Annotation of loncom/homework/structuretags.pm, revision 1.487
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.487 ! www 4: # $Id: structuretags.pm,v 1.486 2011/01/18 21:45:32 www 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:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.267 albertel 64: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 65: use lib '/home/httpd/lib/perl/';
66: use LONCAPA;
67:
1.78 harris41 68: BEGIN {
1.469 www 69: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startpartmarker','startouttext','endpartmarker','endouttext','simpleeditbutton','definetag'));
1.10 albertel 70: }
71:
72: sub start_web {
1.326 albertel 73: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 74: if ($target ne 'edit' && $target ne 'modified') {
75: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
76: if ($target eq 'web' || $target eq 'webgrade') {
77: return $bodytext;
78: }
79: } elsif ($target eq "edit" ) {
80: my $bodytext =
81: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
82: my $result = &Apache::edit::tag_start($target,$token);
83: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
84: return $result;
85: } elsif ( $target eq "modified" ) {
86: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 87: }
88: return '';
1.10 albertel 89: }
90:
91: sub end_web {
1.44 ng 92: return '';
1.10 albertel 93: }
94:
95: sub start_tex {
1.326 albertel 96: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 97: my $result='';
1.383 albertel 98: if ($target ne 'edit' && $target ne 'modified') {
99: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
100: if ($target eq 'tex') {
1.434 foxr 101:
102: # If inside a table, occurrences of \\ must be removed;
103: # else the table blows up.
104:
105: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
106: $bodytext =~ s/\\\\//g;
107: }
1.432 foxr 108: return $bodytext.'{}';
1.383 albertel 109: }
110: } elsif ($target eq "edit" ) {
111: my $bodytext =
112: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
113: my $result = &Apache::edit::tag_start($target,$token);
114: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
115: return $result;
116: } elsif ( $target eq "modified" ) {
117: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 118: }
1.198 sakharuk 119: return $result;;
1.10 albertel 120: }
121:
122: sub end_tex {
1.44 ng 123: return '';
1.9 albertel 124: }
125:
1.400 albertel 126: sub homework_js {
127: return &Apache::loncommon::resize_textarea_js().
1.416 raeburn 128: &setmode_javascript().
1.400 albertel 129: <<'JS';
130: <script type="text/javascript">
1.483 raeburn 131: // <![CDATA[
1.400 albertel 132: function setSubmittedPart (part) {
133: this.document.lonhomework.submitted.value="part_"+part;
134: }
135:
136: function image_response_click (which, e) {
137: init_geometry();
138: if (!e) { e = window.event; } //IE
139: var input_element = document.lonhomework.elements[which];
1.401 albertel 140: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 141: var token = token_element.value;
1.401 albertel 142: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 143: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
144: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
145: var click = x+':'+y;
146: input_element.value = click;
1.485 raeburn 147: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 148: }
1.483 raeburn 149: // ]]>
1.400 albertel 150: </script>
151: JS
152: }
153:
1.416 raeburn 154: sub setmode_javascript {
155: return <<"ENDSCRIPT";
156: <script type="text/javascript">
1.485 raeburn 157: // <![CDATA[
1.416 raeburn 158: function setmode(form,probmode) {
159: form.problemmode.value = probmode;
160: form.submit();
161: }
1.485 raeburn 162: // ]]>
1.416 raeburn 163: </script>
164: ENDSCRIPT
165: }
166:
1.478 raeburn 167: sub file_delchk_js {
1.484 raeburn 168: my $delfilewarn = &mt('You have indicated you wish to remove some files previously included in your submission.').'\\n'.
169: &mt('Continue submission with these files removed?');
1.478 raeburn 170: return <<"ENDSCRIPT";
171: <script type="text/javascript">
1.483 raeburn 172: // <![CDATA[
1.478 raeburn 173: function file_deletion_check(formname) {
174: var elemnum = formname.elements.length;
175: if (elemnum == 0) {
176: return true;
177: }
1.482 raeburn 178: var str = new RegExp("^HWFILE.+_delete\$");
179: var delboxes = new Array();
180: for (var i=0; i<formname.elements.length; i++) {
1.478 raeburn 181: var id = formname.elements[i].id;
182: if (id != '') {
183: if (str.test(id)) {
184: if (formname.elements[i].type == 'checkbox') {
185: if (formname.elements[i].checked) {
1.482 raeburn 186: delboxes.push(id);
1.478 raeburn 187: }
188: }
189: }
190: }
191: }
1.482 raeburn 192: if (delboxes.length > 0) {
1.478 raeburn 193: if (confirm("$delfilewarn")) {
194: return true;
195: } else {
1.482 raeburn 196: for (var j=0; j<delboxes.length; j++) {
197: formname.elements[delboxes[j]].checked = false;
198: }
1.478 raeburn 199: return false;
200: }
201: } else {
202: return true;
203: }
204: }
1.483 raeburn 205: // ]]>
1.478 raeburn 206: </script>
207: ENDSCRIPT
208: }
209:
1.48 albertel 210: sub page_start {
1.345 albertel 211: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
212: $extra_head)=@_;
1.159 albertel 213: my %found;
1.207 albertel 214: foreach my $taginside (@$tagstack) {
1.159 albertel 215: foreach my $taglookedfor ('html','body','form') {
216: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
217: }
218: }
219:
1.343 albertel 220: if ($target eq 'tex') {
221: return
222: &Apache::londefdef::start_html($target,$token,$tagstack,
223: $parstack,$parser,$safeeval);
224: }
225:
1.474 raeburn 226: $extra_head .= &homework_js().
227: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
228: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
229: my %textarea_args = (
230: dragmath => 'math',
231: );
232: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 233: }
1.478 raeburn 234: my $is_task = ($env{'request.uri'} =~ /\.task$/);
235: if ($is_task) {
236: $extra_head .= &file_delchk_js();
237: }
1.425 raeburn 238:
1.344 albertel 239: my %body_args;
240: if (defined($found{'html'})) {
241: $body_args{'skip_phases'}{'head'}=1;
242: } else {
1.343 albertel 243:
1.345 albertel 244: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 245:
1.379 albertel 246: $extra_head .= &Apache::londefdef::generate_css_links();
247:
1.384 albertel 248: if ($env{'request.state'} eq 'construct') {
1.343 albertel 249: $extra_head.=&Apache::edit::js_change_detection().
250: "<script type=\"text/javascript\">\n".
251: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
252: &Apache::loncommon::browser_and_searcher_javascript().
253: "\n</script>\n";
254: }
1.159 albertel 255: }
1.343 albertel 256:
1.446 bisitz 257: my $pageheader = '';
1.344 albertel 258: if (defined($found{'body'})) {
259: $body_args{'skip_phases'}{'body'}=1;
260: } elsif (!defined($found{'body'})
261: && $env{'request.state'} eq 'construct') {
1.343 albertel 262: if ($target eq 'web' || $target eq 'edit') {
1.450 bisitz 263: # Breadcrumbs for Construction Space
264: &Apache::lonhtmlcommon::clear_breadcrumbs();
265: &Apache::lonhtmlcommon::add_breadcrumb({
266: 'text' => 'Construction Space',
267: 'href' => &Apache::loncommon::authorspace(),
268: });
1.460 droeschl 269: # breadcrumbs (and tools) will be created
270: # in start_page->bodytag->innerregister
271:
1.450 bisitz 272: # FIXME Where are we?
273: # &Apache::lonhtmlcommon::add_breadcrumb({
274: # 'text' => 'Problem Editing', # 'Problem Testing'
275: # 'href' => '',
276: # });
1.460 droeschl 277: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 278: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 279: }
1.272 albertel 280: } elsif (!defined($found{'body'})) {
1.343 albertel 281: my %add_entries;
1.159 albertel 282: my $background=&Apache::lonxml::get_param('background',$parstack,
283: $safeeval);
1.343 albertel 284: if ($background ne '' ) {
285: $add_entries{'background'} = $background;
286: }
1.344 albertel 287:
1.290 albertel 288: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
289: $safeeval);
1.446 bisitz 290: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 291:
1.446 bisitz 292: $body_args{'bgcolor'} = $bgcolor;
293: # $body_args{'no_title'} = 1;
294: $body_args{'force_register'} = 1;
295: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 296: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 297: $body_args{'only_body'} = 1;
298: }
1.344 albertel 299: }
1.365 albertel 300: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 301: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
302: \%body_args);
1.446 bisitz 303: $page_start .= $pageheader;
1.462 raeburn 304: if (!defined($found{'body'})
305: && $env{'request.state'} ne 'construct'
306: && ($target eq 'web' || $target eq 'webgrade')) {
307:
308: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
309: if ($symb eq '' && !$publicuser) {
310: $page_start .= '<p class="LC_info">'
311: .&mt('Browsing resource, all submissions are temporary.')
312: .'</p>';
1.457 bisitz 313: }
1.344 albertel 314: }
315:
1.409 albertel 316: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 317: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 318: }
1.344 albertel 319:
1.159 albertel 320: my $form_tag_start;
321: if (!defined($found{'form'})) {
1.337 albertel 322: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 323: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 324: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 325: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 326: $form_tag_start.=$uri.'" ';
327: if ($target eq 'edit') {
328: $form_tag_start.=&Apache::edit::form_change_detection();
329: }
1.478 raeburn 330: if ($is_task) {
331: $form_tag_start .= ' onsubmit="return file_deletion_check(this);"';
332: }
1.368 albertel 333: $form_tag_start.='>'."\n";
1.355 albertel 334:
335: my $symb=&Apache::lonnet::symbread();
336: if ($symb =~ /\S/) {
337: $symb=
338: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
339: $form_tag_start.=
1.368 albertel 340: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 341: }
1.159 albertel 342: }
1.343 albertel 343: return ($page_start,$form_tag_start);
1.105 albertel 344: }
345:
1.141 matthew 346: #use Time::HiRes();
1.105 albertel 347: sub get_resource_name {
1.159 albertel 348: my ($parstack,$safeeval)=@_;
1.388 foxr 349: my $name;
1.204 albertel 350: if (defined($Apache::lonhomework::name)) {
1.388 foxr 351: $name = $Apache::lonhomework::name;
352: } else {
353: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 354: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 355: if ($name eq '') {
356: $name=&Apache::lonnet::EXT('resource.title');
357: if ($name eq 'con_lost') { $name = ''; }
358: }
359: if ($name!~/\S+/) {
360: $name=$env{'request.uri'};
361: $name=~s-.*/([^/]+)$-$1-;
362: }
363: # The name has had html tags escaped:
364:
365: $name=~s/</</gs;
366: $name=~s/>/>/gs;
367:
368: $Apache::lonhomework::name=$name;
1.204 albertel 369: }
1.159 albertel 370: return $name;
1.105 albertel 371: }
372:
373: sub setup_rndseed {
1.479 raeburn 374: my ($safeeval,$target)=@_;
1.367 albertel 375: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 376: my ($questiontype,$set_safespace,$rndseed);
377: if ($target eq 'analyze') {
378: $questiontype = $env{'form.grade_questiontype'};
379: }
380: unless (defined($questiontype)) {
381: $questiontype = $Apache::lonhomework::type;
382: }
1.333 albertel 383: if ($env{'request.state'} eq "construct"
384: || $symb eq ''
385: || $Apache::lonhomework::type eq 'practice'
386: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 387: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 388: ['rndseed']);
1.284 albertel 389: $rndseed=$env{'form.rndseed'};
1.159 albertel 390: if (!$rndseed) {
1.162 albertel 391: $rndseed=$Apache::lonhomework::history{'rndseed'};
392: if (!$rndseed) {
393: $rndseed=time;
394: }
1.284 albertel 395: $env{'form.rndseed'}=$rndseed;
1.162 albertel 396: }
1.479 raeburn 397: if (($env{'request.state'} eq "construct") &&
398: ($Apache::lonhomework::type eq 'randomizetry')) {
399: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
400: if ($tries) {
401: $rndseed += $tries;
402: }
1.480 raeburn 403: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 404: }
1.374 albertel 405: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
406: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 407: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 408: srand(time);
409: $rndseed=int(rand(2100000000));
1.284 albertel 410: $env{'form.rndseed'}=$rndseed;
411: delete($env{'form.resetdata'});
412: delete($env{'form.newrandomization'});
1.159 albertel 413: }
1.187 albertel 414: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 415: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 416: }
1.247 albertel 417: if ($Apache::lonhomework::history{'resource.CODE'}) {
418: $rndseed=&Apache::lonnet::rndseed();
419: }
1.479 raeburn 420: $set_safespace = 1;
421: } elsif ($questiontype eq 'randomizetry') {
422: if ($target eq 'analyze') {
423: if (defined($env{'form.grade_rndseed'})) {
424: $rndseed = $env{'form.grade_rndseed'};
425: }
426: }
427: unless (($target eq 'analyze') && (defined($rndseed))) {
428: $rndseed=&Apache::lonnet::rndseed();
429: my $curr_try = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
430: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
431: $curr_try ++;
432: }
433: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
434: $rndseed = $1;
435: }
436: if ($curr_try) {
437: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
438: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
439: my $inc = int(($curr_try-1)/$reqtries);
440: $rndseed += $inc;
441: } else {
442: $rndseed += $curr_try;
443: }
444: }
445: }
446: $set_safespace = 1;
447: }
448: if ($set_safespace) {
449: if ($safeeval) {
450: &Apache::lonxml::debug("Setting rndseed to $rndseed");
451: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
452: }
453: }
454: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
455: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 456: }
457: return $rndseed;
1.105 albertel 458: }
459:
1.268 albertel 460: sub remember_problem_state {
461: return '
1.284 albertel 462: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
463: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
464: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 465: }
466:
1.487 ! www 467: sub problem_edit_action_button {
! 468: my ($name,$action,$accesskey,$text,$flag)=@_;
! 469: my $actionscript="setmode(this.form,'$action')";
! 470: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
! 471: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
! 472: }
! 473:
1.423 www 474: sub problem_edit_buttons {
1.487 ! www 475: my ($mode)=@_;
! 476: # Buttons that do not save
! 477: my $result='<div class="LC_edit_problem_discards">'.
! 478: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
! 479: if ($mode eq 'editxml') {
! 480: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
! 481: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
! 482: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
! 483: } else {
! 484: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
! 485: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
! 486: }
! 487: $result.="\n</div>";
! 488: # Buttons that save
! 489: $result.='<div class="LC_edit_problem_saves">';
! 490: if ($mode eq 'editxml') {
! 491: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
! 492: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
! 493: } else {
! 494: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
! 495: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
! 496: }
! 497: $result.="\n</div>\n";
! 498: return $result;
1.423 www 499: }
500:
501: sub problem_edit_header {
1.487 ! www 502: return '<input type="hidden" name="submitted" value="edit" />'.
! 503: &remember_problem_state('edit').'
1.423 www 504: <div class="LC_edit_problem_header">
505: <div class="LC_edit_problem_header_title">
506: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
507: </div>'.
1.487 ! www 508: '<input type="hidden" name="problemmode" value="saveedit" />'.
1.423 www 509: &problem_edit_buttons().'
1.459 bisitz 510: <hr style="clear:both;" />
1.409 albertel 511: '.&Apache::lonxml::message_location().'
1.408 albertel 512: </div>
513: '.
1.458 bisitz 514: '<table border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1.105 albertel 515: }
516:
517: sub problem_edit_footer {
1.412 albertel 518: return '</td></tr></table><br />
519: <div class="LC_edit_problem_footer">
1.453 bisitz 520: <hr />'.
1.423 www 521: &problem_edit_buttons().'
1.459 bisitz 522: <hr style="clear:both;" />
1.412 albertel 523: </div>
524: '.
1.342 albertel 525: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 526: }
527:
1.235 albertel 528: sub option {
529: my ($value,$name) = @_;
530: my $result ="<option value='".$value."' ";
1.284 albertel 531: if ($env{'form.'.$name} eq $value) {
1.235 albertel 532: $result.=" selected='on' ";
533: }
534: $result.='>';
535: return $result;
536: }
537:
1.105 albertel 538: sub problem_web_to_edit_header {
1.159 albertel 539: my ($rndseed)=@_;
1.406 albertel 540: my $result .= '<div class="LC_edit_problem_header">';
541:
542: if (!$Apache::lonhomework::parsing_a_task) {
543: $result .=
544: '<div class="LC_edit_problem_header_title">'.
545: &mt('Problem Testing').
546: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
547: '</div>';
548: } else {
549: $result .=
550: '<div class="LC_edit_problem_header_title">'.
551: &mt('Task Testing').
552: '</div>';
553: }
554:
1.315 albertel 555: my $show_all_foils_text =
556: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 557: &mt('Show All Instances')
558: : &mt('Show All Foils');
1.315 albertel 559:
1.452 bisitz 560: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
561: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 562: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 563: $show_all.= ' /> '.$show_all_foils_text
564: .'</label></span>';
1.406 albertel 565:
566:
1.384 albertel 567:
1.406 albertel 568: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 569: if (!$Apache::lonhomework::parsing_a_task) {
570: $result.="
1.406 albertel 571: <div class='LC_edit_problem_header_row1'>
572: <span class=\"LC_nobreak\">
1.405 albertel 573: ".&mt("Problem Status:")."
1.235 albertel 574: <select name='problemstate'>
1.270 albertel 575: <option value=''></option>
1.235 albertel 576: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
577: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
578: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
579: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
580: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
581: </select>
1.406 albertel 582: </span>
583: <span class=\"LC_nobreak\">
1.405 albertel 584: ".&mt("Problem Type:")."
1.235 albertel 585: <select name='problemtype'>
1.270 albertel 586: <option value=''></option>
1.242 albertel 587: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 588: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 589: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 590: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
591: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
592: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 593: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 594: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 595: </select>
1.406 albertel 596: </span>
597: $show_all
598: </div>
599: <div class='LC_edit_problem_header_row2'>
600: <span class=\"LC_nobreak\">
1.405 albertel 601: ".&mt("Feedback Mode:")."
1.235 albertel 602: <select name='problemstatus'>
603: <option value=''></option>
1.242 albertel 604: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 605: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
606: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 607: </select>
1.406 albertel 608: </span>
609: ";
610:
1.376 albertel 611: } elsif ($Apache::lonhomework::parsing_a_task) {
612: $result.="
1.406 albertel 613: <div class='LC_edit_problem_header_row1'>
614: <span class=\"LC_nobreak\">
1.405 albertel 615: ".&mt("Problem Status:")."
1.376 albertel 616: <select name='problemstate'>
617: <option value=''></option>
618: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
619: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
620: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
621: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
622: </select>
1.406 albertel 623: </span>
624: $show_all
625: ";
626: }
627: $result.='
628: <span class="LC_nobreak">
629: '.&mt('Apply style file: ').'
630: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
631: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
632: </span>
1.422 www 633: </div>
634: <div class="LC_edit_problem_header_row1">'.
635: &Apache::lonxml::renderingoptions().'
1.406 albertel 636: </div>
637: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
638: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
639: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
640: </div>
1.453 bisitz 641: <hr />
1.406 albertel 642: <div class="LC_edit_problem_header_randomize_row">
643: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
644: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
645: <input type="text" name="rndseed" size="10" value="'.
646: $rndseed.'"
647: onchange="javascript:document.lonhomework.changerandseed.click()" />';
648:
649: if (!$Apache::lonhomework::parsing_a_task) {
650: my $numtoanalyze=$env{'form.numtoanalyze'};
651: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 652: $result .= '<span class="LC_nobreak">'.
653: &mt('[_1] for [_2] versions.',
1.416 raeburn 654: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 655: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
656: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 657: $numtoanalyze.'" size="5" />').
658: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
659: '</span>';
660:
1.313 albertel 661: }
1.406 albertel 662:
663: $result.='
664: </div>
1.453 bisitz 665: <hr />
1.447 bisitz 666: <div>';
1.416 raeburn 667: $result.='<input type="hidden" name="problemmode" value="view" />';
668: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
669: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
670: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
671: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 672: $result.='
673: </div>
1.453 bisitz 674: <hr />
1.409 albertel 675: '.&Apache::lonxml::message_location().'
1.406 albertel 676: </div>';
1.159 albertel 677: return $result;
1.48 albertel 678: }
679:
1.65 albertel 680: sub initialize_storage {
1.357 albertel 681: my ($given_symb) = @_;
1.353 albertel 682: undef(%Apache::lonhomework::results);
683: undef(%Apache::lonhomework::history);
1.357 albertel 684: my ($symb,$courseid,$domain,$name) =
1.367 albertel 685: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 686:
687: # anonymous users (CODEd exams) have no data
688: if ($name eq 'anonymous'
689: && !defined($domain)) {
690: return;
691: }
692:
1.333 albertel 693: if ($env{'request.state'} eq 'construct'
694: || $symb eq ''
695: || $Apache::lonhomework::type eq 'practice') {
696:
697: my $namespace = $symb || $env{'request.uri'};
698: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 699: ($env{'form.resetdata'} eq &mt('New Problem Variation')
700: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 701: $env{'form.newrandomization'} eq &mt('New Randomization')) {
702: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
703: &Apache::lonxml::debug("Attempt reset");
704: }
1.159 albertel 705: %Apache::lonhomework::history=
1.333 albertel 706: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 707: my ($temp)=keys %Apache::lonhomework::history ;
708: &Apache::lonxml::debug("Return message of $temp");
709: } else {
710: %Apache::lonhomework::history=
711: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
712: }
1.353 albertel 713:
1.159 albertel 714: #ignore error conditions
1.67 albertel 715: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 716: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 717: }
718:
1.435 jms 719: =pod
720:
721: =item finalize_storage()
722:
723: Stores away the result has to a student's environment
724: checks form.grade_ for specific values, other wises stores
725: to the running users environment
726: Will increment totals for attempts, students, and corrects
727: if running user has student role.
728:
729: =cut
730:
731:
1.65 albertel 732: sub finalize_storage {
1.357 albertel 733: my ($given_symb) = @_;
1.159 albertel 734: my $result;
1.289 albertel 735: if (%Apache::lonhomework::results) {
1.323 albertel 736: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
737: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 738: my ($symb,$courseid,$domain,$name) =
1.367 albertel 739: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 740: if ($env{'request.state'} eq 'construct'
741: || $symb eq ''
742: || $Apache::lonhomework::type eq 'practice') {
743: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 744: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 745: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 746: $namespace,'',$domain,$name);
1.159 albertel 747: &Apache::lonxml::debug('Construct Store return message:'.$result);
748: } else {
749: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
750: $symb,$courseid,$domain,$name);
751: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 752: &store_aggregates($symb,$courseid);
1.159 albertel 753: }
1.323 albertel 754: } else {
755: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 756: }
1.159 albertel 757: return $result;
1.65 albertel 758: }
759:
1.435 jms 760: =pod
761:
762: item store_aggregates()
763:
764: Sends hash of values to be incremented in nohist_resourcetracker.db
765: for the course. Increments total number of attempts, unique students
766: and corrects for each part for an instance of a problem, as appropriate.
767:
768: =cut
769:
1.285 raeburn 770: sub store_aggregates {
771: my ($symb,$courseid) = @_;
1.479 raeburn 772: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 773: my @parts;
1.288 albertel 774: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
775: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 776: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 777: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 778: push(@parts, $1);
1.285 raeburn 779: }
780: }
1.286 albertel 781: foreach my $part (@parts) {
1.470 raeburn 782: if ($env{'request.role'} =~/^st/) {
783: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
784: eq 'APPROX_ANS' ||
785: $Apache::lonhomework::results{'resource.'.$part.'.award'}
786: eq 'EXACT_ANS') {
787: $aggregate{$symb."\0".$part."\0correct"} = 1;
788: }
789: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
790: $aggregate{$symb."\0".$part."\0users"} = 1;
791: } else {
792: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
793: if ($last_reset) {
794: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
795: $aggregate{$symb."\0".$part."\0users"} = 1;
796: }
797: }
798: }
799: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 800: }
1.470 raeburn 801: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 802: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
803: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
804: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
805: $randtrycounter{$symb."\0".$part} = 1;
806: } else {
807: $anoncounter{$symb."\0".$part} = 1;
808: }
1.470 raeburn 809: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
810: if ($needsrelease) {
811: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
812: if ($curr_required eq '') {
1.471 raeburn 813: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 814: } else {
815: my ($currmajor,$currminor) = split(/\./,$curr_required);
816: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
817: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 818: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 819: }
1.292 raeburn 820: }
821: }
1.285 raeburn 822: }
823: }
1.292 raeburn 824: if (keys (%aggregate) > 0) {
1.289 albertel 825: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 826: $cdomain,$cname);
827: }
1.472 raeburn 828: if (keys(%anoncounter) > 0) {
1.481 raeburn 829: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
830: $cdomain,$cname);
1.472 raeburn 831: }
1.479 raeburn 832: if (keys(%randtrycounter) > 0) {
1.481 raeburn 833: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
834: $cdomain,$cname);
1.479 raeburn 835: }
1.292 raeburn 836: }
1.289 albertel 837:
1.65 albertel 838: sub checkout_msg {
1.211 albertel 839: my %lt=&Apache::lonlocal::texthash(
840: 'resource'=>'The resource needs to be checked out',
841: '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.',
842: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
843: 'checkout'=>'Check out Exam for Viewing',
844: 'checkout?'=>'Check out Exam?');
1.352 albertel 845: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 846: return (<<ENDCHECKOUT);
1.211 albertel 847: <h2>$lt{'resource'}</h2>
848: <p>$lt{'id_expln'}</p>
1.449 bisitz 849: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 850: <form name="checkout" method="post" action="$uri">
1.91 albertel 851: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 852: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 853: </form>
854: ENDCHECKOUT
855: }
856:
1.252 albertel 857: sub firstaccess_msg {
1.253 albertel 858: my ($time,$symb)=@_;
1.414 albertel 859: my $result;
860: my @interval=&Apache::lonnet::EXT("resource.0.interval");
861: if ($interval[1] eq 'map') {
862: my ($map)=&Apache::lonnet::decode_symb($symb);
863: my $foldertitle=&Apache::lonnet::gettitle($map);
864:
865: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 866: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
867: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
868: ,$foldertitle,$time)."</h2>";
1.414 albertel 869: } elsif ($interval[1] eq 'course') {
870: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 871: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
872: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
873: ,$course,$time)."</h2>";
1.414 albertel 874: } else {
875: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 876: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
877: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
878: ,$title,$time)."</h2>";
1.414 albertel 879: }
1.352 albertel 880: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 881: my $buttontext = &mt('Show Resource');
882: my $timertext = &mt('Start Timer?');
1.414 albertel 883: $result .= (<<ENDCHECKOUT);
1.444 bisitz 884: <form name="markaccess" method="post" action="$uri">
1.252 albertel 885: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 886: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 887: </form>
888: ENDCHECKOUT
1.414 albertel 889: return $result;
1.252 albertel 890: }
891:
1.204 albertel 892: sub init_problem_globals {
893: my ($type)=@_;
894: #initialize globals
1.308 foxr 895: # For problems, we start out in part 0 (outside a <part> tag).
896: # and part 0 is used to describe the main body of the <problem>
897: #
1.204 albertel 898: if ($type eq 'problem') {
899: $Apache::inputtags::part='0';
900: @Apache::inputtags::partlist=('0');
1.405 albertel 901: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 902: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 903:
1.266 albertel 904: } elsif ($type eq 'library') {
1.204 albertel 905: $Apache::inputtags::part='';
906: @Apache::inputtags::partlist=();
1.405 albertel 907: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 908: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 909:
1.304 albertel 910: } elsif ($type eq 'Task') {
911: $Apache::inputtags::part='0';
912: @Apache::inputtags::partlist=('0');
1.405 albertel 913: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 914: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 915: }
1.477 www 916: @Apache::functionplotresponse::callscripts=();
1.204 albertel 917: @Apache::inputtags::responselist = ();
918: @Apache::inputtags::importlist = ();
919: @Apache::inputtags::previous=();
920: @Apache::inputtags::previous_version=();
921: $Apache::structuretags::printanswer='No';
922: @Apache::structuretags::whileconds=();
923: @Apache::structuretags::whilebody=();
924: @Apache::structuretags::whileline=();
925: $Apache::lonhomework::scantronmode=0;
926: undef($Apache::lonhomework::name);
1.358 albertel 927: undef($Apache::lonhomework::default_type);
928: undef($Apache::lonhomework::type);
1.204 albertel 929: }
930:
931: sub reset_problem_globals {
932: my ($type)=@_;
933: undef(%Apache::lonhomework::history);
934: undef(%Apache::lonhomework::results);
935: undef($Apache::inputtags::part);
1.208 albertel 936: #don't undef this, lonhomework.pm takes care of this, we use this to
937: #detect if we try to do 2 problems in one file
938: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 939: undef($Apache::lonhomework::name);
1.358 albertel 940: undef($Apache::lonhomework::default_type);
941: undef($Apache::lonhomework::type);
942: undef($Apache::lonhomework::scantronmode);
943: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 944: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 945: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 946: }
947:
1.241 albertel 948: sub set_problem_state {
1.240 albertel 949: my ($part)=@_;
1.284 albertel 950: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 951: $Apache::lonhomework::history{"resource.$part.solved"}=
952: 'correct_by_student';
953: }
954: }
955:
1.241 albertel 956: sub get_problem_status {
957: my ($part)=@_;
1.267 albertel 958: my $problem_status;
1.284 albertel 959: if ($env{'request.state'} eq 'construct' &&
960: defined($env{'form.problemstatus'})) {
961: $problem_status=$env{'form.problemstatus'};
1.267 albertel 962: } else {
963: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
964: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 965: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 966: }
967: return $problem_status;
968: }
969:
1.9 albertel 970: sub start_problem {
1.326 albertel 971: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 972:
1.311 foxr 973: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 974: if (!$Apache::lonxml::metamode) {
975: &Apache::lonxml::startredirection();
976: }
1.311 foxr 977:
1.308 foxr 978: # Problems don't nest and we don't allow more than one <problem> in
979: # a .problem file.
980: #
1.184 albertel 981: if ( $Apache::inputtags::part ne '' ||
982: $Apache::lonhomework::parsing_a_problem) {
983: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 984: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 985: return '';
986: }
1.184 albertel 987:
988: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 989: &init_problem_globals('problem');
1.166 albertel 990:
1.284 albertel 991: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 992: $Apache::lonhomework::scantronmode=1;
993: }
1.161 albertel 994:
1.159 albertel 995: if ($target ne 'analyze') {
1.415 raeburn 996: my $type = &Apache::lonnet::EXT('resource.0.type');
997: $Apache::lonhomework::type=$type;
1.284 albertel 998: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 999: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1000: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1001: }
1.332 albertel 1002: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1003: }
1.164 albertel 1004: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1005: my $uri=$env{'request.uri'};
1.159 albertel 1006: if ($uri=~/\.(\w+)$/) {
1007: $Apache::lonhomework::type=$1;
1008: &Apache::lonxml::debug("Using type of $1");
1009: } else {
1010: $Apache::lonhomework::type='problem';
1011: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1012: }
1.87 albertel 1013: }
1.301 albertel 1014: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1015:
1.363 albertel 1016: &initialize_storage();
1.389 albertel 1017: if ($target ne 'analyze'
1018: && $env{'request.state'} eq 'construct') {
1019: &set_problem_state('0');
1020: }
1021:
1.366 albertel 1022: if ($target eq 'web') {
1023: &Apache::lonxml::debug(" grading history ");
1024: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1025: }
1.363 albertel 1026:
1.159 albertel 1027: #added vars to the scripting enviroment
1.213 albertel 1028: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1029: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1030: &Apache::run::run($expression,$safeeval);
1.159 albertel 1031: my $status;
1032: my $accessmsg;
1033:
1.343 albertel 1034: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 1035: my ($result,$form_tag_start);
1.354 albertel 1036: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1037: || $target eq 'edit') {
1.350 albertel 1038: ($result,$form_tag_start) =
1039: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1040: $name);
1041: }
1042:
1.284 albertel 1043: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1044:
1.479 raeburn 1045: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1046: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1047: $target eq 'tex') {
1.284 albertel 1048: if ($env{'form.markaccess'}) {
1.414 albertel 1049: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1050: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 1051: }
1.479 raeburn 1052:
1053: ($status,$accessmsg,my $slot_name,my $slot) =
1054: &Apache::lonhomework::check_slot_access('0','problem');
1055: push (@Apache::inputtags::status,$status);
1056:
1.159 albertel 1057: #handle rand seed in construction space
1.479 raeburn 1058: my $rndseed=&setup_rndseed($safeeval,$target);
1.367 albertel 1059: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1060:
1.333 albertel 1061: if ($env{'request.state'} ne "construct" &&
1062: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1063: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1064: $rndseed.'" />'.
1065: '<input type="submit" name="resetdata"
1066: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1067: if (exists($env{'form.username'})) {
1068: $form_tag_start.=
1.164 albertel 1069: '<input type="hidden" name="username"
1.284 albertel 1070: value="'.$env{'form.username'}.'" />';
1.334 albertel 1071: }
1.462 raeburn 1072: if ($env{'request.role.adv'}) {
1073: $form_tag_start.= ' <label class="LC_nobreak">'
1074: .'<input type="checkbox" name="showallfoils"';
1075: if (defined($env{'form.showallfoils'})) {
1076: $form_tag_start.=' checked="checked"';
1077: }
1078: $form_tag_start.= ' /> '
1079: .&mt('Show All Foils')
1080: .'</label>';
1081: }
1.417 www 1082: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1083: $form_tag_start.=&practice_problem_header();
1.417 www 1084: }
1.462 raeburn 1085: $form_tag_start.='<hr />';
1.479 raeburn 1086: } elsif (($env{'request.state'} ne "construct") &&
1087: ($Apache::lonhomework::type eq 'randomizetry') &&
1088: ($status eq 'CAN_ANSWER')) {
1089: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1090: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1091: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1092: }
1.324 albertel 1093:
1.159 albertel 1094: my $expression='$external::datestatus="'.$status.'";';
1095: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1096: &Apache::run::run($expression,$safeeval);
1097: &Apache::lonxml::debug("Got $status");
1.324 albertel 1098:
1.159 albertel 1099: if (( $status eq 'CLOSED' ) ||
1100: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1101: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1102: ( $status eq 'BANNED') ||
1.216 albertel 1103: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1104: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 1105: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1106: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1107: $style);
1.159 albertel 1108: if ( $target eq "web" ) {
1.343 albertel 1109: my $msg;
1.159 albertel 1110: if ($status eq 'UNAVAILABLE') {
1.245 albertel 1111: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 1112: } elsif ($status eq 'NOT_IN_A_SLOT') {
1113: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 1114: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 1115: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 1116: }
1.216 albertel 1117: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1118: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1119: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1120: $msg.=&checkout_msg();
1.252 albertel 1121: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1122: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1123: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1124: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 1125: }
1126: $result.=$msg.'<br />';
1127: } elsif ($target eq 'tex') {
1.332 albertel 1128: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1129: : '\begin{minipage}{\textwidth}';
1.443 foxr 1130: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1131: $startminipage.'\vskip 0 mm';
1.159 albertel 1132: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1133: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1134: } else {
1.211 albertel 1135: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1136: }
1137: }
1.324 albertel 1138: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1139: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1140: $style);
1.324 albertel 1141: if ($target eq 'web') {
1.375 albertel 1142: $result .=
1143: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1144: } elsif ($target eq 'grade') {
1145: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1146: 'problem');
1147: }
1.159 albertel 1148: } elsif ($target eq 'web') {
1.360 albertel 1149: if ($status eq 'CAN_ANSWER'
1150: && $slot_name ne ''
1151: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1152: # unproctored slot access, self checkin
1153: &Apache::bridgetask::check_in('problem',undef,undef,
1154: $slot_name);
1155: }
1.368 albertel 1156: $result.="\n $form_tag_start \t".
1.227 albertel 1157: '<input type="hidden" name="submitted" value="yes" />';
1158: # create a page header and exit
1.284 albertel 1159: if ($env{'request.state'} eq "construct") {
1160: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1161: if ($Apache::lonhomework::type eq 'practice') {
1162: $result.= '<input type="submit" name="resetdata" '.
1163: 'value="'.&mt('New Problem Variation').'" />'.
1164: &practice_problem_header().'<hr />';
1165: }
1.227 albertel 1166: }
1167: # if we are viewing someone else preserve that info
1.284 albertel 1168: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1169: foreach my $field ('symb','courseid','domain','username') {
1170: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1171: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1172: }
1.479 raeburn 1173: foreach my $field ('trial','questiontype') {
1174: if ($env{"form.grade_$field"} ne '') {
1175: $result .= '<input type="hidden" name="grade_'.$field.
1176: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1177: }
1178: }
1.159 albertel 1179: }
1180: } elsif ($target eq 'tex') {
1.319 foxr 1181: $result .= 'INSERTTEXFRONTMATTERHERE';
1182:
1.99 sakharuk 1183: }
1.159 albertel 1184: } elsif ($target eq 'edit') {
1.343 albertel 1185: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1186: $Apache::lonxml::warnings_error_header=
1187: &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 1188: my $temp=&Apache::edit::insertlist($target,$token);
1189: $result.=$temp;
1190: } elsif ($target eq 'modified') {
1191: $result=$token->[4];
1192: } else {
1193: # page_start returned a starting result, delete it if we don't need it
1194: $result = '';
1.99 sakharuk 1195: }
1.159 albertel 1196: return $result;
1.9 albertel 1197: }
1198:
1199: sub end_problem {
1.159 albertel 1200: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1201: my $result;
1.310 foxr 1202:
1.321 albertel 1203: if (!$Apache::lonxml::metamode) {
1204: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1205: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1206: }
1.319 foxr 1207:
1208: if ($target eq 'tex') {
1.321 albertel 1209: # Figure out the front matter and replace the
1210: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1211: # this in end_problem because whether or not we display due
1212: # dates depends on whether due dates have already been
1213: # displayed in the problem parts.
1214:
1.319 foxr 1215: my $frontmatter = '';
1216: my $startminipage = '';
1217: if (not $env{'form.problem_split'}=~/yes/) {
1218: $startminipage = '\begin{minipage}{\textwidth}';
1219: }
1220: my $id = $Apache::inputtags::part;
1221: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1222: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1223: my @packages = split /,/,$packages;
1224: my $allow_print_points = 0;
1225: foreach my $partial_key (@packages) {
1226: if ($partial_key=~m/^part_0$/) {
1227: $allow_print_points=1;
1228: }
1229: }
1230: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1231: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1232: if (lc($env{'course.'.$env{'request.course.id'}.
1233: '.disableexampointprint'}) eq 'yes') {
1234: $allow_print_points=0;
1235: }
1236: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1237: my $begin_doc=' \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent ';
1.319 foxr 1238: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1239: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1240:
1241: # Figure out what the due date is and if we need to print
1242: # it in the problem header. We have been logging the
1243: # last due date written to file.
1244:
1245: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1246: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1247: my $duedate_text = &mt('Due date: [_1]'
1248: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1249: my $temp_file;
1250: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1251:
1252: # Figure out what the last printed due date is or set it
1253: # to the epoch if no duedates have been printed.
1254:
1255: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1256: if (-e $filename) {
1257: $temp_file = Apache::File->new($filename);
1258: my @due_file = <$temp_file>;
1259: $due_file_content = $due_file[$#due_file];
1260: chomp $due_file_content;
1261: }
1262:
1263: # We display the due date iff it is not the same as the last
1264: # duedate in problem header ($due_file_content), and
1265: # none of our parts displayed a duedate.
1266: #
1267: my $parts_with_displayduedate;
1268: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1269: $parts_with_displayduedate =
1270: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1271: } else {
1272: $parts_with_displayduedate = 0;
1273: }
1274: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1275: $temp_file = Apache::File->new('>'.$filename);
1276: print $temp_file "$duetime\n";
1277: if (not $env{'request.symb'} =~ m/\.page_/) {
1278: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1279: $frontmatter .= $begin_doc.
1.448 bisitz 1280: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1281: } else {
1282: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1283: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1284: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1285: }
1.319 foxr 1286: }
1287: } else {
1.448 bisitz 1288: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1289: }
1290: } else {
1291: if (not $env{'request.symb'} =~ m/\.page_/) {
1292: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1293: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1294: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1295: }
1.319 foxr 1296: } else {
1.381 albertel 1297: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1298: }
1299: }
1300: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1301: }
1302:
1.159 albertel 1303: my $status=$Apache::inputtags::status['-1'];
1304: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1305: $target eq 'tex') {
1.249 albertel 1306: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1307: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1308: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1309: &Apache::inputtags::grade;
1.324 albertel 1310: } elsif ($status eq 'NEEDS_CHECKIN') {
1311: # no need to grade, and don't want to hide data
1.249 albertel 1312: } else {
1313: # move any submission data to .hidden
1314: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1315: }
1.159 albertel 1316: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1317: $Apache::inputtags::part eq '0' &&
1.252 albertel 1318: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1319: # if part is zero, no <part>s existed, so we need show the current
1320: # grading status
1321: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1322: $result.= $gradestatus;
1323: }
1324: if (
1.284 albertel 1325: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1326: ($target eq 'answer') || ($target eq 'tex')
1327: ) {
1.227 albertel 1328: if ($target ne 'tex' &&
1.284 albertel 1329: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1330: $result.="</form>";
1.159 albertel 1331: }
1332: if ($target eq 'web') {
1.346 albertel 1333: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1334: } elsif ($target eq 'tex') {
1.178 sakharuk 1335: my $endminipage = '';
1.284 albertel 1336: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1337: $endminipage = '\end{minipage}';
1338: }
1.284 albertel 1339: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1340: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1341: } else {
1.262 sakharuk 1342: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1343: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1344: $result .= $endminipage.'\end{document} ';
1345: } else {
1.382 albertel 1346: $result .= $endminipage;
1.262 sakharuk 1347: }
1.159 albertel 1348: }
1349: }
1350: }
1.476 www 1351: if ($target eq 'web') {
1352: $result.=&Apache::functionplotresponse::init_script();
1353: }
1.159 albertel 1354: if ($target eq 'grade') {
1355: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1356: &finalize_storage();
1357: }
1.284 albertel 1358: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1359: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1360: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1361: # normally we get it from above, but in CSTR
1.172 albertel 1362: # we always show answer mode too.
1.159 albertel 1363: }
1364: } elsif ($target eq 'meta') {
1365: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1366: @Apache::inputtags::response=();
1.159 albertel 1367: $result=&Apache::response::mandatory_part_meta;
1368: }
1.215 albertel 1369: $result.=&Apache::response::meta_part_order();
1.258 albertel 1370: $result.=&Apache::response::meta_response_order();
1.159 albertel 1371: } elsif ($target eq 'edit') {
1372: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1373: $result .= &problem_edit_footer();
1.320 albertel 1374: } elsif ($target eq 'modified') {
1375: $result .= $token->[2];
1.159 albertel 1376: }
1.155 albertel 1377:
1.284 albertel 1378: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1379: &Apache::inputtags::check_for_duplicate_ids();
1380: }
1.204 albertel 1381:
1382: &reset_problem_globals('problem');
1.159 albertel 1383:
1384: return $result;
1.48 albertel 1385: }
1386:
1.108 albertel 1387:
1.48 albertel 1388: sub start_library {
1.159 albertel 1389: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1390: my ($result,$form_tag_start);
1.371 albertel 1391: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1392: &init_problem_globals('library');
1393: $Apache::lonhomework::type='problem';
1394: }
1.159 albertel 1395: if ($target eq 'edit') {
1.343 albertel 1396: ($result,$form_tag_start)=
1397: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1398: 'Edit');
1399: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1400: my $temp=&Apache::edit::insertlist($target,$token);
1401: $result.=$temp;
1402: } elsif ($target eq 'modified') {
1403: $result=$token->[4];
1.340 albertel 1404: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1405: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1406: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1407: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1408: ($result,$form_tag_start)=
1409: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1410: $name);
1.479 raeburn 1411: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1412: $result.=" \n $form_tag_start".
1.159 albertel 1413: '<input type="hidden" name="submitted" value="yes" />';
1414: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1415: if ($Apache::lonhomework::type eq 'practice') {
1416: $result.= '<input type="submit" name="resetdata" '.
1417: 'value="'.&mt('New Problem Variation').'" />'.
1418: &practice_problem_header().'<hr />';
1419: }
1.159 albertel 1420: }
1421: return $result;
1.48 albertel 1422: }
1423:
1424: sub end_library {
1.159 albertel 1425: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1426: my $result='';
1427: if ($target eq 'edit') {
1428: $result=&problem_edit_footer();
1.371 albertel 1429: } elsif ($target eq 'web'
1430: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1431: && $env{'request.state'} eq "construct") {
1.349 albertel 1432: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1433: }
1.371 albertel 1434: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1435: &reset_problem_globals('library');
1436: }
1.159 albertel 1437: return $result;
1.197 www 1438: }
1439:
1440: sub start_definetag {
1.326 albertel 1441: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1442:
1443: my $result;
1444:
1445: my $name = $token->[2]->{'name'};
1.326 albertel 1446: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1447: if ($target eq 'web') {
1448: if ($name=~/^\//) {
1449: $result=
1450: '<br /><table class="LC_sty_end"><tr><th>'.
1451: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1452: } else {
1453: $result=
1454: '<br /><table class="LC_sty_begin"><tr><th>'.
1455: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1456: }
1457: $skip = &HTML::Entities::encode($skip, '<>&"');
1458: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1459: }
1460: return $result;
1461: }
1462:
1463: sub end_definetag {
1464: return '';
1.1 albertel 1465: }
1466:
1467: sub start_block {
1.201 albertel 1468: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1469:
1470: my $result;
1.1 albertel 1471:
1.339 albertel 1472: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1473: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1474: my $code = $token->[2]->{'condition'};
1.385 albertel 1475: if (defined($code) && $code ne '') {
1.137 albertel 1476: if (!$Apache::lonxml::default_homework_loaded) {
1477: &Apache::lonxml::default_homework_load($safeeval);
1478: }
1.131 albertel 1479: $result = &Apache::run::run($code,$safeeval);
1480: &Apache::lonxml::debug("block :$code: returned :$result:");
1481: } else {
1482: $result='1';
1483: }
1484: if ( ! $result ) {
1.201 albertel 1485: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1486: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1487: }
1488: $result='';
1489: } elsif ($target eq 'edit') {
1490: $result .=&Apache::edit::tag_start($target,$token);
1491: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1492: $token,40);
1493: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1494: } elsif ($target eq 'modified') {
1495: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1496: $safeeval,'condition');
1497: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1498: }
1.131 albertel 1499: return $result;
1.1 albertel 1500: }
1501:
1502: sub end_block {
1.167 www 1503: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1504: my $result;
1505: if ($target eq "edit") {
1506: $result.= &Apache::edit::tag_end($target,$token,'');
1507: }
1508: return $result;
1509: }
1510:
1511: sub start_languageblock {
1.201 albertel 1512: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1513:
1514: my $result;
1515:
1.339 albertel 1516: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1517: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1518: my $include = $token->[2]->{'include'};
1519: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1520: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1521: # This should not even happen, since we should at least have the server language
1.398 www 1522: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1523: # Now loop over all languages in order of preference
1524: foreach my $preferred_language (@preferred_languages) {
1.394 www 1525: # If the languageblock has no arguments, show the contents
1.399 www 1526: $result=1;
1527: my $found=0;
1.394 www 1528: # Do we have an include argument?
1.398 www 1529: if ($include) {
1.394 www 1530: # If include is specified, by default, don't render the block
1.399 www 1531: $result=0;
1.398 www 1532: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1533: # ... but if my preferred language is included, render it
1.398 www 1534: if ($included_language eq $preferred_language) {
1.399 www 1535: $result=1;
1536: $found=1;
1.398 www 1537: }
1538: }
1539: }
1.394 www 1540: # Do we have an exclude argument?
1.398 www 1541: if ($exclude) {
1.399 www 1542: $result=1;
1.398 www 1543: foreach my $excluded_language (split(/\,/,$exclude)) {
1544: if ($excluded_language eq $preferred_language) {
1.399 www 1545: $result=0;
1546: $found=1;
1.398 www 1547: }
1548: }
1549: }
1.399 www 1550: if ($found) { last; }
1.398 www 1551: }
1.201 albertel 1552: if ( ! $result ) {
1553: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1554: $style);
1555: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1556: }
1557: $result='';
1.167 www 1558: } elsif ($target eq 'edit') {
1559: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1560: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1561: $token,40);
1.211 albertel 1562: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1563: $token,40);
1564: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1565: } elsif ($target eq 'modified') {
1566: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1567: $safeeval,'include',
1568: 'exclude');
1.167 www 1569: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1570: }
1571: return $result;
1572: }
1573:
1574: sub end_languageblock {
1.170 www 1575: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1576: my $result;
1.201 albertel 1577: if ($target eq "edit") {
1.170 www 1578: $result.= &Apache::edit::tag_end($target,$token,'');
1579: }
1580: return $result;
1581: }
1582:
1.397 albertel 1583: {
1584: my %available_texts;
1585: sub start_translated {
1586: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1587: &Apache::lonxml::register('Apache::structuretags',('lang'));
1588: undef(%available_texts);
1589: }
1590:
1591: sub end_translated {
1592: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1593: my $result;
1594: #show the translation on viewable targets
1595: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1596: # or non-viewable targets, if it's embedded in something that
1597: # wants the output
1598: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1599: && &Apache::lonxml::in_redirection() ) ) {
1600: my @possibilities = keys(%available_texts);
1601: my $which =
1602: &Apache::loncommon::languages(\@possibilities) || 'default';
1603: $result = $available_texts{$which};
1604: }
1605: undef(%available_texts);
1606: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1607: return $result;
1608: }
1609:
1610:
1611: sub start_lang {
1612: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1613: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1614: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1615: &Apache::lonxml::startredirection();
1616: }
1617: return '';
1618: }
1619:
1620: sub end_lang {
1621: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1622: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1623: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1624: my $result = &Apache::lonxml::endredirection();
1625: my $which = &Apache::lonxml::get_param('which',$parstack,
1626: $safeeval);
1.431 raeburn 1627: if ($which=~/\w/) {
1628: $available_texts{$which} = $result;
1629: }
1630: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1631: $safeeval);
1632: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1633: if ($language=~/\w/) {
1634: $available_texts{$language} = $result;
1635: }
1.427 bisitz 1636: }
1637:
1.397 albertel 1638: }
1639: return '';
1640: }
1641: }
1642:
1.170 www 1643: sub start_instructorcomment {
1.201 albertel 1644: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1645:
1646: my $result;
1647:
1.339 albertel 1648: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1649: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 1650: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 1651: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1652: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1653: $parser,$style);
1.170 www 1654: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1655: }
1656: $result='';
1657: } elsif ($target eq 'edit') {
1658: $result .=&Apache::edit::tag_start($target,$token);
1659: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1660: }
1661: return $result;
1662: }
1663:
1664: sub end_instructorcomment {
1.159 albertel 1665: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1666: my $result;
1667: if ($target eq "edit") {
1668: $result.= &Apache::edit::tag_end($target,$token,'');
1669: }
1670: return $result;
1.4 tsai 1671: }
1672:
1673: sub start_while {
1.326 albertel 1674: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1675:
1.160 albertel 1676: my $result;
1.339 albertel 1677: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1678: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1679: my $code = $token->[2]->{'condition'};
1.4 tsai 1680:
1.160 albertel 1681: push( @Apache::structuretags::whileconds, $code);
1682: if (!$Apache::lonxml::default_homework_loaded) {
1683: &Apache::lonxml::default_homework_load($safeeval);
1684: }
1685: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1686: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1687: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1688: push( @Apache::structuretags::whileline, $token->[5]);
1689: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1690: if ( $result ) {
1691: &Apache::lonxml::newparser($parser,\$bodytext);
1692: }
1693: } elsif ($target eq 'edit') {
1694: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1695: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1696: $token,40);
1697: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1698: } elsif ($target eq 'modified') {
1699: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1700: $safeeval,'condition');
1701: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1702: }
1.160 albertel 1703: return $result;
1.4 tsai 1704: }
1705:
1706: sub end_while {
1.159 albertel 1707: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1708: my $result;
1709:
1.339 albertel 1710: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1711: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1712: my $code = pop(@Apache::structuretags::whileconds);
1713: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1714: my $line = pop(@Apache::structuretags::whileline);
1715: my $return = &Apache::run::run($code,$safeeval);
1716: my $starttime=time;
1717: my $error=0;
1718: while ($return) {
1719: if (time-$starttime >
1720: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1721: $return = 0; $error=1; next;
1.161 albertel 1722: }
1723: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1724: if ($target eq 'grade' || $target eq 'answer' ||
1725: $target eq 'analyze') {
1726: # grade/answer/analyze should produce no output but if we
1727: # are redirecting, the redirecter should know what to do
1728: # with the output
1729: if (!$Apache::lonxml::redirection) { undef($result); }
1730: }
1.161 albertel 1731: $return = &Apache::run::run($code,$safeeval);
1732: }
1733: if ($error) {
1.430 bisitz 1734: &Apache::lonxml::error('<pre>'.&mt('Code ran too long. It ran for more than').' '.$Apache::lonnet::perlvar{'lonScriptTimeout'}.' '.&mt('seconds occurred while running <while> on line').' '.$line.'</pre>');
1.160 albertel 1735: }
1736: } elsif ($target eq "edit") {
1737: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1738: }
1.160 albertel 1739: return $result;
1.1 albertel 1740: }
1.6 tsai 1741:
1.160 albertel 1742: # <randomlist show="1">
1.6 tsai 1743: # <tag1>..</tag1>
1744: # <tag2>..</tag2>
1745: # <tag3>..</tag3>
1.160 albertel 1746: # ...
1.6 tsai 1747: # </randomlist>
1748: sub start_randomlist {
1.326 albertel 1749: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1750: my $result;
1.339 albertel 1751: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1752: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1753: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1754: my $b_parser= HTML::LCParser->new(\$body);
1755: $b_parser->xml_mode(1);
1756: $b_parser->marked_sections(1);
1.159 albertel 1757: my $b_tok;
1758: my @randomlist;
1759: my $list_item;
1760: while($b_tok = $b_parser->get_token() ) {
1761: if($b_tok->[0] eq 'S') { # start tag
1762: # get content of the tag until matching end tag
1763: # get all text upto the matching tag
1764: # and push the content into @randomlist
1765: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1766: $b_parser);
1767: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1768: push(@randomlist,$list_item);
1769: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1770: # $list_item</b>";
1771: }
1772: if($b_tok->[0] eq 'T') { # text
1773: # what to do with text in between tags?
1774: # print "<b>TEXT $b_tok->[1]</b><br />";
1775: }
1776: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1777: # print "<b>END-TAG $b_tok->[1]</b><br />";
1778: # }
1779: }
1.303 albertel 1780: if (@randomlist) {
1781: my @idx_arr = (0 .. $#randomlist);
1782: &Apache::structuretags::shuffle(\@idx_arr);
1783: my $bodytext = '';
1784: my $show=$#randomlist;
1785: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1786: $showarg--;
1787: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1788: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1789: my @currlist;
1790: my $part = $Apache::inputtags::part;
1791: if ($part ne '') {
1792: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1793: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1794: if (!(grep(/^\Q$part\E$/,@currlist))) {
1795: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1796: }
1797: } else {
1798: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1799: }
1800: }
1801: }
1.303 albertel 1802: for(0 .. $show) {
1803: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1804: }
1805: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1806: }
1807: } elsif ($target eq 'edit' ) {
1808: $result .=&Apache::edit::tag_start($target,$token);
1809: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1810: $token,5);
1811: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1812: } elsif ($target eq 'modified' ) {
1813: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1814: $safeeval,'show');
1815: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1816: }
1817: return $result;
1.7 tsai 1818: }
1819:
1820: sub shuffle {
1821: my $a=shift;
1822: my $i;
1.303 albertel 1823: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1824: &Apache::response::pushrandomnumber();
1.159 albertel 1825: for($i=@$a;--$i;) {
1826: my $j=int(&Math::Random::random_uniform() * ($i+1));
1827: next if $i == $j;
1828: @$a[$i,$j] = @$a[$j,$i];
1829: }
1.251 albertel 1830: &Apache::response::poprandomnumber();
1.7 tsai 1831: }
1.6 tsai 1832: }
1833:
1834: sub end_randomlist {
1.159 albertel 1835: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1836: my $result;
1837: if ($target eq 'edit' ) {
1838: $result=&Apache::edit::tag_end($target,$token,
1839: 'End Randomly Parsed Block');
1840: }
1841: return $result;
1.6 tsai 1842: }
1843:
1.283 albertel 1844: sub ordered_show_check {
1845: my $last_part=$Apache::inputtags::partlist[-2];
1846: my $in_order=
1847: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1848: my $in_order_show=1;
1849: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1850: $in_order_show=&Apache::response::check_status($last_part);
1851: }
1852: return $in_order_show;
1853: }
1854:
1.469 www 1855:
1856: sub start_startpartmarker {
1857: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1858: my $result='';
1859: if ($target eq 'edit') {
1860: $result=&Apache::edit::tag_start($target,$token);
1861: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
1862: $result.=&Apache::edit::end_table();
1863:
1864: }
1865: return $result;
1866: }
1867:
1868: sub end_startpartmarker {
1869: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1870: my @result;
1871: if ($target eq 'edit') { $result[1]='no'; }
1872: return @result;
1873: }
1874:
1875: sub start_endpartmarker {
1876: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1877: my $result='';
1878: if ($target eq 'edit') {
1879: $result=&Apache::edit::tag_start($target,$token);
1880: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
1881: $result.=&Apache::edit::end_table();
1882:
1883: }
1884: return $result;
1885: }
1886:
1887: sub end_endpartmarker {
1888: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1889: my @result;
1890: if ($target eq 'edit') { $result[1]='no'; }
1891: return @result;
1892: }
1893:
1894:
1895:
1896:
1897:
1.11 albertel 1898: sub start_part {
1.326 albertel 1899: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1900: if (!$Apache::lonxml::metamode) {
1901: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1902: # duedates.
1903: }
1.159 albertel 1904: my $result='';
1.386 albertel 1905: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1906: $Apache::inputtags::part=$id;
1.177 albertel 1907: push(@Apache::inputtags::partlist,$id);
1908: @Apache::inputtags::response=();
1.159 albertel 1909: @Apache::inputtags::previous=();
1910: @Apache::inputtags::previous_version=();
1.405 albertel 1911: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1912: &Apache::response::reset_params();
1913:
1.159 albertel 1914: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1915: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1916: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1917: my $in_order_show=&ordered_show_check();
1.214 albertel 1918: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1919: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1920: &Apache::run::run($expression,$safeeval);
1.159 albertel 1921:
1922: if ($target eq 'meta') {
1.224 www 1923: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1924: return &Apache::response::mandatory_part_meta.
1925: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1926: } elsif ($target eq 'web' || $target eq 'grade' ||
1927: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1928: if ($hidden || !$in_order_show) {
1.326 albertel 1929: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1930: } else {
1931: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1932: push (@Apache::inputtags::status,$status);
1933: my $expression='$external::datestatus="'.$status.'";';
1934: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1935: &Apache::run::run($expression,$safeeval);
1.284 albertel 1936: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1937: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1938: }
1.216 albertel 1939: if (( $status eq 'CLOSED' ) ||
1940: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1941: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1942: ( $status eq 'BANNED') ||
1943: ( $status eq 'UNAVAILABLE') ||
1944: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1945: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1946: $style);
1.159 albertel 1947: if ( $target eq "web" ) {
1.211 albertel 1948: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1949: } elsif ( $target eq 'tex' ) {
1.284 albertel 1950: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1951: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1952: } else {
1.211 albertel 1953: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1954: }
1.159 albertel 1955: }
1956: } else {
1957: if ($target eq 'tex') {
1.284 albertel 1958: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1959: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1960: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1961: } else {
1962: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1963: }
1.195 sakharuk 1964: }
1.159 albertel 1965: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1966: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1967: my @allkeys = split /,/,$allkeys;
1968: my $allow_print_points = 0;
1969: foreach my $partial_key (@allkeys) {
1.230 albertel 1970: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1971: if ($1 ne '0') {$allow_print_points=1;}
1972: }
1973: }
1.275 albertel 1974: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1975: if (defined($maxtries) && $maxtries < 0) {
1976: $allow_print_points=0;
1977: }
1.302 albertel 1978: if (lc($env{'course.'.$env{'request.course.id'}.
1979: '.disableexampointprint'}) eq 'yes') {
1980: $allow_print_points=0;
1981: }
1.463 foxr 1982: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1983: $result .= '\vskip 10mm\fbox{\textit{'.$weight.' pt}}';
1984:
1985: }
1.233 www 1986: } elsif ($target eq 'web') {
1.479 raeburn 1987: if ($status eq 'CAN_ANSWER') {
1988: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1989: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
1990: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
1991: my $num = scalar(@Apache::inputtags::partlist)-1;
1992: if ($probrandomize eq 'randomizetry') {
1993: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
1994: $result .= &randomizetry_part_header($problemstatus,'none',$num);
1995: } else {
1996: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1997: if ($probrandtries ne $reqtries) {
1998: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
1999: }
2000: }
2001: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2002: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2003: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2004: }
2005: }
1.475 raeburn 2006: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2007: }
2008: }
2009: }
2010: } elsif ($target eq 'edit') {
2011: $result.=&Apache::edit::tag_start($target,$token);
2012: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2013: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2014: ' '.
2015: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2016: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2017: } elsif ($target eq 'modified') {
2018: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2019: $safeeval,'id','display');
1.159 albertel 2020: if ($constructtag) {
1.225 albertel 2021: #limiting ids to only letters numbers, and space
1.224 www 2022: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2023: $result = &Apache::edit::rebuild_tag($token);
2024: }
2025: }
2026: return $result;
1.11 albertel 2027: }
2028:
2029: sub end_part {
1.159 albertel 2030: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2031: &Apache::lonxml::debug("in end_part $target ");
2032: my $status=$Apache::inputtags::status['-1'];
2033: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2034: my $in_order_show=&ordered_show_check();
1.321 albertel 2035: my $result;
2036: if (!$Apache::lonxml::metamode) {
2037: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2038: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2039: }
1.312 albertel 2040: if ($target eq 'grade') {
1.249 albertel 2041: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2042: !$hidden && $in_order_show) {
1.311 foxr 2043: $result.=&Apache::inputtags::grade;
1.249 albertel 2044: } else {
2045: # move any submission data to .hidden
2046: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2047: }
1.283 albertel 2048: } elsif (($target eq 'web' || $target eq 'tex') &&
2049: !$hidden && $in_order_show) {
1.159 albertel 2050: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2051: $target);
1.212 albertel 2052: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
2053: $gradestatus='';
2054: }
1.311 foxr 2055: $result.=$gradestatus;
1.265 sakharuk 2056: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2057: } elsif ($target eq 'edit') {
1.311 foxr 2058: $result.=&Apache::edit::end_table();
1.322 albertel 2059: } elsif ($target eq 'modified') {
2060: $result .= $token->[2];
1.159 albertel 2061: }
2062: pop @Apache::inputtags::status;
2063: $Apache::inputtags::part='';
1.295 albertel 2064: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2065: return $result;
1.11 albertel 2066: }
1.1 albertel 2067:
1.25 albertel 2068: sub start_preduedate {
1.326 albertel 2069: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2070: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2071: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2072: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2073: if (!$Apache::lonhomework::scantronmode &&
2074: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2075: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2076: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2077: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2078: }
1.24 albertel 2079: }
1.159 albertel 2080: return '';
1.24 albertel 2081: }
2082:
1.25 albertel 2083: sub end_preduedate {
1.159 albertel 2084: return '';
1.24 albertel 2085: }
2086:
1.369 foxr 2087: # In all the modes where <postanswerdate> text is
2088: # displayable, all we do is eat up the text between the start/stop
2089: # tags if the conditions are not right to display it.
1.25 albertel 2090: sub start_postanswerdate {
1.326 albertel 2091: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2092: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2093: &Apache::lonnet::allowed('pav',
2094: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2095: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2096: $target eq 'tex' ) {
1.300 albertel 2097: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2098: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2099: (($target eq 'tex') && !$pav)) {
1.326 albertel 2100: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2101: }
2102: }
2103: return '';
1.24 albertel 2104: }
2105:
1.25 albertel 2106: sub end_postanswerdate {
1.159 albertel 2107: return '';
1.24 albertel 2108: }
2109:
1.25 albertel 2110: sub start_notsolved {
1.326 albertel 2111: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2112: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2113: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2114: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2115: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2116: if ($gradestatus =~ /^correct/ &&
2117: &Apache::response::show_answer()) {
1.159 albertel 2118: &Apache::lonxml::debug("skipping");
1.326 albertel 2119: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2120: }
1.24 albertel 2121: }
1.159 albertel 2122: return '';
1.24 albertel 2123: }
2124:
1.25 albertel 2125: sub end_notsolved {
1.159 albertel 2126: return '';
1.24 albertel 2127: }
2128:
2129: sub start_solved {
1.326 albertel 2130: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2131: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2132: $target eq 'tex') {
2133: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2134: if ($gradestatus !~ /^correct/ ||
2135: !&Apache::response::show_answer()) {
1.326 albertel 2136: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2137: }
1.24 albertel 2138: }
1.159 albertel 2139: return '';
1.24 albertel 2140: }
2141:
2142: sub end_solved {
1.248 albertel 2143: return '';
2144: }
2145:
2146: sub start_problemtype {
1.326 albertel 2147: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2148: my $result;
1.339 albertel 2149: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2150: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2151: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2152: if (!defined($mode)) { $mode='show'; }
2153: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2154: my $found=0;
2155: foreach my $type (split(',',$for)) {
2156: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2157: }
2158: if ($mode eq 'show' && !$found) {
1.326 albertel 2159: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2160: }
2161: if ($mode eq 'hide' && $found) {
1.326 albertel 2162: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2163: }
2164: } elsif ($target eq 'edit') {
2165: $result .=&Apache::edit::tag_start($target,$token);
2166: $result.=&Apache::edit::select_arg('Mode:','mode',
2167: [['show','Show'],
2168: ['hide','Hide']]
2169: ,$token);
2170: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
2171: [ ['exam','Exam/Quiz Problem'],
2172: ['survey','Survey'],
1.465 raeburn 2173: ['surveycred','Survey (with credit)'],
2174: ['anonsurvey','Anonymous Survey'],
2175: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2176: ['problem','Homework Problem'],
1.479 raeburn 2177: ['practice','Practice Problem'],
2178: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2179: ,$token);
2180: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2181: } elsif ($target eq 'modified') {
2182: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2183: $safeeval,'mode','for');
2184: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2185: }
2186: return $result;
2187: }
2188:
2189: sub end_problemtype {
1.159 albertel 2190: return '';
1.24 albertel 2191: }
1.34 albertel 2192:
2193: sub start_startouttext {
1.159 albertel 2194: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2195: my @result=(''.'');
2196: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2197:
2198: my $nesting =
2199: &Apache::lonxml::set_state('outtext',
2200: &Apache::lonxml::get_state('outtext')+1);
2201: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2202: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2203: }
1.159 albertel 2204: return (@result);
1.34 albertel 2205: }
1.159 albertel 2206:
1.34 albertel 2207: sub end_startouttext {
1.326 albertel 2208: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2209: my $result='';
2210: my $text='';
2211: if ($target eq 'edit') {
1.424 foxr 2212: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2213: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2214: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2215: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2216: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2217: .'</span></td>'
2218: .'<td align="left"><span id="math_'.$areaid.'" />'
2219: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
2220: .'<span></td>'
2221: .'<td>'
2222: .&Apache::edit::insertlist($target,$token)
2223: .'</td>'
2224: .'<td align="right" valign="top">' .
2225: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2226: &Apache::edit::end_row().
1.362 albertel 2227: &Apache::edit::start_spanning_row()."\n".
1.255 www 2228: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2229: }
2230: if ($target eq 'modified') {
1.219 albertel 2231: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2232: }
2233: if ($target eq 'tex') {
2234: $result .= '\noindent ';
2235: }
2236: return $result;
1.34 albertel 2237: }
1.159 albertel 2238:
1.34 albertel 2239: sub start_endouttext {
1.159 albertel 2240: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2241: my $result='';
2242: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2243: if ($target eq "modified") {
2244: $result='<endouttext />'.
1.377 albertel 2245: &Apache::edit::handle_insertafter('startouttext');
2246: }
1.404 albertel 2247:
2248: my $nesting =
2249: &Apache::lonxml::set_state('outtext',
2250: &Apache::lonxml::get_state('outtext')-1);
2251: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2252: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2253: &Apache::lonxml::set_state('outtext', 0);
2254: }
1.159 albertel 2255: return $result;
1.34 albertel 2256: }
1.159 albertel 2257:
1.34 albertel 2258: sub end_endouttext {
1.159 albertel 2259: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2260: my @result=('','');
2261: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2262: return (@result);
1.34 albertel 2263: }
1.159 albertel 2264:
1.45 albertel 2265: sub delete_startouttext {
1.326 albertel 2266: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2267: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2268: my $text=$$parser['-1']->get_text("/endouttext");
2269: my $ntoken=$$parser['-1']->get_token();
2270: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2271: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2272: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2273: # they did the last time round
2274: &Apache::lonxml::increasedepth($ntoken);
2275: &Apache::lonxml::decreasedepth($ntoken);
2276: return 1;
1.193 www 2277: }
2278:
2279: sub start_simpleeditbutton {
2280: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2281: my $result='';
1.284 albertel 2282: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2283: ($target eq 'web') &&
1.330 albertel 2284: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2285: my $url=$env{'request.noversionuri'};
1.193 www 2286: $url=~s/\?.*$//;
1.367 albertel 2287: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2288: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2289: # $result='<p class="LC_warning">'
2290: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2291: # .&Apache::loncommon::help_open_topic('Caching')
2292: # .'</p>';
1.486 www 2293: $result.=&Apache::loncommon::head_subbox(
2294: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 2295: .&Apache::lonhtmlcommon::add_item_funclist(
2296: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2297: .&mt('Edit').'</a>')
1.486 www 2298: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 2299:
1.193 www 2300: }
2301: return $result;
2302: }
2303:
2304: sub end_simpleeditbutton {
2305: return '';
1.45 albertel 2306: }
1.34 albertel 2307:
1.428 raeburn 2308: sub practice_problem_header {
2309: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2310: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2311: '</span>';
2312: }
2313:
1.479 raeburn 2314: sub randomizetry_problem_header {
2315: my ($problemstatus,$reqtries) = @_;
2316: my ($header,$text);
2317: if ($reqtries > 1) {
2318: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
2319: if (($problemstatus eq 'no') ||
2320: ($problemstatus eq 'no_feedback_ever')) {
2321: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2322: } else {
2323: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2324: }
2325: } else {
2326: $header = &mt('New Problem Variation Each Try');
2327: if (($problemstatus eq 'no') ||
2328: ($problemstatus eq 'no_feedback_ever')) {
2329: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
2330:
2331: } else {
2332: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
2333: }
2334: }
2335: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
2336: '<span class="LC_info">'.$text.'</span><hr />';
2337: }
2338:
2339: sub randomizetry_part_header {
2340: my ($problemstatus,$reqtries,$num) = @_;
2341: my ($header,$text);
2342: if ($reqtries eq 'none') {
2343: $header = &mt('No Question Variation');
2344: $text = &mt('For this question there will no new variation after a try.');
2345: } elsif ($reqtries > 1) {
2346: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
2347: if (($problemstatus eq 'no') ||
2348: ($problemstatus eq 'no_feedback_ever')) {
2349: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2350: } else {
2351: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2352: }
2353: } else {
2354: $header = &mt('New Question Variation For Each Try');
2355: if (($problemstatus eq 'no') ||
2356: ($problemstatus eq 'no_feedback_ever')) {
2357: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
2358: } else {
2359: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
2360: }
2361: }
2362: my $output;
2363: if ($num > 1) {
2364: $output .= '<hr />';
2365: }
2366: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
2367: '<span class="LC_info">'.$text.'</span><br /><br />';
2368: return $output;
2369: }
2370:
1.1 albertel 2371: 1;
2372: __END__
1.435 jms 2373:
2374: =pod
2375:
2376: =back
2377:
2378: =cut
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