Annotation of loncom/homework/structuretags.pm, revision 1.334
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.334 ! albertel 4: # $Id: structuretags.pm,v 1.333 2006/02/10 23:44:53 albertel Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.133 sakharuk 30:
1.1 albertel 31: package Apache::structuretags;
32:
33: use strict;
34: use Apache::lonnet;
1.101 sakharuk 35: use Apache::File();
1.147 www 36: use Apache::lonmenu;
1.210 albertel 37: use Apache::lonlocal;
1.231 sakharuk 38: use Apache::lonxml;
1.267 albertel 39: use Time::HiRes qw( gettimeofday tv_interval );
1.78 harris41 40: BEGIN {
1.248 albertel 41: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));
1.10 albertel 42: }
43:
44: sub start_web {
1.326 albertel 45: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
46: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
1.200 albertel 47: if ($target eq 'web') {
48: return $bodytext;
1.159 albertel 49: }
50: return '';
1.10 albertel 51: }
52:
53: sub end_web {
1.44 ng 54: return '';
1.10 albertel 55: }
56:
57: sub start_tex {
1.326 albertel 58: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 59: my $result='';
1.326 albertel 60: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
1.200 albertel 61: if ($target eq 'tex') {
62: return $bodytext.' ';
1.159 albertel 63: }
1.198 sakharuk 64: return $result;;
1.10 albertel 65: }
66:
67: sub end_tex {
1.44 ng 68: return '';
1.9 albertel 69: }
70:
1.290 albertel 71: sub body_tag_start {
72: my ($target,$background,$bgcolor)=@_;
73: my $body_tag_start='<body onload="'.&Apache::lonmenu::loadevents().'" '.
74: 'onunload="'.&Apache::lonmenu::unloadevents().'" ';
75: if ($env{'browser.imagesuppress'} eq 'on') { $background=''; }
76: if ($background) {
1.306 albertel 77: &Apache::lonxml::extlink($background);
1.290 albertel 78: $body_tag_start.='background="'.$background.'" ';
79: } else {
80: if (($bgcolor) && ($env{'browser.blackwhite'} ne 'on')) {
81: $body_tag_start.='bgcolor="'.$bgcolor.'" ';
82: } else {
83: $body_tag_start.='bgcolor="#ffffff"';
84: }
85: }
86: if ($env{'browser.fontenhance'} eq 'on') {
87: $body_tag_start.=' style="font-size: x-large;" ';
88: }
89: $body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1);
1.297 albertel 90:
91: &Apache::lontexconvert::jsMath_reset();
1.290 albertel 92: if ($env{'environment.texengine'} eq 'jsMath') {
1.297 albertel 93: $body_tag_start.=&Apache::lontexconvert::jsMath_header();
1.290 albertel 94: }
95: return $body_tag_start;
96: }
1.291 albertel 97:
1.48 albertel 98: sub page_start {
1.159 albertel 99: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
100: my %found;
1.207 albertel 101: foreach my $taginside (@$tagstack) {
1.159 albertel 102: foreach my $taglookedfor ('html','body','form') {
103: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
104: }
105: }
106:
107: my $result;
108: my $head_tag_start;
109: if (!defined($found{'html'})) {
110: $result=&Apache::londefdef::start_html($target,$token,$tagstack,
111: $parstack,$parser,$safeeval);
1.254 www 112: $head_tag_start='<head>'.&Apache::lonmenu::registerurl(undef,$target).
1.261 www 113: &Apache::lonhtmlcommon::htmlareaheaders().
1.270 albertel 114: &Apache::lonhtmlcommon::spellheader().
115: &Apache::lonxml::fontsettings();
1.327 albertel 116: if ($target eq 'edit') {
117: $head_tag_start.=&Apache::edit::js_change_detection();
118: }
1.159 albertel 119: }
120: my $body_tag_start;
1.318 albertel 121: if (!defined($found{'body'}) && $env{'request.state'} eq 'construct') {
122: if ($env{'environment.remote'} eq 'off') {
123: if ($target eq 'web' || $target eq 'edit') {
124: $body_tag_start=&Apache::loncommon::bodytag();
125: $body_tag_start.=&Apache::lonxml::message_location();
126: }
127: } else {
128: if ($target eq 'web' || $target eq 'edit') {
129: $body_tag_start=&Apache::loncommon::bodytag(undef,undef,undef,1);
130: $body_tag_start.=&Apache::lonxml::message_location();
131: }
1.297 albertel 132: }
1.272 albertel 133: } elsif (!defined($found{'body'})) {
1.159 albertel 134: my $background=&Apache::lonxml::get_param('background',$parstack,
135: $safeeval);
1.290 albertel 136: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
137: $safeeval);
1.299 albertel 138: $body_tag_start=&body_tag_start($target,$background,$bgcolor);
1.291 albertel 139: if ( ($target eq 'web' || $target eq 'webgrade')
140: && $env{'request.state'} ne 'construct') {
1.165 albertel 141: my ($symb,undef,undef,undef,$publicuser)=
142: &Apache::lonxml::whichuser();
143: if ($symb eq '' && !$publicuser) {
1.159 albertel 144: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
1.211 albertel 145: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
1.159 albertel 146: $body_tag_start.=$help;
147: }
148: }
1.245 albertel 149: $body_tag_start.=&Apache::lonxml::message_location();
1.159 albertel 150: }
151: my $form_tag_start;
152: if (!defined($found{'form'})) {
1.281 albertel 153: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="POST" action="';
1.284 albertel 154: my $uri=$env{'request.uri'};
155: if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
1.327 albertel 156: $form_tag_start.=$uri.'" ';
157: if ($target eq 'edit') {
158: $form_tag_start.=&Apache::edit::form_change_detection();
159: }
160: $form_tag_start.='>';
1.159 albertel 161: }
162: return ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.105 albertel 163: }
164:
1.141 matthew 165: #use Time::HiRes();
1.105 albertel 166: sub get_resource_name {
1.159 albertel 167: my ($parstack,$safeeval)=@_;
1.204 albertel 168: if (defined($Apache::lonhomework::name)) {
169: return $Apache::lonhomework::name;
170: }
1.279 albertel 171: my ($symb)=&Apache::lonxml::whichuser();
172: my $name=&Apache::lonnet::gettitle($symb);
1.159 albertel 173: if ($name eq '') {
174: $name=&Apache::lonnet::EXT('resource.title');
175: if ($name eq 'con_lost') { $name = ''; }
176: }
1.204 albertel 177: if ($name!~/\S+/) {
1.284 albertel 178: $name=$env{'request.uri'};
1.205 albertel 179: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 180: }
1.159 albertel 181: $Apache::lonhomework::name=$name;
182: return $name;
1.105 albertel 183: }
184:
185: sub setup_rndseed {
1.159 albertel 186: my ($safeeval)=@_;
187: my $rndseed;
1.162 albertel 188: my ($symb)=&Apache::lonxml::whichuser();
1.333 albertel 189: if ($env{'request.state'} eq "construct"
190: || $symb eq ''
191: || $Apache::lonhomework::type eq 'practice'
192: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 193: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 194: ['rndseed']);
1.284 albertel 195: $rndseed=$env{'form.rndseed'};
1.159 albertel 196: if (!$rndseed) {
1.162 albertel 197: $rndseed=$Apache::lonhomework::history{'rndseed'};
198: if (!$rndseed) {
199: $rndseed=time;
200: }
1.284 albertel 201: $env{'form.rndseed'}=$rndseed;
1.162 albertel 202: }
1.284 albertel 203: if ($env{'form.resetdata'} eq &mt('New Problem Variation') ||
204: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 205: srand(time);
206: $rndseed=int(rand(2100000000));
1.284 albertel 207: $env{'form.rndseed'}=$rndseed;
208: delete($env{'form.resetdata'});
209: delete($env{'form.newrandomization'});
1.159 albertel 210: }
1.187 albertel 211: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 212: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 213: }
1.247 albertel 214: if ($Apache::lonhomework::history{'resource.CODE'}) {
215: $rndseed=&Apache::lonnet::rndseed();
216: }
1.221 albertel 217: if ($safeeval) {
218: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 219: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 220: }
1.159 albertel 221: }
222: return $rndseed;
1.105 albertel 223: }
224:
1.268 albertel 225: sub remember_problem_state {
226: return '
1.284 albertel 227: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
228: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
229: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 230: }
231:
1.105 albertel 232: sub problem_edit_header {
1.268 albertel 233: return '<input type="hidden" name="submitted" value="edit" />'.
234: &Apache::structuretags::remember_problem_state().'
1.210 albertel 235: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 236: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
1.328 albertel 237: <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 238: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
239: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
240: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.260 albertel 241: &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
242: .'</td></tr></table>'.
1.282 albertel 243: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 244: }
245:
246: sub problem_edit_footer {
1.210 albertel 247: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 248: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
249: &Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).
1.280 albertel 250: "\n</form>\n".&Apache::loncommon::endbodytag()."\n</html>";
1.105 albertel 251: }
252:
1.235 albertel 253: sub option {
254: my ($value,$name) = @_;
255: my $result ="<option value='".$value."' ";
1.284 albertel 256: if ($env{'form.'.$name} eq $value) {
1.235 albertel 257: $result.=" selected='on' ";
258: }
259: $result.='>';
260: return $result;
261: }
262:
1.105 albertel 263: sub problem_web_to_edit_header {
1.159 albertel 264: my ($rndseed)=@_;
1.313 albertel 265: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
266: if (!$Apache::lonhomework::parsing_a_task) {
267: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
268: }
269: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 270: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
271: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 272: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 273: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 274: $rndseed.'"
1.270 albertel 275: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.281 albertel 276: <label><input type="checkbox" name="showallfoils" ';
1.315 albertel 277: my $show_all_foils_text =
278: ($Apache::lonhomework::parsing_a_task) ?
279: &mt(' Show All Instances')
280: : &mt(' Show All Foils');
281:
1.284 albertel 282: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.315 albertel 283: $result.= ' />'.$show_all_foils_text.
1.228 www 284: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.281 albertel 285: '</label><hr />';
1.313 albertel 286: if (!$Apache::lonhomework::parsing_a_task) {
287: $result.="
1.235 albertel 288: <nobr>
289: Problem Status:
290: <select name='problemstate'>
1.270 albertel 291: <option value=''></option>
1.235 albertel 292: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
293: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
294: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
295: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
296: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
297: </select>
298: </nobr>
299: <nobr>
300: Problem Type:
301: <select name='problemtype'>
1.270 albertel 302: <option value=''></option>
1.242 albertel 303: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
304: ".&option('problem','problemtype').&mt("Homework problem")."</option>
305: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 306: </select>
307: </nobr>
308: <nobr>
309: Feedback Mode:
310: <select name='problemstatus'>
311: <option value=''></option>
1.242 albertel 312: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
313: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 314: </select>
315: </nobr>
1.242 albertel 316: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 317: <hr />";
1.313 albertel 318: my $numtoanalyze=$env{'form.numtoanalyze'};
319: if (!$numtoanalyze) { $numtoanalyze=20; }
320: $result.= '<input type="submit" name="problemmode" value='.
321: &mt('"Calculate answers').'" /> for
1.136 albertel 322: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 323: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
324: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 325: '',undef,undef,300).
1.210 albertel 326: '<hr />';
1.313 albertel 327: }
1.159 albertel 328: return $result;
1.48 albertel 329: }
330:
1.65 albertel 331: sub initialize_storage {
1.159 albertel 332: %Apache::lonhomework::results=();
1.162 albertel 333: %Apache::lonhomework::history=();
1.159 albertel 334: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.333 albertel 335: if ($env{'request.state'} eq 'construct'
336: || $symb eq ''
337: || $Apache::lonhomework::type eq 'practice') {
338:
339: my $namespace = $symb || $env{'request.uri'};
340: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
341: $env{'form.resetdata'} eq &mt('New Problem Variation') ||
342: $env{'form.newrandomization'} eq &mt('New Randomization')) {
343: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
344: &Apache::lonxml::debug("Attempt reset");
345: }
1.159 albertel 346: %Apache::lonhomework::history=
1.333 albertel 347: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 348: my ($temp)=keys %Apache::lonhomework::history ;
349: &Apache::lonxml::debug("Return message of $temp");
350: } else {
351: %Apache::lonhomework::history=
352: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
353: }
354: #ignore error conditions
1.67 albertel 355: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 356: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 357: }
358:
359: # -------------------------------------------------------------finalize_storage
360: # Stores away the result has to a student's environment
361: # checks form.grade_ for specific values, other wises stores
362: # to the running users environment
1.285 raeburn 363: # Will increment totals for attempts, students, and corrects
364: # if running user has student role.
1.65 albertel 365: sub finalize_storage {
1.159 albertel 366: my $result;
1.289 albertel 367: if (%Apache::lonhomework::results) {
1.323 albertel 368: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
369: delete(@Apache::lonhomework::results{@remove});
1.159 albertel 370: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.333 albertel 371: if ($env{'request.state'} eq 'construct'
372: || $symb eq ''
373: || $Apache::lonhomework::type eq 'practice') {
374: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 375: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 376: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 377: $namespace,'',$domain,$name);
1.159 albertel 378: &Apache::lonxml::debug('Construct Store return message:'.$result);
379: } else {
380: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
381: $symb,$courseid,$domain,$name);
382: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 383: if ($env{'request.role'} =~/^st/) {
384: &store_aggregates($symb,$courseid);
385: }
1.159 albertel 386: }
1.323 albertel 387: } else {
388: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 389: }
1.159 albertel 390: return $result;
1.65 albertel 391: }
1.289 albertel 392: use Data::Dumper;
1.65 albertel 393:
1.285 raeburn 394: # -------------------------------------------------------------store_aggregates
395: # Sends hash of values to be incremented in nohist_resourcetracker.db
396: # for the course. Increments total number of attempts, unique students
397: # and corrects for each part for an instance of a problem, as appropriate.
398: sub store_aggregates {
399: my ($symb,$courseid) = @_;
1.286 albertel 400: my %aggregate;
401: my @parts;
1.288 albertel 402: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
403: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 404: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 405: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 406: push(@parts, $1);
1.285 raeburn 407: }
408: }
1.286 albertel 409: foreach my $part (@parts) {
410: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
411: eq 'APPROX_ANS' ||
412: $Apache::lonhomework::results{'resource.'.$part.'.award'}
413: eq 'EXACT_ANS') {
1.287 albertel 414: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 415: }
1.286 albertel 416: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 417: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 418: } else {
1.293 albertel 419: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 420: if ($last_reset) {
1.293 albertel 421: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 422: $aggregate{$symb."\0".$part."\0users"} = 1;
423: }
424: }
1.285 raeburn 425: }
1.287 albertel 426: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 427: }
1.292 raeburn 428: if (keys (%aggregate) > 0) {
1.289 albertel 429: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 430: $cdomain,$cname);
431: }
432: }
1.289 albertel 433:
1.65 albertel 434: sub checkout_msg {
1.211 albertel 435: my %lt=&Apache::lonlocal::texthash(
436: 'resource'=>'The resource needs to be checked out',
437: 'id_expln'=>'As a resource gets checked out, a unique timestamped ID is given to it, and a permanent record is left in the system.',
438: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
439: 'checkout'=>'Check out Exam for Viewing',
440: 'checkout?'=>'Check out Exam?');
1.159 albertel 441: return (<<ENDCHECKOUT);
1.211 albertel 442: <h2>$lt{'resource'}</h2>
443: <p>$lt{'id_expln'}</p>
444: <font color="red">
445: <p>$lt{'warning'}</p>
1.91 albertel 446: </font>
1.284 albertel 447: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.91 albertel 448: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 449: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 450: </form>
451: ENDCHECKOUT
452: }
453:
1.252 albertel 454: sub firstaccess_msg {
1.253 albertel 455: my ($time,$symb)=@_;
456: my ($map)=&Apache::lonnet::decode_symb($symb);
457: my $foldertitle=&Apache::lonnet::gettitle($map);
458: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.252 albertel 459: return (<<ENDCHECKOUT);
1.253 albertel 460: <h2>The resources in "$foldertitle" are open for a limited time. Once you click the 'Show Resource' button below you have $time to complete all resources "$foldertitle".</h2>
1.284 albertel 461: <form name="markaccess" method="POST" action="$env{'request.uri'}">
1.252 albertel 462: <input type="hidden" name="markaccess" value="yes" />
463: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
464: </form>
465: ENDCHECKOUT
466: }
467:
1.204 albertel 468: sub init_problem_globals {
469: my ($type)=@_;
470: #initialize globals
1.308 foxr 471: # For problems, we start out in part 0 (outside a <part> tag).
472: # and part 0 is used to describe the main body of the <problem>
473: #
1.204 albertel 474: if ($type eq 'problem') {
475: $Apache::inputtags::part='0';
476: @Apache::inputtags::partlist=('0');
1.266 albertel 477: $Apache::lonhomework::problemstatus=&get_problem_status('0');
478: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 479:
1.266 albertel 480: } elsif ($type eq 'library') {
1.204 albertel 481: $Apache::inputtags::part='';
482: @Apache::inputtags::partlist=();
483: $Apache::lonhomework::problemstatus='';
1.266 albertel 484: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 485:
1.304 albertel 486: } elsif ($type eq 'Task') {
487: $Apache::inputtags::part='0';
488: @Apache::inputtags::partlist=('0');
489: $Apache::lonhomework::problemstatus='';
490: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 491: }
492: @Apache::inputtags::responselist = ();
493: @Apache::inputtags::importlist = ();
494: @Apache::inputtags::previous=();
495: @Apache::inputtags::previous_version=();
496: $Apache::structuretags::printanswer='No';
497: @Apache::structuretags::whileconds=();
498: @Apache::structuretags::whilebody=();
499: @Apache::structuretags::whileline=();
500: $Apache::lonhomework::scantronmode=0;
501: undef($Apache::lonhomework::name);
502:
503: }
504:
505: sub reset_problem_globals {
506: my ($type)=@_;
507: undef(%Apache::lonhomework::history);
508: undef(%Apache::lonhomework::results);
509: undef($Apache::inputtags::part);
1.208 albertel 510: #don't undef this, lonhomework.pm takes care of this, we use this to
511: #detect if we try to do 2 problems in one file
512: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 513: undef($Apache::lonhomework::name);
514: }
515:
1.241 albertel 516: sub set_problem_state {
1.240 albertel 517: my ($part)=@_;
1.284 albertel 518: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 519: $Apache::lonhomework::history{"resource.$part.solved"}=
520: 'correct_by_student';
521: }
522: }
523:
1.241 albertel 524: sub get_problem_status {
525: my ($part)=@_;
1.267 albertel 526: my $problem_status;
1.284 albertel 527: if ($env{'request.state'} eq 'construct' &&
528: defined($env{'form.problemstatus'})) {
529: $problem_status=$env{'form.problemstatus'};
1.267 albertel 530: } else {
531: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
532: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 533: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 534: }
535: return $problem_status;
536: }
537:
1.9 albertel 538: sub start_problem {
1.326 albertel 539: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 540:
1.311 foxr 541: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 542: if (!$Apache::lonxml::metamode) {
543: &Apache::lonxml::startredirection();
544: }
1.311 foxr 545:
1.308 foxr 546: # Problems don't nest and we don't allow more than one <problem> in
547: # a .problem file.
548: #
1.184 albertel 549: if ( $Apache::inputtags::part ne '' ||
550: $Apache::lonhomework::parsing_a_problem) {
551: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 552: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 553: return '';
554: }
1.184 albertel 555:
556: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 557: &init_problem_globals('problem');
1.166 albertel 558:
1.284 albertel 559: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 560: $Apache::lonhomework::scantronmode=1;
561: }
1.161 albertel 562:
1.246 albertel 563: &initialize_storage();
1.159 albertel 564: if ($target ne 'analyze') {
565: if ($target eq 'web') {
566: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 567: }
1.284 albertel 568: if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 569: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 570: if (($env{'request.state'} eq 'construct') &&
571: defined($env{'form.problemtype'})) {
572: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 573: }
1.332 albertel 574: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 575: }
1.164 albertel 576: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 577: my $uri=$env{'request.uri'};
1.159 albertel 578: if ($uri=~/\.(\w+)$/) {
579: $Apache::lonhomework::type=$1;
580: &Apache::lonxml::debug("Using type of $1");
581: } else {
582: $Apache::lonhomework::type='problem';
583: &Apache::lonxml::debug("Using default type, problem, :$uri:");
584: }
1.87 albertel 585: }
1.301 albertel 586: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 587:
1.159 albertel 588: #added vars to the scripting enviroment
1.213 albertel 589: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 590: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 591: &Apache::run::run($expression,$safeeval);
1.159 albertel 592: my $status;
593: my $accessmsg;
594:
595: #should get back a <html> or the neccesary stuff to start XML/MathML
596: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
597: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.284 albertel 598: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 599:
600: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
601: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
602: $target eq 'tex') {
603: #handle exam checkout
604: if ($Apache::lonhomework::type eq 'exam') {
605: my $token=
606: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 607: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 608: $token=&Apache::lonxml::maketoken();
609: $Apache::lonhomework::history{"resource.0.outtoken"}=
610: $token;
611: }
612: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 613: }
1.284 albertel 614: if ($env{'form.markaccess'}) {
1.252 albertel 615: &Apache::lonnet::set_first_access('map');
616: }
1.159 albertel 617: #handle rand seed in construction space
618: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 619: my ($symb)=&Apache::lonxml::whichuser();
1.333 albertel 620: if ($env{'request.state'} ne "construct" &&
621: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 622: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
623: $rndseed.'" />'.
624: '<input type="submit" name="resetdata"
1.334 ! albertel 625: value="'.&mt('New Problem Variation').'" />';
! 626: if (exists($env{'form.username'})) {
! 627: $form_tag_start.=
1.164 albertel 628: '<input type="hidden" name="username"
1.284 albertel 629: value="'.$env{'form.username'}.'" />';
1.334 ! albertel 630: }
1.333 albertel 631: if ($env{'request.role.adv'}) {
1.267 albertel 632: $form_tag_start.=
1.300 albertel 633: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 634: if (defined($env{'form.showallfoils'})) {
1.267 albertel 635: $form_tag_start.='checked="on"';
636: }
1.300 albertel 637: $form_tag_start.= ' />'.&mt(' Show All Foils').
638: '</label>';
1.267 albertel 639: }
640: $form_tag_start.='<hr />';
1.162 albertel 641: }
1.324 albertel 642:
643: ($status,$accessmsg,my $slot_name,my $slot) =
644: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 645: push (@Apache::inputtags::status,$status);
1.324 albertel 646:
1.159 albertel 647: my $expression='$external::datestatus="'.$status.'";';
648: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
649: &Apache::run::run($expression,$safeeval);
650: &Apache::lonxml::debug("Got $status");
1.324 albertel 651:
1.159 albertel 652: if (( $status eq 'CLOSED' ) ||
653: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 654: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 655: ( $status eq 'BANNED') ||
1.216 albertel 656: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 657: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 658: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 659: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
660: $style);
1.159 albertel 661: if ( $target eq "web" ) {
662: $result.= $head_tag_start.'</head>';
663: my $msg=$body_tag_start;
664: if ($status eq 'UNAVAILABLE') {
1.245 albertel 665: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 666: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 667: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 668: }
1.216 albertel 669: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 670: $msg.='The problem '.$accessmsg;
671: } elsif ($status eq 'UNCHECKEDOUT') {
672: $msg.=&checkout_msg;
1.252 albertel 673: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 674: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 675: } elsif ($status eq 'NOT_IN_A_SLOT') {
676: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 677: }
678: $result.=$msg.'<br />';
679: } elsif ($target eq 'tex') {
1.332 albertel 680: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
681: : '\begin{minipage}{\textwidth}';
682: $result.='\begin{document}\noindent \vskip 1 mm '.
683: $startminipage.'\vskip 0 mm';
1.159 albertel 684: if ($status eq 'UNAVAILABLE') {
1.211 albertel 685: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 686: } else {
1.211 albertel 687: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 688: }
689: }
1.324 albertel 690: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 691: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
692: $style);
1.324 albertel 693: if ($target eq 'web') {
694: $result .= $head_tag_start.'</head>';
695: $result .= $body_tag_start;
696: $result .= &Apache::bridgetask::proctor_validation_screen();
697: } elsif ($target eq 'grade') {
698: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
699: 'problem');
700: }
1.159 albertel 701: } elsif ($target eq 'web') {
702: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 703: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 704: $body_tag_start \n $form_tag_start".
1.227 albertel 705: '<input type="hidden" name="submitted" value="yes" />';
706: # create a page header and exit
1.284 albertel 707: if ($env{'request.state'} eq "construct") {
708: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 709: }
710: # if we are viewing someone else preserve that info
1.284 albertel 711: if (defined $env{'form.grade_symb'}) {
1.227 albertel 712: foreach my $field ('symb','courseid','domain','username') {
713: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 714: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 715: }
716: }
717: } elsif ($target eq 'tex') {
1.319 foxr 718: $result .= 'INSERTTEXFRONTMATTERHERE';
719:
1.99 sakharuk 720: }
1.159 albertel 721: } elsif ($target eq 'edit') {
722: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
723: &problem_edit_header();
1.226 albertel 724: $Apache::lonxml::warnings_error_header=
725: &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 726: my $temp=&Apache::edit::insertlist($target,$token);
727: $result.=$temp;
728: } elsif ($target eq 'modified') {
729: $result=$token->[4];
730: $result.=&Apache::edit::handle_insert();
731: } else {
732: # page_start returned a starting result, delete it if we don't need it
733: $result = '';
1.99 sakharuk 734: }
1.159 albertel 735: return $result;
1.9 albertel 736: }
737:
738: sub end_problem {
1.159 albertel 739: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 740: my $result;
1.310 foxr 741:
1.321 albertel 742: if (!$Apache::lonxml::metamode) {
743: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 744: $Apache::lonxml::post_evaluate=0;
1.321 albertel 745: }
1.319 foxr 746:
747: if ($target eq 'tex') {
1.321 albertel 748:
749: # Figure out the front matter and replace the
750: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
751: # this in end_problem because whether or not we display due
752: # dates depends on whether due dates have already been
753: # displayed in the problem parts.
754:
1.319 foxr 755: my $frontmatter = '';
756: my $startminipage = '';
757: if (not $env{'form.problem_split'}=~/yes/) {
758: $startminipage = '\begin{minipage}{\textwidth}';
759: }
760: my $id = $Apache::inputtags::part;
761: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
762: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
763: my @packages = split /,/,$packages;
764: my $allow_print_points = 0;
765: foreach my $partial_key (@packages) {
766: if ($partial_key=~m/^part_0$/) {
767: $allow_print_points=1;
768: }
769: }
770: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
771: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
772: if (lc($env{'course.'.$env{'request.course.id'}.
773: '.disableexampointprint'}) eq 'yes') {
774: $allow_print_points=0;
775: }
776: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
777: 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 ';
778: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
779: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
780:
781: # Figure out what the due date is and if we need to print
782: # it in the problem header. We have been logging the
783: # last due date written to file.
784:
785: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
786: my $duedate = POSIX::strftime("%c",localtime($duetime));
787: my $temp_file;
788: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
789:
790: # Figure out what the last printed due date is or set it
791: # to the epoch if no duedates have been printed.
792:
793: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
794: if (-e $filename) {
795: $temp_file = Apache::File->new($filename);
796: my @due_file = <$temp_file>;
797: $due_file_content = $due_file[$#due_file];
798: chomp $due_file_content;
799: }
800:
801: # We display the due date iff it is not the same as the last
802: # duedate in problem header ($due_file_content), and
803: # none of our parts displayed a duedate.
804: #
805: my $parts_with_displayduedate;
806: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
807: $parts_with_displayduedate =
808: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
809: } else {
810: $parts_with_displayduedate = 0;
811: }
812: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
813: $temp_file = Apache::File->new('>'.$filename);
814: print $temp_file "$duetime\n";
815: if (not $env{'request.symb'} =~ m/\.page_/) {
816: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
817: $frontmatter .= $begin_doc.
818: '\textit{Due date: '.$duedate.'} '.$toc_line;
819: } else {
820: $frontmatter.= $begin_doc.$toc_line;
821: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
822: }
823: } else {
824: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
825: }
826: } else {
827: if (not $env{'request.symb'} =~ m/\.page_/) {
828: $frontmatter .= $begin_doc.$toc_line;
829: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
830: } else {
831: $frontmatter .= '\vskip 1mm \\\\\\\\';
832: }
833: }
834: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
835: }
836:
1.159 albertel 837: my $status=$Apache::inputtags::status['-1'];
838: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
839: $target eq 'tex') {
1.249 albertel 840: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 841: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 842: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
843: &Apache::inputtags::grade;
1.324 albertel 844: } elsif ($status eq 'NEEDS_CHECKIN') {
845: # no need to grade, and don't want to hide data
1.249 albertel 846: } else {
847: # move any submission data to .hidden
848: &Apache::inputtags::hidealldata($Apache::inputtags::part);
849: }
1.159 albertel 850: } elsif ( ($target eq 'web' || $target eq 'tex') &&
851: $Apache::inputtags::part eq '0' &&
1.252 albertel 852: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 853: # if part is zero, no <part>s existed, so we need show the current
854: # grading status
855: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
856: $result.= $gradestatus;
857: }
858: if (
1.284 albertel 859: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 860: ($target eq 'answer') || ($target eq 'tex')
861: ) {
1.227 albertel 862: if ($target ne 'tex' &&
1.284 albertel 863: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 864: $result.="</form>";
865: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
1.159 albertel 866: }
867: if ($target eq 'web') {
1.281 albertel 868: $result.=&Apache::lonxml::xmlend().'</html>';
1.159 albertel 869: } elsif ($target eq 'tex') {
1.178 sakharuk 870: my $endminipage = '';
1.284 albertel 871: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 872: $endminipage = '\end{minipage}';
873: }
1.284 albertel 874: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 875: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 876: $result=~s/<\/html>//;
1.159 albertel 877: } else {
1.262 sakharuk 878: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 879: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 880: $result .= $endminipage.'\end{document} ';
881: } else {
882: $result .= '';
883: }
1.159 albertel 884: }
885: }
886: }
887: if ($target eq 'grade') {
888: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
889: &finalize_storage();
890: }
1.284 albertel 891: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
892: && $env{'form.answer_output_mode'} ne 'tex') {
1.294 albertel 893: $result.=&Apache::lonxml::xmlend().'</html>';
894: # normally we get it from above, but in CSTR
1.172 albertel 895: # we always show answer mode too.
1.159 albertel 896: }
897: } elsif ($target eq 'meta') {
898: if ($Apache::inputtags::part eq '0') {
1.179 albertel 899: @Apache::inputtags::response=();
1.159 albertel 900: $result=&Apache::response::mandatory_part_meta;
901: }
1.215 albertel 902: $result.=&Apache::response::meta_part_order();
1.258 albertel 903: $result.=&Apache::response::meta_response_order();
1.159 albertel 904: } elsif ($target eq 'edit') {
905: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 906: $result .= &problem_edit_footer();
1.320 albertel 907: } elsif ($target eq 'modified') {
908: $result .= $token->[2];
909: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 910: }
1.155 albertel 911:
1.284 albertel 912: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 913: &Apache::inputtags::check_for_duplicate_ids();
914: }
1.204 albertel 915:
916: &reset_problem_globals('problem');
1.159 albertel 917:
918: return $result;
1.48 albertel 919: }
920:
1.108 albertel 921:
1.48 albertel 922: sub start_library {
1.159 albertel 923: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
924: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 925: if ($$tagstack[0] eq 'library') {
926: &init_problem_globals('library');
927: $Apache::lonhomework::type='problem';
928: }
1.159 albertel 929: if ($target eq 'edit') {
930: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
931: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
932: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
933: &problem_edit_header();
934: my $temp=&Apache::edit::insertlist($target,$token);
935: $result.=$temp;
936: } elsif ($target eq 'modified') {
937: $result=$token->[4];
938: $result.=&Apache::edit::handle_insert();
939: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 940: $env{'request.state'} eq "construct" ) {
1.159 albertel 941: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
942: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
943: my $name=&get_resource_name($parstack,$safeeval);
944: my $rndseed=&setup_rndseed($safeeval);
945: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 946: $body_tag_start \n $form_tag_start".
1.159 albertel 947: '<input type="hidden" name="submitted" value="yes" />';
948: $result.=&problem_web_to_edit_header($rndseed);
949: }
950: return $result;
1.48 albertel 951: }
952:
953: sub end_library {
1.159 albertel 954: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
955: my $result='';
956: if ($target eq 'edit') {
957: $result=&problem_edit_footer();
958: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
1.284 albertel 959: $env{'request.state'} eq "construct") {
1.280 albertel 960: $result.='</form>'.&Apache::loncommon::endbodytag().
961: &Apache::lonxml::xmlend();
1.159 albertel 962: }
1.204 albertel 963: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 964: return $result;
1.197 www 965: }
966:
967: sub start_definetag {
1.326 albertel 968: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 969:
970: my $result;
971:
972: my $name = $token->[2]->{'name'};
1.326 albertel 973: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.197 www 974: if ($name=~/^\//) {
975: $result=
976: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
977: } else {
978: $result=
979: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
980: }
981: $skip=~s/\</\<\;/gs;
982: $skip=~s/\>/\>\;/gs;
983: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
984: return $result;
985: }
986:
987: sub end_definetag {
988: return '';
1.1 albertel 989: }
990:
991: sub start_block {
1.201 albertel 992: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 993:
994: my $result;
1.1 albertel 995:
1.160 albertel 996: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 997: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 998: my $code = $token->[2]->{'condition'};
1.201 albertel 999: if (defined($code)) {
1.137 albertel 1000: if (!$Apache::lonxml::default_homework_loaded) {
1001: &Apache::lonxml::default_homework_load($safeeval);
1002: }
1.131 albertel 1003: $result = &Apache::run::run($code,$safeeval);
1004: &Apache::lonxml::debug("block :$code: returned :$result:");
1005: } else {
1006: $result='1';
1007: }
1008: if ( ! $result ) {
1.201 albertel 1009: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1010: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1011: }
1012: $result='';
1013: } elsif ($target eq 'edit') {
1014: $result .=&Apache::edit::tag_start($target,$token);
1015: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1016: $token,40);
1017: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1018: } elsif ($target eq 'modified') {
1019: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1020: $safeeval,'condition');
1021: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1022: }
1.131 albertel 1023: return $result;
1.1 albertel 1024: }
1025:
1026: sub end_block {
1.167 www 1027: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1028: my $result;
1029: if ($target eq "edit") {
1030: $result.= &Apache::edit::tag_end($target,$token,'');
1031: }
1032: return $result;
1033: }
1034:
1035: sub start_languageblock {
1.201 albertel 1036: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1037:
1038: my $result;
1039:
1040: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1041: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 1042: my $include = $token->[2]->{'include'};
1043: my $exclude = $token->[2]->{'exclude'};
1044: my %languages=&Apache::loncommon::display_languages();
1045: $result='1';
1046: if ($include) {
1047: $result='';
1048: foreach (split(/\,/,$include)) {
1049: if ($languages{$_}) { $result='1'; }
1050: }
1051: }
1052: if ($exclude) {
1053: foreach (split(/\,/,$exclude)) {
1054: if ($languages{$_}) { $result='0'; }
1055: }
1056: }
1057: if ( ! $result ) {
1058: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1059: $style);
1060: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1061: }
1062: $result='';
1.167 www 1063: } elsif ($target eq 'edit') {
1064: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1065: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1066: $token,40);
1.211 albertel 1067: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1068: $token,40);
1069: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1070: } elsif ($target eq 'modified') {
1071: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1072: $safeeval,'include',
1073: 'exclude');
1.167 www 1074: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1075: }
1076: return $result;
1077: }
1078:
1079: sub end_languageblock {
1.170 www 1080: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1081: my $result;
1.201 albertel 1082: if ($target eq "edit") {
1.170 www 1083: $result.= &Apache::edit::tag_end($target,$token,'');
1084: }
1085: return $result;
1086: }
1087:
1088: sub start_instructorcomment {
1.201 albertel 1089: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1090:
1091: my $result;
1092:
1093: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1094: $target eq 'tex' || $target eq 'analyze') {
1.284 albertel 1095: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1096: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1097: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1098: $parser,$style);
1.170 www 1099: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1100: }
1101: $result='';
1102: } elsif ($target eq 'edit') {
1103: $result .=&Apache::edit::tag_start($target,$token);
1104: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1105: }
1106: return $result;
1107: }
1108:
1109: sub end_instructorcomment {
1.159 albertel 1110: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1111: my $result;
1112: if ($target eq "edit") {
1113: $result.= &Apache::edit::tag_end($target,$token,'');
1114: }
1115: return $result;
1.4 tsai 1116: }
1117:
1118: sub start_while {
1.326 albertel 1119: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1120:
1.160 albertel 1121: my $result;
1.161 albertel 1122: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 1123: $target eq 'tex' || $target eq 'analyze') {
1124: my $code = $token->[2]->{'condition'};
1.4 tsai 1125:
1.160 albertel 1126: push( @Apache::structuretags::whileconds, $code);
1127: if (!$Apache::lonxml::default_homework_loaded) {
1128: &Apache::lonxml::default_homework_load($safeeval);
1129: }
1130: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1131: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1132: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1133: push( @Apache::structuretags::whileline, $token->[5]);
1134: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1135: if ( $result ) {
1136: &Apache::lonxml::newparser($parser,\$bodytext);
1137: }
1138: } elsif ($target eq 'edit') {
1139: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1140: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1141: $token,40);
1142: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1143: } elsif ($target eq 'modified') {
1144: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1145: $safeeval,'condition');
1146: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1147: }
1.160 albertel 1148: return $result;
1.4 tsai 1149: }
1150:
1151: sub end_while {
1.159 albertel 1152: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1153: my $result;
1154:
1155: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1156: $target eq 'tex' || $target eq 'analyze') {
1157: my $code = pop(@Apache::structuretags::whileconds);
1158: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1159: my $line = pop(@Apache::structuretags::whileline);
1160: my $return = &Apache::run::run($code,$safeeval);
1161: my $starttime=time;
1162: my $error=0;
1163: while ($return) {
1164: if (time-$starttime >
1165: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.270 albertel 1166: #$return = 0; $error=1; next;
1.161 albertel 1167: }
1168: $result.=&Apache::scripttag::xmlparse($bodytext);
1169: $return = &Apache::run::run($code,$safeeval);
1170: }
1171: if ($error) {
1.270 albertel 1172: &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 1173: }
1174: } elsif ($target eq "edit") {
1175: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1176: }
1.160 albertel 1177: return $result;
1.1 albertel 1178: }
1.6 tsai 1179:
1.160 albertel 1180: # <randomlist show="1">
1.6 tsai 1181: # <tag1>..</tag1>
1182: # <tag2>..</tag2>
1183: # <tag3>..</tag3>
1.160 albertel 1184: # ...
1.6 tsai 1185: # </randomlist>
1186: sub start_randomlist {
1.326 albertel 1187: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1188: my $result;
1189: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1190: $target eq 'tex' || $target eq 'analyze') {
1.331 albertel 1191: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1192: my $b_parser= HTML::LCParser->new(\$body);
1193: $b_parser->xml_mode(1);
1194: $b_parser->marked_sections(1);
1.159 albertel 1195: my $b_tok;
1196: my @randomlist;
1197: my $list_item;
1198: while($b_tok = $b_parser->get_token() ) {
1199: if($b_tok->[0] eq 'S') { # start tag
1200: # get content of the tag until matching end tag
1201: # get all text upto the matching tag
1202: # and push the content into @randomlist
1203: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1204: $b_parser);
1205: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1206: push(@randomlist,$list_item);
1207: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1208: # $list_item</b>";
1209: }
1210: if($b_tok->[0] eq 'T') { # text
1211: # what to do with text in between tags?
1212: # print "<b>TEXT $b_tok->[1]</b><br />";
1213: }
1214: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1215: # print "<b>END-TAG $b_tok->[1]</b><br />";
1216: # }
1217: }
1.303 albertel 1218: if (@randomlist) {
1219: my @idx_arr = (0 .. $#randomlist);
1220: &Apache::structuretags::shuffle(\@idx_arr);
1221: my $bodytext = '';
1222: my $show=$#randomlist;
1223: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1224: $showarg--;
1225: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1226: for(0 .. $show) {
1227: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1228: }
1229: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1230: }
1231: } elsif ($target eq 'edit' ) {
1232: $result .=&Apache::edit::tag_start($target,$token);
1233: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1234: $token,5);
1235: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1236: } elsif ($target eq 'modified' ) {
1237: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1238: $safeeval,'show');
1239: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1240: }
1241: return $result;
1.7 tsai 1242: }
1243:
1244: sub shuffle {
1245: my $a=shift;
1246: my $i;
1.303 albertel 1247: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1248: &Apache::response::pushrandomnumber();
1.159 albertel 1249: for($i=@$a;--$i;) {
1250: my $j=int(&Math::Random::random_uniform() * ($i+1));
1251: next if $i == $j;
1252: @$a[$i,$j] = @$a[$j,$i];
1253: }
1.251 albertel 1254: &Apache::response::poprandomnumber();
1.7 tsai 1255: }
1.6 tsai 1256: }
1257:
1258: sub end_randomlist {
1.159 albertel 1259: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1260: my $result;
1261: if ($target eq 'edit' ) {
1262: $result=&Apache::edit::tag_end($target,$token,
1263: 'End Randomly Parsed Block');
1264: }
1265: return $result;
1.6 tsai 1266: }
1267:
1.283 albertel 1268: sub ordered_show_check {
1269: my $last_part=$Apache::inputtags::partlist[-2];
1270: my $in_order=
1271: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1272: my $in_order_show=1;
1273: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1274: $in_order_show=&Apache::response::check_status($last_part);
1275: }
1276: return $in_order_show;
1277: }
1278:
1.11 albertel 1279: sub start_part {
1.326 albertel 1280: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1281: if (!$Apache::lonxml::metamode) {
1282: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1283: # duedates.
1284: }
1.159 albertel 1285: my $result='';
1286: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.296 albertel 1287: if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
1.159 albertel 1288: $Apache::inputtags::part=$id;
1.177 albertel 1289: push(@Apache::inputtags::partlist,$id);
1290: @Apache::inputtags::response=();
1.159 albertel 1291: @Apache::inputtags::previous=();
1292: @Apache::inputtags::previous_version=();
1.241 albertel 1293: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1294: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1295: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1296: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1297: my $in_order_show=&ordered_show_check();
1.214 albertel 1298: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1299: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1300: &Apache::run::run($expression,$safeeval);
1.159 albertel 1301:
1302: if ($target eq 'meta') {
1.224 www 1303: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1304: return &Apache::response::mandatory_part_meta.
1305: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1306: } elsif ($target eq 'web' || $target eq 'grade' ||
1307: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1308: if ($hidden || !$in_order_show) {
1.326 albertel 1309: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1310: } else {
1311: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1312: push (@Apache::inputtags::status,$status);
1313: my $expression='$external::datestatus="'.$status.'";';
1314: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1315: &Apache::run::run($expression,$safeeval);
1.284 albertel 1316: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1317: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1318: }
1.216 albertel 1319: if (( $status eq 'CLOSED' ) ||
1320: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1321: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1322: ( $status eq 'BANNED') ||
1323: ( $status eq 'UNAVAILABLE') ||
1324: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1325: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1326: $style);
1.159 albertel 1327: if ( $target eq "web" ) {
1.211 albertel 1328: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1329: } elsif ( $target eq 'tex' ) {
1.284 albertel 1330: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1331: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1332: } else {
1.211 albertel 1333: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1334: }
1.159 albertel 1335: }
1336: } else {
1337: if ($target eq 'tex') {
1.284 albertel 1338: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1339: if ($$tagstack[-2] eq 'td') {
1340: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1341: } else {
1342: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1343: }
1.195 sakharuk 1344: }
1.159 albertel 1345: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1346: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1347: my @allkeys = split /,/,$allkeys;
1348: my $allow_print_points = 0;
1349: foreach my $partial_key (@allkeys) {
1.230 albertel 1350: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1351: if ($1 ne '0') {$allow_print_points=1;}
1352: }
1353: }
1.275 albertel 1354: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1355: if (defined($maxtries) && $maxtries < 0) {
1356: $allow_print_points=0;
1357: }
1.302 albertel 1358: if (lc($env{'course.'.$env{'request.course.id'}.
1359: '.disableexampointprint'}) eq 'yes') {
1360: $allow_print_points=0;
1361: }
1.222 sakharuk 1362: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1363: } elsif ($target eq 'web') {
1364: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1365: }
1366: }
1367: }
1368: } elsif ($target eq 'edit') {
1369: $result.=&Apache::edit::tag_start($target,$token);
1370: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1371: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1372: ' '.
1373: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1374: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1375: } elsif ($target eq 'modified') {
1376: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1377: $safeeval,'id','display');
1.159 albertel 1378: if ($constructtag) {
1.225 albertel 1379: #limiting ids to only letters numbers, and space
1.224 www 1380: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1381: $result = &Apache::edit::rebuild_tag($token);
1382: $result.=&Apache::edit::handle_insert();
1383: }
1384: }
1385: return $result;
1.11 albertel 1386: }
1387:
1388: sub end_part {
1.159 albertel 1389: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1390: &Apache::lonxml::debug("in end_part $target ");
1391: my $status=$Apache::inputtags::status['-1'];
1392: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1393: my $in_order_show=&ordered_show_check();
1.321 albertel 1394: my $result;
1395: if (!$Apache::lonxml::metamode) {
1396: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1397: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1398: }
1.312 albertel 1399: if ($target eq 'grade') {
1.249 albertel 1400: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1401: !$hidden && $in_order_show) {
1.311 foxr 1402: $result.=&Apache::inputtags::grade;
1.249 albertel 1403: } else {
1404: # move any submission data to .hidden
1405: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1406: }
1.283 albertel 1407: } elsif (($target eq 'web' || $target eq 'tex') &&
1408: !$hidden && $in_order_show) {
1.159 albertel 1409: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1410: $target);
1.212 albertel 1411: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1412: $gradestatus='';
1413: }
1.311 foxr 1414: $result.=$gradestatus;
1.265 sakharuk 1415: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1416: } elsif ($target eq 'edit') {
1.311 foxr 1417: $result.=&Apache::edit::end_table();
1.322 albertel 1418: } elsif ($target eq 'modified') {
1419: $result .= $token->[2];
1420: $result.=&Apache::edit::handle_insertafter($token->[1]);
1.159 albertel 1421: }
1422: pop @Apache::inputtags::status;
1423: $Apache::inputtags::part='';
1.295 albertel 1424: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1425: return $result;
1.11 albertel 1426: }
1.1 albertel 1427:
1.25 albertel 1428: sub start_preduedate {
1.326 albertel 1429: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1430: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1.236 albertel 1431: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1432: if (!$Apache::lonhomework::scantronmode &&
1433: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1434: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1435: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1436: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1437: }
1.24 albertel 1438: }
1.159 albertel 1439: return '';
1.24 albertel 1440: }
1441:
1.25 albertel 1442: sub end_preduedate {
1.159 albertel 1443: return '';
1.24 albertel 1444: }
1445:
1.25 albertel 1446: sub start_postanswerdate {
1.326 albertel 1447: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.234 albertel 1448: if ($target eq 'web' || $target eq 'grade') {
1.300 albertel 1449: if ($Apache::lonhomework::scantronmode ||
1450: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.326 albertel 1451: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1452: }
1453: } elsif ($target eq 'tex') {
1.326 albertel 1454: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1455: }
1456: return '';
1.24 albertel 1457: }
1458:
1.25 albertel 1459: sub end_postanswerdate {
1.159 albertel 1460: return '';
1.24 albertel 1461: }
1462:
1.25 albertel 1463: sub start_notsolved {
1.326 albertel 1464: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1465: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1466: $target eq 'tex') {
1467: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1468: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1469: if ($gradestatus =~ /^correct/ &&
1470: &Apache::response::show_answer()) {
1.159 albertel 1471: &Apache::lonxml::debug("skipping");
1.326 albertel 1472: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1473: }
1.24 albertel 1474: }
1.159 albertel 1475: return '';
1.24 albertel 1476: }
1477:
1.25 albertel 1478: sub end_notsolved {
1.159 albertel 1479: return '';
1.24 albertel 1480: }
1481:
1482: sub start_solved {
1.326 albertel 1483: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1484: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1485: $target eq 'tex') {
1486: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1487: if ($gradestatus !~ /^correct/ ||
1488: !&Apache::response::show_answer()) {
1.326 albertel 1489: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1490: }
1.24 albertel 1491: }
1.159 albertel 1492: return '';
1.24 albertel 1493: }
1494:
1495: sub end_solved {
1.248 albertel 1496: return '';
1497: }
1498:
1499: sub start_problemtype {
1.326 albertel 1500: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1501: my $result;
1502: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1503: $target eq 'tex' || $target eq 'analyze') {
1504: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1505: if (!defined($mode)) { $mode='show'; }
1506: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1507: my $found=0;
1508: foreach my $type (split(',',$for)) {
1509: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1510: }
1511: if ($mode eq 'show' && !$found) {
1.326 albertel 1512: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1513: }
1514: if ($mode eq 'hide' && $found) {
1.326 albertel 1515: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1516: }
1517: } elsif ($target eq 'edit') {
1518: $result .=&Apache::edit::tag_start($target,$token);
1519: $result.=&Apache::edit::select_arg('Mode:','mode',
1520: [['show','Show'],
1521: ['hide','Hide']]
1522: ,$token);
1523: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1524: [ ['exam','Exam/Quiz Problem'],
1525: ['survey','Survey'],
1526: ['problem','Homework Problem'] ]
1527: ,$token);
1528: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1529: } elsif ($target eq 'modified') {
1530: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1531: $safeeval,'mode','for');
1532: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1533: }
1534: return $result;
1535: }
1536:
1537: sub end_problemtype {
1.159 albertel 1538: return '';
1.24 albertel 1539: }
1.34 albertel 1540:
1541: sub start_startouttext {
1.159 albertel 1542: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1543: my @result=(''.'');
1544: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1545: return (@result);
1.34 albertel 1546: }
1.159 albertel 1547:
1.34 albertel 1548: sub end_startouttext {
1.326 albertel 1549: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1550: my $result='';
1551: my $text='';
1552:
1553: if ($target eq 'edit') {
1.326 albertel 1554: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1555: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1556: <td>".&mt('Delete:').
1.159 albertel 1557: &Apache::edit::deletelist($target,$token)
1558: ."</td>
1.42 albertel 1559: <td>".
1.159 albertel 1560: &Apache::edit::insertlist($target,$token).
1561: &Apache::edit::end_row().
1562: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1563: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1564: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1565: }
1566: if ($target eq 'modified') {
1.219 albertel 1567: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1568: }
1569: if ($target eq 'tex') {
1570: $result .= '\noindent ';
1571: }
1572: return $result;
1.34 albertel 1573: }
1.159 albertel 1574:
1.34 albertel 1575: sub start_endouttext {
1.159 albertel 1576: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1577: my $result='';
1578: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1579: if ($target eq "modified") {
1580: $result='<endouttext />'.
1581: &Apache::edit::handle_insertafter('startouttext'); }
1582: return $result;
1.34 albertel 1583: }
1.159 albertel 1584:
1.34 albertel 1585: sub end_endouttext {
1.159 albertel 1586: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1587: my @result=('','');
1588: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1589: return (@result);
1.34 albertel 1590: }
1.159 albertel 1591:
1.45 albertel 1592: sub delete_startouttext {
1.326 albertel 1593: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1594: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1595: my $text=$$parser['-1']->get_text("/endouttext");
1596: my $ntoken=$$parser['-1']->get_token();
1597: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1598: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1599: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1600: # they did the last time round
1601: &Apache::lonxml::increasedepth($ntoken);
1602: &Apache::lonxml::decreasedepth($ntoken);
1603: return 1;
1.193 www 1604: }
1605:
1606: sub start_simpleeditbutton {
1607: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1608: my $result='';
1.284 albertel 1609: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1610: ($target eq 'web') &&
1.330 albertel 1611: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1612: my $url=$env{'request.noversionuri'};
1.193 www 1613: $url=~s/\?.*$//;
1.278 albertel 1614: my ($symb) = &Apache::lonxml::whichuser();
1.194 www 1615: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.278 albertel 1616: '<a href="'.$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 1617: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1618: }
1619: return $result;
1620: }
1621:
1622: sub end_simpleeditbutton {
1623: return '';
1.45 albertel 1624: }
1.34 albertel 1625:
1.1 albertel 1626: 1;
1627: __END__
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