Annotation of loncom/homework/structuretags.pm, revision 1.427
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.427 ! bisitz 4: # $Id: structuretags.pm,v 1.426 2008/08/04 22:42:11 felicia Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.133 sakharuk 30:
1.1 albertel 31: package Apache::structuretags;
32:
33: use strict;
34: use Apache::lonnet;
1.101 sakharuk 35: use Apache::File();
1.147 www 36: use Apache::lonmenu;
1.210 albertel 37: use Apache::lonlocal;
1.231 sakharuk 38: use Apache::lonxml;
1.338 albertel 39: use Apache::lonenc();
1.267 albertel 40: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 41: use lib '/home/httpd/lib/perl/';
42: use LONCAPA;
43:
1.78 harris41 44: BEGIN {
1.397 albertel 45: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));
1.10 albertel 46: }
47:
48: sub start_web {
1.326 albertel 49: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 50: if ($target ne 'edit' && $target ne 'modified') {
51: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
52: if ($target eq 'web' || $target eq 'webgrade') {
53: return $bodytext;
54: }
55: } elsif ($target eq "edit" ) {
56: my $bodytext =
57: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
58: my $result = &Apache::edit::tag_start($target,$token);
59: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
60: return $result;
61: } elsif ( $target eq "modified" ) {
62: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 63: }
64: return '';
1.10 albertel 65: }
66:
67: sub end_web {
1.44 ng 68: return '';
1.10 albertel 69: }
70:
71: sub start_tex {
1.326 albertel 72: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 73: my $result='';
1.383 albertel 74: if ($target ne 'edit' && $target ne 'modified') {
75: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
76: if ($target eq 'tex') {
77: return $bodytext.' ';
78: }
79: } elsif ($target eq "edit" ) {
80: my $bodytext =
81: &Apache::lonxml::get_all_text_unbalanced("/tex",$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 $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 87: }
1.198 sakharuk 88: return $result;;
1.10 albertel 89: }
90:
91: sub end_tex {
1.44 ng 92: return '';
1.9 albertel 93: }
94:
1.400 albertel 95: sub homework_js {
96: return &Apache::loncommon::resize_textarea_js().
1.416 raeburn 97: &setmode_javascript().
1.400 albertel 98: <<'JS';
99: <script type="text/javascript">
100: function setSubmittedPart (part) {
101: this.document.lonhomework.submitted.value="part_"+part;
102: }
103:
104: function image_response_click (which, e) {
105: init_geometry();
106: if (!e) { e = window.event; } //IE
107: var input_element = document.lonhomework.elements[which];
1.401 albertel 108: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 109: var token = token_element.value;
1.401 albertel 110: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 111: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
112: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
113: var click = x+':'+y;
114: input_element.value = click;
115: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
116: }
1.416 raeburn 117:
1.400 albertel 118: </script>
119: JS
120: }
121:
1.416 raeburn 122: sub setmode_javascript {
123: return <<"ENDSCRIPT";
124: <script type="text/javascript">
125: function setmode(form,probmode) {
126: form.problemmode.value = probmode;
127: form.submit();
128: }
129: </script>
130: ENDSCRIPT
131: }
132:
1.48 albertel 133: sub page_start {
1.345 albertel 134: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
135: $extra_head)=@_;
1.159 albertel 136: my %found;
1.207 albertel 137: foreach my $taginside (@$tagstack) {
1.159 albertel 138: foreach my $taglookedfor ('html','body','form') {
139: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
140: }
141: }
142:
1.343 albertel 143: if ($target eq 'tex') {
144: return
145: &Apache::londefdef::start_html($target,$token,$tagstack,
146: $parstack,$parser,$safeeval);
147: }
148:
1.400 albertel 149: $extra_head .= &homework_js();
1.374 albertel 150:
1.425 raeburn 151: unless ($env{'environment.wysiwygeditor'} eq 'on') {
152: $extra_head .= &Apache::lonhtmlcommon::dragmath_js();
153: }
154:
1.344 albertel 155: my %body_args;
156: if (defined($found{'html'})) {
157: $body_args{'skip_phases'}{'head'}=1;
158: } else {
1.343 albertel 159:
1.345 albertel 160: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 161:
1.379 albertel 162: $extra_head .= &Apache::londefdef::generate_css_links();
163:
1.384 albertel 164: if ($env{'request.state'} eq 'construct') {
1.343 albertel 165: $extra_head.=&Apache::edit::js_change_detection().
166: "<script type=\"text/javascript\">\n".
167: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
168: &Apache::loncommon::browser_and_searcher_javascript().
169: "\n</script>\n";
170: }
1.159 albertel 171: }
1.343 albertel 172:
1.344 albertel 173: if (defined($found{'body'})) {
174: $body_args{'skip_phases'}{'body'}=1;
175: } elsif (!defined($found{'body'})
176: && $env{'request.state'} eq 'construct') {
1.343 albertel 177: if ($target eq 'web' || $target eq 'edit') {
1.402 albertel 178: if ($env{'environment.remote'} ne 'off') {
179: $body_args{'only_body'} = 1;
180: }
1.297 albertel 181: }
1.272 albertel 182: } elsif (!defined($found{'body'})) {
1.343 albertel 183: my %add_entries;
1.159 albertel 184: my $background=&Apache::lonxml::get_param('background',$parstack,
185: $safeeval);
1.343 albertel 186: if ($background ne '' ) {
187: $add_entries{'background'} = $background;
188: }
1.344 albertel 189:
1.290 albertel 190: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
191: $safeeval);
1.344 albertel 192: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
193:
194: $body_args{'bgcolor'} = $bgcolor;
195: $body_args{'no_title'} = 1;
196: $body_args{'force_register'} = 1;
197: $body_args{'add_entries'} = \%add_entries;
1.391 albertel 198: if ($env{'environment.remote'} eq 'off'
199: && $env{'request.state'} eq 'construct') {
200: $body_args{'only_body'} = 1;
201: }
1.344 albertel 202: }
1.365 albertel 203: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 204: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
205: \%body_args);
206:
207: if (!defined($found{'body'})
208: && $env{'request.state'} ne 'construct'
209: && ($target eq 'web' || $target eq 'webgrade')) {
210:
1.367 albertel 211: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
1.344 albertel 212: if ($symb eq '' && !$publicuser) {
213: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
214: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
215: $page_start .= $help;
1.159 albertel 216: }
1.344 albertel 217: }
218:
1.409 albertel 219: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 220: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 221: }
1.344 albertel 222:
1.159 albertel 223: my $form_tag_start;
224: if (!defined($found{'form'})) {
1.337 albertel 225: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.338 albertel 226: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.327 albertel 227: $form_tag_start.=$uri.'" ';
228: if ($target eq 'edit') {
229: $form_tag_start.=&Apache::edit::form_change_detection();
230: }
1.368 albertel 231: $form_tag_start.='>'."\n";
1.355 albertel 232:
233: my $symb=&Apache::lonnet::symbread();
234: if ($symb =~ /\S/) {
235: $symb=
236: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
237: $form_tag_start.=
1.368 albertel 238: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 239: }
1.159 albertel 240: }
1.343 albertel 241: return ($page_start,$form_tag_start);
1.105 albertel 242: }
243:
1.141 matthew 244: #use Time::HiRes();
1.105 albertel 245: sub get_resource_name {
1.159 albertel 246: my ($parstack,$safeeval)=@_;
1.388 foxr 247: my $name;
1.204 albertel 248: if (defined($Apache::lonhomework::name)) {
1.388 foxr 249: $name = $Apache::lonhomework::name;
250: } else {
251: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 252: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 253: if ($name eq '') {
254: $name=&Apache::lonnet::EXT('resource.title');
255: if ($name eq 'con_lost') { $name = ''; }
256: }
257: if ($name!~/\S+/) {
258: $name=$env{'request.uri'};
259: $name=~s-.*/([^/]+)$-$1-;
260: }
261: # The name has had html tags escaped:
262:
263: $name=~s/</</gs;
264: $name=~s/>/>/gs;
265:
266: $Apache::lonhomework::name=$name;
1.204 albertel 267: }
1.159 albertel 268: return $name;
1.105 albertel 269: }
270:
271: sub setup_rndseed {
1.159 albertel 272: my ($safeeval)=@_;
273: my $rndseed;
1.367 albertel 274: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 275: if ($env{'request.state'} eq "construct"
276: || $symb eq ''
277: || $Apache::lonhomework::type eq 'practice'
278: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 279: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 280: ['rndseed']);
1.284 albertel 281: $rndseed=$env{'form.rndseed'};
1.159 albertel 282: if (!$rndseed) {
1.162 albertel 283: $rndseed=$Apache::lonhomework::history{'rndseed'};
284: if (!$rndseed) {
285: $rndseed=time;
286: }
1.284 albertel 287: $env{'form.rndseed'}=$rndseed;
1.162 albertel 288: }
1.374 albertel 289: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
290: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 291: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 292: srand(time);
293: $rndseed=int(rand(2100000000));
1.284 albertel 294: $env{'form.rndseed'}=$rndseed;
295: delete($env{'form.resetdata'});
296: delete($env{'form.newrandomization'});
1.159 albertel 297: }
1.187 albertel 298: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 299: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 300: }
1.247 albertel 301: if ($Apache::lonhomework::history{'resource.CODE'}) {
302: $rndseed=&Apache::lonnet::rndseed();
303: }
1.221 albertel 304: if ($safeeval) {
305: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 306: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 307: }
1.159 albertel 308: }
309: return $rndseed;
1.105 albertel 310: }
311:
1.268 albertel 312: sub remember_problem_state {
313: return '
1.284 albertel 314: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
315: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
316: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 317: }
318:
1.423 www 319: sub problem_edit_buttons {
320: return '
1.408 albertel 321: <div class="LC_edit_problem_discards">
1.416 raeburn 322: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
1.423 www 323: ' onclick="javscript:setmode(this.form,'."'discard'".')" />
1.416 raeburn 324: <input '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'editxml'".')').' type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" />
1.407 albertel 325: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.408 albertel 326: </div>
327: <div class="LC_edit_problem_saves">
1.416 raeburn 328: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save and Edit').'" />
329: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.423 www 330: </div>';
331: }
332:
333: sub problem_edit_header {
334: return '<input type="hidden" name="submitted" value="edit" /><input type="hidden" name="problemmode" value="edit" />'.
335: &Apache::structuretags::remember_problem_state().'
336: <div class="LC_edit_problem_header">
337: <div class="LC_edit_problem_header_title">
338: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
339: </div>'.
340: &problem_edit_buttons().'
1.408 albertel 341: <hr class="LC_edit_problem_divide" />
1.409 albertel 342: '.&Apache::lonxml::message_location().'
1.408 albertel 343: </div>
344: '.
1.282 albertel 345: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 346: }
347:
348: sub problem_edit_footer {
1.412 albertel 349: return '</td></tr></table><br />
350: <div class="LC_edit_problem_footer">
1.423 www 351: <hr class="LC_edit_problem_divide" />'.
352: &problem_edit_buttons().'
1.412 albertel 353: <hr class="LC_edit_problem_divide" />
354: </div>
355: '.
356:
1.348 albertel 357: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 358: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 359: }
360:
1.235 albertel 361: sub option {
362: my ($value,$name) = @_;
363: my $result ="<option value='".$value."' ";
1.284 albertel 364: if ($env{'form.'.$name} eq $value) {
1.235 albertel 365: $result.=" selected='on' ";
366: }
367: $result.='>';
368: return $result;
369: }
370:
1.105 albertel 371: sub problem_web_to_edit_header {
1.159 albertel 372: my ($rndseed)=@_;
1.406 albertel 373: my $result .= '<div class="LC_edit_problem_header">';
374:
375: if (!$Apache::lonhomework::parsing_a_task) {
376: $result .=
377: '<div class="LC_edit_problem_header_title">'.
378: &mt('Problem Testing').
379: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
380: '</div>';
381: } else {
382: $result .=
383: '<div class="LC_edit_problem_header_title">'.
384: &mt('Task Testing').
385: '</div>';
386: }
387:
1.315 albertel 388: my $show_all_foils_text =
389: ($Apache::lonhomework::parsing_a_task) ?
390: &mt(' Show All Instances')
391: : &mt(' Show All Foils');
392:
1.406 albertel 393: my $show_all= '<span class="LC_nobreak"><label><input type="checkbox" name="showallfoils" ';
394: if (defined($env{'form.showallfoils'})) { $show_all.='checked="checked"'; }
395: $show_all.= ' />'.$show_all_foils_text.'</label></span>';
396:
397:
1.384 albertel 398:
1.406 albertel 399: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 400: if (!$Apache::lonhomework::parsing_a_task) {
401: $result.="
1.406 albertel 402: <div class='LC_edit_problem_header_row1'>
403: <span class=\"LC_nobreak\">
1.405 albertel 404: ".&mt("Problem Status:")."
1.235 albertel 405: <select name='problemstate'>
1.270 albertel 406: <option value=''></option>
1.235 albertel 407: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
408: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
409: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
410: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
411: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
412: </select>
1.406 albertel 413: </span>
414: <span class=\"LC_nobreak\">
1.405 albertel 415: ".&mt("Problem Type:")."
1.235 albertel 416: <select name='problemtype'>
1.270 albertel 417: <option value=''></option>
1.242 albertel 418: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
419: ".&option('problem','problemtype').&mt("Homework problem")."</option>
420: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 421: </select>
1.406 albertel 422: </span>
423: $show_all
424: </div>
425: <div class='LC_edit_problem_header_row2'>
426: <span class=\"LC_nobreak\">
1.405 albertel 427: ".&mt("Feedback Mode:")."
1.235 albertel 428: <select name='problemstatus'>
429: <option value=''></option>
1.242 albertel 430: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 431: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
432: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 433: </select>
1.406 albertel 434: </span>
435: ";
436:
1.376 albertel 437: } elsif ($Apache::lonhomework::parsing_a_task) {
438: $result.="
1.406 albertel 439: <div class='LC_edit_problem_header_row1'>
440: <span class=\"LC_nobreak\">
1.405 albertel 441: ".&mt("Problem Status:")."
1.376 albertel 442: <select name='problemstate'>
443: <option value=''></option>
444: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
445: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
446: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
447: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
448: </select>
1.406 albertel 449: </span>
450: $show_all
451: ";
452: }
453: $result.='
454: <span class="LC_nobreak">
455: '.&mt('Apply style file: ').'
456: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
457: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
458: </span>
1.422 www 459: </div>
460: <div class="LC_edit_problem_header_row1">'.
461: &Apache::lonxml::renderingoptions().'
1.406 albertel 462: </div>
463: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
464: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
465: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
466: </div>
467: <hr class="LC_edit_problem_divide" />
468: <div class="LC_edit_problem_header_randomize_row">
469: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
470: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
471: <input type="text" name="rndseed" size="10" value="'.
472: $rndseed.'"
473: onchange="javascript:document.lonhomework.changerandseed.click()" />';
474:
475: if (!$Apache::lonhomework::parsing_a_task) {
476: my $numtoanalyze=$env{'form.numtoanalyze'};
477: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 478: $result .= '<span class="LC_nobreak">'.
479: &mt('[_1] for [_2] versions.',
1.416 raeburn 480: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 481: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
482: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 483: $numtoanalyze.'" size="5" />').
484: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
485: '</span>';
486:
1.313 albertel 487: }
1.406 albertel 488:
489: $result.='
490: </div>
1.408 albertel 491: <div class="LC_edit_problem_header_edit_row">';
1.416 raeburn 492: $result.='<input type="hidden" name="problemmode" value="view" />';
493: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
494: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
495: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
496: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 497: $result.='
498: </div>
1.409 albertel 499: '.&Apache::lonxml::message_location().'
1.406 albertel 500: </div>';
1.159 albertel 501: return $result;
1.48 albertel 502: }
503:
1.65 albertel 504: sub initialize_storage {
1.357 albertel 505: my ($given_symb) = @_;
1.353 albertel 506: undef(%Apache::lonhomework::results);
507: undef(%Apache::lonhomework::history);
1.357 albertel 508: my ($symb,$courseid,$domain,$name) =
1.367 albertel 509: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 510:
511: # anonymous users (CODEd exams) have no data
512: if ($name eq 'anonymous'
513: && !defined($domain)) {
514: return;
515: }
516:
1.333 albertel 517: if ($env{'request.state'} eq 'construct'
518: || $symb eq ''
519: || $Apache::lonhomework::type eq 'practice') {
520:
521: my $namespace = $symb || $env{'request.uri'};
522: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 523: ($env{'form.resetdata'} eq &mt('New Problem Variation')
524: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 525: $env{'form.newrandomization'} eq &mt('New Randomization')) {
526: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
527: &Apache::lonxml::debug("Attempt reset");
528: }
1.159 albertel 529: %Apache::lonhomework::history=
1.333 albertel 530: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 531: my ($temp)=keys %Apache::lonhomework::history ;
532: &Apache::lonxml::debug("Return message of $temp");
533: } else {
534: %Apache::lonhomework::history=
535: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
536: }
1.353 albertel 537:
1.159 albertel 538: #ignore error conditions
1.67 albertel 539: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 540: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 541: }
542:
543: # -------------------------------------------------------------finalize_storage
544: # Stores away the result has to a student's environment
545: # checks form.grade_ for specific values, other wises stores
546: # to the running users environment
1.285 raeburn 547: # Will increment totals for attempts, students, and corrects
548: # if running user has student role.
1.65 albertel 549: sub finalize_storage {
1.357 albertel 550: my ($given_symb) = @_;
1.159 albertel 551: my $result;
1.289 albertel 552: if (%Apache::lonhomework::results) {
1.323 albertel 553: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
554: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 555: my ($symb,$courseid,$domain,$name) =
1.367 albertel 556: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 557: if ($env{'request.state'} eq 'construct'
558: || $symb eq ''
559: || $Apache::lonhomework::type eq 'practice') {
560: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 561: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 562: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 563: $namespace,'',$domain,$name);
1.159 albertel 564: &Apache::lonxml::debug('Construct Store return message:'.$result);
565: } else {
566: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
567: $symb,$courseid,$domain,$name);
568: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 569: if ($env{'request.role'} =~/^st/) {
570: &store_aggregates($symb,$courseid);
571: }
1.159 albertel 572: }
1.323 albertel 573: } else {
574: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 575: }
1.159 albertel 576: return $result;
1.65 albertel 577: }
578:
1.285 raeburn 579: # -------------------------------------------------------------store_aggregates
580: # Sends hash of values to be incremented in nohist_resourcetracker.db
581: # for the course. Increments total number of attempts, unique students
582: # and corrects for each part for an instance of a problem, as appropriate.
583: sub store_aggregates {
584: my ($symb,$courseid) = @_;
1.286 albertel 585: my %aggregate;
586: my @parts;
1.288 albertel 587: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
588: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 589: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 590: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 591: push(@parts, $1);
1.285 raeburn 592: }
593: }
1.286 albertel 594: foreach my $part (@parts) {
595: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
596: eq 'APPROX_ANS' ||
597: $Apache::lonhomework::results{'resource.'.$part.'.award'}
598: eq 'EXACT_ANS') {
1.287 albertel 599: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 600: }
1.286 albertel 601: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 602: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 603: } else {
1.293 albertel 604: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 605: if ($last_reset) {
1.293 albertel 606: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 607: $aggregate{$symb."\0".$part."\0users"} = 1;
608: }
609: }
1.285 raeburn 610: }
1.287 albertel 611: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 612: }
1.292 raeburn 613: if (keys (%aggregate) > 0) {
1.289 albertel 614: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 615: $cdomain,$cname);
616: }
617: }
1.289 albertel 618:
1.65 albertel 619: sub checkout_msg {
1.211 albertel 620: my %lt=&Apache::lonlocal::texthash(
621: 'resource'=>'The resource needs to be checked out',
622: '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.',
623: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
624: 'checkout'=>'Check out Exam for Viewing',
625: 'checkout?'=>'Check out Exam?');
1.352 albertel 626: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 627: return (<<ENDCHECKOUT);
1.211 albertel 628: <h2>$lt{'resource'}</h2>
629: <p>$lt{'id_expln'}</p>
630: <font color="red">
631: <p>$lt{'warning'}</p>
1.91 albertel 632: </font>
1.352 albertel 633: <form name="checkout" method="POST" action="$uri">
1.91 albertel 634: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 635: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 636: </form>
637: ENDCHECKOUT
638: }
639:
1.252 albertel 640: sub firstaccess_msg {
1.253 albertel 641: my ($time,$symb)=@_;
1.414 albertel 642: my $result;
643: my @interval=&Apache::lonnet::EXT("resource.0.interval");
644: if ($interval[1] eq 'map') {
645: my ($map)=&Apache::lonnet::decode_symb($symb);
646: my $foldertitle=&Apache::lonnet::gettitle($map);
647:
648: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 649: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
650: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
651: ,$foldertitle,$time)."</h2>";
1.414 albertel 652: } elsif ($interval[1] eq 'course') {
653: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 654: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
655: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
656: ,$course,$time)."</h2>";
1.414 albertel 657: } else {
658: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 659: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
660: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
661: ,$title,$time)."</h2>";
1.414 albertel 662: }
1.352 albertel 663: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 664: my $buttontext = &mt('Show Resource');
665: my $timertext = &mt('Start Timer?');
1.414 albertel 666: $result .= (<<ENDCHECKOUT);
1.352 albertel 667: <form name="markaccess" method="POST" action="$uri">
1.252 albertel 668: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 669: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 670: </form>
671: ENDCHECKOUT
1.414 albertel 672: return $result;
1.252 albertel 673: }
674:
1.204 albertel 675: sub init_problem_globals {
676: my ($type)=@_;
677: #initialize globals
1.308 foxr 678: # For problems, we start out in part 0 (outside a <part> tag).
679: # and part 0 is used to describe the main body of the <problem>
680: #
1.204 albertel 681: if ($type eq 'problem') {
682: $Apache::inputtags::part='0';
683: @Apache::inputtags::partlist=('0');
1.405 albertel 684: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 685: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 686:
1.266 albertel 687: } elsif ($type eq 'library') {
1.204 albertel 688: $Apache::inputtags::part='';
689: @Apache::inputtags::partlist=();
1.405 albertel 690: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 691: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 692:
1.304 albertel 693: } elsif ($type eq 'Task') {
694: $Apache::inputtags::part='0';
695: @Apache::inputtags::partlist=('0');
1.405 albertel 696: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 697: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 698: }
699: @Apache::inputtags::responselist = ();
700: @Apache::inputtags::importlist = ();
701: @Apache::inputtags::previous=();
702: @Apache::inputtags::previous_version=();
703: $Apache::structuretags::printanswer='No';
704: @Apache::structuretags::whileconds=();
705: @Apache::structuretags::whilebody=();
706: @Apache::structuretags::whileline=();
707: $Apache::lonhomework::scantronmode=0;
708: undef($Apache::lonhomework::name);
1.358 albertel 709: undef($Apache::lonhomework::default_type);
710: undef($Apache::lonhomework::type);
1.204 albertel 711: }
712:
713: sub reset_problem_globals {
714: my ($type)=@_;
715: undef(%Apache::lonhomework::history);
716: undef(%Apache::lonhomework::results);
717: undef($Apache::inputtags::part);
1.208 albertel 718: #don't undef this, lonhomework.pm takes care of this, we use this to
719: #detect if we try to do 2 problems in one file
720: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 721: undef($Apache::lonhomework::name);
1.358 albertel 722: undef($Apache::lonhomework::default_type);
723: undef($Apache::lonhomework::type);
724: undef($Apache::lonhomework::scantronmode);
725: undef($Apache::lonhomework::ignore_response_errors);
1.405 albertel 726: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 727: }
728:
1.241 albertel 729: sub set_problem_state {
1.240 albertel 730: my ($part)=@_;
1.284 albertel 731: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 732: $Apache::lonhomework::history{"resource.$part.solved"}=
733: 'correct_by_student';
734: }
735: }
736:
1.241 albertel 737: sub get_problem_status {
738: my ($part)=@_;
1.267 albertel 739: my $problem_status;
1.284 albertel 740: if ($env{'request.state'} eq 'construct' &&
741: defined($env{'form.problemstatus'})) {
742: $problem_status=$env{'form.problemstatus'};
1.267 albertel 743: } else {
744: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
745: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 746: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 747: }
748: return $problem_status;
749: }
750:
1.9 albertel 751: sub start_problem {
1.326 albertel 752: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 753:
1.311 foxr 754: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 755: if (!$Apache::lonxml::metamode) {
756: &Apache::lonxml::startredirection();
757: }
1.311 foxr 758:
1.308 foxr 759: # Problems don't nest and we don't allow more than one <problem> in
760: # a .problem file.
761: #
1.184 albertel 762: if ( $Apache::inputtags::part ne '' ||
763: $Apache::lonhomework::parsing_a_problem) {
764: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 765: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 766: return '';
767: }
1.184 albertel 768:
769: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 770: &init_problem_globals('problem');
1.166 albertel 771:
1.284 albertel 772: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 773: $Apache::lonhomework::scantronmode=1;
774: }
1.161 albertel 775:
1.159 albertel 776: if ($target ne 'analyze') {
1.415 raeburn 777: my $type = &Apache::lonnet::EXT('resource.0.type');
778: $Apache::lonhomework::type=$type;
1.284 albertel 779: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 780: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 781: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 782: }
1.332 albertel 783: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 784: }
1.164 albertel 785: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 786: my $uri=$env{'request.uri'};
1.159 albertel 787: if ($uri=~/\.(\w+)$/) {
788: $Apache::lonhomework::type=$1;
789: &Apache::lonxml::debug("Using type of $1");
790: } else {
791: $Apache::lonhomework::type='problem';
792: &Apache::lonxml::debug("Using default type, problem, :$uri:");
793: }
1.87 albertel 794: }
1.301 albertel 795: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 796:
1.363 albertel 797: &initialize_storage();
1.389 albertel 798: if ($target ne 'analyze'
799: && $env{'request.state'} eq 'construct') {
800: &set_problem_state('0');
801: }
802:
1.366 albertel 803: if ($target eq 'web') {
804: &Apache::lonxml::debug(" grading history ");
805: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
806: }
1.363 albertel 807:
1.159 albertel 808: #added vars to the scripting enviroment
1.213 albertel 809: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 810: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 811: &Apache::run::run($expression,$safeeval);
1.159 albertel 812: my $status;
813: my $accessmsg;
814:
1.343 albertel 815: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 816: my ($result,$form_tag_start);
1.354 albertel 817: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
818: || $target eq 'edit') {
1.350 albertel 819: ($result,$form_tag_start) =
820: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
821: $name);
822: }
823:
1.284 albertel 824: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 825:
826: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
827: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
828: $target eq 'tex') {
829: #handle exam checkout
830: if ($Apache::lonhomework::type eq 'exam') {
831: my $token=
832: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 833: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 834: $token=&Apache::lonxml::maketoken();
835: $Apache::lonhomework::history{"resource.0.outtoken"}=
836: $token;
837: }
1.343 albertel 838: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 839: }
1.284 albertel 840: if ($env{'form.markaccess'}) {
1.414 albertel 841: my @interval=&Apache::lonnet::EXT("resource.0.interval");
842: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 843: }
1.159 albertel 844: #handle rand seed in construction space
845: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 846: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 847: if ($env{'request.state'} ne "construct" &&
848: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 849: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
850: $rndseed.'" />'.
851: '<input type="submit" name="resetdata"
1.334 albertel 852: value="'.&mt('New Problem Variation').'" />';
853: if (exists($env{'form.username'})) {
854: $form_tag_start.=
1.164 albertel 855: '<input type="hidden" name="username"
1.284 albertel 856: value="'.$env{'form.username'}.'" />';
1.334 albertel 857: }
1.333 albertel 858: if ($env{'request.role.adv'}) {
1.267 albertel 859: $form_tag_start.=
1.300 albertel 860: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 861: if (defined($env{'form.showallfoils'})) {
1.267 albertel 862: $form_tag_start.='checked="on"';
863: }
1.300 albertel 864: $form_tag_start.= ' />'.&mt(' Show All Foils').
865: '</label>';
1.267 albertel 866: }
1.417 www 867: if ($Apache::lonhomework::type eq 'practice') {
868: $form_tag_start.='<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
869: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').'</span>';
870: }
1.267 albertel 871: $form_tag_start.='<hr />';
1.162 albertel 872: }
1.324 albertel 873:
874: ($status,$accessmsg,my $slot_name,my $slot) =
875: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 876: push (@Apache::inputtags::status,$status);
1.324 albertel 877:
1.159 albertel 878: my $expression='$external::datestatus="'.$status.'";';
879: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
880: &Apache::run::run($expression,$safeeval);
881: &Apache::lonxml::debug("Got $status");
1.324 albertel 882:
1.159 albertel 883: if (( $status eq 'CLOSED' ) ||
884: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 885: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 886: ( $status eq 'BANNED') ||
1.216 albertel 887: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 888: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 889: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 890: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
891: $style);
1.159 albertel 892: if ( $target eq "web" ) {
1.343 albertel 893: my $msg;
1.159 albertel 894: if ($status eq 'UNAVAILABLE') {
1.245 albertel 895: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 896: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 897: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 898: }
1.216 albertel 899: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 900: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 901: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 902: $msg.=&checkout_msg();
1.252 albertel 903: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 904: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 905: } elsif ($status eq 'NOT_IN_A_SLOT') {
906: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 907: }
908: $result.=$msg.'<br />';
909: } elsif ($target eq 'tex') {
1.332 albertel 910: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
911: : '\begin{minipage}{\textwidth}';
912: $result.='\begin{document}\noindent \vskip 1 mm '.
913: $startminipage.'\vskip 0 mm';
1.159 albertel 914: if ($status eq 'UNAVAILABLE') {
1.211 albertel 915: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 916: } else {
1.211 albertel 917: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 918: }
919: }
1.324 albertel 920: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 921: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
922: $style);
1.324 albertel 923: if ($target eq 'web') {
1.375 albertel 924: $result .=
925: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 926: } elsif ($target eq 'grade') {
927: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
928: 'problem');
929: }
1.159 albertel 930: } elsif ($target eq 'web') {
1.360 albertel 931: if ($status eq 'CAN_ANSWER'
932: && $slot_name ne ''
933: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
934: # unproctored slot access, self checkin
935: &Apache::bridgetask::check_in('problem',undef,undef,
936: $slot_name);
937: }
1.368 albertel 938: $result.="\n $form_tag_start \t".
1.227 albertel 939: '<input type="hidden" name="submitted" value="yes" />';
940: # create a page header and exit
1.284 albertel 941: if ($env{'request.state'} eq "construct") {
942: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 943: }
944: # if we are viewing someone else preserve that info
1.284 albertel 945: if (defined $env{'form.grade_symb'}) {
1.227 albertel 946: foreach my $field ('symb','courseid','domain','username') {
947: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 948: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 949: }
950: }
951: } elsif ($target eq 'tex') {
1.319 foxr 952: $result .= 'INSERTTEXFRONTMATTERHERE';
953:
1.99 sakharuk 954: }
1.159 albertel 955: } elsif ($target eq 'edit') {
1.343 albertel 956: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 957: $Apache::lonxml::warnings_error_header=
958: &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 959: my $temp=&Apache::edit::insertlist($target,$token);
960: $result.=$temp;
961: } elsif ($target eq 'modified') {
962: $result=$token->[4];
963: } else {
964: # page_start returned a starting result, delete it if we don't need it
965: $result = '';
1.99 sakharuk 966: }
1.159 albertel 967: return $result;
1.9 albertel 968: }
969:
970: sub end_problem {
1.159 albertel 971: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 972: my $result;
1.310 foxr 973:
1.321 albertel 974: if (!$Apache::lonxml::metamode) {
975: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 976: $Apache::lonxml::post_evaluate=0;
1.321 albertel 977: }
1.319 foxr 978:
979: if ($target eq 'tex') {
1.321 albertel 980: # Figure out the front matter and replace the
981: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
982: # this in end_problem because whether or not we display due
983: # dates depends on whether due dates have already been
984: # displayed in the problem parts.
985:
1.319 foxr 986: my $frontmatter = '';
987: my $startminipage = '';
988: if (not $env{'form.problem_split'}=~/yes/) {
989: $startminipage = '\begin{minipage}{\textwidth}';
990: }
991: my $id = $Apache::inputtags::part;
992: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
993: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
994: my @packages = split /,/,$packages;
995: my $allow_print_points = 0;
996: foreach my $partial_key (@packages) {
997: if ($partial_key=~m/^part_0$/) {
998: $allow_print_points=1;
999: }
1000: }
1001: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1002: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1003: if (lc($env{'course.'.$env{'request.course.id'}.
1004: '.disableexampointprint'}) eq 'yes') {
1005: $allow_print_points=0;
1006: }
1007: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1008: my $begin_doc='\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent ';
1009: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1010: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1011:
1012: # Figure out what the due date is and if we need to print
1013: # it in the problem header. We have been logging the
1014: # last due date written to file.
1015:
1016: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1017: my $duedate = POSIX::strftime("%c",localtime($duetime));
1018: my $temp_file;
1019: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1020:
1021: # Figure out what the last printed due date is or set it
1022: # to the epoch if no duedates have been printed.
1023:
1024: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1025: if (-e $filename) {
1026: $temp_file = Apache::File->new($filename);
1027: my @due_file = <$temp_file>;
1028: $due_file_content = $due_file[$#due_file];
1029: chomp $due_file_content;
1030: }
1031:
1032: # We display the due date iff it is not the same as the last
1033: # duedate in problem header ($due_file_content), and
1034: # none of our parts displayed a duedate.
1035: #
1036: my $parts_with_displayduedate;
1037: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1038: $parts_with_displayduedate =
1039: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1040: } else {
1041: $parts_with_displayduedate = 0;
1042: }
1043: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1044: $temp_file = Apache::File->new('>'.$filename);
1045: print $temp_file "$duetime\n";
1046: if (not $env{'request.symb'} =~ m/\.page_/) {
1047: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1048: $frontmatter .= $begin_doc.
1049: '\textit{Due date: '.$duedate.'} '.$toc_line;
1050: } else {
1051: $frontmatter.= $begin_doc.$toc_line;
1052: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1053: }
1054: } else {
1.381 albertel 1055: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\'.$startminipage;
1.319 foxr 1056: }
1057: } else {
1058: if (not $env{'request.symb'} =~ m/\.page_/) {
1059: $frontmatter .= $begin_doc.$toc_line;
1060: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1061: } else {
1.381 albertel 1062: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1063: }
1064: }
1065: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1066: }
1067:
1.159 albertel 1068: my $status=$Apache::inputtags::status['-1'];
1069: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1070: $target eq 'tex') {
1.249 albertel 1071: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1072: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1073: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1074: &Apache::inputtags::grade;
1.324 albertel 1075: } elsif ($status eq 'NEEDS_CHECKIN') {
1076: # no need to grade, and don't want to hide data
1.249 albertel 1077: } else {
1078: # move any submission data to .hidden
1079: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1080: }
1.159 albertel 1081: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1082: $Apache::inputtags::part eq '0' &&
1.252 albertel 1083: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1084: # if part is zero, no <part>s existed, so we need show the current
1085: # grading status
1086: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1087: $result.= $gradestatus;
1088: }
1089: if (
1.284 albertel 1090: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1091: ($target eq 'answer') || ($target eq 'tex')
1092: ) {
1.227 albertel 1093: if ($target ne 'tex' &&
1.284 albertel 1094: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1095: $result.="</form>";
1.348 albertel 1096: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 1097: }
1098: if ($target eq 'web') {
1.346 albertel 1099: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1100: } elsif ($target eq 'tex') {
1.178 sakharuk 1101: my $endminipage = '';
1.284 albertel 1102: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1103: $endminipage = '\end{minipage}';
1104: }
1.284 albertel 1105: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1106: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1107: } else {
1.262 sakharuk 1108: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1109: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1110: $result .= $endminipage.'\end{document} ';
1111: } else {
1.382 albertel 1112: $result .= $endminipage;
1.262 sakharuk 1113: }
1.159 albertel 1114: }
1115: }
1116: }
1117: if ($target eq 'grade') {
1118: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1119: &finalize_storage();
1120: }
1.284 albertel 1121: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1122: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1123: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1124: # normally we get it from above, but in CSTR
1.172 albertel 1125: # we always show answer mode too.
1.159 albertel 1126: }
1127: } elsif ($target eq 'meta') {
1128: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1129: @Apache::inputtags::response=();
1.159 albertel 1130: $result=&Apache::response::mandatory_part_meta;
1131: }
1.215 albertel 1132: $result.=&Apache::response::meta_part_order();
1.258 albertel 1133: $result.=&Apache::response::meta_response_order();
1.159 albertel 1134: } elsif ($target eq 'edit') {
1135: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1136: $result .= &problem_edit_footer();
1.320 albertel 1137: } elsif ($target eq 'modified') {
1138: $result .= $token->[2];
1.159 albertel 1139: }
1.155 albertel 1140:
1.284 albertel 1141: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1142: &Apache::inputtags::check_for_duplicate_ids();
1143: }
1.204 albertel 1144:
1145: &reset_problem_globals('problem');
1.159 albertel 1146:
1147: return $result;
1.48 albertel 1148: }
1149:
1.108 albertel 1150:
1.48 albertel 1151: sub start_library {
1.159 albertel 1152: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1153: my ($result,$form_tag_start);
1.371 albertel 1154: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1155: &init_problem_globals('library');
1156: $Apache::lonhomework::type='problem';
1157: }
1.159 albertel 1158: if ($target eq 'edit') {
1.343 albertel 1159: ($result,$form_tag_start)=
1160: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1161: 'Edit');
1162: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1163: my $temp=&Apache::edit::insertlist($target,$token);
1164: $result.=$temp;
1165: } elsif ($target eq 'modified') {
1166: $result=$token->[4];
1.340 albertel 1167: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1168: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1169: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1170: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1171: ($result,$form_tag_start)=
1172: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1173: $name);
1.159 albertel 1174: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1175: $result.=" \n $form_tag_start".
1.159 albertel 1176: '<input type="hidden" name="submitted" value="yes" />';
1177: $result.=&problem_web_to_edit_header($rndseed);
1178: }
1179: return $result;
1.48 albertel 1180: }
1181:
1182: sub end_library {
1.159 albertel 1183: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1184: my $result='';
1185: if ($target eq 'edit') {
1186: $result=&problem_edit_footer();
1.371 albertel 1187: } elsif ($target eq 'web'
1188: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1189: && $env{'request.state'} eq "construct") {
1.349 albertel 1190: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1191: }
1.371 albertel 1192: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1193: &reset_problem_globals('library');
1194: }
1.159 albertel 1195: return $result;
1.197 www 1196: }
1197:
1198: sub start_definetag {
1.326 albertel 1199: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1200:
1201: my $result;
1202:
1203: my $name = $token->[2]->{'name'};
1.326 albertel 1204: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1205: if ($target eq 'web') {
1206: if ($name=~/^\//) {
1207: $result=
1208: '<br /><table class="LC_sty_end"><tr><th>'.
1209: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1210: } else {
1211: $result=
1212: '<br /><table class="LC_sty_begin"><tr><th>'.
1213: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1214: }
1215: $skip = &HTML::Entities::encode($skip, '<>&"');
1216: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1217: }
1218: return $result;
1219: }
1220:
1221: sub end_definetag {
1222: return '';
1.1 albertel 1223: }
1224:
1225: sub start_block {
1.201 albertel 1226: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1227:
1228: my $result;
1.1 albertel 1229:
1.339 albertel 1230: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1231: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1232: my $code = $token->[2]->{'condition'};
1.385 albertel 1233: if (defined($code) && $code ne '') {
1.137 albertel 1234: if (!$Apache::lonxml::default_homework_loaded) {
1235: &Apache::lonxml::default_homework_load($safeeval);
1236: }
1.131 albertel 1237: $result = &Apache::run::run($code,$safeeval);
1238: &Apache::lonxml::debug("block :$code: returned :$result:");
1239: } else {
1240: $result='1';
1241: }
1242: if ( ! $result ) {
1.201 albertel 1243: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1244: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1245: }
1246: $result='';
1247: } elsif ($target eq 'edit') {
1248: $result .=&Apache::edit::tag_start($target,$token);
1249: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1250: $token,40);
1251: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1252: } elsif ($target eq 'modified') {
1253: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1254: $safeeval,'condition');
1255: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1256: }
1.131 albertel 1257: return $result;
1.1 albertel 1258: }
1259:
1260: sub end_block {
1.167 www 1261: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1262: my $result;
1263: if ($target eq "edit") {
1264: $result.= &Apache::edit::tag_end($target,$token,'');
1265: }
1266: return $result;
1267: }
1268:
1269: sub start_languageblock {
1.201 albertel 1270: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1271:
1272: my $result;
1273:
1.339 albertel 1274: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1275: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1276: my $include = $token->[2]->{'include'};
1277: my $exclude = $token->[2]->{'exclude'};
1.398 www 1278: my @preferred_languages=&Apache::loncommon::preferred_languages();
1.394 www 1279: # This should not even happen, since we should at least have the server language
1.398 www 1280: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1281: # Now loop over all languages in order of preference
1282: foreach my $preferred_language (@preferred_languages) {
1.394 www 1283: # If the languageblock has no arguments, show the contents
1.399 www 1284: $result=1;
1285: my $found=0;
1.394 www 1286: # Do we have an include argument?
1.398 www 1287: if ($include) {
1.394 www 1288: # If include is specified, by default, don't render the block
1.399 www 1289: $result=0;
1.398 www 1290: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1291: # ... but if my preferred language is included, render it
1.398 www 1292: if ($included_language eq $preferred_language) {
1.399 www 1293: $result=1;
1294: $found=1;
1.398 www 1295: }
1296: }
1297: }
1.394 www 1298: # Do we have an exclude argument?
1.398 www 1299: if ($exclude) {
1.399 www 1300: $result=1;
1.398 www 1301: foreach my $excluded_language (split(/\,/,$exclude)) {
1302: if ($excluded_language eq $preferred_language) {
1.399 www 1303: $result=0;
1304: $found=1;
1.398 www 1305: }
1306: }
1307: }
1.399 www 1308: if ($found) { last; }
1.398 www 1309: }
1.201 albertel 1310: if ( ! $result ) {
1311: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1312: $style);
1313: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1314: }
1315: $result='';
1.167 www 1316: } elsif ($target eq 'edit') {
1317: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1318: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1319: $token,40);
1.211 albertel 1320: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1321: $token,40);
1322: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1323: } elsif ($target eq 'modified') {
1324: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1325: $safeeval,'include',
1326: 'exclude');
1.167 www 1327: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1328: }
1329: return $result;
1330: }
1331:
1332: sub end_languageblock {
1.170 www 1333: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1334: my $result;
1.201 albertel 1335: if ($target eq "edit") {
1.170 www 1336: $result.= &Apache::edit::tag_end($target,$token,'');
1337: }
1338: return $result;
1339: }
1340:
1.397 albertel 1341: {
1342: my %available_texts;
1343: sub start_translated {
1344: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1345: &Apache::lonxml::register('Apache::structuretags',('lang'));
1346: undef(%available_texts);
1347: }
1348:
1349: sub end_translated {
1350: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1351: my $result;
1352: #show the translation on viewable targets
1353: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1354: # or non-viewable targets, if it's embedded in something that
1355: # wants the output
1356: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1357: && &Apache::lonxml::in_redirection() ) ) {
1358: my @possibilities = keys(%available_texts);
1359: my $which =
1360: &Apache::loncommon::languages(\@possibilities) || 'default';
1361: $result = $available_texts{$which};
1362: }
1363: undef(%available_texts);
1364: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1365: return $result;
1366: }
1367:
1368:
1369: sub start_lang {
1370: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1371: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1372: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1373: &Apache::lonxml::startredirection();
1374: }
1375: return '';
1376: }
1377:
1378: sub end_lang {
1379: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1380: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1381: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1382: my $result = &Apache::lonxml::endredirection();
1383: my $which = &Apache::lonxml::get_param('which',$parstack,
1384: $safeeval);
1.427 ! bisitz 1385: foreach my $language (split(/\s*\,\s*/,$which)) {
! 1386: unless ($language=~/\w/) { next; }
! 1387: $available_texts{$language} = $result;
! 1388: }
! 1389:
1.397 albertel 1390: }
1391: return '';
1392: }
1393: }
1394:
1.170 www 1395: sub start_instructorcomment {
1.201 albertel 1396: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1397:
1398: my $result;
1399:
1.339 albertel 1400: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1401: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1402: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1403: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1404: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1405: $parser,$style);
1.170 www 1406: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1407: }
1408: $result='';
1409: } elsif ($target eq 'edit') {
1410: $result .=&Apache::edit::tag_start($target,$token);
1411: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1412: }
1413: return $result;
1414: }
1415:
1416: sub end_instructorcomment {
1.159 albertel 1417: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1418: my $result;
1419: if ($target eq "edit") {
1420: $result.= &Apache::edit::tag_end($target,$token,'');
1421: }
1422: return $result;
1.4 tsai 1423: }
1424:
1425: sub start_while {
1.326 albertel 1426: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1427:
1.160 albertel 1428: my $result;
1.339 albertel 1429: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1430: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1431: my $code = $token->[2]->{'condition'};
1.4 tsai 1432:
1.160 albertel 1433: push( @Apache::structuretags::whileconds, $code);
1434: if (!$Apache::lonxml::default_homework_loaded) {
1435: &Apache::lonxml::default_homework_load($safeeval);
1436: }
1437: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1438: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1439: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1440: push( @Apache::structuretags::whileline, $token->[5]);
1441: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1442: if ( $result ) {
1443: &Apache::lonxml::newparser($parser,\$bodytext);
1444: }
1445: } elsif ($target eq 'edit') {
1446: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1447: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1448: $token,40);
1449: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1450: } elsif ($target eq 'modified') {
1451: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1452: $safeeval,'condition');
1453: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1454: }
1.160 albertel 1455: return $result;
1.4 tsai 1456: }
1457:
1458: sub end_while {
1.159 albertel 1459: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1460: my $result;
1461:
1.339 albertel 1462: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1463: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1464: my $code = pop(@Apache::structuretags::whileconds);
1465: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1466: my $line = pop(@Apache::structuretags::whileline);
1467: my $return = &Apache::run::run($code,$safeeval);
1468: my $starttime=time;
1469: my $error=0;
1470: while ($return) {
1471: if (time-$starttime >
1472: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1473: $return = 0; $error=1; next;
1.161 albertel 1474: }
1475: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1476: if ($target eq 'grade' || $target eq 'answer' ||
1477: $target eq 'analyze') {
1478: # grade/answer/analyze should produce no output but if we
1479: # are redirecting, the redirecter should know what to do
1480: # with the output
1481: if (!$Apache::lonxml::redirection) { undef($result); }
1482: }
1.161 albertel 1483: $return = &Apache::run::run($code,$safeeval);
1484: }
1485: if ($error) {
1.270 albertel 1486: &Apache::lonxml::error('<pre>'.&mt('Code ran too long. It ran for more than').' '.$Apache::lonnet::perlvar{'lonScriptTimeout'}.' '.&mt('seconds occured while running <while> on line').' '.$line.'</pre>');
1.160 albertel 1487: }
1488: } elsif ($target eq "edit") {
1489: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1490: }
1.160 albertel 1491: return $result;
1.1 albertel 1492: }
1.6 tsai 1493:
1.160 albertel 1494: # <randomlist show="1">
1.6 tsai 1495: # <tag1>..</tag1>
1496: # <tag2>..</tag2>
1497: # <tag3>..</tag3>
1.160 albertel 1498: # ...
1.6 tsai 1499: # </randomlist>
1500: sub start_randomlist {
1.326 albertel 1501: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1502: my $result;
1.339 albertel 1503: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1504: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1505: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1506: my $b_parser= HTML::LCParser->new(\$body);
1507: $b_parser->xml_mode(1);
1508: $b_parser->marked_sections(1);
1.159 albertel 1509: my $b_tok;
1510: my @randomlist;
1511: my $list_item;
1512: while($b_tok = $b_parser->get_token() ) {
1513: if($b_tok->[0] eq 'S') { # start tag
1514: # get content of the tag until matching end tag
1515: # get all text upto the matching tag
1516: # and push the content into @randomlist
1517: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1518: $b_parser);
1519: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1520: push(@randomlist,$list_item);
1521: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1522: # $list_item</b>";
1523: }
1524: if($b_tok->[0] eq 'T') { # text
1525: # what to do with text in between tags?
1526: # print "<b>TEXT $b_tok->[1]</b><br />";
1527: }
1528: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1529: # print "<b>END-TAG $b_tok->[1]</b><br />";
1530: # }
1531: }
1.303 albertel 1532: if (@randomlist) {
1533: my @idx_arr = (0 .. $#randomlist);
1534: &Apache::structuretags::shuffle(\@idx_arr);
1535: my $bodytext = '';
1536: my $show=$#randomlist;
1537: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1538: $showarg--;
1539: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1540: for(0 .. $show) {
1541: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1542: }
1543: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1544: }
1545: } elsif ($target eq 'edit' ) {
1546: $result .=&Apache::edit::tag_start($target,$token);
1547: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1548: $token,5);
1549: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1550: } elsif ($target eq 'modified' ) {
1551: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1552: $safeeval,'show');
1553: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1554: }
1555: return $result;
1.7 tsai 1556: }
1557:
1558: sub shuffle {
1559: my $a=shift;
1560: my $i;
1.303 albertel 1561: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1562: &Apache::response::pushrandomnumber();
1.159 albertel 1563: for($i=@$a;--$i;) {
1564: my $j=int(&Math::Random::random_uniform() * ($i+1));
1565: next if $i == $j;
1566: @$a[$i,$j] = @$a[$j,$i];
1567: }
1.251 albertel 1568: &Apache::response::poprandomnumber();
1.7 tsai 1569: }
1.6 tsai 1570: }
1571:
1572: sub end_randomlist {
1.159 albertel 1573: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1574: my $result;
1575: if ($target eq 'edit' ) {
1576: $result=&Apache::edit::tag_end($target,$token,
1577: 'End Randomly Parsed Block');
1578: }
1579: return $result;
1.6 tsai 1580: }
1581:
1.283 albertel 1582: sub ordered_show_check {
1583: my $last_part=$Apache::inputtags::partlist[-2];
1584: my $in_order=
1585: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1586: my $in_order_show=1;
1587: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1588: $in_order_show=&Apache::response::check_status($last_part);
1589: }
1590: return $in_order_show;
1591: }
1592:
1.11 albertel 1593: sub start_part {
1.326 albertel 1594: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1595: if (!$Apache::lonxml::metamode) {
1596: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1597: # duedates.
1598: }
1.159 albertel 1599: my $result='';
1.386 albertel 1600: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1601: $Apache::inputtags::part=$id;
1.177 albertel 1602: push(@Apache::inputtags::partlist,$id);
1603: @Apache::inputtags::response=();
1.159 albertel 1604: @Apache::inputtags::previous=();
1605: @Apache::inputtags::previous_version=();
1.405 albertel 1606: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1607: &Apache::response::reset_params();
1608:
1.159 albertel 1609: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1610: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1611: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1612: my $in_order_show=&ordered_show_check();
1.214 albertel 1613: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1614: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1615: &Apache::run::run($expression,$safeeval);
1.159 albertel 1616:
1617: if ($target eq 'meta') {
1.224 www 1618: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1619: return &Apache::response::mandatory_part_meta.
1620: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1621: } elsif ($target eq 'web' || $target eq 'grade' ||
1622: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1623: if ($hidden || !$in_order_show) {
1.326 albertel 1624: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1625: } else {
1626: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1627: push (@Apache::inputtags::status,$status);
1628: my $expression='$external::datestatus="'.$status.'";';
1629: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1630: &Apache::run::run($expression,$safeeval);
1.284 albertel 1631: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1632: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1633: }
1.216 albertel 1634: if (( $status eq 'CLOSED' ) ||
1635: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1636: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1637: ( $status eq 'BANNED') ||
1638: ( $status eq 'UNAVAILABLE') ||
1639: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1640: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1641: $style);
1.159 albertel 1642: if ( $target eq "web" ) {
1.211 albertel 1643: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1644: } elsif ( $target eq 'tex' ) {
1.284 albertel 1645: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1646: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1647: } else {
1.211 albertel 1648: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1649: }
1.159 albertel 1650: }
1651: } else {
1652: if ($target eq 'tex') {
1.284 albertel 1653: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1654: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1655: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1656: } else {
1657: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1658: }
1.195 sakharuk 1659: }
1.159 albertel 1660: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1661: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1662: my @allkeys = split /,/,$allkeys;
1663: my $allow_print_points = 0;
1664: foreach my $partial_key (@allkeys) {
1.230 albertel 1665: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1666: if ($1 ne '0') {$allow_print_points=1;}
1667: }
1668: }
1.275 albertel 1669: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1670: if (defined($maxtries) && $maxtries < 0) {
1671: $allow_print_points=0;
1672: }
1.302 albertel 1673: if (lc($env{'course.'.$env{'request.course.id'}.
1674: '.disableexampointprint'}) eq 'yes') {
1675: $allow_print_points=0;
1676: }
1.222 sakharuk 1677: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1678: } elsif ($target eq 'web') {
1.356 www 1679: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1680: }
1681: }
1682: }
1683: } elsif ($target eq 'edit') {
1684: $result.=&Apache::edit::tag_start($target,$token);
1685: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1686: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1687: ' '.
1688: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1689: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1690: } elsif ($target eq 'modified') {
1691: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1692: $safeeval,'id','display');
1.159 albertel 1693: if ($constructtag) {
1.225 albertel 1694: #limiting ids to only letters numbers, and space
1.224 www 1695: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1696: $result = &Apache::edit::rebuild_tag($token);
1697: }
1698: }
1699: return $result;
1.11 albertel 1700: }
1701:
1702: sub end_part {
1.159 albertel 1703: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1704: &Apache::lonxml::debug("in end_part $target ");
1705: my $status=$Apache::inputtags::status['-1'];
1706: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1707: my $in_order_show=&ordered_show_check();
1.321 albertel 1708: my $result;
1709: if (!$Apache::lonxml::metamode) {
1710: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1711: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1712: }
1.312 albertel 1713: if ($target eq 'grade') {
1.249 albertel 1714: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1715: !$hidden && $in_order_show) {
1.311 foxr 1716: $result.=&Apache::inputtags::grade;
1.249 albertel 1717: } else {
1718: # move any submission data to .hidden
1719: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1720: }
1.283 albertel 1721: } elsif (($target eq 'web' || $target eq 'tex') &&
1722: !$hidden && $in_order_show) {
1.159 albertel 1723: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1724: $target);
1.212 albertel 1725: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1726: $gradestatus='';
1727: }
1.311 foxr 1728: $result.=$gradestatus;
1.265 sakharuk 1729: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1730: } elsif ($target eq 'edit') {
1.311 foxr 1731: $result.=&Apache::edit::end_table();
1.322 albertel 1732: } elsif ($target eq 'modified') {
1733: $result .= $token->[2];
1.159 albertel 1734: }
1735: pop @Apache::inputtags::status;
1736: $Apache::inputtags::part='';
1.295 albertel 1737: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1738: return $result;
1.11 albertel 1739: }
1.1 albertel 1740:
1.25 albertel 1741: sub start_preduedate {
1.326 albertel 1742: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1743: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1744: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1745: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1746: if (!$Apache::lonhomework::scantronmode &&
1747: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1748: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1749: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1750: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1751: }
1.24 albertel 1752: }
1.159 albertel 1753: return '';
1.24 albertel 1754: }
1755:
1.25 albertel 1756: sub end_preduedate {
1.159 albertel 1757: return '';
1.24 albertel 1758: }
1759:
1.369 foxr 1760: # In all the modes where <postanswerdate> text is
1761: # displayable, all we do is eat up the text between the start/stop
1762: # tags if the conditions are not right to display it.
1.25 albertel 1763: sub start_postanswerdate {
1.326 albertel 1764: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1765: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1766: &Apache::lonnet::allowed('pav',
1767: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1768: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1769: $target eq 'tex' ) {
1.300 albertel 1770: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1771: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1772: (($target eq 'tex') && !$pav)) {
1.326 albertel 1773: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1774: }
1775: }
1776: return '';
1.24 albertel 1777: }
1778:
1.25 albertel 1779: sub end_postanswerdate {
1.159 albertel 1780: return '';
1.24 albertel 1781: }
1782:
1.25 albertel 1783: sub start_notsolved {
1.326 albertel 1784: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1785: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1786: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1787: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1788: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1789: if ($gradestatus =~ /^correct/ &&
1790: &Apache::response::show_answer()) {
1.159 albertel 1791: &Apache::lonxml::debug("skipping");
1.326 albertel 1792: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1793: }
1.24 albertel 1794: }
1.159 albertel 1795: return '';
1.24 albertel 1796: }
1797:
1.25 albertel 1798: sub end_notsolved {
1.159 albertel 1799: return '';
1.24 albertel 1800: }
1801:
1802: sub start_solved {
1.326 albertel 1803: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1804: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1805: $target eq 'tex') {
1806: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1807: if ($gradestatus !~ /^correct/ ||
1808: !&Apache::response::show_answer()) {
1.326 albertel 1809: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1810: }
1.24 albertel 1811: }
1.159 albertel 1812: return '';
1.24 albertel 1813: }
1814:
1815: sub end_solved {
1.248 albertel 1816: return '';
1817: }
1818:
1819: sub start_problemtype {
1.326 albertel 1820: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1821: my $result;
1.339 albertel 1822: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1823: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1824: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1825: if (!defined($mode)) { $mode='show'; }
1826: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1827: my $found=0;
1828: foreach my $type (split(',',$for)) {
1829: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1830: }
1831: if ($mode eq 'show' && !$found) {
1.326 albertel 1832: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1833: }
1834: if ($mode eq 'hide' && $found) {
1.326 albertel 1835: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1836: }
1837: } elsif ($target eq 'edit') {
1838: $result .=&Apache::edit::tag_start($target,$token);
1839: $result.=&Apache::edit::select_arg('Mode:','mode',
1840: [['show','Show'],
1841: ['hide','Hide']]
1842: ,$token);
1843: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1844: [ ['exam','Exam/Quiz Problem'],
1845: ['survey','Survey'],
1846: ['problem','Homework Problem'] ]
1847: ,$token);
1848: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1849: } elsif ($target eq 'modified') {
1850: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1851: $safeeval,'mode','for');
1852: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1853: }
1854: return $result;
1855: }
1856:
1857: sub end_problemtype {
1.159 albertel 1858: return '';
1.24 albertel 1859: }
1.34 albertel 1860:
1861: sub start_startouttext {
1.159 albertel 1862: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1863: my @result=(''.'');
1864: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 1865:
1866: my $nesting =
1867: &Apache::lonxml::set_state('outtext',
1868: &Apache::lonxml::get_state('outtext')+1);
1869: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
1870: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
1871: }
1.159 albertel 1872: return (@result);
1.34 albertel 1873: }
1.159 albertel 1874:
1.34 albertel 1875: sub end_startouttext {
1.326 albertel 1876: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1877: my $result='';
1878: my $text='';
1879:
1880: if ($target eq 'edit') {
1.424 foxr 1881: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 1882: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1883: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1884: <td>".&mt('Delete:').
1.159 albertel 1885: &Apache::edit::deletelist($target,$token)
1.426 felicia 1886: ."</td>";
1.425 raeburn 1887: unless ($env{'environment.wysiwygeditor'} eq 'on') {
1888: $result.='<td align="left">'
1889: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1890: .'</td>';
1891: }
1892: $result.='<td align="right" valign="top">' .
1.362 albertel 1893: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1894: &Apache::edit::end_row().
1.362 albertel 1895: &Apache::edit::start_spanning_row()."\n".
1.255 www 1896: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1897: }
1898: if ($target eq 'modified') {
1.219 albertel 1899: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1900: }
1901: if ($target eq 'tex') {
1902: $result .= '\noindent ';
1903: }
1904: return $result;
1.34 albertel 1905: }
1.159 albertel 1906:
1.34 albertel 1907: sub start_endouttext {
1.159 albertel 1908: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1909: my $result='';
1910: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1911: if ($target eq "modified") {
1912: $result='<endouttext />'.
1.377 albertel 1913: &Apache::edit::handle_insertafter('startouttext');
1914: }
1.404 albertel 1915:
1916: my $nesting =
1917: &Apache::lonxml::set_state('outtext',
1918: &Apache::lonxml::get_state('outtext')-1);
1919: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
1920: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
1921: &Apache::lonxml::set_state('outtext', 0);
1922: }
1.159 albertel 1923: return $result;
1.34 albertel 1924: }
1.159 albertel 1925:
1.34 albertel 1926: sub end_endouttext {
1.159 albertel 1927: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1928: my @result=('','');
1929: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1930: return (@result);
1.34 albertel 1931: }
1.159 albertel 1932:
1.45 albertel 1933: sub delete_startouttext {
1.326 albertel 1934: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1935: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1936: my $text=$$parser['-1']->get_text("/endouttext");
1937: my $ntoken=$$parser['-1']->get_token();
1938: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1939: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1940: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1941: # they did the last time round
1942: &Apache::lonxml::increasedepth($ntoken);
1943: &Apache::lonxml::decreasedepth($ntoken);
1944: return 1;
1.193 www 1945: }
1946:
1947: sub start_simpleeditbutton {
1948: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1949: my $result='';
1.284 albertel 1950: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1951: ($target eq 'web') &&
1.330 albertel 1952: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1953: my $url=$env{'request.noversionuri'};
1.193 www 1954: $url=~s/\?.*$//;
1.367 albertel 1955: my ($symb) = &Apache::lonnet::whichuser();
1.194 www 1956: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.356 www 1957: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'.&mt('Edit').'</a> - '.&mt('Note: it can take up to 10 minutes for changes to take effect for all users.').
1.196 www 1958: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1959: }
1960: return $result;
1961: }
1962:
1963: sub end_simpleeditbutton {
1964: return '';
1.45 albertel 1965: }
1.34 albertel 1966:
1.1 albertel 1967: 1;
1968: __END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to structuretags.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / homework