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                 # HTMLTextField will output the correct type="" attribute automagically.
  27                 # There are about four zillion other HTML 5 input types, like url, but
  28                 # we don't use those at the moment, so no point in adding all of them.
  29                 'email' => 'HTMLTextField',
  30         );
  31
  32         function __construct( $descriptor, $messagePrefix ) {
  33                 $this->mMessagePrefix = $messagePrefix;
  34
  35                 // Expand out into a tree.
  36                 $loadedDescriptor = array();
  37                 $this->mFlatFields = array();
  38
  39                 foreach( $descriptor as $fieldname => $info ) {
  40                         $section = '';
  41                         if ( isset( $info['section'] ) )
  42                                 $section = $info['section'];
  43
  44                         $info['name'] = $fieldname;
  45
  46                         $field = $this->loadInputFromParameters( $info );
  47                         $field->mParent = $this;
  48
  49                         $setSection =& $loadedDescriptor;
  50                         if( $section ) {
  51                                 $sectionParts = explode( '/', $section );
  52
  53                                 while( count( $sectionParts ) ) {
  54                                         $newName = array_shift( $sectionParts );
  55
  56                                         if ( !isset( $setSection[$newName] ) ) {
  57                                                 $setSection[$newName] = array();
  58                                         }
  59
  60                                         $setSection =& $setSection[$newName];
  61                                 }
  62                         }
  63
  64                         $setSection[$fieldname] = $field;
  65                         $this->mFlatFields[$fieldname] = $field;
  66                 }
  67
  68                 $this->mFieldTree = $loadedDescriptor;
  69
  70                 $this->mShowReset = true;
  71         }
  72
  73         static function addJS() {
  74                 if( self::$jsAdded ) return;
  75
  76                 global $wgOut;
  77
  78                 $wgOut->addScriptClass( 'htmlform' );
  79         }
  80
  81         static function loadInputFromParameters( $descriptor ) {
  82                 if ( isset( $descriptor['class'] ) ) {
  83                         $class = $descriptor['class'];
  84                 } elseif ( isset( $descriptor['type'] ) ) {
  85                         $class = self::$typeMappings[$descriptor['type']];
  86                         $descriptor['class'] = $class;
  87                 }
  88
  89                 if( !$class ) {
  90                         throw new MWException( "Descriptor with no class: " . print_r( $descriptor, true ) );
  91                 }
  92
  93                 $obj = new $class( $descriptor );
  94
  95                 return $obj;
  96         }
  97
  98         function show() {
  99                 $html = '';
 100
 101                 self::addJS();
 102
 103                 // Load data from the request.
 104                 $this->loadData();
 105
 106                 // Try a submission
 107                 global $wgUser, $wgRequest;
 108                 $editToken = $wgRequest->getVal( 'wpEditToken' );
 109
 110                 $result = false;
 111                 if ( $wgUser->matchEditToken( $editToken ) )
 112                         $result = $this->trySubmit();
 113
 114                 if( $result === true )
 115                         return $result;
 116
 117                 // Display form.
 118                 $this->displayForm( $result );
 119         }
 120
 121         /** Return values:
 122           * TRUE == Successful submission
 123           * FALSE == No submission attempted
 124           * Anything else == Error to display.
 125           */
 126         function trySubmit() {
 127                 // Check for validation
 128                 foreach( $this->mFlatFields as $fieldname => $field ) {
 129                         if ( !empty( $field->mParams['nodata'] ) ) continue;
 130                         if ( $field->validate( $this->mFieldData[$fieldname],
 131                                         $this->mFieldData ) !== true ) {
 132                                 return isset( $this->mValidationErrorMessage ) ?
 133                                                 $this->mValidationErrorMessage : array( 'htmlform-invalid-input' );
 134                         }
 135                 }
 136
 137                 $callback = $this->mSubmitCallback;
 138
 139                 $data = $this->filterDataForSubmit( $this->mFieldData );
 140
 141                 $res = call_user_func( $callback, $data );
 142
 143                 return $res;
 144         }
 145
 146         function setSubmitCallback( $cb ) {
 147                 $this->mSubmitCallback = $cb;
 148         }
 149
 150         function setValidationErrorMessage( $msg ) {
 151                 $this->mValidationErrorMessage = $msg;
 152         }
 153
 154         function setIntro( $msg ) {
 155                 $this->mIntro = $msg;
 156         }
 157
 158         function displayForm( $submitResult ) {
 159                 global $wgOut;
 160
 161                 if ( $submitResult !== false ) {
 162                         $this->displayErrors( $submitResult );
 163                 }
 164
 165                 if ( isset( $this->mIntro ) ) {
 166                         $wgOut->addHTML( $this->mIntro );
 167                 }
 168
 169                 $html = $this->getBody();
 170
 171                 // Hidden fields
 172                 $html .= $this->getHiddenFields();
 173
 174                 // Buttons
 175                 $html .= $this->getButtons();
 176
 177                 $html = $this->wrapForm( $html );
 178
 179                 $wgOut->addHTML( $html );
 180         }
 181
 182         function wrapForm( $html ) {
 183                 return Xml::tags(
 184                         'form',
 185                         array(
 186                                 'action' => $this->getTitle()->getFullURL(),
 187                                 'method' => 'post',
 188                         ),
 189                         $html
 190                 );
 191         }
 192
 193         function getHiddenFields() {
 194                 global $wgUser;
 195                 $html = '';
 196
 197                 $html .= Xml::hidden( 'wpEditToken', $wgUser->editToken() ) . "\n";
 198                 $html .= Xml::hidden( 'title', $this->getTitle() ) . "\n";
 199
 200                 return $html;
 201         }
 202
 203         function getButtons() {
 204                 $html = '';
 205
 206                 $attribs = array();
 207
 208                 if ( isset( $this->mSubmitID ) )
 209                         $attribs['id'] = $this->mSubmitID;
 210
 211                 $attribs['class'] = 'mw-htmlform-submit';
 212
 213                 $html .= Xml::submitButton( $this->getSubmitText(), $attribs ) . "\n";
 214
 215                 if( $this->mShowReset ) {
 216                         $html .= Xml::element(
 217                                 'input',
 218                                 array(
 219                                         'type' => 'reset',
 220                                         'value' => wfMsg( 'htmlform-reset' )
 221                                 )
 222                         ) . "\n";
 223                 }
 224
 225                 return $html;
 226         }
 227
 228         function getBody() {
 229                 return $this->displaySection( $this->mFieldTree );
 230         }
 231
 232         function displayErrors( $errors ) {
 233                 if ( is_array( $errors ) ) {
 234                         $errorstr = $this->formatErrors( $errors );
 235                 } else {
 236                         $errorstr = $errors;
 237                 }
 238
 239                 $errorstr = Xml::tags( 'div', array( 'class' => 'error' ), $errorstr );
 240
 241                 global $wgOut;
 242                 $wgOut->addHTML( $errorstr );
 243         }
 244
 245         static function formatErrors( $errors ) {
 246                 $errorstr = '';
 247                 foreach ( $errors as $error ) {
 248                         if( is_array( $error ) ) {
 249                                 $msg = array_shift( $error );
 250                         } else {
 251                                 $msg = $error;
 252                                 $error = array();
 253                         }
 254                         $errorstr .= Xml::tags(
 255                                 'li',
 256                                 null,
 257                                 wfMsgExt( $msg, array( 'parseinline' ), $error )
 258                         );
 259                 }
 260
 261                 $errorstr = Xml::tags( 'ul', null, $errorstr );
 262
 263                 return $errorstr;
 264         }
 265
 266         function setSubmitText( $t ) {
 267                 $this->mSubmitText = $t;
 268         }
 269
 270         function getSubmitText() {
 271                 return isset( $this->mSubmitText ) ? $this->mSubmitText : wfMsg( 'htmlform-submit' );
 272         }
 273
 274         function setSubmitID( $t ) {
 275                 $this->mSubmitID = $t;
 276         }
 277
 278         function setMessagePrefix( $p ) {
 279                 $this->mMessagePrefix = $p;
 280         }
 281
 282         function setTitle( $t ) {
 283                 $this->mTitle = $t;
 284         }
 285
 286         function getTitle() {
 287                 return $this->mTitle;
 288         }
 289
 290         function displaySection( $fields ) {
 291                 $tableHtml = '';
 292                 $subsectionHtml = '';
 293                 $hasLeftColumn = false;
 294
 295                 foreach( $fields as $key => $value ) {
 296                         if ( is_object( $value ) ) {
 297                                 $v = empty( $value->mParams['nodata'] )
 298                                                         ? $this->mFieldData[$key]
 299                                                         : $value->getDefault();
 300                                 $tableHtml .= $value->getTableRow( $v );
 301
 302                                 if( $value->getLabel() != '&nbsp;' )
 303                                         $hasLeftColumn = true;
 304                         } elseif ( is_array( $value ) ) {
 305                                 $section = $this->displaySection( $value );
 306                                 $legend = wfMsg( "{$this->mMessagePrefix}-$key" );
 307                                 $subsectionHtml .= Xml::fieldset( $legend, $section ) . "\n";
 308                         }
 309                 }
 310
 311                 $classes = array();
 312                 if( !$hasLeftColumn ) // Avoid strange spacing when no labels exist
 313                         $classes[] = 'mw-htmlform-nolabel';
 314                 $classes = implode( ' ', $classes );
 315
 316                 $tableHtml = "<table class='$classes'><tbody>\n$tableHtml\n</tbody></table>\n";
 317
 318                 return $subsectionHtml . "\n" . $tableHtml;
 319         }
 320
 321         function loadData() {
 322                 global $wgRequest;
 323
 324                 $fieldData = array();
 325
 326                 foreach( $this->mFlatFields as $fieldname => $field ) {
 327                         if ( !empty( $field->mParams['nodata'] ) ) continue;
 328                         if ( !empty( $field->mParams['disabled'] ) ) {
 329                                 $fieldData[$fieldname] = $field->getDefault();
 330                         } else {
 331                                 $fieldData[$fieldname] = $field->loadDataFromRequest( $wgRequest );
 332                         }
 333                 }
 334
 335                 // Filter data.
 336                 foreach( $fieldData as $name => &$value ) {
 337                         $field = $this->mFlatFields[$name];
 338                         $value = $field->filter( $value, $this->mFlatFields );
 339                 }
 340
 341                 $this->mFieldData = $fieldData;
 342         }
 343
 344         function importData( $fieldData ) {
 345                 // Filter data.
 346                 foreach( $fieldData as $name => &$value ) {
 347                         $field = $this->mFlatFields[$name];
 348                         $value = $field->filter( $value, $this->mFlatFields );
 349                 }
 350
 351                 foreach( $this->mFlatFields as $fieldname => $field ) {
 352                         if ( !isset( $fieldData[$fieldname] ) )
 353                                 $fieldData[$fieldname] = $field->getDefault();
 354                 }
 355
 356                 $this->mFieldData = $fieldData;
 357         }
 358
 359         function suppressReset( $suppressReset = true ) {
 360                 $this->mShowReset = !$suppressReset;
 361         }
 362
 363         function filterDataForSubmit( $data ) {
 364                 return $data;
 365         }
 366 }
 367
 368 abstract class HTMLFormField {
 369         abstract function getInputHTML( $value );
 370
 371         function validate( $value, $alldata ) {
 372                 if ( isset( $this->mValidationCallback ) ) {
 373                         return call_user_func( $this->mValidationCallback, $value, $alldata );
 374                 }
 375
 376                 return true;
 377         }
 378
 379         function filter( $value, $alldata ) {
 380                 if( isset( $this->mFilterCallback ) ) {
 381                         $value = call_user_func( $this->mFilterCallback, $value, $alldata );
 382                 }
 383
 384                 return $value;
 385         }
 386
 387         function loadDataFromRequest( $request ) {
 388                 if( $request->getCheck( $this->mName ) ) {
 389                         return $request->getText( $this->mName );
 390                 } else {
 391                         return $this->getDefault();
 392                 }
 393         }
 394
 395         function __construct( $params ) {
 396                 $this->mParams = $params;
 397
 398                 if( isset( $params['label-message'] ) ) {
 399                         $msgInfo = $params['label-message'];
 400
 401                         if ( is_array( $msgInfo ) ) {
 402                                 $msg = array_shift( $msgInfo );
 403                         } else {
 404                                 $msg = $msgInfo;
 405                                 $msgInfo = array();
 406                         }
 407
 408                         $this->mLabel = wfMsgExt( $msg, 'parseinline', $msgInfo );
 409                 } elseif ( isset( $params['label'] ) ) {
 410                         $this->mLabel = $params['label'];
 411                 }
 412
 413                 if ( isset( $params['name'] ) ) {
 414                         $name = $params['name'];
 415                         $validName = Sanitizer::escapeId( $name );
 416                         if( $name != $validName ) {
 417                                 throw new MWException("Invalid name '$name' passed to " . __METHOD__ );
 418                         }
 419                         $this->mName = 'wp'.$name;
 420                         $this->mID = 'mw-input-'.$name;
 421                 }
 422
 423                 if ( isset( $params['default'] ) ) {
 424                         $this->mDefault = $params['default'];
 425                 }
 426
 427                 if ( isset( $params['id'] ) ) {
 428                         $id = $params['id'];
 429                         $validId = Sanitizer::escapeId( $id );
 430                         if( $id != $validId ) {
 431                                 throw new MWException("Invalid id '$id' passed to " . __METHOD__ );
 432                         }
 433                         $this->mID = $id;
 434                 }
 435
 436                 if ( isset( $params['validation-callback'] ) ) {
 437                         $this->mValidationCallback = $params['validation-callback'];
 438                 }
 439
 440                 if ( isset( $params['filter-callback'] ) ) {
 441                         $this->mFilterCallback = $params['filter-callback'];
 442                 }
 443         }
 444
 445         function getTableRow( $value ) {
 446                 // Check for invalid data.
 447                 global $wgRequest;
 448
 449                 $errors = $this->validate( $value, $this->mParent->mFieldData );
 450                 if ( $errors === true || !$wgRequest->wasPosted() ) {
 451                         $errors = '';
 452                 } else {
 453                         $errors = Xml::tags( 'span', array( 'class' => 'error' ), $errors );
 454                 }
 455
 456                 $html = '';
 457
 458                 $html .= Xml::tags( 'td', array( 'class' => 'mw-label' ),
 459                                         Xml::tags( 'label', array( 'for' => $this->mID ), $this->getLabel() )
 460                                 );
 461                 $html .= Xml::tags( 'td', array( 'class' => 'mw-input' ),
 462                                                         $this->getInputHTML( $value ) ."\n$errors" );
 463
 464                 $fieldType = get_class( $this );
 465
 466                 $html = Xml::tags( 'tr', array( 'class' => "mw-htmlform-field-$fieldType" ),
 467                                                         $html ) . "\n";
 468
 469                 $helptext = null;
 470                 if ( isset( $this->mParams['help-message'] ) ) {
 471                         $msg = $this->mParams['help-message'];
 472                         $helptext = wfMsgExt( $msg, 'parseinline' );
 473                         if ( wfEmptyMsg( $msg, $helptext ) ) {
 474                                 # Never mind
 475                                 $helptext = null;
 476                         }
 477                 } elseif ( isset( $this->mParams['help'] ) ) {
 478                         $helptext = $this->mParams['help'];
 479                 }
 480
 481                 if ( !is_null( $helptext ) ) {
 482                         $row = Xml::tags( 'td', array( 'colspan' => 2, 'class' => 'htmlform-tip' ),
 483                                 $helptext );
 484                         $row = Xml::tags( 'tr', null, $row );
 485                         $html .= "$row\n";
 486                 }
 487
 488                 return $html;
 489         }
 490
 491         function getLabel() {
 492                 return $this->mLabel;
 493         }
 494
 495         function getDefault() {
 496                 if ( isset( $this->mDefault ) ) {
 497                         return $this->mDefault;
 498                 } else {
 499                         return null;
 500                 }
 501         }
 502
 503         static function flattenOptions( $options ) {
 504                 $flatOpts = array();
 505
 506                 foreach( $options as $key => $value ) {
 507                         if ( is_array( $value ) ) {
 508                                 $flatOpts = array_merge( $flatOpts, self::flattenOptions( $value ) );
 509                         } else {
 510                                 $flatOpts[] = $value;
 511                         }
 512                 }
 513
 514                 return $flatOpts;
 515         }
 516 }
 517
 518 class HTMLTextField extends HTMLFormField {
 519         function getSize() {
 520                 return isset( $this->mParams['size'] ) ? $this->mParams['size'] : 45;
 521         }
 522
 523         function getInputHTML( $value ) {
 524                 global $wgHtml5;
 525                 $attribs = array( 'id' => $this->mID );
 526
 527                 if ( isset( $this->mParams['maxlength'] ) ) {
 528                         $attribs['maxlength'] = $this->mParams['maxlength'];
 529                 }
 530
 531                 if ( !empty( $this->mParams['disabled'] ) ) {
 532                         $attribs['disabled'] = 'disabled';
 533                 }
 534
 535                 if ( $wgHtml5 ) {
 536                         # TODO: Enforce pattern, step, required, readonly on the server
 537                         # side as well
 538                         foreach ( array( 'min', 'max', 'pattern', 'title', 'step',
 539                         'placeholder' ) as $param ) {
 540                                 if ( isset( $this->mParams[$param] ) ) {
 541                                         $attribs[$param] = $this->mParams[$param];
 542                                 }
 543                         }
 544                         foreach ( array( 'required', 'autofocus', 'multiple', 'readonly' )
 545                         as $param ) {
 546                                 if ( isset( $this->mParams[$param] ) ) {
 547                                         $attribs[$param] = '';
 548                                 }
 549                         }
 550                         if ( isset( $this->mParams['type'] ) ) {
 551                                 switch ( $this->mParams['type'] ) {
 552                                 case 'email':
 553                                         $attribs['type'] = 'email';
 554                                         break;
 555                                 case 'int':
 556                                         $attribs['type'] = 'number';
 557                                         break;
 558                                 case 'float':
 559                                         $attribs['type'] = 'number';
 560                                         $attribs['step'] = 'any';
 561                                         break;
 562                                 }
 563                         }
 564                 }
 565
 566                 return Xml::input(
 567                         $this->mName,
 568                         $this->getSize(),
 569                         $value,
 570                         $attribs
 571                 );
 572         }
 573 }
 574
 575 class HTMLFloatField extends HTMLTextField {
 576         function getSize() {
 577                 return isset( $this->mParams['size'] ) ? $this->mParams['size'] : 20;
 578         }
 579
 580         function validate( $value, $alldata ) {
 581                 $p = parent::validate( $value, $alldata );
 582
 583                 if ( $p !== true ) return $p;
 584
 585                 if ( floatval( $value ) != $value ) {
 586                         return wfMsgExt( 'htmlform-float-invalid', 'parse' );
 587                 }
 588
 589                 $in_range = true;
 590
 591                 # The "int" part of these message names is rather confusing.  They make
 592                 # equal sense for all numbers.
 593                 if ( isset( $this->mParams['min'] ) ) {
 594                         $min = $this->mParams['min'];
 595                         if ( $min > $value )
 596                                 return wfMsgExt( 'htmlform-int-toolow', 'parse', array( $min ) );
 597                 }
 598
 599                 if ( isset( $this->mParams['max'] ) ) {
 600                         $max = $this->mParams['max'];
 601                         if( $max < $value )
 602                                 return wfMsgExt( 'htmlform-int-toohigh', 'parse', array( $max ) );
 603                 }
 604
 605                 return true;
 606         }
 607 }
 608
 609 class HTMLIntField extends HTMLFloatField {
 610         function validate( $value, $alldata ) {
 611                 $p = parent::validate( $value, $alldata );
 612
 613                 if ( $p !== true ) return $p;
 614
 615                 if ( intval( $value ) != $value ) {
 616                         return wfMsgExt( 'htmlform-int-invalid', 'parse' );
 617                 }
 618
 619                 return true;
 620         }
 621 }
 622
 623 class HTMLCheckField extends HTMLFormField {
 624         function getInputHTML( $value ) {
 625                 if ( !empty( $this->mParams['invert'] ) )
 626                         $value = !$value;
 627
 628                 $attr = array( 'id' => $this->mID );
 629                 if( !empty( $this->mParams['disabled'] ) ) {
 630                         $attr['disabled'] = 'disabled';
 631                 }
 632
 633                 return Xml::check( $this->mName, $value, $attr ) . '&nbsp;' .
 634                                 Xml::tags( 'label', array( 'for' => $this->mID ), $this->mLabel );
 635         }
 636
 637         function getLabel() {
 638                 return '&nbsp;'; // In the right-hand column.
 639         }
 640
 641         function loadDataFromRequest( $request ) {
 642                 $invert = false;
 643                 if ( isset( $this->mParams['invert'] ) && $this->mParams['invert'] ) {
 644                         $invert = true;
 645                 }
 646
 647                 // GetCheck won't work like we want for checks.
 648                 if( $request->getCheck( 'wpEditToken' ) ) {
 649                         // XOR has the following truth table, which is what we want
 650                         // INVERT VALUE | OUTPUT
 651                         // true   true  | false
 652                         // false  true  | true
 653                         // false  false | false
 654                         // true   false | true
 655                         return $request->getBool( $this->mName ) xor $invert;
 656                 } else {
 657                         return $this->getDefault();
 658                 }
 659         }
 660 }
 661
 662 class HTMLSelectField extends HTMLFormField {
 663
 664         function validate( $value, $alldata ) {
 665                 $p = parent::validate( $value, $alldata );
 666                 if( $p !== true ) return $p;
 667
 668                 $validOptions = HTMLFormField::flattenOptions( $this->mParams['options'] );
 669                 if ( in_array( $value, $validOptions ) )
 670                         return true;
 671                 else
 672                         return wfMsgExt( 'htmlform-select-badoption', 'parseinline' );
 673         }
 674
 675         function getInputHTML( $value ) {
 676                 $select = new XmlSelect( $this->mName, $this->mID, strval( $value ) );
 677
 678                 // If one of the options' 'name' is int(0), it is automatically selected.
 679                 //  because PHP sucks and things int(0) == 'some string'.
 680                 //  Working around this by forcing all of them to strings.
 681                 $options = array_map( 'strval', $this->mParams['options'] );
 682
 683                 if( !empty( $this->mParams['disabled'] ) ) {
 684                         $select->setAttribute( 'disabled', 'disabled' );
 685                 }
 686
 687                 $select->addOptions( $options );
 688
 689                 return $select->getHTML();
 690         }
 691 }
 692
 693 class HTMLSelectOrOtherField extends HTMLTextField {
 694         static $jsAdded = false;
 695
 696         function __construct( $params ) {
 697                 if( !in_array( 'other', $params['options'] ) ) {
 698                         $params['options'][wfMsg( 'htmlform-selectorother-other' )] = 'other';
 699                 }
 700
 701                 parent::__construct( $params );
 702         }
 703
 704         static function forceToStringRecursive( $array ) {
 705                 if ( is_array($array) ) {
 706                         return array_map( array( __CLASS__, 'forceToStringRecursive' ), $array);
 707                 } else {
 708                         return strval($array);
 709                 }
 710         }
 711
 712         function getInputHTML( $value ) {
 713                 $valInSelect = false;
 714
 715                 if( $value !== false )
 716                         $valInSelect = in_array( $value,
 717                                                         HTMLFormField::flattenOptions( $this->mParams['options'] ) );
 718
 719                 $selected = $valInSelect ? $value : 'other';
 720
 721                 $opts = self::forceToStringRecursive( $this->mParams['options'] );
 722
 723                 $select = new XmlSelect( $this->mName, $this->mID, $selected );
 724                 $select->addOptions( $opts );
 725
 726                 $select->setAttribute( 'class', 'mw-htmlform-select-or-other' );
 727
 728                 $tbAttribs = array( 'id' => $this->mID . '-other' );
 729                 if( !empty( $this->mParams['disabled'] ) ) {
 730                         $select->setAttribute( 'disabled', 'disabled' );
 731                         $tbAttribs['disabled'] = 'disabled';
 732                 }
 733
 734                 $select = $select->getHTML();
 735
 736                 if ( isset( $this->mParams['maxlength'] ) ) {
 737                         $tbAttribs['maxlength'] = $this->mParams['maxlength'];
 738                 }
 739
 740                 $textbox = Xml::input( $this->mName . '-other',
 741                                                         $this->getSize(),
 742                                                         $valInSelect ? '' : $value,
 743                                                         $tbAttribs );
 744
 745                 return "$select<br/>\n$textbox";
 746         }
 747
 748         function loadDataFromRequest( $request ) {
 749                 if( $request->getCheck( $this->mName ) ) {
 750                         $val = $request->getText( $this->mName );
 751
 752                         if( $val == 'other' ) {
 753                                 $val = $request->getText( $this->mName . '-other' );
 754                         }
 755
 756                         return $val;
 757                 } else {
 758                         return $this->getDefault();
 759                 }
 760         }
 761 }
 762
 763 class HTMLMultiSelectField extends HTMLFormField {
 764         function validate( $value, $alldata ) {
 765                 $p = parent::validate( $value, $alldata );
 766                 if( $p !== true ) return $p;
 767
 768                 if( !is_array( $value ) ) return false;
 769
 770                 // If all options are valid, array_intersect of the valid options and the provided
 771                 //  options will return the provided options.
 772                 $validOptions = HTMLFormField::flattenOptions( $this->mParams['options'] );
 773
 774                 $validValues = array_intersect( $value, $validOptions );
 775                 if ( count( $validValues ) == count( $value ) )
 776                         return true;
 777                 else
 778                         return wfMsgExt( 'htmlform-select-badoption', 'parseinline' );
 779         }
 780
 781         function getInputHTML( $value ) {
 782                 $html = $this->formatOptions( $this->mParams['options'], $value );
 783
 784                 return $html;
 785         }
 786
 787         function formatOptions( $options, $value ) {
 788                 $html = '';
 789
 790                 $attribs = array();
 791                 if ( !empty( $this->mParams['disabled'] ) ) {
 792                         $attribs['disabled'] = 'disabled';
 793                 }
 794
 795                 foreach( $options as $label => $info ) {
 796                         if( is_array( $info ) ) {
 797                                 $html .= Xml::tags( 'h1', null, $label ) . "\n";
 798                                 $html .= $this->formatOptions( $info, $value );
 799                         } else {
 800                                 $thisAttribs = array( 'id' => $this->mID . "-$info", 'value' => $info );
 801
 802                                 $checkbox = Xml::check( $this->mName . '[]', in_array( $info, $value ),
 803                                                                 $attribs + $thisAttribs );
 804                                 $checkbox .= '&nbsp;' . Xml::tags( 'label', array( 'for' => $this->mID . "-$info" ), $label );
 805
 806                                 $html .= $checkbox . '<br />';
 807                         }
 808                 }
 809
 810                 return $html;
 811         }
 812
 813         function loadDataFromRequest( $request ) {
 814                 // won't work with getCheck
 815                 if( $request->getCheck( 'wpEditToken' ) ) {
 816                         $arr = $request->getArray( $this->mName );
 817
 818                         if( !$arr )
 819                                 $arr = array();
 820
 821                         return $arr;
 822                 } else {
 823                         return $this->getDefault();
 824                 }
 825         }
 826
 827         function getDefault() {
 828                 if ( isset( $this->mDefault ) ) {
 829                         return $this->mDefault;
 830                 } else {
 831                         return array();
 832                 }
 833         }
 834 }
 835
 836 class HTMLRadioField extends HTMLFormField {
 837         function validate( $value, $alldata ) {
 838                 $p = parent::validate( $value, $alldata );
 839                 if( $p !== true ) return $p;
 840
 841                 if( !is_string( $value ) && !is_int( $value ) )
 842                         return false;
 843
 844                 $validOptions = HTMLFormField::flattenOptions( $this->mParams['options'] );
 845
 846                 if ( in_array( $value, $validOptions ) )
 847                         return true;
 848                 else
 849                         return wfMsgExt( 'htmlform-select-badoption', 'parseinline' );
 850         }
 851
 852         function getInputHTML( $value ) {
 853                 $html = $this->formatOptions( $this->mParams['options'], $value );
 854
 855                 return $html;
 856         }
 857
 858         function formatOptions( $options, $value ) {
 859                 $html = '';
 860
 861                 $attribs = array();
 862                 if ( !empty( $this->mParams['disabled'] ) ) {
 863                         $attribs['disabled'] = 'disabled';
 864                 }
 865
 866                 foreach( $options as $label => $info ) {
 867                         if( is_array( $info ) ) {
 868                                 $html .= Xml::tags( 'h1', null, $label ) . "\n";
 869                                 $html .= $this->formatOptions( $info, $value );
 870                         } else {
 871                                 $id = Sanitizer::escapeId( $this->mID . "-$info" );
 872                                 $html .= Xml::radio( $this->mName, $info, $info == $value,
 873                                                                                 $attribs + array( 'id' => $id ) );
 874                                 $html .= '&nbsp;' .
 875                                                 Xml::tags( 'label', array( 'for' => $id ), $label );
 876
 877                                 $html .= "<br/>\n";
 878                         }
 879                 }
 880
 881                 return $html;
 882         }
 883 }
 884
 885 class HTMLInfoField extends HTMLFormField {
 886         function __construct( $info ) {
 887                 $info['nodata'] = true;
 888
 889                 parent::__construct( $info );
 890         }
 891
 892         function getInputHTML( $value ) {
 893                 return !empty( $this->mParams['raw'] ) ? $value : htmlspecialchars( $value );
 894         }
 895
 896         function getTableRow( $value ) {
 897                 if ( !empty( $this->mParams['rawrow'] ) ) {
 898                         return $value;
 899                 }
 900
 901                 return parent::getTableRow( $value );
 902         }
 903 }