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