Annotation of loncom/homework/structuretags.pm, revision 1.72
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.33 albertel 3: # 2/19 Guy
1.44 ng 4: # 6/26/2001 fixed extra web display at end of <web></web> tags
1.60 www 5: # 8/17,8/18,8/20 Gerd Kortemeyer
1.54 www 6:
1.1 albertel 7: package Apache::structuretags;
8:
9: use strict;
10: use Apache::lonnet;
11:
12: sub BEGIN {
1.48 albertel 13: &Apache::lonxml::register('Apache::structuretags',('block','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','startouttext','endouttext'));
1.37 albertel 14: # &Apache::lonxml::register_insert('problem','',('part','postanswerdate','preduedate'))
1.10 albertel 15: }
16:
17: sub start_web {
1.40 albertel 18: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.10 albertel 19: my $bodytext=&Apache::lonxml::get_all_text("/web",$$parser[$#$parser]);
1.19 albertel 20: if ($target eq 'web') {
21: return $bodytext;
22: }
23: return '';
1.10 albertel 24: }
25:
26: sub end_web {
1.44 ng 27: return '';
1.10 albertel 28: }
29:
30: sub start_tex {
1.40 albertel 31: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.10 albertel 32: my $bodytext=&Apache::lonxml::get_all_text("/tex",$$parser[$#$parser]);
1.19 albertel 33: if ($target eq 'tex') {
34: return $bodytext
35: }
1.10 albertel 36: return '';
37: }
38:
39: sub end_tex {
1.44 ng 40: return '';
1.9 albertel 41: }
42:
1.48 albertel 43: sub page_start {
44: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
45: my $result=&Apache::londefdef::start_html($target,$token,$tagstack,$parstack,$parser,$safeeval);
46: my $head_tag_start='<head>'.&Apache::lonxml::registerurl();
47: my $body_tag_start='<body onLoad="'.&Apache::lonxml::loadevents().'" '.
1.50 albertel 48: 'onUnload="'.&Apache::lonxml::unloadevents().'" ';
49: my $background=&Apache::lonxml::get_param('background',$parstack,$safeeval);
50: if ($background) {
51: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
52: $background;
53: $body_tag_start.='background="'.$background.'" ';
54: } else {
55: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,$safeeval);
56: if ($bgcolor) {
57: $body_tag_start.='bgcolor="'.$bgcolor.'" ';
58: } else {
59: $body_tag_start.='bgcolor="#ffffff"';
60: }
61: }
62: $body_tag_start.='>';
1.48 albertel 63: return ($result,$head_tag_start,$body_tag_start);
64: }
65:
1.65 albertel 66: sub initialize_storage {
67: %Apache::lonhomework::results=();
1.66 albertel 68: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.67 albertel 69: if ($ENV{'request.state'} eq 'construct') {
70: %Apache::lonhomework::history=
1.72 ! albertel 71: &Apache::lonnet::tmprestore($ENV{'request.uri'},'',$domain,$name);
1.67 albertel 72: my ($temp)=keys %Apache::lonhomework::history ;
73: &Apache::lonxml::debug("Return message of $temp");
74: } else {
75: %Apache::lonhomework::history=
76: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
77: }
1.65 albertel 78: #ignore error conditions
79: my ($temp)=keys %Apache::lonhomework::history ;
80: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
81: }
82:
83: # -------------------------------------------------------------finalize_storage
84: # Stores away the result has to a student's environment
85: # checks form.grade_ for specific values, other wises stores
86: # to the running users environment
87: sub finalize_storage {
88: my $result;
89: my ($temp) = keys %Apache::lonhomework::results;
90: if ( $temp ne '' ) {
1.66 albertel 91: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.67 albertel 92: if ($ENV{'request.state'} eq 'construct') {
1.72 ! albertel 93: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
! 94: $ENV{'request.uri'},'',$domain,$name);
1.67 albertel 95: &Apache::lonxml::debug('Construct Store return message:'.$result);
96: } else {
97: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
98: $symb,$courseid,$domain,$name);
99: &Apache::lonxml::debug('Store return message:'.$result);
100: }
1.65 albertel 101: }
102: return $result;
103: }
104:
105: sub checkout_msg {
106: return (<<ENDCHECKOUT);
107: <h2>The resource needs to be checked out</h2>
108: As a resource gets checked out, a unique timestamped ID is given to it, and a
109: permanent record is left in the system.<p />
110: <font color=red>
111: Checking out resources is subject to course policies, and may exclude future
112: credit even if done erroneously.<p />
113: </font>
114: <form method=post>
115: <input type=button name="doescheckout"
116: value="Check out Exam for Viewing"
117: onClick="if (confirm('Check out Exam?')) { this.form.submit(); }" />
118: </form>
119: ENDCHECKOUT
120: }
121:
1.9 albertel 122: sub start_problem {
1.40 albertel 123: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 124:
125: #intialize globals
126: $Apache::inputtags::part='0';
127: @Apache::inputtags::responselist = ();
1.51 albertel 128: @Apache::inputtags::previous=();
1.65 albertel 129: &initialize_storage();
1.42 albertel 130: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
131: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
132: if ($Apache::lonhomework::type eq '') {
1.53 albertel 133: my $uri=$ENV{'request.uri'};
134: if ($uri=~/\.(\w+)$/) {
135: $Apache::lonhomework::type=$1;
136: &Apache::lonxml::debug("Using type of $1");
137: } else {
138: $Apache::lonhomework::type='problem';
139: &Apache::lonxml::debug("Using default type, problem, :$uri:");
140: }
1.42 albertel 141: }
1.58 www 142:
1.67 albertel 143: #added vars to the scripting enviroment
1.19 albertel 144: my $expression='$external::part='.$Apache::inputtags::part.';';
145: &Apache::run::run($expression,$safeeval);
1.22 albertel 146: my $status;
1.55 www 147: my $accessmsg;
1.36 albertel 148:
1.41 albertel 149: #should get back a <html> or the neccesary stuff to start XML/MathML
1.48 albertel 150: my ($result,$head_tag_start,$body_tag_start)=
151: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.36 albertel 152:
1.67 albertel 153:
1.68 albertel 154: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer') {
1.67 albertel 155: #handle exam checkout
156: if ($Apache::lonhomework::type eq 'exam') {
157: my $token=$Apache::lonhomework::history{"resource.0.outtoken"};
158: if (($ENV{'form.doescheckout'}) && (!$token)) {
159: $token=&Apache::lonxml::maketoken();
160: $Apache::lonhomework::history{"resource.0.outtoken"}=$token;
161: }
162: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
163: }
164:
165: #handle rand seed in construction space
166: my $rndseed;
167: if ($ENV{'request.state'} eq "construct") {
168: $rndseed=$ENV{'form.rndseed'};
169: if (!$rndseed) {
170: $rndseed=time;
171: $ENV{'form.rndseed'}=$rndseed;
1.58 www 172: }
1.67 albertel 173: &Apache::run::run('$external::randomseed='.$rndseed.';',$safeeval);
174: }
1.55 www 175: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
1.22 albertel 176: push (@Apache::inputtags::status,$status);
1.24 albertel 177: my $expression='$external::datestatus="'.$status.'";';
178: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
179: &Apache::run::run($expression,$safeeval);
1.54 www 180: if (( $status eq 'CLOSED' ) ||
181: ( $status eq 'UNCHECKEDOUT') ||
182: ( $status eq 'BANNED')) {
1.21 albertel 183: my $bodytext=&Apache::lonxml::get_all_text("/problem",$$parser[$#$parser]);
184: if ( $target eq "web" ) {
1.41 albertel 185: $result.= $head_tag_start.'</head>';
1.54 www 186: my $msg=$body_tag_start.
187: '<h1>Not open to be viewed</h1>';
188: if ($status eq 'CLOSED') {
1.55 www 189: $msg.='The problem '.$accessmsg;
1.54 www 190: } elsif ($status eq 'UNCHECKEDOUT') {
1.65 albertel 191: $msg.=&checkout_msg;
1.54 www 192: }
1.67 albertel 193: $result.=$msg.'<br />';
194: }
195: } elsif ($target eq 'web') {
196: my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
197: if ($name eq '') {
198: $name=&Apache::lonnet::EXT('resource.title');
199: if ($name eq 'con_lost') { $name = ''; }
1.21 albertel 200: }
1.67 albertel 201: $Apache::lonhomework::name=$name;
202: if ($status eq 'CAN_ANSWER') {
203: # create a page header and exit
204: $result.="$head_tag_start<title>$name</title></head>\n
1.41 albertel 205: $body_tag_start\n
1.36 albertel 206: <form name=\"lonhomework\" method=\"POST\" action=\"".$ENV{'request.uri'}."\">".
207: '<input type="hidden" name="submitted" value="yes" />';
1.67 albertel 208: if ($ENV{'request.state'} eq "construct") {
209: $result.=
210: '<input type="hidden" name="problemmode" value="View" />
211: <input type="submit" name="problemmode" value="Edit" />
212: Random Seed:<input type="text" name="rndseed" width="10" value="'.
1.72 ! albertel 213: $rndseed.'" />
! 214: <input type="submit" name="resetdata" value="Reset Submissions" />
! 215: <hr />';
1.67 albertel 216: }
217: # if we are viewing someone else preserve that info
218: if (defined $ENV{'form.grade_symb'}) {
219: foreach my $field ('symb','courseid','domain','username') {
220: $result .= '<input type="hidden" name="grade_'.$field.
221: '" value="'.$ENV{"form.grade_$field"}.'" />'."\n";
222: }
1.65 albertel 223: }
1.67 albertel 224: } elsif ($status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER'
225: || $status eq 'CLOSED') {
226: $result.=$head_tag_start.
227: "<title>$name</title></head>\n$body_tag_start\n";
1.65 albertel 228: }
1.22 albertel 229: }
1.67 albertel 230: } elsif ($target eq 'edit') {
1.41 albertel 231: $result.=$head_tag_start."</head>".$body_tag_start.
1.67 albertel 232: '<form name="lonhomework" method="POST" action="'.
233: $ENV{'request.uri'}.'">
1.41 albertel 234: <input type="hidden" name="submitted" value="edit" />
235: <input type="hidden" name="problemmode" value="Edit" />
236: <input type="submit" name="problemmode" value="View" />
237: <input type="submit" name="Undo" value="undo" /> <hr />
1.49 albertel 238: <input type="submit" name="submit" value="Submit Changes" /><br />
1.41 albertel 239: ';
1.39 albertel 240: my $temp=&Apache::edit::insertlist($target,$token);
1.36 albertel 241: $result.=$temp;
1.67 albertel 242: } elsif ($target eq 'modified') {
1.37 albertel 243: $result=$token->[4];
244: $result.=&Apache::edit::handle_insert();
1.67 albertel 245: } else {
246: # page_start returned a starting result, delete it if we don't need it
247: $result = '';
1.37 albertel 248: }
1.67 albertel 249: return $result;
1.9 albertel 250: }
251:
252: sub end_problem {
1.40 albertel 253: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.16 albertel 254: my $result='';
1.24 albertel 255: my $status=$Apache::inputtags::status['-1'];
1.68 albertel 256: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ) {
1.28 albertel 257: if ( $target eq 'grade' && $Apache::inputtags::part eq '0' &&
258: $status eq 'CAN_ANSWER') {
1.19 albertel 259: # if part is zero, no <part>s existed, so we need to the grading
260: &Apache::inputtags::grade;
1.68 albertel 261: } elsif ( $target eq 'web' && $Apache::inputtags::part eq '0') {
1.19 albertel 262: # if part is zero, no <part>s existed, so we need show the current
263: # grading status
1.20 albertel 264: $result.= &Apache::inputtags::gradestatus($Apache::inputtags::part);
1.41 albertel 265: }
1.68 albertel 266: if (
267: ($target eq 'web' && ($ENV{'request.state'} ne 'construct')) ||
268: ($target eq 'answer')
269: ) {
1.22 albertel 270: if ($status eq 'CAN_ANSWER') {
271: $result.="</form></body>\n";
1.28 albertel 272: } elsif ($status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {
1.41 albertel 273: $result.="</body>\n";
274: }
1.50 albertel 275: $result.=&Apache::lonxml::xmlend();
1.22 albertel 276: }
1.65 albertel 277: if ($target eq 'grade') {
278: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
279: &finalize_storage();
280: }
281: } elsif ($target eq 'meta') {
1.18 albertel 282: if ($Apache::inputtags::part eq '0') {
1.16 albertel 283: $result=&Apache::response::mandatory_part_meta;
284: }
1.65 albertel 285: } elsif ($target eq 'edit') {
1.34 albertel 286: &Apache::lonxml::debug("in end_problem with $target, edit");
1.48 albertel 287: $result='<br /><input type="submit" name="submit" value="Submit Changes" />';
288: }
289: return $result;
290: }
291:
292: sub start_library {
293: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
294: my ($result,$head_tag_start,$body_tag_start)=
295: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
296: if ($target eq 'edit') {
297: $result.=$head_tag_start."</head>".$body_tag_start.
298: '<form name="lonhomework" method="POST" action="'.$ENV{'request.uri'}.'">
299: <input type="hidden" name="submitted" value="edit" />
300: <input type="hidden" name="problemmode" value="Edit" />
301: <input type="submit" name="problemmode" value="View" />
302: <input type="submit" name="Undo" value="undo" /> <hr />
303: ';
304: my $temp=&Apache::edit::insertlist($target,$token);
305: $result.=$temp;
306: return $result;
307: }
308: if ($target eq 'modified') {
309: $result=$token->[4];
310: $result.=&Apache::edit::handle_insert();
311: return $result;
312: }
313: return '';
314: }
315:
316: sub end_library {
317: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
318: my $result='';
319: if ($target eq 'edit') {
1.34 albertel 320: $result='<br /><input type="submit" name="submit" value="Submit Changes" />';
321: }
1.16 albertel 322: return $result;
1.1 albertel 323: }
324:
325: sub start_block {
1.40 albertel 326: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.1 albertel 327:
1.68 albertel 328: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer') {
1.38 albertel 329: my $code = @$parstack[$#$parstack];
330: $code =~ s/\"//g;
331: $code .=';return $condition;';
332: # print "<br />$code<br />";
333: my $result = &Apache::run::run($code,$safeeval);
334: &Apache::lonxml::debug("block :$code: returned :$result:");
335: if ( ! $result ) {
336: my $skip=&Apache::lonxml::get_all_text("/block",$$parser[$#$parser]);
337: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[$#$parser]");
338: }
1.1 albertel 339: }
340: return "";
341: }
342:
343: sub end_block {
1.38 albertel 344: return '';
1.4 tsai 345: }
346:
347: sub start_while {
1.40 albertel 348: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.4 tsai 349:
350: my $code = @$parstack[$#$parstack];
351: $code =~ s/\"//g;
352: $code .=';return $condition;';
353:
1.5 tsai 354: push( @Apache::structuretags::whileconds, $code);
1.4 tsai 355: my $result = &Apache::run::run($code,$safeeval);
356: my $bodytext=$$parser[$#$parser]->get_text("/while");
1.5 tsai 357: push( @Apache::structuretags::whilebody, $bodytext);
358: if ( $result ) {
1.8 albertel 359: &Apache::lonxml::newparser($parser,\$bodytext);
1.4 tsai 360: }
361: return "";
362: }
363:
364: sub end_while {
1.40 albertel 365: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.5 tsai 366: my $code = pop @Apache::structuretags::whileconds;
367: my $bodytext = pop @Apache::structuretags::whilebody;
368: my $result = &Apache::run::run($code,$safeeval);
369: if ( $result ) {
1.8 albertel 370: &Apache::lonxml::newparser($parser,\$bodytext);
1.5 tsai 371: }
372: return "";
1.1 albertel 373: }
1.6 tsai 374:
375: # <randomlist>
376: # <tag1>..</tag1>
377: # <tag2>..</tag2>
378: # <tag3>..</tag3>
379: # ...
380: # </randomlist>
381: sub start_randomlist {
1.40 albertel 382: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.71 albertel 383: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web') {
384: my $body= &Apache::lonxml::get_all_text("/randomlist",$$parser[$#$parser]);
385: my $b_parser= HTML::TokeParser->new(\$body);
386: my $b_tok;
387: my @randomlist;
388: my $list_item;
389: while($b_tok = $b_parser->get_token() ) {
390: if($b_tok->[0] eq 'S') { # start tag
391: # get content of the tag until matching end tag
392: # get all text upto the matching tag
393: # and push the content into @randomlist
394: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],$b_parser);
395: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
396: push(@randomlist,$list_item);
397: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4], $list_item</b>";
398: }
399: if($b_tok->[0] eq 'T') { # text
400: # what to do with text in between tags?
401: # print "<b>TEXT $b_tok->[1]</b><br />";
402: }
403: # if($b_tok->[0] eq 'E') { # end tag, should not happen
404: # print "<b>END-TAG $b_tok->[1]</b><br />";
405: # }
406: }
1.6 tsai 407:
1.71 albertel 408: my @idx_arr = (0 .. $#randomlist);
409: &Apache::structuretags::shuffle(\@idx_arr);
410: my $bodytext = '';
411: for(0 .. $#randomlist) {
412: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1.6 tsai 413: }
1.71 albertel 414: &Apache::lonxml::newparser($parser,\$bodytext);
1.7 tsai 415: }
1.6 tsai 416: return "";
1.7 tsai 417: }
418:
419: sub shuffle {
420: my $a=shift;
421: my $i;
1.70 albertel 422: if (defined(@$a)) {
423: &Apache::response::setrandomnumber();
424: for($i=@$a;--$i;) {
425: my $j=int rand($i+1);
426: next if $i == $j;
427: @$a[$i,$j] = @$a[$j,$i];
428: }
1.7 tsai 429: }
1.6 tsai 430: }
431:
432: sub end_randomlist {
1.46 albertel 433: return '';
1.6 tsai 434: }
435:
1.11 albertel 436: sub start_part {
1.40 albertel 437: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.39 albertel 438: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.47 albertel 439: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
1.14 albertel 440: $Apache::inputtags::part=$id;
1.18 albertel 441: @Apache::inputtags::responselist = ();
1.51 albertel 442: @Apache::inputtags::previous=();
1.15 www 443: if ($target eq 'meta') {
1.16 albertel 444: return &Apache::response::mandatory_part_meta;
1.68 albertel 445: } elsif ($target eq 'web' || $target eq 'grade' || $target eq 'answer') {
1.55 www 446: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1.23 albertel 447: push (@Apache::inputtags::status,$status);
448: my $expression='$external::datestatus="'.$status.'";';
449: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
450: &Apache::run::run($expression,$safeeval);
451: if ( $status eq 'CLOSED' ) {
1.21 albertel 452: my $bodytext=&Apache::lonxml::get_all_text("/part",$$parser[$#$parser]);
453: if ( $target eq "web" ) {
1.55 www 454: return "<br />Part is not open to be viewed. It $accessmsg<br />";
1.21 albertel 455: }
456: }
1.15 www 457: }
1.19 albertel 458: return '';
1.11 albertel 459: }
460:
461: sub end_part {
1.40 albertel 462: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.18 albertel 463: &Apache::lonxml::debug("in end_part $target ");
1.28 albertel 464: my $status=$Apache::inputtags::status['-1'];
1.23 albertel 465: pop @Apache::inputtags::status;
1.19 albertel 466: if ( $target eq 'meta' ) { return ''; }
1.37 albertel 467: if ( $target eq 'grade' && $status eq 'CAN_ANSWER') {
468: return &Apache::inputtags::grade;
1.28 albertel 469: }
1.37 albertel 470: if ($target eq 'web') {
471: return &Apache::inputtags::gradestatus($Apache::inputtags::part);
472: }
473: return '';
1.11 albertel 474: }
1.1 albertel 475:
1.25 albertel 476: sub start_preduedate {
1.40 albertel 477: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.68 albertel 478: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer') {
1.29 albertel 479: if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
480: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER' ) {
1.26 albertel 481: &Apache::lonxml::get_all_text("/preduedate",$$parser[$#$parser]);
1.24 albertel 482: }
483: }
484: return '';
485: }
486:
1.25 albertel 487: sub end_preduedate {
1.24 albertel 488: return '';
489: }
490:
1.25 albertel 491: sub start_postanswerdate {
1.40 albertel 492: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.34 albertel 493: if ($target eq 'web' || $target eq 'grade') {
1.24 albertel 494: if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.26 albertel 495: &Apache::lonxml::get_all_text("/postanswerdate",$$parser[$#$parser]);
1.24 albertel 496: }
497: }
498: return '';
499: }
500:
1.25 albertel 501: sub end_postanswerdate {
1.24 albertel 502: return '';
503: }
504:
1.25 albertel 505: sub start_notsolved {
1.40 albertel 506: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.68 albertel 507: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer') {
1.24 albertel 508: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
509: &Apache::lonxml::debug("not solved has :$gradestatus:");
510: if ($gradestatus =~ /^correct/) {
511: &Apache::lonxml::debug("skipping");
1.26 albertel 512: &Apache::lonxml::get_all_text("/notsolved",$$parser[$#$parser]);
1.24 albertel 513: }
514: }
515: return '';
516: }
517:
1.25 albertel 518: sub end_notsolved {
1.24 albertel 519: return '';
520: }
521:
522: sub start_solved {
1.40 albertel 523: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.68 albertel 524: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer') {
1.24 albertel 525: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
526: if ($gradestatus !~ /^correct/) {
527: &Apache::lonxml::get_all_text("/solved",$$parser[$#$parser]);
528: }
529: }
530: return '';
531: }
532:
533: sub end_solved {
534: return '';
535: }
1.34 albertel 536:
537: sub start_startouttext {
1.40 albertel 538: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.35 albertel 539: my @result=(''.'');
540: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
541: return (@result);
1.34 albertel 542: }
543: sub end_startouttext {
1.40 albertel 544: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.34 albertel 545: my $result='';
1.35 albertel 546: my $text='';
547:
1.34 albertel 548: if ($target eq 'edit') {
1.70 albertel 549: $text=&Apache::lonxml::get_all_text("endouttext",$$parser[-1]);
1.43 albertel 550: $result.=&Apache::edit::start_table($token)."<tr><td>Text Block</td>
1.42 albertel 551: <td>Delete:".
552: &Apache::edit::deletelist($target,$token)
553: ."</td>
554: <td>".
555: &Apache::edit::insertlist($target,$token).
556: "</td>
557: </tr><tr><td colspan=\"3\">\n".
1.45 albertel 558: &Apache::edit::editfield($token->[1],$text,"",50,4);
1.35 albertel 559: }
560: if ($target eq 'modified') {
561: $text=&Apache::lonxml::get_all_text("endouttext",$$parser['-1']);
562: $result='<startouttext />'.&Apache::edit::modifiedfield();
1.34 albertel 563: }
564: return $result;
565: }
566: sub start_endouttext {
1.40 albertel 567: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.34 albertel 568: my $result='';
1.43 albertel 569: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1.35 albertel 570: if ($target eq "modified") { $result='<endouttext />'; }
1.34 albertel 571: return $result;
572: }
573: sub end_endouttext {
1.40 albertel 574: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.35 albertel 575: my @result=('','');
576: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
577: return (@result);
1.34 albertel 578: }
1.45 albertel 579: sub delete_startouttext {
580: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
581: # my $text=&Apache::lonxml::get_all_text("endouttext",$$parser['-1']);
582: my $text=$$parser['-1']->get_text("/endouttext");
1.69 albertel 583: my $ntoken=$$parser['-1']->get_token();
584: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
585: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1.45 albertel 586: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
587: # they did the last time round
1.69 albertel 588: &Apache::lonxml::increasedepth($ntoken);
589: &Apache::lonxml::decreasedepth($ntoken);
1.45 albertel 590: return 1;
591: }
1.34 albertel 592:
1.1 albertel 593: 1;
594: __END__
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