includes/HTMLForm.php

   1 <?php
   2
   3 class HTMLForm {
   4
   5         static $jsAdded = false;
   6
   7         /* The descriptor is an array of arrays.
   8                 i.e. array(
   9                         'fieldname' => array( 'section' => 'section/subsection',
  10                                                                 properties... ),
  11                         ...
  12                 )
  13          */
  14
  15         static $typeMappings = array(
  16                 'text' => 'HTMLTextField',
  17                 'select' => 'HTMLSelectField',
  18                 'radio' => 'HTMLRadioField',
  19                 'multiselect' => 'HTMLMultiSelectField',
  20                 'check' => 'HTMLCheckField',
  21                 'toggle' => 'HTMLCheckField',
  22                 'int' => 'HTMLIntField',
  23                 'float' => 'HTMLFloatField',
  24                 'info' => 'HTMLInfoField',
  25                 'selectorother' => 'HTMLSelectOrOtherField',
  26         );
  27
  28         function __construct( $descriptor, $messagePrefix ) {
  29                 $this->mMessagePrefix = $messagePrefix;
  30
  31                 // Expand out into a tree.
  32                 $loadedDescriptor = array();
  33                 $this->mFlatFields = array();
  34
  35                 foreach( $descriptor as $fieldname => $info ) {
  36                         $section = '';
  37                         if ( isset( $info['section'] ) )
  38                                 $section = $info['section'];
  39
  40                         $info['name'] = $fieldname;
  41
  42                         $field = $this->loadInputFromParameters( $info );
  43                         $field->mParent = $this;
  44
  45                         $setSection =& $loadedDescriptor;
  46                         if( $section ) {
  47                                 $sectionParts = explode( '/', $section );
  48
  49                                 while( count( $sectionParts ) ) {
  50                                         $newName = array_shift( $sectionParts );
  51
  52                                         if ( !isset( $setSection[$newName] ) ) {
  53                                                 $setSection[$newName] = array();
  54                                         }
  55
  56                                         $setSection =& $setSection[$newName];
  57                                 }
  58                         }
  59
  60                         $setSection[$fieldname] = $field;
  61                         $this->mFlatFields[$fieldname] = $field;
  62                 }
  63
  64                 $this->mFieldTree = $loadedDescriptor;
  65
  66                 $this->mShowReset = true;
  67         }
  68
  69         static function addJS() {
  70                 if( self::$jsAdded ) return;
  71
  72                 global $wgOut, $wgStylePath;
  73
  74                 $wgOut->addScriptFile( "$wgStylePath/common/htmlform.js" );
  75         }
  76
  77         static function loadInputFromParameters( $descriptor ) {
  78                 if ( isset( $descriptor['class'] ) ) {
  79                         $class = $descriptor['class'];
  80                 } elseif ( isset( $descriptor['type'] ) ) {
  81                         $class = self::$typeMappings[$descriptor['type']];
  82                         $descriptor['class'] = $class;
  83                 }
  84
  85                 if( !$class ) {
  86                         throw new MWException( "Descriptor with no class: " . print_r( $descriptor, true ) );
  87                 }
  88
  89                 $obj = new $class( $descriptor );
  90
  91                 return $obj;
  92         }
  93
  94         function show() {
  95                 $html = '';
  96
  97                 self::addJS();
  98
  99                 // Load data from the request.
 100                 $this->loadData();
 101
 102                 // Try a submission
 103                 global $wgUser, $wgRequest;
 104                 $editToken = $wgRequest->getVal( 'wpEditToken' );
 105
 106                 $result = false;
 107                 if ( $wgUser->matchEditToken( $editToken ) )
 108                         $result = $this->trySubmit();
 109
 110                 if( $result === true )
 111                         return $result;
 112
 113                 // Display form.
 114                 $this->displayForm( $result );
 115         }
 116
 117         /** Return values:
 118           * TRUE == Successful submission
 119           * FALSE == No submission attempted
 120           * Anything else == Error to display.
 121           */
 122         function trySubmit() {
 123                 // Check for validation
 124                 foreach( $this->mFlatFields as $fieldname => $field ) {
 125                         if ( !empty( $field->mParams['nodata'] ) ) continue;
 126                         if ( $field->validate( $this->mFieldData[$fieldname],
 127                                         $this->mFieldData ) !== true ) {
 128                                 return isset( $this->mValidationErrorMessage ) ?
 129                                                 $this->mValidationErrorMessage : array( 'htmlform-invalid-input' );
 130                         }
 131                 }
 132
 133                 $callback = $this->mSubmitCallback;
 134
 135                 $data = $this->filterDataForSubmit( $this->mFieldData );
 136
 137                 $res = call_user_func( $callback, $data );
 138
 139                 return $res;
 140         }
 141
 142         function setSubmitCallback( $cb ) {
 143                 $this->mSubmitCallback = $cb;
 144         }
 145
 146         function setValidationErrorMessage( $msg ) {
 147                 $this->mValidationErrorMessage = $msg;
 148         }
 149
 150         function setIntro( $msg ) {
 151                 $this->mIntro = $msg;
 152         }
 153
 154         function displayForm( $submitResult ) {
 155                 global $wgOut;
 156
 157                 if ( $submitResult !== false ) {
 158                         $this->displayErrors( $submitResult );
 159                 }
 160
 161                 if ( isset( $this->mIntro ) ) {
 162                         $wgOut->addHTML( $this->mIntro );
 163                 }
 164
 165                 $html = $this->getBody();
 166
 167                 // Hidden fields
 168                 $html .= $this->getHiddenFields();
 169
 170                 // Buttons
 171                 $html .= $this->getButtons();
 172
 173                 $html = $this->wrapForm( $html );
 174
 175                 $wgOut->addHTML( $html );
 176         }
 177
 178         function wrapForm( $html ) {
 179                 return Xml::tags(
 180                         'form',
 181                         array(
 182                                 'action' => $this->getTitle()->getFullURL(),
 183                                 'method' => 'post',
 184                         ),
 185                         $html
 186                 );
 187         }
 188
 189         function getHiddenFields() {
 190                 global $wgUser;
 191                 $html = '';
 192
 193                 $html .= Xml::hidden( 'wpEditToken', $wgUser->editToken() ) . "\n";
 194                 $html .= Xml::hidden( 'title', $this->getTitle() ) . "\n";
 195
 196                 return $html;
 197         }
 198
 199         function getButtons() {
 200                 $html = '';
 201
 202                 $attribs = array();
 203
 204                 if ( isset( $this->mSubmitID ) )
 205                         $attribs['id'] = $this->mSubmitID;
 206
 207                 $attribs['class'] = 'mw-htmlform-submit';
 208
 209                 $html .= Xml::submitButton( $this->getSubmitText(), $attribs ) . "\n";
 210
 211                 if( $this->mShowReset ) {
 212                         $html .= Xml::element(
 213                                 'input',
 214                                 array(
 215                                         'type' => 'reset',
 216                                         'value' => wfMsg( 'htmlform-reset' )
 217                                 )
 218                         ) . "\n";
 219                 }
 220
 221                 return $html;
 222         }
 223
 224         function getBody() {
 225                 return $this->displaySection( $this->mFieldTree );
 226         }
 227
 228         function displayErrors( $errors ) {
 229                 if ( is_array( $errors ) ) {
 230                         $errorstr = $this->formatErrors( $errors );
 231                 } else {
 232                         $errorstr = $errors;
 233                 }
 234
 235                 $errorstr = Xml::tags( 'div', array( 'class' => 'error' ), $errorstr );
 236
 237                 global $wgOut;
 238                 $wgOut->addHTML( $errorstr );
 239         }
 240
 241         static function formatErrors( $errors ) {
 242                 $errorstr = '';
 243                 foreach ( $errors as $error ) {
 244                         if( is_array( $error ) ) {
 245                                 $msg = array_shift( $error );
 246                         } else {
 247                                 $msg = $error;
 248                                 $error = array();
 249                         }
 250                         $errorstr .= Xml::tags(
 251                                 'li',
 252                                 null,
 253                                 wfMsgExt( $msg, array( 'parseinline' ), $error )
 254                         );
 255                 }
 256
 257                 $errorstr = Xml::tags( 'ul', null, $errorstr );
 258
 259                 return $errorstr;
 260         }
 261
 262         function setSubmitText( $t ) {
 263                 $this->mSubmitText = $t;
 264         }
 265
 266         function getSubmitText() {
 267                 return isset( $this->mSubmitText ) ? $this->mSubmitText : wfMsg( 'htmlform-submit' );
 268         }
 269
 270         function setSubmitID( $t ) {
 271                 $this->mSubmitID = $t;
 272         }
 273
 274         function setMessagePrefix( $p ) {
 275                 $this->mMessagePrefix = $p;
 276         }
 277
 278         function setTitle( $t ) {
 279                 $this->mTitle = $t;
 280         }
 281
 282         function getTitle() {
 283                 return $this->mTitle;
 284         }
 285
 286         function displaySection( $fields ) {
 287                 $tableHtml = '';
 288                 $subsectionHtml = '';
 289                 $hasLeftColumn = false;
 290
 291                 foreach( $fields as $key => $value ) {
 292                         if ( is_object( $value ) ) {
 293                                 $v = empty( $value->mParams['nodata'] )
 294                                                         ? $this->mFieldData[$key]
 295                                                         : $value->getDefault();
 296                                 $tableHtml .= $value->getTableRow( $v );
 297
 298                                 if( $value->getLabel() != '&nbsp;' )
 299                                         $hasLeftColumn = true;
 300                         } elseif ( is_array( $value ) ) {
 301                                 $section = $this->displaySection( $value );
 302                                 $legend = wfMsg( "{$this->mMessagePrefix}-$key" );
 303                                 $subsectionHtml .= Xml::fieldset( $legend, $section ) . "\n";
 304                         }
 305                 }
 306
 307                 $classes = array();
 308                 if( !$hasLeftColumn ) // Avoid strange spacing when no labels exist
 309                         $classes[] = 'mw-htmlform-nolabel';
 310                 $classes = implode( ' ', $classes );
 311
 312                 $tableHtml = "<table class='$classes'><tbody>\n$tableHtml\n</tbody></table>\n";
 313
 314                 return $subsectionHtml . "\n" . $tableHtml;
 315         }
 316
 317         function loadData() {
 318                 global $wgRequest;
 319
 320                 $fieldData = array();
 321
 322                 foreach( $this->mFlatFields as $fieldname => $field ) {
 323                         if ( !empty( $field->mParams['nodata'] ) ) continue;
 324                         if ( !empty( $field->mParams['disabled'] ) ) {
 325                                 $fieldData[$fieldname] = $field->getDefault();
 326                         } else {
 327                                 $fieldData[$fieldname] = $field->loadDataFromRequest( $wgRequest );
 328                         }
 329                 }
 330
 331                 // Filter data.
 332                 foreach( $fieldData as $name => &$value ) {
 333                         $field = $this->mFlatFields[$name];
 334                         $value = $field->filter( $value, $this->mFlatFields );
 335                 }
 336
 337                 $this->mFieldData = $fieldData;
 338         }
 339
 340         function importData( $fieldData ) {
 341                 // Filter data.
 342                 foreach( $fieldData as $name => &$value ) {
 343                         $field = $this->mFlatFields[$name];
 344                         $value = $field->filter( $value, $this->mFlatFields );
 345                 }
 346
 347                 foreach( $this->mFlatFields as $fieldname => $field ) {
 348                         if ( !isset( $fieldData[$fieldname] ) )
 349                                 $fieldData[$fieldname] = $field->getDefault();
 350                 }
 351
 352                 $this->mFieldData = $fieldData;
 353         }
 354
 355         function suppressReset( $suppressReset = true ) {
 356                 $this->mShowReset = !$suppressReset;
 357         }
 358
 359         function filterDataForSubmit( $data ) {
 360                 return $data;
 361         }
 362 }
 363
 364 abstract class HTMLFormField {
 365         abstract function getInputHTML( $value );
 366
 367         function validate( $value, $alldata ) {
 368                 if ( isset( $this->mValidationCallback ) ) {
 369                         return call_user_func( $this->mValidationCallback, $value, $alldata );
 370                 }
 371
 372                 return true;
 373         }
 374
 375         function filter( $value, $alldata ) {
 376                 if( isset( $this->mFilterCallback ) ) {
 377                         $value = call_user_func( $this->mFilterCallback, $value, $alldata );
 378                 }
 379
 380                 return $value;
 381         }
 382
 383         function loadDataFromRequest( $request ) {
 384                 if( $request->getCheck( $this->mName ) ) {
 385                         return $request->getText( $this->mName );
 386                 } else {
 387                         return $this->getDefault();
 388                 }
 389         }
 390
 391         function __construct( $params ) {
 392                 $this->mParams = $params;
 393
 394                 if( isset( $params['label-message'] ) ) {
 395                         $msgInfo = $params['label-message'];
 396
 397                         if ( is_array( $msgInfo ) ) {
 398                                 $msg = array_shift( $msgInfo );
 399                         } else {
 400                                 $msg = $msgInfo;
 401                                 $msgInfo = array();
 402                         }
 403
 404                         $this->mLabel = wfMsgExt( $msg, 'parseinline', $msgInfo );
 405                 } elseif ( isset( $params['label'] ) ) {
 406                         $this->mLabel = $params['label'];
 407                 }
 408
 409                 if ( isset( $params['name'] ) ) {
 410                         $this->mName = 'wp'.$params['name'];
 411                         $this->mID = 'mw-input-'.$params['name'];
 412                 }
 413
 414                 if ( isset( $params['default'] ) ) {
 415                         $this->mDefault = $params['default'];
 416                 }
 417
 418                 if ( isset( $params['id'] ) ) {
 419                         $this->mID = $params['id'];
 420                 }
 421
 422                 if ( isset( $params['validation-callback'] ) ) {
 423                         $this->mValidationCallback = $params['validation-callback'];
 424                 }
 425
 426                 if ( isset( $params['filter-callback'] ) ) {
 427                         $this->mFilterCallback = $params['filter-callback'];
 428                 }
 429         }
 430
 431         function getTableRow( $value ) {
 432                 // Check for invalid data.
 433                 global $wgRequest;
 434
 435                 $errors = $this->validate( $value, $this->mParent->mFieldData );
 436                 if ( $errors === true || !$wgRequest->wasPosted() ) {
 437                         $errors = '';
 438                 } else {
 439                         $errors = Xml::tags( 'span', array( 'class' => 'error' ), $errors );
 440                 }
 441
 442                 $html = '';
 443
 444                 $html .= Xml::tags( 'td', array( 'class' => 'mw-label' ),
 445                                         Xml::tags( 'label', array( 'for' => $this->mID ), $this->getLabel() )
 446                                 );
 447                 $html .= Xml::tags( 'td', array( 'class' => 'mw-input' ),
 448                                                         $this->getInputHTML( $value ) ."\n$errors" );
 449
 450                 $fieldType = get_class( $this );
 451
 452                 $html = Xml::tags( 'tr', array( 'class' => "mw-htmlform-field-$fieldType" ),
 453                                                         $html ) . "\n";
 454
 455                 // Help text
 456                 if ( isset( $this->mParams['help-message'] ) ) {
 457                         $msg = $this->mParams['help-message'];
 458
 459                         $text = wfMsgExt( $msg, 'parseinline' );
 460
 461                         if( !wfEmptyMsg( $msg, $text ) ) {
 462                                 $row = Xml::tags( 'td', array( 'colspan' => 2, 'class' => 'htmlform-tip' ),
 463                                                         $text );
 464
 465                                 $row = Xml::tags( 'tr', null, $row );
 466
 467                                 $html .= "$row\n";
 468                         }
 469                 }
 470
 471                 return $html;
 472         }
 473
 474         function getLabel() {
 475                 return $this->mLabel;
 476         }
 477
 478         function getDefault() {
 479                 if ( isset( $this->mDefault ) ) {
 480                         return $this->mDefault;
 481                 } else {
 482                         return null;
 483                 }
 484         }
 485
 486         static function flattenOptions( $options ) {
 487                 $flatOpts = array();
 488
 489                 foreach( $options as $key => $value ) {
 490                         if ( is_array( $value ) ) {
 491                                 $flatOpts = array_merge( $flatOpts, self::flattenOptions( $value ) );
 492                         } else {
 493                                 $flatOpts[] = $value;
 494                         }
 495                 }
 496
 497                 return $flatOpts;
 498         }
 499 }
 500
 501 class HTMLTextField extends HTMLFormField {
 502
 503         function getSize() {
 504                 return isset( $this->mParams['size'] ) ? $this->mParams['size'] : 45;
 505         }
 506
 507         function getInputHTML( $value ) {
 508                 $attribs = array( 'id' => $this->mID );
 509
 510                 if ( isset( $this->mParams['maxlength'] ) ) {
 511                         $attribs['maxlength'] = $this->mParams['maxlength'];
 512                 }
 513
 514                 if( !empty( $this->mParams['disabled'] ) ) {
 515                         $attribs['disabled'] = 'disabled';
 516                 }
 517
 518                 return Xml::input(
 519                         $this->mName,
 520                         $this->getSize(),
 521                         $value,
 522                         $attribs
 523                 );
 524         }
 525
 526 }
 527
 528 class HTMLFloatField extends HTMLTextField {
 529         function getSize() {
 530                 return isset( $this->mParams['size'] ) ? $this->mParams['size'] : 20;
 531         }
 532
 533         function validate( $value, $alldata ) {
 534                 $p = parent::validate( $value, $alldata );
 535
 536                 if ( $p !== true ) return $p;
 537
 538                 if ( floatval( $value ) != $value ) {
 539                         return wfMsgExt( 'htmlform-float-invalid', 'parse' );
 540                 }
 541
 542                 $in_range = true;
 543
 544                 # The "int" part of these message names is rather confusing.  They make
 545                 # equal sense for all numbers.
 546                 if ( isset( $this->mParams['min'] ) ) {
 547                         $min = $this->mParams['min'];
 548                         if ( $min > $value )
 549                                 return wfMsgExt( 'htmlform-int-toolow', 'parse', array( $min ) );
 550                 }
 551
 552                 if ( isset( $this->mParams['max'] ) ) {
 553                         $max = $this->mParams['max'];
 554                         if( $max < $value )
 555                                 return wfMsgExt( 'htmlform-int-toohigh', 'parse', array( $max ) );
 556                 }
 557
 558                 return true;
 559         }
 560 }
 561
 562 class HTMLIntField extends HTMLFloatField {
 563         function validate( $value, $alldata ) {
 564                 $p = parent::validate( $value, $alldata );
 565
 566                 if ( $p !== true ) return $p;
 567
 568                 if ( intval( $value ) != $value ) {
 569                         return wfMsgExt( 'htmlform-int-invalid', 'parse' );
 570                 }
 571
 572                 return true;
 573         }
 574 }
 575
 576 class HTMLCheckField extends HTMLFormField {
 577         function getInputHTML( $value ) {
 578                 if ( !empty( $this->mParams['invert'] ) )
 579                         $value = !$value;
 580
 581                 $attr = array( 'id' => $this->mID );
 582                 if( !empty( $this->mParams['disabled'] ) ) {
 583                         $attr['disabled'] = 'disabled';
 584                 }
 585
 586                 return Xml::check( $this->mName, $value, $attr ) . '&nbsp;' .
 587                                 Xml::tags( 'label', array( 'for' => $this->mID ), $this->mLabel );
 588         }
 589
 590         function getLabel() {
 591                 return '&nbsp;'; // In the right-hand column.
 592         }
 593
 594         function loadDataFromRequest( $request ) {
 595                 $invert = false;
 596                 if ( isset( $this->mParams['invert'] ) && $this->mParams['invert'] ) {
 597                         $invert = true;
 598                 }
 599
 600                 // GetCheck won't work like we want for checks.
 601                 if( $request->getCheck( 'wpEditToken' ) ) {
 602                         // XOR has the following truth table, which is what we want
 603                         // INVERT VALUE | OUTPUT
 604                         // true   true  | false
 605                         // false  true  | true
 606                         // false  false | false
 607                         // true   false | true
 608                         return $request->getBool( $this->mName ) xor $invert;
 609                 } else {
 610                         return $this->getDefault();
 611                 }
 612         }
 613 }
 614
 615 class HTMLSelectField extends HTMLFormField {
 616
 617         function validate( $value, $alldata ) {
 618                 $p = parent::validate( $value, $alldata );
 619                 if( $p !== true ) return $p;
 620
 621                 $validOptions = HTMLFormField::flattenOptions( $this->mParams['options'] );
 622                 if ( in_array( $value, $validOptions ) )
 623                         return true;
 624                 else
 625                         return wfMsgExt( 'htmlform-select-badoption', 'parseinline' );
 626         }
 627
 628         function getInputHTML( $value ) {
 629                 $select = new XmlSelect( $this->mName, $this->mID, strval( $value ) );
 630
 631                 // If one of the options' 'name' is int(0), it is automatically selected.
 632                 //  because PHP sucks and things int(0) == 'some string'.
 633                 //  Working around this by forcing all of them to strings.
 634                 $options = array_map( 'strval', $this->mParams['options'] );
 635
 636                 if( !empty( $this->mParams['disabled'] ) ) {
 637                         $select->setAttribute( 'disabled', 'disabled' );
 638                 }
 639
 640                 $select->addOptions( $options );
 641
 642                 return $select->getHTML();
 643         }
 644 }
 645
 646 class HTMLSelectOrOtherField extends HTMLTextField {
 647         static $jsAdded = false;
 648
 649         function __construct( $params ) {
 650                 if( !in_array( 'other', $params['options'] ) ) {
 651                         $params['options'][wfMsg( 'htmlform-selectorother-other' )] = 'other';
 652                 }
 653
 654                 parent::__construct( $params );
 655         }
 656
 657         function getInputHTML( $value ) {
 658                 $valInSelect = false;
 659
 660                 if( $value !== false )
 661                         $valInSelect = in_array( $value,
 662                                                         HTMLFormField::flattenOptions( $this->mParams['options'] ) );
 663
 664                 $selected = $valInSelect ? $value : 'other';
 665
 666                 $select = new XmlSelect( $this->mName, $this->mID, $selected );
 667                 $select->addOptions( array_map( 'strval', $this->mParams['options'] ) );
 668
 669                 $select->setAttribute( 'class', 'mw-htmlform-select-or-other' );
 670
 671                 $tbAttribs = array( 'id' => $this->mID . '-other' );
 672                 if( !empty( $this->mParams['disabled'] ) ) {
 673                         $select->setAttribute( 'disabled', 'disabled' );
 674                         $tbAttribs['disabled'] = 'disabled';
 675                 }
 676
 677                 $select = $select->getHTML();
 678
 679                 if ( isset( $this->mParams['maxlength'] ) ) {
 680                         $tbAttribs['maxlength'] = $this->mParams['maxlength'];
 681                 }
 682
 683                 $textbox = Xml::input( $this->mName . '-other',
 684                                                         $this->getSize(),
 685                                                         $valInSelect ? '' : $value,
 686                                                         $tbAttribs );
 687
 688                 return "$select<br/>\n$textbox";
 689         }
 690
 691         function loadDataFromRequest( $request ) {
 692                 if( $request->getCheck( $this->mName ) ) {
 693                         $val = $request->getText( $this->mName );
 694
 695                         if( $val == 'other' ) {
 696                                 $val = $request->getText( $this->mName . '-other' );
 697                         }
 698
 699                         return $val;
 700                 } else {
 701                         return $this->getDefault();
 702                 }
 703         }
 704 }
 705
 706 class HTMLMultiSelectField extends HTMLFormField {
 707         function validate( $value, $alldata ) {
 708                 $p = parent::validate( $value, $alldata );
 709                 if( $p !== true ) return $p;
 710
 711                 if( !is_array( $value ) ) return false;
 712
 713                 // If all options are valid, array_intersect of the valid options and the provided
 714                 //  options will return the provided options.
 715                 $validOptions = HTMLFormField::flattenOptions( $this->mParams['options'] );
 716
 717                 $validValues = array_intersect( $value, $validOptions );
 718                 if ( count( $validValues ) == count( $value ) )
 719                         return true;
 720                 else
 721                         return wfMsgExt( 'htmlform-select-badoption', 'parseinline' );
 722         }
 723
 724         function getInputHTML( $value ) {
 725                 $html = $this->formatOptions( $this->mParams['options'], $value );
 726
 727                 return $html;
 728         }
 729
 730         function formatOptions( $options, $value ) {
 731                 $html = '';
 732
 733                 $attribs = array();
 734                 if ( !empty( $this->mParams['disabled'] ) ) {
 735                         $attribs['disabled'] = 'disabled';
 736                 }
 737
 738                 foreach( $options as $label => $info ) {
 739                         if( is_array( $info ) ) {
 740                                 $html .= Xml::tags( 'h1', null, $label ) . "\n";
 741                                 $html .= $this->formatOptions( $info, $value );
 742                         } else {
 743                                 $thisAttribs = array( 'id' => $this->mID . "-$info", 'value' => $info );
 744
 745                                 $checkbox = Xml::check( $this->mName . '[]', in_array( $info, $value ),
 746                                                                 $attribs + $thisAttribs );
 747                                 $checkbox .= '&nbsp;' . Xml::tags( 'label', array( 'for' => $this->mID . "-$info" ), $label );
 748
 749                                 $html .= $checkbox . '<br />';
 750                         }
 751                 }
 752
 753                 return $html;
 754         }
 755
 756         function loadDataFromRequest( $request ) {
 757                 // won't work with getCheck
 758                 if( $request->getCheck( 'wpEditToken' ) ) {
 759                         $arr = $request->getArray( $this->mName );
 760
 761                         if( !$arr )
 762                                 $arr = array();
 763
 764                         return $arr;
 765                 } else {
 766                         return $this->getDefault();
 767                 }
 768         }
 769
 770         function getDefault() {
 771                 if ( isset( $this->mDefault ) ) {
 772                         return $this->mDefault;
 773                 } else {
 774                         return array();
 775                 }
 776         }
 777 }
 778
 779 class HTMLRadioField extends HTMLFormField {
 780         function validate( $value, $alldata ) {
 781                 $p = parent::validate( $value, $alldata );
 782                 if( $p !== true ) return $p;
 783
 784                 if( !is_string( $value ) && !is_int( $value ) )
 785                         return false;
 786
 787                 $validOptions = HTMLFormField::flattenOptions( $this->mParams['options'] );
 788
 789                 if ( in_array( $value, $validOptions ) )
 790                         return true;
 791                 else
 792                         return wfMsgExt( 'htmlform-select-badoption', 'parseinline' );
 793         }
 794
 795         function getInputHTML( $value ) {
 796                 $html = $this->formatOptions( $this->mParams['options'], $value );
 797
 798                 return $html;
 799         }
 800
 801         function formatOptions( $options, $value ) {
 802                 $html = '';
 803
 804                 $attribs = array();
 805                 if ( !empty( $this->mParams['disabled'] ) ) {
 806                         $attribs['disabled'] = 'disabled';
 807                 }
 808
 809                 foreach( $options as $label => $info ) {
 810                         if( is_array( $info ) ) {
 811                                 $html .= Xml::tags( 'h1', null, $label ) . "\n";
 812                                 $html .= $this->formatOptions( $info, $value );
 813                         } else {
 814                                 $html .= Xml::radio( $this->mName, $info, $info == $value,
 815                                                                                 $attribs + array( 'id' => $this->mID . "-$info" ) );
 816                                 $html .= '&nbsp;' .
 817                                                 Xml::tags( 'label', array( 'for' => $this->mID . "-$info" ), $label );
 818
 819                                 $html .= "<br/>\n";
 820                         }
 821                 }
 822
 823                 return $html;
 824         }
 825 }
 826
 827 class HTMLInfoField extends HTMLFormField {
 828         function __construct( $info ) {
 829                 $info['nodata'] = true;
 830
 831                 parent::__construct( $info );
 832         }
 833
 834         function getInputHTML( $value ) {
 835                 return !empty( $this->mParams['raw'] ) ? $value : htmlspecialchars( $value );
 836         }
 837
 838         function getTableRow( $value ) {
 839                 if ( !empty( $this->mParams['rawrow'] ) ) {
 840                         return $value;
 841                 }
 842
 843                 return parent::getTableRow( $value );
 844         }
 845 }