 albertel 466: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 467: $Apache::lonhomework::history{"resource.$part.solved"}=
468: 'correct_by_student';
469: }
470: }
471:
1.241 albertel 472: sub get_problem_status {
473: my ($part)=@_;
1.267 albertel 474: my $problem_status;
1.284 albertel 475: if ($env{'request.state'} eq 'construct' &&
476: defined($env{'form.problemstatus'})) {
477: $problem_status=$env{'form.problemstatus'};
1.267 albertel 478: } else {
479: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
480: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 481: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 482: }
483: return $problem_status;
484: }
485:
1.9 albertel 486: sub start_problem {
1.159 albertel 487: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 488:
1.184 albertel 489: if ( $Apache::inputtags::part ne '' ||
490: $Apache::lonhomework::parsing_a_problem) {
491: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
492: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
1.159 albertel 493: return '';
494: }
1.184 albertel 495:
496: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 497: &init_problem_globals('problem');
1.166 albertel 498:
1.284 albertel 499: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 500: $Apache::lonhomework::scantronmode=1;
501: }
1.161 albertel 502:
1.246 albertel 503: &initialize_storage();
1.159 albertel 504: if ($target ne 'analyze') {
505: if ($target eq 'web') {
506: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 507: }
1.284 albertel 508: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 509: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 510: if (($env{'request.state'} eq 'construct') &&
511: defined($env{'form.problemtype'})) {
512: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 513: }
1.295 albertel 514: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.240 albertel 515: &Apache::lonxml::debug("Found this to be of type :$Apache::ltonhomework::type:");
1.159 albertel 516: }
1.164 albertel 517: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 518: my $uri=$env{'request.uri'};
1.159 albertel 519: if ($uri=~/\.(\w+)$/) {
520: $Apache::lonhomework::type=$1;
521: &Apache::lonxml::debug("Using type of $1");
522: } else {
523: $Apache::lonhomework::type='problem';
524: &Apache::lonxml::debug("Using default type, problem, :$uri:");
525: }
1.87 albertel 526: }
1.58 www 527:
1.159 albertel 528: #added vars to the scripting enviroment
1.213 albertel 529: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 530: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 531: &Apache::run::run($expression,$safeeval);
1.159 albertel 532: my $status;
533: my $accessmsg;
534:
535: #should get back a <html> or the neccesary stuff to start XML/MathML
536: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
537: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.284 albertel 538: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 539:
540: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
541: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
542: $target eq 'tex') {
543: #handle exam checkout
544: if ($Apache::lonhomework::type eq 'exam') {
545: my $token=
546: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 547: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 548: $token=&Apache::lonxml::maketoken();
549: $Apache::lonhomework::history{"resource.0.outtoken"}=
550: $token;
551: }
552: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 553: }
1.284 albertel 554: if ($env{'form.markaccess'}) {
1.252 albertel 555: &Apache::lonnet::set_first_access('map');
556: }
1.159 albertel 557: #handle rand seed in construction space
558: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 559: my ($symb)=&Apache::lonxml::whichuser();
1.284 albertel 560: if ($env{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 561: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
562: $rndseed.'" />'.
563: '<input type="submit" name="resetdata"
1.211 albertel 564: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 565: '<input type="hidden" name="username"
1.284 albertel 566: value="'.$env{'form.username'}.'" />';
567: if ($env{'user.adv'}) {
1.267 albertel 568: $form_tag_start.=
569: ' <input type="checkbox" name="showallfoils" ';
1.284 albertel 570: if (defined($env{'form.showallfoils'})) {
1.267 albertel 571: $form_tag_start.='checked="on"';
572: }
573: $form_tag_start.= ' />'.&mt(' Show All Foils');
574: }
575: $form_tag_start.='<hr />';
1.162 albertel 576: }
1.159 albertel 577: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
578: push (@Apache::inputtags::status,$status);
579: my $expression='$external::datestatus="'.$status.'";';
580: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
581: &Apache::run::run($expression,$safeeval);
582: &Apache::lonxml::debug("Got $status");
583: if (( $status eq 'CLOSED' ) ||
584: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 585: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 586: ( $status eq 'BANNED') ||
1.216 albertel 587: ( $status eq 'UNAVAILABLE') ||
588: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 589: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
590: if ( $target eq "web" ) {
591: $result.= $head_tag_start.'</head>';
592: my $msg=$body_tag_start;
593: if ($status eq 'UNAVAILABLE') {
1.245 albertel 594: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 595: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 596: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 597: }
1.216 albertel 598: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 599: $msg.='The problem '.$accessmsg;
600: } elsif ($status eq 'UNCHECKEDOUT') {
601: $msg.=&checkout_msg;
1.252 albertel 602: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 603: $msg.=&firstaccess_msg($accessmsg,$symb);
1.159 albertel 604: }
605: $result.=$msg.'<br />';
606: } elsif ($target eq 'tex') {
607: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
608: if ($status eq 'UNAVAILABLE') {
1.211 albertel 609: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 610: } else {
1.211 albertel 611: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 612: }
613: }
614: } elsif ($target eq 'web') {
615: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 616: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 617: $body_tag_start \n $form_tag_start".
1.227 albertel 618: '<input type="hidden" name="submitted" value="yes" />';
619: # create a page header and exit
1.284 albertel 620: if ($env{'request.state'} eq "construct") {
621: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 622: }
623: # if we are viewing someone else preserve that info
1.284 albertel 624: if (defined $env{'form.grade_symb'}) {
1.227 albertel 625: foreach my $field ('symb','courseid','domain','username') {
626: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 627: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 628: }
629: }
630: } elsif ($target eq 'tex') {
1.192 sakharuk 631: my $startminipage = '';
1.284 albertel 632: if (not $env{'form.problem_split'}=~/yes/) {
1.192 sakharuk 633: $startminipage = '\begin{minipage}{\textwidth}';
1.178 sakharuk 634: }
1.159 albertel 635: my $id = $Apache::inputtags::part;
636: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 637: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.223 sakharuk 638: my @packages = split /,/,$packages;
639: my $allow_print_points = 0;
640: foreach my $partial_key (@packages) {
1.230 albertel 641: if ($partial_key=~m/^part_0$/) {
1.223 sakharuk 642: $allow_print_points=1;
1.159 albertel 643: }
644: }
1.276 albertel 645: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
646: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1.159 albertel 647: my $duedate = &Apache::lonnet::EXT("resource.$id.duedate");
648: $duedate = POSIX::strftime("%c",localtime($duedate));
649: my $temp_file;
1.284 albertel 650: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1.159 albertel 651: if (-e $filename) {
652: $temp_file = Apache::File->new($filename);
653: } else {
654: $temp_file = Apache::File->new('>>'.$filename);
655: }
656: my @due_file_content = <$temp_file>;
657: my $due_file_content = $due_file_content[$#due_file_content];
658: chomp $due_file_content;
1.257 sakharuk 659: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.159 albertel 660: if ($due_file_content ne $duedate) {
661: $temp_file = Apache::File->new('>'.$filename);
662: print $temp_file "$duedate\n";
1.284 albertel 663: if (not $env{'request.symb'} =~ m/\.page_/) {
1.159 albertel 664: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1.284 albertel 665: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent\textit{Due date: '.$duedate.'} \vskip 1 mm\noindent '.$startminipage.'\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1.159 albertel 666: } else {
1.284 albertel 667: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent \vskip 1 mm \noindent'.$startminipage.'\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1.159 albertel 668: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
669: }
1.104 sakharuk 670: } else {
1.159 albertel 671: $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
1.104 sakharuk 672: }
1.101 sakharuk 673: } else {
1.284 albertel 674: if (not $env{'request.symb'} =~ m/\.page_/) {
675: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent \vskip 1 mm\noindent'.$startminipage.'\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1.159 albertel 676: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
677: } else {
678: $result .= '\vskip 1mm \\\\\\\\';
679: }
680: }
1.99 sakharuk 681: }
1.159 albertel 682: } elsif ($target eq 'edit') {
683: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
684: &problem_edit_header();
1.226 albertel 685: $Apache::lonxml::warnings_error_header=
686: &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 687: my $temp=&Apache::edit::insertlist($target,$token);
688: $result.=$temp;
689: } elsif ($target eq 'modified') {
690: $result=$token->[4];
691: $result.=&Apache::edit::handle_insert();
692: } else {
693: # page_start returned a starting result, delete it if we don't need it
694: $result = '';
1.99 sakharuk 695: }
1.159 albertel 696: return $result;
1.9 albertel 697: }
698:
699: sub end_problem {
1.159 albertel 700: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
701: my $result='';
702: my $status=$Apache::inputtags::status['-1'];
703: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
704: $target eq 'tex') {
1.249 albertel 705: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 706: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 707: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
708: &Apache::inputtags::grade;
709: } else {
710: # move any submission data to .hidden
711: &Apache::inputtags::hidealldata($Apache::inputtags::part);
712: }
1.159 albertel 713: } elsif ( ($target eq 'web' || $target eq 'tex') &&
714: $Apache::inputtags::part eq '0' &&
1.252 albertel 715: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 716: # if part is zero, no <part>s existed, so we need show the current
717: # grading status
718: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
719: $result.= $gradestatus;
720: }
721: if (
1.284 albertel 722: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 723: ($target eq 'answer') || ($target eq 'tex')
724: ) {
1.227 albertel 725: if ($target ne 'tex' &&
1.284 albertel 726: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 727: $result.="</form>";
728: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
1.159 albertel 729: }
730: if ($target eq 'web') {
1.281 albertel 731: $result.=&Apache::lonxml::xmlend().'</html>';
1.159 albertel 732: } elsif ($target eq 'tex') {
1.178 sakharuk 733: my $endminipage = '';
1.284 albertel 734: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 735: $endminipage = '\end{minipage}';
736: }
1.284 albertel 737: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 738: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 739: $result=~s/<\/html>//;
1.159 albertel 740: } else {
1.262 sakharuk 741: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 742: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 743: $result .= $endminipage.'\end{document} ';
744: } else {
745: $result .= '';
746: }
1.159 albertel 747: }
748: }
749: }
750: if ($target eq 'grade') {
751: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
752: &finalize_storage();
753: }
1.284 albertel 754: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
755: && $env{'form.answer_output_mode'} ne 'tex') {
1.294 albertel 756: $result.=&Apache::lonxml::xmlend().'</html>';
757: # normally we get it from above, but in CSTR
1.172 albertel 758: # we always show answer mode too.
1.159 albertel 759: }
760: } elsif ($target eq 'meta') {
761: if ($Apache::inputtags::part eq '0') {
1.179 albertel 762: @Apache::inputtags::response=();
1.159 albertel 763: $result=&Apache::response::mandatory_part_meta;
764: }
1.215 albertel 765: $result.=&Apache::response::meta_part_order();
1.258 albertel 766: $result.=&Apache::response::meta_response_order();
1.159 albertel 767: } elsif ($target eq 'edit') {
768: &Apache::lonxml::debug("in end_problem with $target, edit");
769: $result = &problem_edit_footer();
770: }
1.155 albertel 771:
1.284 albertel 772: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 773: &Apache::inputtags::check_for_duplicate_ids();
774: }
1.204 albertel 775:
776: &reset_problem_globals('problem');
1.159 albertel 777:
778: return $result;
1.48 albertel 779: }
780:
1.108 albertel 781:
1.48 albertel 782: sub start_library {
1.159 albertel 783: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
784: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 785: if ($$tagstack[0] eq 'library') {
786: &init_problem_globals('library');
787: $Apache::lonhomework::type='problem';
788: }
1.159 albertel 789: if ($target eq 'edit') {
790: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
791: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
792: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
793: &problem_edit_header();
794: my $temp=&Apache::edit::insertlist($target,$token);
795: $result.=$temp;
796: } elsif ($target eq 'modified') {
797: $result=$token->[4];
798: $result.=&Apache::edit::handle_insert();
799: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 800: $env{'request.state'} eq "construct" ) {
1.159 albertel 801: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
802: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
803: my $name=&get_resource_name($parstack,$safeeval);
804: my $rndseed=&setup_rndseed($safeeval);
805: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 806: $body_tag_start \n $form_tag_start".
1.159 albertel 807: '<input type="hidden" name="submitted" value="yes" />';
808: $result.=&problem_web_to_edit_header($rndseed);
809: }
810: return $result;
1.48 albertel 811: }
812:
813: sub end_library {
1.159 albertel 814: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
815: my $result='';
816: if ($target eq 'edit') {
817: $result=&problem_edit_footer();
818: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 819: $env{'request.state'} eq "construct") {
1.280 albertel 820: $result.='</form>'.&Apache::loncommon::endbodytag().
821: &Apache::lonxml::xmlend();
1.159 albertel 822: }
1.204 albertel 823: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 824: return $result;
1.197 www 825: }
826:
827: sub start_definetag {
828: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
829:
830: my $result;
831:
832: my $name = $token->[2]->{'name'};
833: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
834: if ($name=~/^\//) {
835: $result=
836: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
837: } else {
838: $result=
839: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
840: }
841: $skip=~s/\</\<\;/gs;
842: $skip=~s/\>/\>\;/gs;
843: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
844: return $result;
845: }
846:
847: sub end_definetag {
848: return '';
1.1 albertel 849: }
850:
851: sub start_block {
1.201 albertel 852: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 853:
854: my $result;
1.1 albertel 855:
1.160 albertel 856: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 857: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 858: my $code = $token->[2]->{'condition'};
1.201 albertel 859: if (defined($code)) {
1.137 albertel 860: if (!$Apache::lonxml::default_homework_loaded) {
861: &Apache::lonxml::default_homework_load($safeeval);
862: }
1.131 albertel 863: $result = &Apache::run::run($code,$safeeval);
864: &Apache::lonxml::debug("block :$code: returned :$result:");
865: } else {
866: $result='1';
867: }
868: if ( ! $result ) {
1.201 albertel 869: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 870: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
871: }
872: $result='';
873: } elsif ($target eq 'edit') {
874: $result .=&Apache::edit::tag_start($target,$token);
875: $result .=&Apache::edit::text_arg('Test Condition:','condition',
876: $token,40);
877: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
878: } elsif ($target eq 'modified') {
879: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
880: $safeeval,'condition');
881: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 882: }
1.131 albertel 883: return $result;
1.1 albertel 884: }
885:
886: sub end_block {
1.167 www 887: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
888: my $result;
889: if ($target eq "edit") {
890: $result.= &Apache::edit::tag_end($target,$token,'');
891: }
892: return $result;
893: }
894:
895: sub start_languageblock {
1.201 albertel 896: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 897:
898: my $result;
899:
900: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
901: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 902: my $include = $token->[2]->{'include'};
903: my $exclude = $token->[2]->{'exclude'};
904: my %languages=&Apache::loncommon::display_languages();
905: $result='1';
906: if ($include) {
907: $result='';
908: foreach (split(/\,/,$include)) {
909: if ($languages{$_}) { $result='1'; }
910: }
911: }
912: if ($exclude) {
913: foreach (split(/\,/,$exclude)) {
914: if ($languages{$_}) { $result='0'; }
915: }
916: }
917: if ( ! $result ) {
918: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
919: $style);
920: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
921: }
922: $result='';
1.167 www 923: } elsif ($target eq 'edit') {
924: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 925: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 926: $token,40);
1.211 albertel 927: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 928: $token,40);
929: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
930: } elsif ($target eq 'modified') {
931: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 932: $safeeval,'include',
933: 'exclude');
1.167 www 934: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
935: }
936: return $result;
937: }
938:
939: sub end_languageblock {
1.170 www 940: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
941: my $result;
1.201 albertel 942: if ($target eq "edit") {
1.170 www 943: $result.= &Apache::edit::tag_end($target,$token,'');
944: }
945: return $result;
946: }
947:
948: sub start_instructorcomment {
1.201 albertel 949: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 950:
951: my $result;
952:
953: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
954: $target eq 'tex' || $target eq 'analyze') {
1.284 albertel 955: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
956: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 957: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
958: $parser,$style);
1.170 www 959: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
960: }
961: $result='';
962: } elsif ($target eq 'edit') {
963: $result .=&Apache::edit::tag_start($target,$token);
964: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
965: }
966: return $result;
967: }
968:
969: sub end_instructorcomment {
1.159 albertel 970: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 971: my $result;
972: if ($target eq "edit") {
973: $result.= &Apache::edit::tag_end($target,$token,'');
974: }
975: return $result;
1.4 tsai 976: }
977:
978: sub start_while {
1.159 albertel 979: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
980:
1.160 albertel 981: my $result;
1.161 albertel 982: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 983: $target eq 'tex' || $target eq 'analyze') {
984: my $code = $token->[2]->{'condition'};
1.4 tsai 985:
1.160 albertel 986: push( @Apache::structuretags::whileconds, $code);
987: if (!$Apache::lonxml::default_homework_loaded) {
988: &Apache::lonxml::default_homework_load($safeeval);
989: }
990: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 991: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 992: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 993: push( @Apache::structuretags::whileline, $token->[5]);
994: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 995: if ( $result ) {
996: &Apache::lonxml::newparser($parser,\$bodytext);
997: }
998: } elsif ($target eq 'edit') {
999: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1000: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1001: $token,40);
1002: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1003: } elsif ($target eq 'modified') {
1004: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1005: $safeeval,'condition');
1006: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1007: }
1.160 albertel 1008: return $result;
1.4 tsai 1009: }
1010:
1011: sub end_while {
1.159 albertel 1012: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1013: my $result;
1014:
1015: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1016: $target eq 'tex' || $target eq 'analyze') {
1017: my $code = pop(@Apache::structuretags::whileconds);
1018: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1019: my $line = pop(@Apache::structuretags::whileline);
1020: my $return = &Apache::run::run($code,$safeeval);
1021: my $starttime=time;
1022: my $error=0;
1023: while ($return) {
1024: if (time-$starttime >
1025: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1026: #$return = 0; $error=1; next;
1.161 albertel 1027: }
1028: $result.=&Apache::scripttag::xmlparse($bodytext);
1029: $return = &Apache::run::run($code,$safeeval);
1030: }
1031: if ($error) {
1.270 albertel 1032: &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 1033: }
1034: } elsif ($target eq "edit") {
1035: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1036: }
1.160 albertel 1037: return $result;
1.1 albertel 1038: }
1.6 tsai 1039:
1.160 albertel 1040: # <randomlist show="1">
1.6 tsai 1041: # <tag1>..</tag1>
1042: # <tag2>..</tag2>
1043: # <tag3>..</tag3>
1.160 albertel 1044: # ...
1.6 tsai 1045: # </randomlist>
1046: sub start_randomlist {
1.159 albertel 1047: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1048: my $result;
1049: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1050: $target eq 'tex' || $target eq 'analyze') {
1051: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1052: my $b_parser= HTML::TokeParser->new(\$body);
1053: my $b_tok;
1054: my @randomlist;
1055: my $list_item;
1056: while($b_tok = $b_parser->get_token() ) {
1057: if($b_tok->[0] eq 'S') { # start tag
1058: # get content of the tag until matching end tag
1059: # get all text upto the matching tag
1060: # and push the content into @randomlist
1061: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1062: $b_parser);
1063: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1064: push(@randomlist,$list_item);
1065: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1066: # $list_item</b>";
1067: }
1068: if($b_tok->[0] eq 'T') { # text
1069: # what to do with text in between tags?
1070: # print "<b>TEXT $b_tok->[1]</b><br />";
1071: }
1072: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1073: # print "<b>END-TAG $b_tok->[1]</b><br />";
1074: # }
1075: }
1076: my @idx_arr = (0 .. $#randomlist);
1077: &Apache::structuretags::shuffle(\@idx_arr);
1078: my $bodytext = '';
1079: my $show=$#randomlist;
1080: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1081: $showarg--;
1082: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1083: for(0 .. $show) {
1084: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1085: }
1086: &Apache::lonxml::newparser($parser,\$bodytext);
1087: } elsif ($target eq 'edit' ) {
1088: $result .=&Apache::edit::tag_start($target,$token);
1089: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1090: $token,5);
1091: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1092: } elsif ($target eq 'modified' ) {
1093: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1094: $safeeval,'show');
1095: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1096: }
1097: return $result;
1.7 tsai 1098: }
1099:
1100: sub shuffle {
1101: my $a=shift;
1102: my $i;
1.70 albertel 1103: if (defined(@$a)) {
1.251 albertel 1104: &Apache::response::pushrandomnumber();
1.159 albertel 1105: for($i=@$a;--$i;) {
1106: my $j=int(&Math::Random::random_uniform() * ($i+1));
1107: next if $i == $j;
1108: @$a[$i,$j] = @$a[$j,$i];
1109: }
1.251 albertel 1110: &Apache::response::poprandomnumber();
1.7 tsai 1111: }
1.6 tsai 1112: }
1113:
1114: sub end_randomlist {
1.159 albertel 1115: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1116: my $result;
1117: if ($target eq 'edit' ) {
1118: $result=&Apache::edit::tag_end($target,$token,
1119: 'End Randomly Parsed Block');
1120: }
1121: return $result;
1.6 tsai 1122: }
1123:
1.283 albertel 1124: sub ordered_show_check {
1125: my $last_part=$Apache::inputtags::partlist[-2];
1126: my $in_order=
1127: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1128: my $in_order_show=1;
1129: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1130: $in_order_show=&Apache::response::check_status($last_part);
1131: }
1132: return $in_order_show;
1133: }
1134:
1.11 albertel 1135: sub start_part {
1.159 albertel 1136: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1137: my $result='';
1138: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1139: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1140: $Apache::inputtags::part=$id;
1.177 albertel 1141: push(@Apache::inputtags::partlist,$id);
1142: @Apache::inputtags::response=();
1.159 albertel 1143: @Apache::inputtags::previous=();
1144: @Apache::inputtags::previous_version=();
1.241 albertel 1145: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1146: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1147: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1148: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1149: my $in_order_show=&ordered_show_check();
1.214 albertel 1150: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1151: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1152: &Apache::run::run($expression,$safeeval);
1.159 albertel 1153:
1154: if ($target eq 'meta') {
1.224 www 1155: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1156: return &Apache::response::mandatory_part_meta.
1157: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1158: } elsif ($target eq 'web' || $target eq 'grade' ||
1159: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1160: if ($hidden || !$in_order_show) {
1.159 albertel 1161: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1162: } else {
1163: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1164: push (@Apache::inputtags::status,$status);
1165: my $expression='$external::datestatus="'.$status.'";';
1166: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1167: &Apache::run::run($expression,$safeeval);
1.284 albertel 1168: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1169: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1170: }
1.216 albertel 1171: if (( $status eq 'CLOSED' ) ||
1172: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1173: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1174: ( $status eq 'BANNED') ||
1175: ( $status eq 'UNAVAILABLE') ||
1176: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 1177: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1178: if ( $target eq "web" ) {
1.211 albertel 1179: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1180: } elsif ( $target eq 'tex' ) {
1.284 albertel 1181: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1182: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1183: } else {
1.211 albertel 1184: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1185: }
1.159 albertel 1186: }
1187: } else {
1188: if ($target eq 'tex') {
1.284 albertel 1189: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1190: if ($$tagstack[-2] eq 'td') {
1191: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1192: } else {
1193: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1194: }
1.195 sakharuk 1195: }
1.159 albertel 1196: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1197: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1198: my @allkeys = split /,/,$allkeys;
1199: my $allow_print_points = 0;
1200: foreach my $partial_key (@allkeys) {
1.230 albertel 1201: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1202: if ($1 ne '0') {$allow_print_points=1;}
1203: }
1204: }
1.275 albertel 1205: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1206: if (defined($maxtries) && $maxtries < 0) {
1207: $allow_print_points=0;
1208: }
1.222 sakharuk 1209: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1210: } elsif ($target eq 'web') {
1211: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1212: }
1213: }
1214: }
1215: } elsif ($target eq 'edit') {
1216: $result.=&Apache::edit::tag_start($target,$token);
1217: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1218: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1219: ' '.
1220: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1221: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1222: } elsif ($target eq 'modified') {
1223: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1224: $safeeval,'id','display');
1.159 albertel 1225: if ($constructtag) {
1.225 albertel 1226: #limiting ids to only letters numbers, and space
1.224 www 1227: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1228: $result = &Apache::edit::rebuild_tag($token);
1229: $result.=&Apache::edit::handle_insert();
1230: }
1231: }
1232: return $result;
1.11 albertel 1233: }
1234:
1235: sub end_part {
1.159 albertel 1236: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1237: &Apache::lonxml::debug("in end_part $target ");
1238: my $status=$Apache::inputtags::status['-1'];
1239: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1240: my $in_order_show=&ordered_show_check();
1.159 albertel 1241: my $result='';
1242: if ( $target eq 'meta' ) {
1243: $result='';
1.249 albertel 1244: } elsif ($target eq 'grade') {
1245: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1246: !$hidden && $in_order_show) {
1.249 albertel 1247: $result=&Apache::inputtags::grade;
1248: } else {
1249: # move any submission data to .hidden
1250: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1251: }
1.283 albertel 1252: } elsif (($target eq 'web' || $target eq 'tex') &&
1253: !$hidden && $in_order_show) {
1.159 albertel 1254: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1255: $target);
1.212 albertel 1256: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1257: $gradestatus='';
1258: }
1.159 albertel 1259: $result=$gradestatus;
1.265 sakharuk 1260: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1261: } elsif ($target eq 'edit') {
1262: $result=&Apache::edit::end_table();
1.159 albertel 1263: }
1264: pop @Apache::inputtags::status;
1265: $Apache::inputtags::part='';
1.295 albertel 1266: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1267: return $result;
1.11 albertel 1268: }
1.1 albertel 1269:
1.25 albertel 1270: sub start_preduedate {
1.159 albertel 1271: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1272: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1.236 albertel 1273: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.159 albertel 1274: if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1275: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1276: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.159 albertel 1277: &Apache::lonxml::get_all_text("/preduedate",$parser);
1278: }
1.24 albertel 1279: }
1.159 albertel 1280: return '';
1.24 albertel 1281: }
1282:
1.25 albertel 1283: sub end_preduedate {
1.159 albertel 1284: return '';
1.24 albertel 1285: }
1286:
1.25 albertel 1287: sub start_postanswerdate {
1.159 albertel 1288: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.234 albertel 1289: if ($target eq 'web' || $target eq 'grade') {
1.159 albertel 1290: if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1291: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1292: }
1293: } elsif ($target eq 'tex') {
1.234 albertel 1294: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1.159 albertel 1295: }
1296: return '';
1.24 albertel 1297: }
1298:
1.25 albertel 1299: sub end_postanswerdate {
1.159 albertel 1300: return '';
1.24 albertel 1301: }
1302:
1.25 albertel 1303: sub start_notsolved {
1.159 albertel 1304: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1305: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1306: $target eq 'tex') {
1307: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1308: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1309: if ($gradestatus =~ /^correct/ &&
1310: &Apache::response::show_answer()) {
1.159 albertel 1311: &Apache::lonxml::debug("skipping");
1312: &Apache::lonxml::get_all_text("/notsolved",$parser);
1313: }
1.24 albertel 1314: }
1.159 albertel 1315: return '';
1.24 albertel 1316: }
1317:
1.25 albertel 1318: sub end_notsolved {
1.159 albertel 1319: return '';
1.24 albertel 1320: }
1321:
1322: sub start_solved {
1.159 albertel 1323: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1324: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1325: $target eq 'tex') {
1326: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1327: if ($gradestatus !~ /^correct/ ||
1328: !&Apache::response::show_answer()) {
1.159 albertel 1329: &Apache::lonxml::get_all_text("/solved",$parser);
1330: }
1.24 albertel 1331: }
1.159 albertel 1332: return '';
1.24 albertel 1333: }
1334:
1335: sub end_solved {
1.248 albertel 1336: return '';
1337: }
1338:
1339: sub start_problemtype {
1340: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1341: my $result;
1342: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1343: $target eq 'tex' || $target eq 'analyze') {
1344: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1345: if (!defined($mode)) { $mode='show'; }
1346: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1347: my $found=0;
1348: foreach my $type (split(',',$for)) {
1349: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1350: }
1351: if ($mode eq 'show' && !$found) {
1352: &Apache::lonxml::get_all_text("/problemtype",$parser);
1353: }
1354: if ($mode eq 'hide' && $found) {
1355: &Apache::lonxml::get_all_text("/problemtype",$parser);
1356: }
1357: } elsif ($target eq 'edit') {
1358: $result .=&Apache::edit::tag_start($target,$token);
1359: $result.=&Apache::edit::select_arg('Mode:','mode',
1360: [['show','Show'],
1361: ['hide','Hide']]
1362: ,$token);
1363: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1364: [ ['exam','Exam/Quiz Problem'],
1365: ['survey','Survey'],
1366: ['problem','Homework Problem'] ]
1367: ,$token);
1368: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1369: } elsif ($target eq 'modified') {
1370: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1371: $safeeval,'mode','for');
1372: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1373: }
1374: return $result;
1375: }
1376:
1377: sub end_problemtype {
1.159 albertel 1378: return '';
1.24 albertel 1379: }
1.34 albertel 1380:
1381: sub start_startouttext {
1.159 albertel 1382: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1383: my @result=(''.'');
1384: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1385: return (@result);
1.34 albertel 1386: }
1.159 albertel 1387:
1.34 albertel 1388: sub end_startouttext {
1.159 albertel 1389: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1390: my $result='';
1391: my $text='';
1392:
1393: if ($target eq 'edit') {
1394: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1.211 albertel 1395: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1396: <td>".&mt('Delete:').
1.159 albertel 1397: &Apache::edit::deletelist($target,$token)
1398: ."</td>
1.42 albertel 1399: <td>".
1.159 albertel 1400: &Apache::edit::insertlist($target,$token).
1401: &Apache::edit::end_row().
1402: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1403: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1404: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1405: }
1406: if ($target eq 'modified') {
1.219 albertel 1407: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1408: }
1409: if ($target eq 'tex') {
1410: $result .= '\noindent ';
1411: }
1412: return $result;
1.34 albertel 1413: }
1.159 albertel 1414:
1.34 albertel 1415: sub start_endouttext {
1.159 albertel 1416: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1417: my $result='';
1418: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1419: if ($target eq "modified") {
1420: $result='<endouttext />'.
1421: &Apache::edit::handle_insertafter('startouttext'); }
1422: return $result;
1.34 albertel 1423: }
1.159 albertel 1424:
1.34 albertel 1425: sub end_endouttext {
1.159 albertel 1426: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1427: my @result=('','');
1428: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1429: return (@result);
1.34 albertel 1430: }
1.159 albertel 1431:
1.45 albertel 1432: sub delete_startouttext {
1.159 albertel 1433: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1434: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1435: my $text=$$parser['-1']->get_text("/endouttext");
1436: my $ntoken=$$parser['-1']->get_token();
1437: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1438: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1439: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1440: # they did the last time round
1441: &Apache::lonxml::increasedepth($ntoken);
1442: &Apache::lonxml::decreasedepth($ntoken);
1443: return 1;
1.193 www 1444: }
1445:
1446: sub start_simpleeditbutton {
1447: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1448: my $result='';
1.284 albertel 1449: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1450: ($target eq 'web') &&
1.284 albertel 1451: (&Apache::lonnet::allowed('srm',$env{'request.course.id'}))) {
1452: my $url=$env{'request.noversionuri'};
1.193 www 1453: $url=~s/\?.*$//;
1.278 albertel 1454: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1455: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1456: '<a href="'.$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 1457: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1458: }
1459: return $result;
1460: }
1461:
1462: sub end_simpleeditbutton {
1463: return '';
1.45 albertel 1464: }
1.34 albertel 1465:
1.1 albertel 1466: 1;
1467: __END__
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