From c1f9b1f7b1b77776192048005dcc66dcf3df2bfb Mon Sep 17 00:00:00 2001
From: Pierre Schmitz <pierre@archlinux.de>
Date: Sat, 27 Dec 2014 15:41:37 +0100
Subject: Update to MediaWiki 1.24.1

---
 includes/HTMLForm.php | 2965 -------------------------------------------------
 1 file changed, 2965 deletions(-)
 delete mode 100644 includes/HTMLForm.php

(limited to 'includes/HTMLForm.php')

diff --git a/includes/HTMLForm.php b/includes/HTMLForm.php
deleted file mode 100644
index d260862c..00000000
--- a/includes/HTMLForm.php
+++ /dev/null
@@ -1,2965 +0,0 @@
-<?php
-/**
- * HTML form generation and submission handling.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- * http://www.gnu.org/copyleft/gpl.html
- *
- * @file
- */
-
-/**
- * Object handling generic submission, CSRF protection, layout and
- * other logic for UI forms. in a reusable manner.
- *
- * In order to generate the form, the HTMLForm object takes an array
- * structure detailing the form fields available. Each element of the
- * array is a basic property-list, including the type of field, the
- * label it is to be given in the form, callbacks for validation and
- * 'filtering', and other pertinent information.
- *
- * Field types are implemented as subclasses of the generic HTMLFormField
- * object, and typically implement at least getInputHTML, which generates
- * the HTML for the input field to be placed in the table.
- *
- * You can find extensive documentation on the www.mediawiki.org wiki:
- *  - http://www.mediawiki.org/wiki/HTMLForm
- *  - http://www.mediawiki.org/wiki/HTMLForm/tutorial
- *
- * The constructor input is an associative array of $fieldname => $info,
- * where $info is an Associative Array with any of the following:
- *
- *	'class'               -- the subclass of HTMLFormField that will be used
- *	                         to create the object.  *NOT* the CSS class!
- *	'type'                -- roughly translates into the <select> type attribute.
- *	                         if 'class' is not specified, this is used as a map
- *	                         through HTMLForm::$typeMappings to get the class name.
- *	'default'             -- default value when the form is displayed
- *	'id'                  -- HTML id attribute
- *	'cssclass'            -- CSS class
- *	'options'             -- varies according to the specific object.
- *	'label-message'       -- message key for a message to use as the label.
- *	                         can be an array of msg key and then parameters to
- *	                         the message.
- *	'label'               -- alternatively, a raw text message. Overridden by
- *	                         label-message
- *	'help'                -- message text for a message to use as a help text.
- *	'help-message'        -- message key for a message to use as a help text.
- *	                         can be an array of msg key and then parameters to
- *	                         the message.
- *	                         Overwrites 'help-messages' and 'help'.
- *	'help-messages'       -- array of message key. As above, each item can
- *	                         be an array of msg key and then parameters.
- *	                         Overwrites 'help'.
- *	'required'            -- passed through to the object, indicating that it
- *	                         is a required field.
- *	'size'                -- the length of text fields
- *	'filter-callback      -- a function name to give you the chance to
- *	                         massage the inputted value before it's processed.
- *	                         @see HTMLForm::filter()
- *	'validation-callback' -- a function name to give you the chance
- *	                         to impose extra validation on the field input.
- *	                         @see HTMLForm::validate()
- *	'name'                -- By default, the 'name' attribute of the input field
- *	                         is "wp{$fieldname}".  If you want a different name
- *	                         (eg one without the "wp" prefix), specify it here and
- *	                         it will be used without modification.
- *
- * Since 1.20, you can chain mutators to ease the form generation:
- * @par Example:
- * @code
- * $form = new HTMLForm( $someFields );
- * $form->setMethod( 'get' )
- *      ->setWrapperLegendMsg( 'message-key' )
- *      ->prepareForm()
- *      ->displayForm( '' );
- * @endcode
- * Note that you will have prepareForm and displayForm at the end. Other
- * methods call done after that would simply not be part of the form :(
- *
- * TODO: Document 'section' / 'subsection' stuff
- */
-class HTMLForm extends ContextSource {
-
-	// A mapping of 'type' inputs onto standard HTMLFormField subclasses
-	public static $typeMappings = array(
-		'api' => 'HTMLApiField',
-		'text' => 'HTMLTextField',
-		'textarea' => 'HTMLTextAreaField',
-		'select' => 'HTMLSelectField',
-		'radio' => 'HTMLRadioField',
-		'multiselect' => 'HTMLMultiSelectField',
-		'check' => 'HTMLCheckField',
-		'toggle' => 'HTMLCheckField',
-		'int' => 'HTMLIntField',
-		'float' => 'HTMLFloatField',
-		'info' => 'HTMLInfoField',
-		'selectorother' => 'HTMLSelectOrOtherField',
-		'selectandother' => 'HTMLSelectAndOtherField',
-		'submit' => 'HTMLSubmitField',
-		'hidden' => 'HTMLHiddenField',
-		'edittools' => 'HTMLEditTools',
-		'checkmatrix' => 'HTMLCheckMatrix',
-
-		// HTMLTextField will output the correct type="" attribute automagically.
-		// There are about four zillion other HTML5 input types, like url, but
-		// we don't use those at the moment, so no point in adding all of them.
-		'email' => 'HTMLTextField',
-		'password' => 'HTMLTextField',
-	);
-
-	protected $mMessagePrefix;
-
-	/** @var HTMLFormField[] */
-	protected $mFlatFields;
-
-	protected $mFieldTree;
-	protected $mShowReset = false;
-	protected $mShowSubmit = true;
-	public $mFieldData;
-
-	protected $mSubmitCallback;
-	protected $mValidationErrorMessage;
-
-	protected $mPre = '';
-	protected $mHeader = '';
-	protected $mFooter = '';
-	protected $mSectionHeaders = array();
-	protected $mSectionFooters = array();
-	protected $mPost = '';
-	protected $mId;
-	protected $mTableId = '';
-
-	protected $mSubmitID;
-	protected $mSubmitName;
-	protected $mSubmitText;
-	protected $mSubmitTooltip;
-
-	protected $mTitle;
-	protected $mMethod = 'post';
-
-	/**
-	 * Form action URL. false means we will use the URL to set Title
-	 * @since 1.19
-	 * @var bool|string
-	 */
-	protected $mAction = false;
-
-	protected $mUseMultipart = false;
-	protected $mHiddenFields = array();
-	protected $mButtons = array();
-
-	protected $mWrapperLegend = false;
-
-	/**
-	 * If true, sections that contain both fields and subsections will
-	 * render their subsections before their fields.
-	 *
-	 * Subclasses may set this to false to render subsections after fields
-	 * instead.
-	 */
-	protected $mSubSectionBeforeFields = true;
-
-	/**
-	 * Format in which to display form. For viable options,
-	 * @see $availableDisplayFormats
-	 * @var String
-	 */
-	protected $displayFormat = 'table';
-
-	/**
-	 * Available formats in which to display the form
-	 * @var Array
-	 */
-	protected $availableDisplayFormats = array(
-		'table',
-		'div',
-		'raw',
-		'vform',
-	);
-
-	/**
-	 * Build a new HTMLForm from an array of field attributes
-	 * @param array $descriptor of Field constructs, as described above
-	 * @param $context IContextSource available since 1.18, will become compulsory in 1.18.
-	 *     Obviates the need to call $form->setTitle()
-	 * @param string $messagePrefix a prefix to go in front of default messages
-	 */
-	public function __construct( $descriptor, /*IContextSource*/ $context = null, $messagePrefix = '' ) {
-		if ( $context instanceof IContextSource ) {
-			$this->setContext( $context );
-			$this->mTitle = false; // We don't need them to set a title
-			$this->mMessagePrefix = $messagePrefix;
-		} elseif ( is_null( $context ) && $messagePrefix !== '' ) {
-			$this->mMessagePrefix = $messagePrefix;
-		} elseif ( is_string( $context ) && $messagePrefix === '' ) {
-			// B/C since 1.18
-			// it's actually $messagePrefix
-			$this->mMessagePrefix = $context;
-		}
-
-		// Expand out into a tree.
-		$loadedDescriptor = array();
-		$this->mFlatFields = array();
-
-		foreach ( $descriptor as $fieldname => $info ) {
-			$section = isset( $info['section'] )
-				? $info['section']
-				: '';
-
-			if ( isset( $info['type'] ) && $info['type'] == 'file' ) {
-				$this->mUseMultipart = true;
-			}
-
-			$field = self::loadInputFromParameters( $fieldname, $info );
-			// FIXME During field's construct, the parent form isn't available!
-			// could add a 'parent' name-value to $info, could add a third parameter.
-			$field->mParent = $this;
-
-			// vform gets too much space if empty labels generate HTML.
-			if ( $this->isVForm() ) {
-				$field->setShowEmptyLabel( false );
-			}
-
-			$setSection =& $loadedDescriptor;
-			if ( $section ) {
-				$sectionParts = explode( '/', $section );
-
-				while ( count( $sectionParts ) ) {
-					$newName = array_shift( $sectionParts );
-
-					if ( !isset( $setSection[$newName] ) ) {
-						$setSection[$newName] = array();
-					}
-
-					$setSection =& $setSection[$newName];
-				}
-			}
-
-			$setSection[$fieldname] = $field;
-			$this->mFlatFields[$fieldname] = $field;
-		}
-
-		$this->mFieldTree = $loadedDescriptor;
-	}
-
-	/**
-	 * Set format in which to display the form
-	 * @param string $format the name of the format to use, must be one of
-	 *        $this->availableDisplayFormats
-	 * @throws MWException
-	 * @since 1.20
-	 * @return HTMLForm $this for chaining calls (since 1.20)
-	 */
-	public function setDisplayFormat( $format ) {
-		if ( !in_array( $format, $this->availableDisplayFormats ) ) {
-			throw new MWException( 'Display format must be one of ' . print_r( $this->availableDisplayFormats, true ) );
-		}
-		$this->displayFormat = $format;
-		return $this;
-	}
-
-	/**
-	 * Getter for displayFormat
-	 * @since 1.20
-	 * @return String
-	 */
-	public function getDisplayFormat() {
-		return $this->displayFormat;
-	}
-
-	/**
-	 * Test if displayFormat is 'vform'
-	 * @since 1.22
-	 * @return Bool
-	 */
-	public function isVForm() {
-		return $this->displayFormat === 'vform';
-	}
-
-	/**
-	 * Add the HTMLForm-specific JavaScript, if it hasn't been
-	 * done already.
-	 * @deprecated since 1.18 load modules with ResourceLoader instead
-	 */
-	static function addJS() {
-		wfDeprecated( __METHOD__, '1.18' );
-	}
-
-	/**
-	 * Initialise a new Object for the field
-	 * @param $fieldname string
-	 * @param string $descriptor input Descriptor, as described above
-	 * @throws MWException
-	 * @return HTMLFormField subclass
-	 */
-	static function loadInputFromParameters( $fieldname, $descriptor ) {
-		if ( isset( $descriptor['class'] ) ) {
-			$class = $descriptor['class'];
-		} elseif ( isset( $descriptor['type'] ) ) {
-			$class = self::$typeMappings[$descriptor['type']];
-			$descriptor['class'] = $class;
-		} else {
-			$class = null;
-		}
-
-		if ( !$class ) {
-			throw new MWException( "Descriptor with no class: " . print_r( $descriptor, true ) );
-		}
-
-		$descriptor['fieldname'] = $fieldname;
-
-		# TODO
-		# This will throw a fatal error whenever someone try to use
-		# 'class' to feed a CSS class instead of 'cssclass'. Would be
-		# great to avoid the fatal error and show a nice error.
-		$obj = new $class( $descriptor );
-
-		return $obj;
-	}
-
-	/**
-	 * Prepare form for submission.
-	 *
-	 * @attention When doing method chaining, that should be the very last
-	 * method call before displayForm().
-	 *
-	 * @throws MWException
-	 * @return HTMLForm $this for chaining calls (since 1.20)
-	 */
-	function prepareForm() {
-		# Check if we have the info we need
-		if ( !$this->mTitle instanceof Title && $this->mTitle !== false ) {
-			throw new MWException( "You must call setTitle() on an HTMLForm" );
-		}
-
-		# Load data from the request.
-		$this->loadData();
-		return $this;
-	}
-
-	/**
-	 * Try submitting, with edit token check first
-	 * @return Status|boolean
-	 */
-	function tryAuthorizedSubmit() {
-		$result = false;
-
-		$submit = false;
-		if ( $this->getMethod() != 'post' ) {
-			$submit = true; // no session check needed
-		} elseif ( $this->getRequest()->wasPosted() ) {
-			$editToken = $this->getRequest()->getVal( 'wpEditToken' );
-			if ( $this->getUser()->isLoggedIn() || $editToken != null ) {
-				// Session tokens for logged-out users have no security value.
-				// However, if the user gave one, check it in order to give a nice
-				// "session expired" error instead of "permission denied" or such.
-				$submit = $this->getUser()->matchEditToken( $editToken );
-			} else {
-				$submit = true;
-			}
-		}
-
-		if ( $submit ) {
-			$result = $this->trySubmit();
-		}
-
-		return $result;
-	}
-
-	/**
-	 * The here's-one-I-made-earlier option: do the submission if
-	 * posted, or display the form with or without funky validation
-	 * errors
-	 * @return Bool or Status whether submission was successful.
-	 */
-	function show() {
-		$this->prepareForm();
-
-		$result = $this->tryAuthorizedSubmit();
-		if ( $result === true || ( $result instanceof Status && $result->isGood() ) ) {
-			return $result;
-		}
-
-		$this->displayForm( $result );
-		return false;
-	}
-
-	/**
-	 * Validate all the fields, and call the submission callback
-	 * function if everything is kosher.
-	 * @throws MWException
-	 * @return Mixed Bool true == Successful submission, Bool false
-	 *     == No submission attempted, anything else == Error to
-	 *     display.
-	 */
-	function trySubmit() {
-		# Check for validation
-		foreach ( $this->mFlatFields as $fieldname => $field ) {
-			if ( !empty( $field->mParams['nodata'] ) ) {
-				continue;
-			}
-			if ( $field->validate(
-					$this->mFieldData[$fieldname],
-					$this->mFieldData )
-				!== true
-			) {
-				return isset( $this->mValidationErrorMessage )
-					? $this->mValidationErrorMessage
-					: array( 'htmlform-invalid-input' );
-			}
-		}
-
-		$callback = $this->mSubmitCallback;
-		if ( !is_callable( $callback ) ) {
-			throw new MWException( 'HTMLForm: no submit callback provided. Use setSubmitCallback() to set one.' );
-		}
-
-		$data = $this->filterDataForSubmit( $this->mFieldData );
-
-		$res = call_user_func( $callback, $data, $this );
-
-		return $res;
-	}
-
-	/**
-	 * Set a callback to a function to do something with the form
-	 * once it's been successfully validated.
-	 * @param string $cb function name.  The function will be passed
-	 *	 the output from HTMLForm::filterDataForSubmit, and must
-	 *	 return Bool true on success, Bool false if no submission
-	 *	 was attempted, or String HTML output to display on error.
-	 * @return HTMLForm $this for chaining calls (since 1.20)
-	 */
-	function setSubmitCallback( $cb ) {
-		$this->mSubmitCallback = $cb;
-		return $this;
-	}
-
-	/**
-	 * Set a message to display on a validation error.
-	 * @param $msg Mixed String or Array of valid inputs to wfMessage()
-	 *	 (so each entry can be either a String or Array)
-	 * @return HTMLForm $this for chaining calls (since 1.20)
-	 */
-	function setValidationErrorMessage( $msg ) {
-		$this->mValidationErrorMessage = $msg;
-		return $this;
-	}
-
-	/**
-	 * Set the introductory message, overwriting any existing message.
-	 * @param string $msg complete text of message to display
-	 * @return HTMLForm $this for chaining calls (since 1.20)
-	 */
-	function setIntro( $msg ) {
-		$this->setPreText( $msg );
-		return $this;
-	}
-
-	/**
-	 * Set the introductory message, overwriting any existing message.
-	 * @since 1.19
-	 * @param string $msg complete text of message to display
-	 * @return HTMLForm $this for chaining calls (since 1.20)
-	 */
-	function setPreText( $msg ) {
-		$this->mPre = $msg;
-		return $this;
-	}
-
-	/**
-	 * Add introductory text.
-	 * @param string $msg complete text of message to display
-	 * @return HTMLForm $this for chaining calls (since 1.20)
-	 */
-	function addPreText( $msg ) {
-		$this->mPre .= $msg;
-		return $this;
-	}
-
-	/**
-	 * Add header text, inside the form.
-	 * @param string $msg complete text of message to display
-	 * @param string $section The section to add the header to
-	 * @return HTMLForm $this for chaining calls (since 1.20)
-	 */
-	function addHeaderText( $msg, $section = null ) {
-		if ( is_null( $section ) ) {
-			$this->mHeader .= $msg;
-		} else {
-			if ( !isset( $this->mSectionHeaders[$section] ) ) {
-				$this->mSectionHeaders[$section] = '';
-			}
-			$this->mSectionHeaders[$section] .= $msg;
-		}
-		return $this;
-	}
-
-	/**
-	 * Set header text, inside the form.
-	 * @since 1.19
-	 * @param string $msg complete text of message to display
-	 * @param $section The section to add the header to
-	 * @return HTMLForm $this for chaining calls (since 1.20)
-	 */
-	function setHeaderText( $msg, $section = null ) {
-		if ( is_null( $section ) ) {
-			$this->mHeader = $msg;
-		} else {
-			$this->mSectionHeaders[$section] = $msg;
-		}
-		return $this;
-	}
-
-	/**
-	 * Add footer text, inside the form.
-	 * @param string $msg complete text of message to display
-	 * @param string $section The section to add the footer text to
-	 * @return HTMLForm $this for chaining calls (since 1.20)
-	 */
-	function addFooterText( $msg, $section = null ) {
-		if ( is_null( $section ) ) {
-			$this->mFooter .= $msg;
-		} else {
-			if ( !isset( $this->mSectionFooters[$section] ) ) {
-				$this->mSectionFooters[$section] = '';
-			}
-			$this->mSectionFooters[$section] .= $msg;
-		}
-		return $this;
-	}
-
-	/**
-	 * Set footer text, inside the form.
-	 * @since 1.19
-	 * @param string $msg complete text of message to display
-	 * @param string $section The section to add the footer text to
-	 * @return HTMLForm $this for chaining calls (since 1.20)
-	 */
-	function setFooterText( $msg, $section = null ) {
-		if ( is_null( $section ) ) {
-			$this->mFooter = $msg;
-		} else {
-			$this->mSectionFooters[$section] = $msg;
-		}
-		return $this;
-	}
-
-	/**
-	 * Add text to the end of the display.
-	 * @param string $msg complete text of message to display
-	 * @return HTMLForm $this for chaining calls (since 1.20)
-	 */
-	function addPostText( $msg ) {
-		$this->mPost .= $msg;
-		return $this;
-	}
-
-	/**
-	 * Set text at the end of the display.
-	 * @param string $msg complete text of message to display
-	 * @return HTMLForm $this for chaining calls (since 1.20)
-	 */
-	function setPostText( $msg ) {
-		$this->mPost = $msg;
-		return $this;
-	}
-
-	/**
-	 * Add a hidden field to the output
-	 * @param string $name field name.  This will be used exactly as entered
-	 * @param string $value field value
-	 * @param $attribs Array
-	 * @return HTMLForm $this for chaining calls (since 1.20)
-	 */
-	public function addHiddenField( $name, $value, $attribs = array() ) {
-		$attribs += array( 'name' => $name );
-		$this->mHiddenFields[] = array( $value, $attribs );
-		return $this;
-	}
-
-	/**
-	 * Add an array of hidden fields to the output
-	 *
-	 * @since 1.22
-	 * @param array $fields Associative array of fields to add;
-	 *        mapping names to their values
-	 * @return HTMLForm $this for chaining calls
-	 */
-	public function addHiddenFields( array $fields ) {
-		foreach ( $fields as $name => $value ) {
-			$this->mHiddenFields[] = array( $value, array( 'name' => $name ) );
-		}
-		return $this;
-	}
-
-	/**
-	 * Add a button to the form
-	 * @param string $name field name.
-	 * @param string $value field value
-	 * @param string $id DOM id for the button (default: null)
-	 * @param $attribs Array
-	 * @return HTMLForm $this for chaining calls (since 1.20)
-	 */
-	public function addButton( $name, $value, $id = null, $attribs = null ) {
-		$this->mButtons[] = compact( 'name', 'value', 'id', 'attribs' );
-		return $this;
-	}
-
-	/**
-	 * Display the form (sending to the context's OutputPage object), with an
-	 * appropriate error message or stack of messages, and any validation errors, etc.
-	 *
-	 * @attention You should call prepareForm() before calling this function.
-	 * Moreover, when doing method chaining this should be the very last method
-	 * call just after prepareForm().
-	 *
-	 * @param $submitResult Mixed output from HTMLForm::trySubmit()
-	 * @return Nothing, should be last call
-	 */
-	function displayForm( $submitResult ) {
-		$this->getOutput()->addHTML( $this->getHTML( $submitResult ) );
-	}
-
-	/**
-	 * Returns the raw HTML generated by the form
-	 * @param $submitResult Mixed output from HTMLForm::trySubmit()
-	 * @return string
-	 */
-	function getHTML( $submitResult ) {
-		# For good measure (it is the default)
-		$this->getOutput()->preventClickjacking();
-		$this->getOutput()->addModules( 'mediawiki.htmlform' );
-		if ( $this->isVForm() ) {
-			$this->getOutput()->addModuleStyles( 'mediawiki.ui' );
-			// TODO should vertical form set setWrapperLegend( false )
-			// to hide ugly fieldsets?
-		}
-
-		$html = ''
-			. $this->getErrors( $submitResult )
-			. $this->mHeader
-			. $this->getBody()
-			. $this->getHiddenFields()
-			. $this->getButtons()
-			. $this->mFooter
-		;
-
-		$html = $this->wrapForm( $html );
-
-		return '' . $this->mPre . $html . $this->mPost;
-	}
-
-	/**
-	 * Wrap the form innards in an actual "<form>" element
-	 * @param string $html HTML contents to wrap.
-	 * @return String wrapped HTML.
-	 */
-	function wrapForm( $html ) {
-
-		# Include a <fieldset> wrapper for style, if requested.
-		if ( $this->mWrapperLegend !== false ) {
-			$html = Xml::fieldset( $this->mWrapperLegend, $html );
-		}
-		# Use multipart/form-data
-		$encType = $this->mUseMultipart
-			? 'multipart/form-data'
-			: 'application/x-www-form-urlencoded';
-		# Attributes
-		$attribs = array(
-			'action' => $this->getAction(),
-			'method' => $this->getMethod(),
-			'class' => array( 'visualClear' ),
-			'enctype' => $encType,
-		);
-		if ( !empty( $this->mId ) ) {
-			$attribs['id'] = $this->mId;
-		}
-
-		if ( $this->isVForm() ) {
-			array_push( $attribs['class'], 'mw-ui-vform', 'mw-ui-container' );
-		}
-		return Html::rawElement( 'form', $attribs, $html );
-	}
-
-	/**
-	 * Get the hidden fields that should go inside the form.
-	 * @return String HTML.
-	 */
-	function getHiddenFields() {
-		global $wgArticlePath;
-
-		$html = '';
-		if ( $this->getMethod() == 'post' ) {
-			$html .= Html::hidden( 'wpEditToken', $this->getUser()->getEditToken(), array( 'id' => 'wpEditToken' ) ) . "\n";
-			$html .= Html::hidden( 'title', $this->getTitle()->getPrefixedText() ) . "\n";
-		}
-
-		if ( strpos( $wgArticlePath, '?' ) !== false && $this->getMethod() == 'get' ) {
-			$html .= Html::hidden( 'title', $this->getTitle()->getPrefixedText() ) . "\n";
-		}
-
-		foreach ( $this->mHiddenFields as $data ) {
-			list( $value, $attribs ) = $data;
-			$html .= Html::hidden( $attribs['name'], $value, $attribs ) . "\n";
-		}
-
-		return $html;
-	}
-
-	/**
-	 * Get the submit and (potentially) reset buttons.
-	 * @return String HTML.
-	 */
-	function getButtons() {
-		$html = '<span class="mw-htmlform-submit-buttons">';
-
-		if ( $this->mShowSubmit ) {
-			$attribs = array();
-
-			if ( isset( $this->mSubmitID ) ) {
-				$attribs['id'] = $this->mSubmitID;
-			}
-
-			if ( isset( $this->mSubmitName ) ) {
-				$attribs['name'] = $this->mSubmitName;
-			}
-
-			if ( isset( $this->mSubmitTooltip ) ) {
-				$attribs += Linker::tooltipAndAccesskeyAttribs( $this->mSubmitTooltip );
-			}
-
-			$attribs['class'] = array( 'mw-htmlform-submit' );
-
-			if ( $this->isVForm() ) {
-				// mw-ui-block is necessary because the buttons aren't necessarily in an 
-				// immediate child div of the vform.
-				array_push( $attribs['class'], 'mw-ui-button', 'mw-ui-big', 'mw-ui-primary', 'mw-ui-block' );
-			}
-
-			$html .= Xml::submitButton( $this->getSubmitText(), $attribs ) . "\n";
-
-			// Buttons are top-level form elements in table and div layouts,
-			// but vform wants all elements inside divs to get spaced-out block
-			// styling.
-			if ( $this->isVForm() ) {
-				$html = Html::rawElement( 'div', null, "\n$html\n" );
-			}
-		}
-
-		if ( $this->mShowReset ) {
-			$html .= Html::element(
-				'input',
-				array(
-					'type' => 'reset',
-					'value' => $this->msg( 'htmlform-reset' )->text()
-				)
-			) . "\n";
-		}
-
-		foreach ( $this->mButtons as $button ) {
-			$attrs = array(
-				'type' => 'submit',
-				'name' => $button['name'],
-				'value' => $button['value']
-			);
-
-			if ( $button['attribs'] ) {
-				$attrs += $button['attribs'];
-			}
-
-			if ( isset( $button['id'] ) ) {
-				$attrs['id'] = $button['id'];
-			}
-
-			$html .= Html::element( 'input', $attrs );
-		}
-
-		$html .= '</span>';
-
-		return $html;
-	}
-
-	/**
-	 * Get the whole body of the form.
-	 * @return String
-	 */
-	function getBody() {
-		return $this->displaySection( $this->mFieldTree, $this->mTableId );
-	}
-
-	/**
-	 * Format and display an error message stack.
-	 * @param $errors String|Array|Status
-	 * @return String
-	 */
-	function getErrors( $errors ) {
-		if ( $errors instanceof Status ) {
-			if ( $errors->isOK() ) {
-				$errorstr = '';
-			} else {
-				$errorstr = $this->getOutput()->parse( $errors->getWikiText() );
-			}
-		} elseif ( is_array( $errors ) ) {
-			$errorstr = $this->formatErrors( $errors );
-		} else {
-			$errorstr = $errors;
-		}
-
-		return $errorstr
-			? Html::rawElement( 'div', array( 'class' => 'error' ), $errorstr )
-			: '';
-	}
-
-	/**
-	 * Format a stack of error messages into a single HTML string
-	 * @param array $errors of message keys/values
-	 * @return String HTML, a "<ul>" list of errors
-	 */
-	public static function formatErrors( $errors ) {
-		$errorstr = '';
-
-		foreach ( $errors as $error ) {
-			if ( is_array( $error ) ) {
-				$msg = array_shift( $error );
-			} else {
-				$msg = $error;
-				$error = array();
-			}
-
-			$errorstr .= Html::rawElement(
-				'li',
-				array(),
-				wfMessage( $msg, $error )->parse()
-			);
-		}
-
-		$errorstr = Html::rawElement( 'ul', array(), $errorstr );
-
-		return $errorstr;
-	}
-
-	/**
-	 * Set the text for the submit button
-	 * @param string $t plaintext.
-	 * @return HTMLForm $this for chaining calls (since 1.20)
-	 */
-	function setSubmitText( $t ) {
-		$this->mSubmitText = $t;
-		return $this;
-	}
-
-	/**
-	 * Set the text for the submit button to a message
-	 * @since 1.19
-	 * @param string $msg message key
-	 * @return HTMLForm $this for chaining calls (since 1.20)
-	 */
-	public function setSubmitTextMsg( $msg ) {
-		$this->setSubmitText( $this->msg( $msg )->text() );
-		return $this;
-	}
-
-	/**
-	 * Get the text for the submit button, either customised or a default.
-	 * @return string
-	 */
-	function getSubmitText() {
-		return $this->mSubmitText
-			? $this->mSubmitText
-			: $this->msg( 'htmlform-submit' )->text();
-	}
-
-	/**
-	 * @param string $name Submit button name
-	 * @return HTMLForm $this for chaining calls (since 1.20)
-	 */
-	public function setSubmitName( $name ) {
-		$this->mSubmitName = $name;
-		return $this;
-	}
-
-	/**
-	 * @param string $name Tooltip for the submit button
-	 * @return HTMLForm $this for chaining calls (since 1.20)
-	 */
-	public function setSubmitTooltip( $name ) {
-		$this->mSubmitTooltip = $name;
-		return $this;
-	}
-
-	/**
-	 * Set the id for the submit button.
-	 * @param $t String.
-	 * @todo FIXME: Integrity of $t is *not* validated
-	 * @return HTMLForm $this for chaining calls (since 1.20)
-	 */
-	function setSubmitID( $t ) {
-		$this->mSubmitID = $t;
-		return $this;
-	}
-
-	/**
-	 * Stop a default submit button being shown for this form. This implies that an
-	 * alternate submit method must be provided manually.
-	 *
-	 * @since 1.22
-	 *
-	 * @param bool $suppressSubmit Set to false to re-enable the button again
-	 *
-	 * @return HTMLForm $this for chaining calls
-	 */
-	function suppressDefaultSubmit( $suppressSubmit = true ) {
-		$this->mShowSubmit = !$suppressSubmit;
-		return $this;
-	}
-
-	/**
-	 * Set the id of the \<table\> or outermost \<div\> element.
-	 *
-	 * @since 1.22
-	 * @param string $id new value of the id attribute, or "" to remove
-	 * @return HTMLForm $this for chaining calls
-	 */
-	public function setTableId( $id ) {
-		$this->mTableId = $id;
-		return $this;
-	}
-
-	/**
-	 * @param string $id DOM id for the form
-	 * @return HTMLForm $this for chaining calls (since 1.20)
-	 */
-	public function setId( $id ) {
-		$this->mId = $id;
-		return $this;
-	}
-
-	/**
-	 * Prompt the whole form to be wrapped in a "<fieldset>", with
-	 * this text as its "<legend>" element.
-	 * @param string|false $legend HTML to go inside the "<legend>" element, or
-	 * false for no <legend>
-	 *	 Will be escaped
-	 * @return HTMLForm $this for chaining calls (since 1.20)
-	 */
-	public function setWrapperLegend( $legend ) {
-		$this->mWrapperLegend = $legend;
-		return $this;
-	}
-
-	/**
-	 * Prompt the whole form to be wrapped in a "<fieldset>", with
-	 * this message as its "<legend>" element.
-	 * @since 1.19
-	 * @param string $msg message key
-	 * @return HTMLForm $this for chaining calls (since 1.20)
-	 */
-	public function setWrapperLegendMsg( $msg ) {
-		$this->setWrapperLegend( $this->msg( $msg )->text() );
-		return $this;
-	}
-
-	/**
-	 * Set the prefix for various default messages
-	 * @todo currently only used for the "<fieldset>" legend on forms
-	 * with multiple sections; should be used elsewhere?
-	 * @param $p String
-	 * @return HTMLForm $this for chaining calls (since 1.20)
-	 */
-	function setMessagePrefix( $p ) {
-		$this->mMessagePrefix = $p;
-		return $this;
-	}
-
-	/**
-	 * Set the title for form submission
-	 * @param $t Title of page the form is on/should be posted to
-	 * @return HTMLForm $this for chaining calls (since 1.20)
-	 */
-	function setTitle( $t ) {
-		$this->mTitle = $t;
-		return $this;
-	}
-
-	/**
-	 * Get the title
-	 * @return Title
-	 */
-	function getTitle() {
-		return $this->mTitle === false
-			? $this->getContext()->getTitle()
-			: $this->mTitle;
-	}
-
-	/**
-	 * Set the method used to submit the form
-	 * @param $method String
-	 * @return HTMLForm $this for chaining calls (since 1.20)
-	 */
-	public function setMethod( $method = 'post' ) {
-		$this->mMethod = $method;
-		return $this;
-	}
-
-	public function getMethod() {
-		return $this->mMethod;
-	}
-
-	/**
-	 * @todo Document
-	 * @param array[]|HTMLFormField[] $fields array of fields (either arrays or objects)
-	 * @param string $sectionName ID attribute of the "<table>" tag for this section, ignored if empty
-	 * @param string $fieldsetIDPrefix ID prefix for the "<fieldset>" tag of each subsection, ignored if empty
-	 * @param boolean &$hasUserVisibleFields Whether the section had user-visible fields
-	 * @return String
-	 */
-	public function displaySection( $fields, $sectionName = '', $fieldsetIDPrefix = '', &$hasUserVisibleFields = false ) {
-		$displayFormat = $this->getDisplayFormat();
-
-		$html = '';
-		$subsectionHtml = '';
-		$hasLabel = false;
-
-		switch( $displayFormat ) {
-			case 'table':
-				$getFieldHtmlMethod = 'getTableRow';
-				break;
-			case 'vform':
-				// Close enough to a div.
-				$getFieldHtmlMethod = 'getDiv';
-				break;
-			default:
-				$getFieldHtmlMethod = 'get' . ucfirst( $displayFormat );
-		}
-
-		foreach ( $fields as $key => $value ) {
-			if ( $value instanceof HTMLFormField ) {
-				$v = empty( $value->mParams['nodata'] )
-					? $this->mFieldData[$key]
-					: $value->getDefault();
-				$html .= $value->$getFieldHtmlMethod( $v );
-
-				$labelValue = trim( $value->getLabel() );
-				if ( $labelValue != '&#160;' && $labelValue !== '' ) {
-					$hasLabel = true;
-				}
-
-				if ( get_class( $value ) !== 'HTMLHiddenField' &&
-						get_class( $value ) !== 'HTMLApiField' ) {
-					$hasUserVisibleFields = true;
-				}
-			} elseif ( is_array( $value ) ) {
-				$subsectionHasVisibleFields = false;
-				$section = $this->displaySection( $value, "mw-htmlform-$key", "$fieldsetIDPrefix$key-", $subsectionHasVisibleFields );
-				$legend = null;
-
-				if ( $subsectionHasVisibleFields === true ) {
-					// Display the section with various niceties.
-					$hasUserVisibleFields = true;
-
-					$legend = $this->getLegend( $key );
-
-					if ( isset( $this->mSectionHeaders[$key] ) ) {
-						$section = $this->mSectionHeaders[$key] . $section;
-					}
-					if ( isset( $this->mSectionFooters[$key] ) ) {
-						$section .= $this->mSectionFooters[$key];
-					}
-
-					$attributes = array();
-					if ( $fieldsetIDPrefix ) {
-						$attributes['id'] = Sanitizer::escapeId( "$fieldsetIDPrefix$key" );
-					}
-					$subsectionHtml .= Xml::fieldset( $legend, $section, $attributes ) . "\n";
-				} else {
-					// Just return the inputs, nothing fancy.
-					$subsectionHtml .= $section;
-				}
-			}
-		}
-
-		if ( $displayFormat !== 'raw' ) {
-			$classes = array();
-
-			if ( !$hasLabel ) { // Avoid strange spacing when no labels exist
-				$classes[] = 'mw-htmlform-nolabel';
-			}
-
-			$attribs = array(
-				'class' => implode( ' ', $classes ),
-			);
-
-			if ( $sectionName ) {
-				$attribs['id'] = Sanitizer::escapeId( $sectionName );
-			}
-
-			if ( $displayFormat === 'table' ) {
-				$html = Html::rawElement( 'table', $attribs,
-					Html::rawElement( 'tbody', array(), "\n$html\n" ) ) . "\n";
-			} elseif ( $displayFormat === 'div' || $displayFormat === 'vform' ) {
-				$html = Html::rawElement( 'div', $attribs, "\n$html\n" );
-			}
-		}
-
-		if ( $this->mSubSectionBeforeFields ) {
-			return $subsectionHtml . "\n" . $html;
-		} else {
-			return $html . "\n" . $subsectionHtml;
-		}
-	}
-
-	/**
-	 * Construct the form fields from the Descriptor array
-	 */
-	function loadData() {
-		$fieldData = array();
-
-		foreach ( $this->mFlatFields as $fieldname => $field ) {
-			if ( !empty( $field->mParams['nodata'] ) ) {
-				continue;
-			} elseif ( !empty( $field->mParams['disabled'] ) ) {
-				$fieldData[$fieldname] = $field->getDefault();
-			} else {
-				$fieldData[$fieldname] = $field->loadDataFromRequest( $this->getRequest() );
-			}
-		}
-
-		# Filter data.
-		foreach ( $fieldData as $name => &$value ) {
-			$field = $this->mFlatFields[$name];
-			$value = $field->filter( $value, $this->mFlatFields );
-		}
-
-		$this->mFieldData = $fieldData;
-	}
-
-	/**
-	 * Stop a reset button being shown for this form
-	 * @param bool $suppressReset set to false to re-enable the
-	 *	 button again
-	 * @return HTMLForm $this for chaining calls (since 1.20)
-	 */
-	function suppressReset( $suppressReset = true ) {
-		$this->mShowReset = !$suppressReset;
-		return $this;
-	}
-
-	/**
-	 * Overload this if you want to apply special filtration routines
-	 * to the form as a whole, after it's submitted but before it's
-	 * processed.
-	 * @param $data
-	 * @return
-	 */
-	function filterDataForSubmit( $data ) {
-		return $data;
-	}
-
-	/**
-	 * Get a string to go in the "<legend>" of a section fieldset.
-	 * Override this if you want something more complicated.
-	 * @param $key String
-	 * @return String
-	 */
-	public function getLegend( $key ) {
-		return $this->msg( "{$this->mMessagePrefix}-$key" )->text();
-	}
-
-	/**
-	 * Set the value for the action attribute of the form.
-	 * When set to false (which is the default state), the set title is used.
-	 *
-	 * @since 1.19
-	 *
-	 * @param string|bool $action
-	 * @return HTMLForm $this for chaining calls (since 1.20)
-	 */
-	public function setAction( $action ) {
-		$this->mAction = $action;
-		return $this;
-	}
-
-	/**
-	 * Get the value for the action attribute of the form.
-	 *
-	 * @since 1.22
-	 *
-	 * @return string
-	 */
-	public function getAction() {
-		global $wgScript, $wgArticlePath;
-
-		// If an action is alredy provided, return it
-		if ( $this->mAction !== false ) {
-			return $this->mAction;
-		}
-
-		// Check whether we are in GET mode and $wgArticlePath contains a "?"
-		// meaning that getLocalURL() would return something like "index.php?title=...".
-		// As browser remove the query string before submitting GET forms,
-		// it means that the title would be lost. In such case use $wgScript instead
-		// and put title in an hidden field (see getHiddenFields()).
-		if ( strpos( $wgArticlePath, '?' ) !== false && $this->getMethod() === 'get' ) {
-			return $wgScript;
-		}
-
-		return $this->getTitle()->getLocalURL();
-	}
-}
-
-/**
- * The parent class to generate form fields.  Any field type should
- * be a subclass of this.
- */
-abstract class HTMLFormField {
-
-	protected $mValidationCallback;
-	protected $mFilterCallback;
-	protected $mName;
-	public $mParams;
-	protected $mLabel;	# String label.  Set on construction
-	protected $mID;
-	protected $mClass = '';
-	protected $mDefault;
-
-	/**
-	 * @var bool If true will generate an empty div element with no label
-	 * @since 1.22
-	 */
-	protected $mShowEmptyLabels = true;
-
-	/**
-	 * @var HTMLForm
-	 */
-	public $mParent;
-
-	/**
-	 * This function must be implemented to return the HTML to generate
-	 * the input object itself.  It should not implement the surrounding
-	 * table cells/rows, or labels/help messages.
-	 * @param string $value the value to set the input to; eg a default
-	 *	 text for a text input.
-	 * @return String valid HTML.
-	 */
-	abstract function getInputHTML( $value );
-
-	/**
-	 * Get a translated interface message
-	 *
-	 * This is a wrapper around $this->mParent->msg() if $this->mParent is set
-	 * and wfMessage() otherwise.
-	 *
-	 * Parameters are the same as wfMessage().
-	 *
-	 * @return Message object
-	 */
-	function msg() {
-		$args = func_get_args();
-
-		if ( $this->mParent ) {
-			$callback = array( $this->mParent, 'msg' );
-		} else {
-			$callback = 'wfMessage';
-		}
-
-		return call_user_func_array( $callback, $args );
-	}
-
-	/**
-	 * Override this function to add specific validation checks on the
-	 * field input.  Don't forget to call parent::validate() to ensure
-	 * that the user-defined callback mValidationCallback is still run
-	 * @param string $value the value the field was submitted with
-	 * @param array $alldata the data collected from the form
-	 * @return Mixed Bool true on success, or String error to display.
-	 */
-	function validate( $value, $alldata ) {
-		if ( isset( $this->mParams['required'] ) && $this->mParams['required'] !== false && $value === '' ) {
-			return $this->msg( 'htmlform-required' )->parse();
-		}
-
-		if ( isset( $this->mValidationCallback ) ) {
-			return call_user_func( $this->mValidationCallback, $value, $alldata, $this->mParent );
-		}
-
-		return true;
-	}
-
-	function filter( $value, $alldata ) {
-		if ( isset( $this->mFilterCallback ) ) {
-			$value = call_user_func( $this->mFilterCallback, $value, $alldata, $this->mParent );
-		}
-
-		return $value;
-	}
-
-	/**
-	 * Should this field have a label, or is there no input element with the
-	 * appropriate id for the label to point to?
-	 *
-	 * @return bool True to output a label, false to suppress
-	 */
-	protected function needsLabel() {
-		return true;
-	}
-
-	/**
-	 * Tell the field whether to generate a separate label element if its label
-	 * is blank.
-	 *
-	 * @since 1.22
-	 * @param bool $show Set to false to not generate a label.
-	 * @return void
-	 */
-	public function setShowEmptyLabel( $show ) {
-		$this->mShowEmptyLabels = $show;
-	}
-
-	/**
-	 * Get the value that this input has been set to from a posted form,
-	 * or the input's default value if it has not been set.
-	 * @param $request WebRequest
-	 * @return String the value
-	 */
-	function loadDataFromRequest( $request ) {
-		if ( $request->getCheck( $this->mName ) ) {
-			return $request->getText( $this->mName );
-		} else {
-			return $this->getDefault();
-		}
-	}
-
-	/**
-	 * Initialise the object
-	 * @param array $params Associative Array. See HTMLForm doc for syntax.
-	 *
-	 * @since 1.22 The 'label' attribute no longer accepts raw HTML, use 'label-raw' instead
-	 * @throws MWException
-	 */
-	function __construct( $params ) {
-		$this->mParams = $params;
-
-		# Generate the label from a message, if possible
-		if ( isset( $params['label-message'] ) ) {
-			$msgInfo = $params['label-message'];
-
-			if ( is_array( $msgInfo ) ) {
-				$msg = array_shift( $msgInfo );
-			} else {
-				$msg = $msgInfo;
-				$msgInfo = array();
-			}
-
-			$this->mLabel = wfMessage( $msg, $msgInfo )->parse();
-		} elseif ( isset( $params['label'] ) ) {
-			if ( $params['label'] === '&#160;' ) {
-				// Apparently some things set &nbsp directly and in an odd format
-				$this->mLabel = '&#160;';
-			} else {
-				$this->mLabel = htmlspecialchars( $params['label'] );
-			}
-		} elseif ( isset( $params['label-raw'] ) ) {
-			$this->mLabel = $params['label-raw'];
-		}
-
-		$this->mName = "wp{$params['fieldname']}";
-		if ( isset( $params['name'] ) ) {
-			$this->mName = $params['name'];
-		}
-
-		$validName = Sanitizer::escapeId( $this->mName );
-		if ( $this->mName != $validName && !isset( $params['nodata'] ) ) {
-			throw new MWException( "Invalid name '{$this->mName}' passed to " . __METHOD__ );
-		}
-
-		$this->mID = "mw-input-{$this->mName}";
-
-		if ( isset( $params['default'] ) ) {
-			$this->mDefault = $params['default'];
-		}
-
-		if ( isset( $params['id'] ) ) {
-			$id = $params['id'];
-			$validId = Sanitizer::escapeId( $id );
-
-			if ( $id != $validId ) {
-				throw new MWException( "Invalid id '$id' passed to " . __METHOD__ );
-			}
-
-			$this->mID = $id;
-		}
-
-		if ( isset( $params['cssclass'] ) ) {
-			$this->mClass = $params['cssclass'];
-		}
-
-		if ( isset( $params['validation-callback'] ) ) {
-			$this->mValidationCallback = $params['validation-callback'];
-		}
-
-		if ( isset( $params['filter-callback'] ) ) {
-			$this->mFilterCallback = $params['filter-callback'];
-		}
-
-		if ( isset( $params['flatlist'] ) ) {
-			$this->mClass .= ' mw-htmlform-flatlist';
-		}
-
-		if ( isset( $params['hidelabel'] ) ) {
-			$this->mShowEmptyLabels = false;
-		}
-	}
-
-	/**
-	 * Get the complete table row for the input, including help text,
-	 * labels, and whatever.
-	 * @param string $value the value to set the input to.
-	 * @return String complete HTML table row.
-	 */
-	function getTableRow( $value ) {
-		list( $errors, $errorClass ) = $this->getErrorsAndErrorClass( $value );
-		$inputHtml = $this->getInputHTML( $value );
-		$fieldType = get_class( $this );
-		$helptext = $this->getHelpTextHtmlTable( $this->getHelpText() );
-		$cellAttributes = array();
-
-		if ( !empty( $this->mParams['vertical-label'] ) ) {
-			$cellAttributes['colspan'] = 2;
-			$verticalLabel = true;
-		} else {
-			$verticalLabel = false;
-		}
-
-		$label = $this->getLabelHtml( $cellAttributes );
-
-		$field = Html::rawElement(
-			'td',
-			array( 'class' => 'mw-input' ) + $cellAttributes,
-			$inputHtml . "\n$errors"
-		);
-
-		if ( $verticalLabel ) {
-			$html = Html::rawElement( 'tr',
-				array( 'class' => 'mw-htmlform-vertical-label' ), $label );
-			$html .= Html::rawElement( 'tr',
-				array( 'class' => "mw-htmlform-field-$fieldType {$this->mClass} $errorClass" ),
-				$field );
-		} else {
-			$html = Html::rawElement( 'tr',
-				array( 'class' => "mw-htmlform-field-$fieldType {$this->mClass} $errorClass" ),
-				$label . $field );
-		}
-
-		return $html . $helptext;
-	}
-
-	/**
-	 * Get the complete div for the input, including help text,
-	 * labels, and whatever.
-	 * @since 1.20
-	 * @param string $value the value to set the input to.
-	 * @return String complete HTML table row.
-	 */
-	public function getDiv( $value ) {
-		list( $errors, $errorClass ) = $this->getErrorsAndErrorClass( $value );
-		$inputHtml = $this->getInputHTML( $value );
-		$fieldType = get_class( $this );
-		$helptext = $this->getHelpTextHtmlDiv( $this->getHelpText() );
-		$cellAttributes = array();
-		$label = $this->getLabelHtml( $cellAttributes );
-
-		$outerDivClass = array(
-			'mw-input',
-			'mw-htmlform-nolabel' => ( $label === '' )
-		);
-
-		$field = Html::rawElement(
-			'div',
-			array( 'class' => $outerDivClass ) + $cellAttributes,
-			$inputHtml . "\n$errors"
-		);
-		$divCssClasses = array( "mw-htmlform-field-$fieldType", $this->mClass, $errorClass );
-		if ( $this->mParent->isVForm() ) {
-			$divCssClasses[] = 'mw-ui-vform-div';
-		}
-		$html = Html::rawElement( 'div',
-			array( 'class' => $divCssClasses ),
-			$label . $field );
-		$html .= $helptext;
-		return $html;
-	}
-
-	/**
-	 * Get the complete raw fields for the input, including help text,
-	 * labels, and whatever.
-	 * @since 1.20
-	 * @param string $value the value to set the input to.
-	 * @return String complete HTML table row.
-	 */
-	public function getRaw( $value ) {
-		list( $errors, ) = $this->getErrorsAndErrorClass( $value );
-		$inputHtml = $this->getInputHTML( $value );
-		$helptext = $this->getHelpTextHtmlRaw( $this->getHelpText() );
-		$cellAttributes = array();
-		$label = $this->getLabelHtml( $cellAttributes );
-
-		$html = "\n$errors";
-		$html .= $label;
-		$html .= $inputHtml;
-		$html .= $helptext;
-		return $html;
-	}
-
-	/**
-	 * Generate help text HTML in table format
-	 * @since 1.20
-	 * @param $helptext String|null
-	 * @return String
-	 */
-	public function getHelpTextHtmlTable( $helptext ) {
-		if ( is_null( $helptext ) ) {
-			return '';
-		}
-
-		$row = Html::rawElement(
-			'td',
-			array( 'colspan' => 2, 'class' => 'htmlform-tip' ),
-			$helptext
-		);
-		$row = Html::rawElement( 'tr', array(), $row );
-		return $row;
-	}
-
-	/**
-	 * Generate help text HTML in div format
-	 * @since 1.20
-	 * @param $helptext String|null
-	 * @return String
-	 */
-	public function getHelpTextHtmlDiv( $helptext ) {
-		if ( is_null( $helptext ) ) {
-			return '';
-		}
-
-		$div = Html::rawElement( 'div', array( 'class' => 'htmlform-tip' ), $helptext );
-		return $div;
-	}
-
-	/**
-	 * Generate help text HTML formatted for raw output
-	 * @since 1.20
-	 * @param $helptext String|null
-	 * @return String
-	 */
-	public function getHelpTextHtmlRaw( $helptext ) {
-		return $this->getHelpTextHtmlDiv( $helptext );
-	}
-
-	/**
-	 * Determine the help text to display
-	 * @since 1.20
-	 * @return String
-	 */
-	public function getHelpText() {
-		$helptext = null;
-
-		if ( isset( $this->mParams['help-message'] ) ) {
-			$this->mParams['help-messages'] = array( $this->mParams['help-message'] );
-		}
-
-		if ( isset( $this->mParams['help-messages'] ) ) {
-			foreach ( $this->mParams['help-messages'] as $name ) {
-				$helpMessage = (array)$name;
-				$msg = $this->msg( array_shift( $helpMessage ), $helpMessage );
-
-				if ( $msg->exists() ) {
-					if ( is_null( $helptext ) ) {
-						$helptext = '';
-					} else {
-						$helptext .= $this->msg( 'word-separator' )->escaped(); // some space
-					}
-					$helptext .= $msg->parse(); // Append message
-				}
-			}
-		}
-		elseif ( isset( $this->mParams['help'] ) ) {
-			$helptext = $this->mParams['help'];
-		}
-		return $helptext;
-	}
-
-	/**
-	 * Determine form errors to display and their classes
-	 * @since 1.20
-	 * @param string $value the value of the input
-	 * @return Array
-	 */
-	public function getErrorsAndErrorClass( $value ) {
-		$errors = $this->validate( $value, $this->mParent->mFieldData );
-
-		if ( $errors === true || ( !$this->mParent->getRequest()->wasPosted() && ( $this->mParent->getMethod() == 'post' ) ) ) {
-			$errors = '';
-			$errorClass = '';
-		} else {
-			$errors = self::formatErrors( $errors );
-			$errorClass = 'mw-htmlform-invalid-input';
-		}
-		return array( $errors, $errorClass );
-	}
-
-	function getLabel() {
-		return is_null( $this->mLabel ) ? '' : $this->mLabel;
-	}
-
-	function getLabelHtml( $cellAttributes = array() ) {
-		# Don't output a for= attribute for labels with no associated input.
-		# Kind of hacky here, possibly we don't want these to be <label>s at all.
-		$for = array();
-
-		if ( $this->needsLabel() ) {
-			$for['for'] = $this->mID;
-		}
-
-		$labelValue = trim( $this->getLabel() );
-		$hasLabel = false;
-		if ( $labelValue !== '&#160;' && $labelValue !== '' ) {
-			$hasLabel = true;
-		}
-
-		$displayFormat = $this->mParent->getDisplayFormat();
-		$html = '';
-
-		if ( $displayFormat === 'table' ) {
-			$html = Html::rawElement( 'td', array( 'class' => 'mw-label' ) + $cellAttributes,
-				Html::rawElement( 'label', $for, $labelValue )
-			);
-		} elseif ( $hasLabel || $this->mShowEmptyLabels ) {
-			if ( $displayFormat === 'div' ) {
-				$html = Html::rawElement(
-					'div',
-					array( 'class' => 'mw-label' ) + $cellAttributes,
-					Html::rawElement( 'label', $for, $labelValue )
-				);
-			} else {
-				$html = Html::rawElement( 'label', $for, $labelValue );
-			}
-		}
-
-		return $html;
-	}
-
-	function getDefault() {
-		if ( isset( $this->mDefault ) ) {
-			return $this->mDefault;
-		} else {
-			return null;
-		}
-	}
-
-	/**
-	 * Returns the attributes required for the tooltip and accesskey.
-	 *
-	 * @return array Attributes
-	 */
-	public function getTooltipAndAccessKey() {
-		if ( empty( $this->mParams['tooltip'] ) ) {
-			return array();
-		}
-		return Linker::tooltipAndAccesskeyAttribs( $this->mParams['tooltip'] );
-	}
-
-	/**
-	 * flatten an array of options to a single array, for instance,
-	 * a set of "<options>" inside "<optgroups>".
-	 * @param array $options Associative Array with values either Strings
-	 *	 or Arrays
-	 * @return Array flattened input
-	 */
-	public static function flattenOptions( $options ) {
-		$flatOpts = array();
-
-		foreach ( $options as $value ) {
-			if ( is_array( $value ) ) {
-				$flatOpts = array_merge( $flatOpts, self::flattenOptions( $value ) );
-			} else {
-				$flatOpts[] = $value;
-			}
-		}
-
-		return $flatOpts;
-	}
-
-	/**
-	 * Formats one or more errors as accepted by field validation-callback.
-	 * @param $errors String|Message|Array of strings or Message instances
-	 * @return String html
-	 * @since 1.18
-	 */
-	protected static function formatErrors( $errors ) {
-		if ( is_array( $errors ) && count( $errors ) === 1 ) {
-			$errors = array_shift( $errors );
-		}
-
-		if ( is_array( $errors ) ) {
-			$lines = array();
-			foreach ( $errors as $error ) {
-				if ( $error instanceof Message ) {
-					$lines[] = Html::rawElement( 'li', array(), $error->parse() );
-				} else {
-					$lines[] = Html::rawElement( 'li', array(), $error );
-				}
-			}
-			return Html::rawElement( 'ul', array( 'class' => 'error' ), implode( "\n", $lines ) );
-		} else {
-			if ( $errors instanceof Message ) {
-				$errors = $errors->parse();
-			}
-			return Html::rawElement( 'span', array( 'class' => 'error' ), $errors );
-		}
-	}
-}
-
-class HTMLTextField extends HTMLFormField {
-	function getSize() {
-		return isset( $this->mParams['size'] )
-			? $this->mParams['size']
-			: 45;
-	}
-
-	function getInputHTML( $value ) {
-		$attribs = array(
-			'id' => $this->mID,
-			'name' => $this->mName,
-			'size' => $this->getSize(),
-			'value' => $value,
-		) + $this->getTooltipAndAccessKey();
-
-		if ( $this->mClass !== '' ) {
-			$attribs['class'] = $this->mClass;
-		}
-
-		if ( !empty( $this->mParams['disabled'] ) ) {
-			$attribs['disabled'] = 'disabled';
-		}
-
-		# TODO: Enforce pattern, step, required, readonly on the server side as
-		# well
-		$allowedParams = array( 'min', 'max', 'pattern', 'title', 'step',
-			'placeholder', 'list', 'maxlength' );
-		foreach ( $allowedParams as $param ) {
-			if ( isset( $this->mParams[$param] ) ) {
-				$attribs[$param] = $this->mParams[$param];
-			}
-		}
-
-		foreach ( array( 'required', 'autofocus', 'multiple', 'readonly' ) as $param ) {
-			if ( isset( $this->mParams[$param] ) ) {
-				$attribs[$param] = '';
-			}
-		}
-
-		# Implement tiny differences between some field variants
-		# here, rather than creating a new class for each one which
-		# is essentially just a clone of this one.
-		if ( isset( $this->mParams['type'] ) ) {
-			switch ( $this->mParams['type'] ) {
-				case 'email':
-					$attribs['type'] = 'email';
-					break;
-				case 'int':
-					$attribs['type'] = 'number';
-					break;
-				case 'float':
-					$attribs['type'] = 'number';
-					$attribs['step'] = 'any';
-					break;
-				# Pass through
-				case 'password':
-				case 'file':
-					$attribs['type'] = $this->mParams['type'];
-					break;
-			}
-		}
-
-		return Html::element( 'input', $attribs );
-	}
-}
-class HTMLTextAreaField extends HTMLFormField {
-	const DEFAULT_COLS = 80;
-	const DEFAULT_ROWS = 25;
-
-	function getCols() {
-		return isset( $this->mParams['cols'] )
-			? $this->mParams['cols']
-			: static::DEFAULT_COLS;
-	}
-
-	function getRows() {
-		return isset( $this->mParams['rows'] )
-			? $this->mParams['rows']
-			: static::DEFAULT_ROWS;
-	}
-
-	function getInputHTML( $value ) {
-		$attribs = array(
-			'id' => $this->mID,
-			'name' => $this->mName,
-			'cols' => $this->getCols(),
-			'rows' => $this->getRows(),
-		) + $this->getTooltipAndAccessKey();
-
-		if ( $this->mClass !== '' ) {
-			$attribs['class'] = $this->mClass;
-		}
-
-		if ( !empty( $this->mParams['disabled'] ) ) {
-			$attribs['disabled'] = 'disabled';
-		}
-
-		if ( !empty( $this->mParams['readonly'] ) ) {
-			$attribs['readonly'] = 'readonly';
-		}
-
-		if ( isset( $this->mParams['placeholder'] ) ) {
-			$attribs['placeholder'] = $this->mParams['placeholder'];
-		}
-
-		foreach ( array( 'required', 'autofocus' ) as $param ) {
-			if ( isset( $this->mParams[$param] ) ) {
-				$attribs[$param] = '';
-			}
-		}
-
-		return Html::element( 'textarea', $attribs, $value );
-	}
-}
-
-/**
- * A field that will contain a numeric value
- */
-class HTMLFloatField extends HTMLTextField {
-	function getSize() {
-		return isset( $this->mParams['size'] )
-			? $this->mParams['size']
-			: 20;
-	}
-
-	function validate( $value, $alldata ) {
-		$p = parent::validate( $value, $alldata );
-
-		if ( $p !== true ) {
-			return $p;
-		}
-
-		$value = trim( $value );
-
-		# http://dev.w3.org/html5/spec/common-microsyntaxes.html#real-numbers
-		# with the addition that a leading '+' sign is ok.
-		if ( !preg_match( '/^((\+|\-)?\d+(\.\d+)?(E(\+|\-)?\d+)?)?$/i', $value ) ) {
-			return $this->msg( 'htmlform-float-invalid' )->parseAsBlock();
-		}
-
-		# The "int" part of these message names is rather confusing.
-		# They make equal sense for all numbers.
-		if ( isset( $this->mParams['min'] ) ) {
-			$min = $this->mParams['min'];
-
-			if ( $min > $value ) {
-				return $this->msg( 'htmlform-int-toolow', $min )->parseAsBlock();
-			}
-		}
-
-		if ( isset( $this->mParams['max'] ) ) {
-			$max = $this->mParams['max'];
-
-			if ( $max < $value ) {
-				return $this->msg( 'htmlform-int-toohigh', $max )->parseAsBlock();
-			}
-		}
-
-		return true;
-	}
-}
-
-/**
- * A field that must contain a number
- */
-class HTMLIntField extends HTMLFloatField {
-	function validate( $value, $alldata ) {
-		$p = parent::validate( $value, $alldata );
-
-		if ( $p !== true ) {
-			return $p;
-		}
-
-		# http://dev.w3.org/html5/spec/common-microsyntaxes.html#signed-integers
-		# with the addition that a leading '+' sign is ok. Note that leading zeros
-		# are fine, and will be left in the input, which is useful for things like
-		# phone numbers when you know that they are integers (the HTML5 type=tel
-		# input does not require its value to be numeric).  If you want a tidier
-		# value to, eg, save in the DB, clean it up with intval().
-		if ( !preg_match( '/^((\+|\-)?\d+)?$/', trim( $value ) )
-		) {
-			return $this->msg( 'htmlform-int-invalid' )->parseAsBlock();
-		}
-
-		return true;
-	}
-}
-
-/**
- * A checkbox field
- */
-class HTMLCheckField extends HTMLFormField {
-	function getInputHTML( $value ) {
-		if ( !empty( $this->mParams['invert'] ) ) {
-			$value = !$value;
-		}
-
-		$attr = $this->getTooltipAndAccessKey();
-		$attr['id'] = $this->mID;
-
-		if ( !empty( $this->mParams['disabled'] ) ) {
-			$attr['disabled'] = 'disabled';
-		}
-
-		if ( $this->mClass !== '' ) {
-			$attr['class'] = $this->mClass;
-		}
-
-		if ( $this->mParent->isVForm() ) {
-			// Nest checkbox inside label.
-			return Html::rawElement(
-					'label',
-					array(
-						'class' => 'mw-ui-checkbox-label'
-					),
-					Xml::check(
-						$this->mName,
-						$value,
-						$attr
-					) .
-					// Html:rawElement doesn't escape contents.
-					htmlspecialchars( $this->mLabel )
-				);
-		} else {
-			return Xml::check( $this->mName, $value, $attr ) . '&#160;' .
-				Html::rawElement( 'label', array( 'for' => $this->mID ), $this->mLabel );
-		}
-	}
-
-	/**
-	 * For a checkbox, the label goes on the right hand side, and is
-	 * added in getInputHTML(), rather than HTMLFormField::getRow()
-	 * @return String
-	 */
-	function getLabel() {
-		return '&#160;';
-	}
-
-	/**
-	 * checkboxes don't need a label.
-	 */
-	protected function needsLabel() {
-		return false;
-	}
-
-	/**
-	 * @param  $request WebRequest
-	 * @return String
-	 */
-	function loadDataFromRequest( $request ) {
-		$invert = false;
-		if ( isset( $this->mParams['invert'] ) && $this->mParams['invert'] ) {
-			$invert = true;
-		}
-
-		// GetCheck won't work like we want for checks.
-		// Fetch the value in either one of the two following case:
-		// - we have a valid token (form got posted or GET forged by the user)
-		// - checkbox name has a value (false or true), ie is not null
-		if ( $request->getCheck( 'wpEditToken' ) || $request->getVal( $this->mName ) !== null ) {
-			// XOR has the following truth table, which is what we want
-			// INVERT VALUE | OUTPUT
-			// true   true  | false
-			// false  true  | true
-			// false  false | false
-			// true   false | true
-			return $request->getBool( $this->mName ) xor $invert;
-		} else {
-			return $this->getDefault();
-		}
-	}
-}
-
-/**
- * A checkbox matrix
- * Operates similarly to HTMLMultiSelectField, but instead of using an array of
- * options, uses an array of rows and an array of columns to dynamically
- * construct a matrix of options. The tags used to identify a particular cell
- * are of the form "columnName-rowName"
- *
- * Options:
- *   - columns
- *     - Required list of columns in the matrix.
- *   - rows
- *     - Required list of rows in the matrix.
- *   - force-options-on
- *     - Accepts array of column-row tags to be displayed as enabled but unavailable to change
- *   - force-options-off
- *     - Accepts array of column-row tags to be displayed as disabled but unavailable to change.
- *   - tooltips
- *     - Optional array mapping row label to tooltip content
- *   - tooltip-class
- *     - Optional CSS class used on tooltip container span. Defaults to mw-icon-question.
- */
-class HTMLCheckMatrix extends HTMLFormField implements HTMLNestedFilterable {
-
-	static private $requiredParams = array(
-		// Required by underlying HTMLFormField
-		'fieldname',
-		// Required by HTMLCheckMatrix
-		'rows', 'columns'
-	);
-
-	public function __construct( $params ) {
-		$missing = array_diff( self::$requiredParams, array_keys( $params ) );
-		if ( $missing ) {
-			throw new HTMLFormFieldRequiredOptionsException( $this, $missing );
-		}
-		parent::__construct( $params );
-	}
-
-	function validate( $value, $alldata ) {
-		$rows = $this->mParams['rows'];
-		$columns = $this->mParams['columns'];
-
-		// Make sure user-defined validation callback is run
-		$p = parent::validate( $value, $alldata );
-		if ( $p !== true ) {
-			return $p;
-		}
-
-		// Make sure submitted value is an array
-		if ( !is_array( $value ) ) {
-			return false;
-		}
-
-		// If all options are valid, array_intersect of the valid options
-		// and the provided options will return the provided options.
-		$validOptions = array();
-		foreach ( $rows as $rowTag ) {
-			foreach ( $columns as $columnTag ) {
-				$validOptions[] = $columnTag . '-' . $rowTag;
-			}
-		}
-		$validValues = array_intersect( $value, $validOptions );
-		if ( count( $validValues ) == count( $value ) ) {
-			return true;
-		} else {
-			return $this->msg( 'htmlform-select-badoption' )->parse();
-		}
-	}
-
-	/**
-	 * Build a table containing a matrix of checkbox options.
-	 * The value of each option is a combination of the row tag and column tag.
-	 * mParams['rows'] is an array with row labels as keys and row tags as values.
-	 * mParams['columns'] is an array with column labels as keys and column tags as values.
-	 * @param array $value of the options that should be checked
-	 * @return String
-	 */
-	function getInputHTML( $value ) {
-		$html = '';
-		$tableContents = '';
-		$attribs = array();
-		$rows = $this->mParams['rows'];
-		$columns = $this->mParams['columns'];
-
-		// If the disabled param is set, disable all the options
-		if ( !empty( $this->mParams['disabled'] ) ) {
-			$attribs['disabled'] = 'disabled';
-		}
-
-		// Build the column headers
-		$headerContents = Html::rawElement( 'td', array(), '&#160;' );
-		foreach ( $columns as $columnLabel => $columnTag ) {
-			$headerContents .= Html::rawElement( 'td', array(), $columnLabel );
-		}
-		$tableContents .= Html::rawElement( 'tr', array(), "\n$headerContents\n" );
-
-		$tooltipClass = 'mw-icon-question';
-		if ( isset( $this->mParams['tooltip-class'] ) ) {
-			$tooltipClass = $this->mParams['tooltip-class'];
-		}
-
-		// Build the options matrix
-		foreach ( $rows as $rowLabel => $rowTag ) {
-			// Append tooltip if configured
-			if ( isset( $this->mParams['tooltips'][$rowLabel] ) ) {
-				$tooltipAttribs = array(
-					'class' => "mw-htmlform-tooltip $tooltipClass",
-					'title' =>  $this->mParams['tooltips'][$rowLabel],
-				);
-				$rowLabel .= ' ' . Html::element( 'span', $tooltipAttribs, '' );
-			}
-			$rowContents = Html::rawElement( 'td', array(), $rowLabel );
-			foreach ( $columns as $columnTag ) {
-				$thisTag = "$columnTag-$rowTag";
-				// Construct the checkbox
-				$thisAttribs = array(
-					'id' => "{$this->mID}-$thisTag",
-					'value' => $thisTag,
-				);
-				$checked = in_array( $thisTag, (array)$value, true );
-				if ( $this->isTagForcedOff( $thisTag ) ) {
-					$checked = false;
-					$thisAttribs['disabled'] = 1;
-				} elseif ( $this->isTagForcedOn( $thisTag ) ) {
-					$checked = true;
-					$thisAttribs['disabled'] = 1;
-				}
-				$rowContents .= Html::rawElement(
-					'td',
-					array(),
-					Xml::check( "{$this->mName}[]", $checked, $attribs + $thisAttribs )
-				);
-			}
-			$tableContents .= Html::rawElement( 'tr', array(), "\n$rowContents\n" );
-		}
-
-		// Put it all in a table
-		$html .= Html::rawElement( 'table', array( 'class' => 'mw-htmlform-matrix' ),
-			Html::rawElement( 'tbody', array(), "\n$tableContents\n" ) ) . "\n";
-
-		return $html;
-	}
-
-	protected function isTagForcedOff( $tag ) {
-		return isset( $this->mParams['force-options-off'] )
-			&& in_array( $tag, $this->mParams['force-options-off'] );
-	}
-
-	protected function isTagForcedOn( $tag ) {
-		return isset( $this->mParams['force-options-on'] )
-			&& in_array( $tag, $this->mParams['force-options-on'] );
-	}
-
-	/**
-	 * Get the complete table row for the input, including help text,
-	 * labels, and whatever.
-	 * We override this function since the label should always be on a separate
-	 * line above the options in the case of a checkbox matrix, i.e. it's always
-	 * a "vertical-label".
-	 * @param string $value the value to set the input to
-	 * @return String complete HTML table row
-	 */
-	function getTableRow( $value ) {
-		list( $errors, $errorClass ) = $this->getErrorsAndErrorClass( $value );
-		$inputHtml = $this->getInputHTML( $value );
-		$fieldType = get_class( $this );
-		$helptext = $this->getHelpTextHtmlTable( $this->getHelpText() );
-		$cellAttributes = array( 'colspan' => 2 );
-
-		$label = $this->getLabelHtml( $cellAttributes );
-
-		$field = Html::rawElement(
-			'td',
-			array( 'class' => 'mw-input' ) + $cellAttributes,
-			$inputHtml . "\n$errors"
-		);
-
-		$html = Html::rawElement( 'tr',
-			array( 'class' => 'mw-htmlform-vertical-label' ), $label );
-		$html .= Html::rawElement( 'tr',
-			array( 'class' => "mw-htmlform-field-$fieldType {$this->mClass} $errorClass" ),
-			$field );
-
-		return $html . $helptext;
-	}
-
-	/**
-	 * @param $request WebRequest
-	 * @return Array
-	 */
-	function loadDataFromRequest( $request ) {
-		if ( $this->mParent->getMethod() == 'post' ) {
-			if ( $request->wasPosted() ) {
-				// Checkboxes are not added to the request arrays if they're not checked,
-				// so it's perfectly possible for there not to be an entry at all
-				return $request->getArray( $this->mName, array() );
-			} else {
-				// That's ok, the user has not yet submitted the form, so show the defaults
-				return $this->getDefault();
-			}
-		} else {
-			// This is the impossible case: if we look at $_GET and see no data for our
-			// field, is it because the user has not yet submitted the form, or that they
-			// have submitted it with all the options unchecked. We will have to assume the
-			// latter, which basically means that you can't specify 'positive' defaults
-			// for GET forms.
-			return $request->getArray( $this->mName, array() );
-		}
-	}
-
-	function getDefault() {
-		if ( isset( $this->mDefault ) ) {
-			return $this->mDefault;
-		} else {
-			return array();
-		}
-	}
-
-	function filterDataForSubmit( $data ) {
-		$columns = HTMLFormField::flattenOptions( $this->mParams['columns'] );
-		$rows = HTMLFormField::flattenOptions( $this->mParams['rows'] );
-		$res = array();
-		foreach ( $columns as $column ) {
-			foreach ( $rows as $row ) {
-				// Make sure option hasn't been forced
-				$thisTag = "$column-$row";
-				if ( $this->isTagForcedOff( $thisTag ) ) {
-					$res[$thisTag] = false;
-				} elseif ( $this->isTagForcedOn( $thisTag ) ) {
-					$res[$thisTag] = true;
-				} else {
-					$res[$thisTag] = in_array( $thisTag, $data );
-				}
-			}
-		}
-
-		return $res;
-	}
-}
-
-/**
- * A select dropdown field.  Basically a wrapper for Xmlselect class
- */
-class HTMLSelectField extends HTMLFormField {
-	function validate( $value, $alldata ) {
-		$p = parent::validate( $value, $alldata );
-
-		if ( $p !== true ) {
-			return $p;
-		}
-
-		$validOptions = HTMLFormField::flattenOptions( $this->mParams['options'] );
-
-		if ( in_array( $value, $validOptions ) ) {
-			return true;
-		} else {
-			return $this->msg( 'htmlform-select-badoption' )->parse();
-		}
-	}
-
-	function getInputHTML( $value ) {
-		$select = new XmlSelect( $this->mName, $this->mID, strval( $value ) );
-
-		# If one of the options' 'name' is int(0), it is automatically selected.
-		# because PHP sucks and thinks int(0) == 'some string'.
-		# Working around this by forcing all of them to strings.
-		foreach ( $this->mParams['options'] as &$opt ) {
-			if ( is_int( $opt ) ) {
-				$opt = strval( $opt );
-			}
-		}
-		unset( $opt ); # PHP keeps $opt around as a reference, which is a bit scary
-
-		if ( !empty( $this->mParams['disabled'] ) ) {
-			$select->setAttribute( 'disabled', 'disabled' );
-		}
-
-		if ( $this->mClass !== '' ) {
-			$select->setAttribute( 'class', $this->mClass );
-		}
-
-		$select->addOptions( $this->mParams['options'] );
-
-		return $select->getHTML();
-	}
-}
-
-/**
- * Select dropdown field, with an additional "other" textbox.
- */
-class HTMLSelectOrOtherField extends HTMLTextField {
-
-	function __construct( $params ) {
-		if ( !in_array( 'other', $params['options'], true ) ) {
-			$msg = isset( $params['other'] ) ?
-				$params['other'] :
-				wfMessage( 'htmlform-selectorother-other' )->text();
-			$params['options'][$msg] = 'other';
-		}
-
-		parent::__construct( $params );
-	}
-
-	static function forceToStringRecursive( $array ) {
-		if ( is_array( $array ) ) {
-			return array_map( array( __CLASS__, 'forceToStringRecursive' ), $array );
-		} else {
-			return strval( $array );
-		}
-	}
-
-	function getInputHTML( $value ) {
-		$valInSelect = false;
-
-		if ( $value !== false ) {
-			$valInSelect = in_array(
-				$value,
-				HTMLFormField::flattenOptions( $this->mParams['options'] )
-			);
-		}
-
-		$selected = $valInSelect ? $value : 'other';
-
-		$opts = self::forceToStringRecursive( $this->mParams['options'] );
-
-		$select = new XmlSelect( $this->mName, $this->mID, $selected );
-		$select->addOptions( $opts );
-
-		$select->setAttribute( 'class', 'mw-htmlform-select-or-other' );
-
-		$tbAttribs = array( 'id' => $this->mID . '-other', 'size' => $this->getSize() );
-
-		if ( !empty( $this->mParams['disabled'] ) ) {
-			$select->setAttribute( 'disabled', 'disabled' );
-			$tbAttribs['disabled'] = 'disabled';
-		}
-
-		$select = $select->getHTML();
-
-		if ( isset( $this->mParams['maxlength'] ) ) {
-			$tbAttribs['maxlength'] = $this->mParams['maxlength'];
-		}
-
-		if ( $this->mClass !== '' ) {
-			$tbAttribs['class'] = $this->mClass;
-		}
-
-		$textbox = Html::input(
-			$this->mName . '-other',
-			$valInSelect ? '' : $value,
-			'text',
-			$tbAttribs
-		);
-
-		return "$select<br />\n$textbox";
-	}
-
-	/**
-	 * @param  $request WebRequest
-	 * @return String
-	 */
-	function loadDataFromRequest( $request ) {
-		if ( $request->getCheck( $this->mName ) ) {
-			$val = $request->getText( $this->mName );
-
-			if ( $val == 'other' ) {
-				$val = $request->getText( $this->mName . '-other' );
-			}
-
-			return $val;
-		} else {
-			return $this->getDefault();
-		}
-	}
-}
-
-/**
- * Multi-select field
- */
-class HTMLMultiSelectField extends HTMLFormField implements HTMLNestedFilterable {
-
-	function validate( $value, $alldata ) {
-		$p = parent::validate( $value, $alldata );
-
-		if ( $p !== true ) {
-			return $p;
-		}
-
-		if ( !is_array( $value ) ) {
-			return false;
-		}
-
-		# If all options are valid, array_intersect of the valid options
-		# and the provided options will return the provided options.
-		$validOptions = HTMLFormField::flattenOptions( $this->mParams['options'] );
-
-		$validValues = array_intersect( $value, $validOptions );
-		if ( count( $validValues ) == count( $value ) ) {
-			return true;
-		} else {
-			return $this->msg( 'htmlform-select-badoption' )->parse();
-		}
-	}
-
-	function getInputHTML( $value ) {
-		$html = $this->formatOptions( $this->mParams['options'], $value );
-
-		return $html;
-	}
-
-	function formatOptions( $options, $value ) {
-		$html = '';
-
-		$attribs = array();
-
-		if ( !empty( $this->mParams['disabled'] ) ) {
-			$attribs['disabled'] = 'disabled';
-		}
-
-		foreach ( $options as $label => $info ) {
-			if ( is_array( $info ) ) {
-				$html .= Html::rawElement( 'h1', array(), $label ) . "\n";
-				$html .= $this->formatOptions( $info, $value );
-			} else {
-				$thisAttribs = array( 'id' => "{$this->mID}-$info", 'value' => $info );
-
-				$checkbox = Xml::check(
-					$this->mName . '[]',
-					in_array( $info, $value, true ),
-					$attribs + $thisAttribs );
-				$checkbox .= '&#160;' . Html::rawElement( 'label', array( 'for' => "{$this->mID}-$info" ), $label );
-
-				$html .= ' ' . Html::rawElement( 'div', array( 'class' => 'mw-htmlform-flatlist-item' ), $checkbox );
-			}
-		}
-
-		return $html;
-	}
-
-	/**
-	 * @param  $request WebRequest
-	 * @return String
-	 */
-	function loadDataFromRequest( $request ) {
-		if ( $this->mParent->getMethod() == 'post' ) {
-			if ( $request->wasPosted() ) {
-				# Checkboxes are just not added to the request arrays if they're not checked,
-				# so it's perfectly possible for there not to be an entry at all
-				return $request->getArray( $this->mName, array() );
-			} else {
-				# That's ok, the user has not yet submitted the form, so show the defaults
-				return $this->getDefault();
-			}
-		} else {
-			# This is the impossible case: if we look at $_GET and see no data for our
-			# field, is it because the user has not yet submitted the form, or that they
-			# have submitted it with all the options unchecked? We will have to assume the
-			# latter, which basically means that you can't specify 'positive' defaults
-			# for GET forms.
-			# @todo FIXME...
-			return $request->getArray( $this->mName, array() );
-		}
-	}
-
-	function getDefault() {
-		if ( isset( $this->mDefault ) ) {
-			return $this->mDefault;
-		} else {
-			return array();
-		}
-	}
-
-	function filterDataForSubmit( $data ) {
-		$options = HTMLFormField::flattenOptions( $this->mParams['options'] );
-
-		$res = array();
-		foreach ( $options as $opt ) {
-			$res["$opt"] = in_array( $opt, $data );
-		}
-
-		return $res;
-	}
-
-	protected function needsLabel() {
-		return false;
-	}
-}
-
-/**
- * Double field with a dropdown list constructed from a system message in the format
- *     * Optgroup header
- *     ** <option value>
- *     * New Optgroup header
- * Plus a text field underneath for an additional reason.  The 'value' of the field is
- * "<select>: <extra reason>", or "<extra reason>" if nothing has been selected in the
- * select dropdown.
- * @todo FIXME: If made 'required', only the text field should be compulsory.
- */
-class HTMLSelectAndOtherField extends HTMLSelectField {
-
-	function __construct( $params ) {
-		if ( array_key_exists( 'other', $params ) ) {
-		} elseif ( array_key_exists( 'other-message', $params ) ) {
-			$params['other'] = wfMessage( $params['other-message'] )->plain();
-		} else {
-			$params['other'] = null;
-		}
-
-		if ( array_key_exists( 'options', $params ) ) {
-			# Options array already specified
-		} elseif ( array_key_exists( 'options-message', $params ) ) {
-			# Generate options array from a system message
-			$params['options'] = self::parseMessage(
-				wfMessage( $params['options-message'] )->inContentLanguage()->plain(),
-				$params['other']
-			);
-		} else {
-			# Sulk
-			throw new MWException( 'HTMLSelectAndOtherField called without any options' );
-		}
-		$this->mFlatOptions = self::flattenOptions( $params['options'] );
-
-		parent::__construct( $params );
-	}
-
-	/**
-	 * Build a drop-down box from a textual list.
-	 * @param string $string message text
-	 * @param string $otherName name of "other reason" option
-	 * @return Array
-	 * TODO: this is copied from Xml::listDropDown(), deprecate/avoid duplication?
-	 */
-	public static function parseMessage( $string, $otherName = null ) {
-		if ( $otherName === null ) {
-			$otherName = wfMessage( 'htmlform-selectorother-other' )->plain();
-		}
-
-		$optgroup = false;
-		$options = array( $otherName => 'other' );
-
-		foreach ( explode( "\n", $string ) as $option ) {
-			$value = trim( $option );
-			if ( $value == '' ) {
-				continue;
-			} elseif ( substr( $value, 0, 1 ) == '*' && substr( $value, 1, 1 ) != '*' ) {
-				# A new group is starting...
-				$value = trim( substr( $value, 1 ) );
-				$optgroup = $value;
-			} elseif ( substr( $value, 0, 2 ) == '**' ) {
-				# groupmember
-				$opt = trim( substr( $value, 2 ) );
-				if ( $optgroup === false ) {
-					$options[$opt] = $opt;
-				} else {
-					$options[$optgroup][$opt] = $opt;
-				}
-			} else {
-				# groupless reason list
-				$optgroup = false;
-				$options[$option] = $option;
-			}
-		}
-
-		return $options;
-	}
-
-	function getInputHTML( $value ) {
-		$select = parent::getInputHTML( $value[1] );
-
-		$textAttribs = array(
-			'id' => $this->mID . '-other',
-			'size' => $this->getSize(),
-		);
-
-		if ( $this->mClass !== '' ) {
-			$textAttribs['class'] = $this->mClass;
-		}
-
-		foreach ( array( 'required', 'autofocus', 'multiple', 'disabled' ) as $param ) {
-			if ( isset( $this->mParams[$param] ) ) {
-				$textAttribs[$param] = '';
-			}
-		}
-
-		$textbox = Html::input(
-			$this->mName . '-other',
-			$value[2],
-			'text',
-			$textAttribs
-		);
-
-		return "$select<br />\n$textbox";
-	}
-
-	/**
-	 * @param  $request WebRequest
-	 * @return Array("<overall message>","<select value>","<text field value>")
-	 */
-	function loadDataFromRequest( $request ) {
-		if ( $request->getCheck( $this->mName ) ) {
-
-			$list = $request->getText( $this->mName );
-			$text = $request->getText( $this->mName . '-other' );
-
-			if ( $list == 'other' ) {
-				$final = $text;
-			} elseif ( !in_array( $list, $this->mFlatOptions ) ) {
-				# User has spoofed the select form to give an option which wasn't
-				# in the original offer.  Sulk...
-				$final = $text;
-			} elseif ( $text == '' ) {
-				$final = $list;
-			} else {
-				$final = $list . $this->msg( 'colon-separator' )->inContentLanguage()->text() . $text;
-			}
-
-		} else {
-			$final = $this->getDefault();
-
-			$list = 'other';
-			$text = $final;
-			foreach ( $this->mFlatOptions as $option ) {
-				$match = $option . $this->msg( 'colon-separator' )->inContentLanguage()->text();
-				if ( strpos( $text, $match ) === 0 ) {
-					$list = $option;
-					$text = substr( $text, strlen( $match ) );
-					break;
-				}
-			}
-		}
-		return array( $final, $list, $text );
-	}
-
-	function getSize() {
-		return isset( $this->mParams['size'] )
-			? $this->mParams['size']
-			: 45;
-	}
-
-	function validate( $value, $alldata ) {
-		# HTMLSelectField forces $value to be one of the options in the select
-		# field, which is not useful here.  But we do want the validation further up
-		# the chain
-		$p = parent::validate( $value[1], $alldata );
-
-		if ( $p !== true ) {
-			return $p;
-		}
-
-		if ( isset( $this->mParams['required'] ) && $this->mParams['required'] !== false && $value[1] === '' ) {
-			return $this->msg( 'htmlform-required' )->parse();
-		}
-
-		return true;
-	}
-}
-
-/**
- * Radio checkbox fields.
- */
-class HTMLRadioField extends HTMLFormField {
-
-	function validate( $value, $alldata ) {
-		$p = parent::validate( $value, $alldata );
-
-		if ( $p !== true ) {
-			return $p;
-		}
-
-		if ( !is_string( $value ) && !is_int( $value ) ) {
-			return false;
-		}
-
-		$validOptions = HTMLFormField::flattenOptions( $this->mParams['options'] );
-
-		if ( in_array( $value, $validOptions ) ) {
-			return true;
-		} else {
-			return $this->msg( 'htmlform-select-badoption' )->parse();
-		}
-	}
-
-	/**
-	 * This returns a block of all the radio options, in one cell.
-	 * @see includes/HTMLFormField#getInputHTML()
-	 * @param $value String
-	 * @return String
-	 */
-	function getInputHTML( $value ) {
-		$html = $this->formatOptions( $this->mParams['options'], $value );
-
-		return $html;
-	}
-
-	function formatOptions( $options, $value ) {
-		$html = '';
-
-		$attribs = array();
-		if ( !empty( $this->mParams['disabled'] ) ) {
-			$attribs['disabled'] = 'disabled';
-		}
-
-		# TODO: should this produce an unordered list perhaps?
-		foreach ( $options as $label => $info ) {
-			if ( is_array( $info ) ) {
-				$html .= Html::rawElement( 'h1', array(), $label ) . "\n";
-				$html .= $this->formatOptions( $info, $value );
-			} else {
-				$id = Sanitizer::escapeId( $this->mID . "-$info" );
-				$radio = Xml::radio(
-					$this->mName,
-					$info,
-					$info == $value,
-					$attribs + array( 'id' => $id )
-				);
-				$radio .= '&#160;' .
-						Html::rawElement( 'label', array( 'for' => $id ), $label );
-
-				$html .= ' ' . Html::rawElement( 'div', array( 'class' => 'mw-htmlform-flatlist-item' ), $radio );
-			}
-		}
-
-		return $html;
-	}
-
-	protected function needsLabel() {
-		return false;
-	}
-}
-
-/**
- * An information field (text blob), not a proper input.
- */
-class HTMLInfoField extends HTMLFormField {
-	public function __construct( $info ) {
-		$info['nodata'] = true;
-
-		parent::__construct( $info );
-	}
-
-	public function getInputHTML( $value ) {
-		return !empty( $this->mParams['raw'] ) ? $value : htmlspecialchars( $value );
-	}
-
-	public function getTableRow( $value ) {
-		if ( !empty( $this->mParams['rawrow'] ) ) {
-			return $value;
-		}
-
-		return parent::getTableRow( $value );
-	}
-
-	/**
-	 * @since 1.20
-	 */
-	public function getDiv( $value ) {
-		if ( !empty( $this->mParams['rawrow'] ) ) {
-			return $value;
-		}
-
-		return parent::getDiv( $value );
-	}
-
-	/**
-	 * @since 1.20
-	 */
-	public function getRaw( $value ) {
-		if ( !empty( $this->mParams['rawrow'] ) ) {
-			return $value;
-		}
-
-		return parent::getRaw( $value );
-	}
-
-	protected function needsLabel() {
-		return false;
-	}
-}
-
-class HTMLHiddenField extends HTMLFormField {
-	public function __construct( $params ) {
-		parent::__construct( $params );
-
-		# Per HTML5 spec, hidden fields cannot be 'required'
-		# http://dev.w3.org/html5/spec/states-of-the-type-attribute.html#hidden-state
-		unset( $this->mParams['required'] );
-	}
-
-	public function getTableRow( $value ) {
-		$params = array();
-		if ( $this->mID ) {
-			$params['id'] = $this->mID;
-		}
-
-		$this->mParent->addHiddenField(
-			$this->mName,
-			$this->mDefault,
-			$params
-		);
-
-		return '';
-	}
-
-	/**
-	 * @since 1.20
-	 */
-	public function getDiv( $value ) {
-		return $this->getTableRow( $value );
-	}
-
-	/**
-	 * @since 1.20
-	 */
-	public function getRaw( $value ) {
-		return $this->getTableRow( $value );
-	}
-
-	public function getInputHTML( $value ) {
-		return '';
-	}
-}
-
-/**
- * Add a submit button inline in the form (as opposed to
- * HTMLForm::addButton(), which will add it at the end).
- */
-class HTMLSubmitField extends HTMLButtonField {
-	protected $buttonType = 'submit';
-}
-
-/**
- * Adds a generic button inline to the form. Does not do anything, you must add
- * click handling code in JavaScript. Use a HTMLSubmitField if you merely
- * wish to add a submit button to a form.
- *
- * @since 1.22
- */
-class HTMLButtonField extends HTMLFormField {
-	protected $buttonType = 'button';
-
-	public function __construct( $info ) {
-		$info['nodata'] = true;
-		parent::__construct( $info );
-	}
-
-	public function getInputHTML( $value ) {
-		$attr = array(
-			'class' => 'mw-htmlform-submit ' . $this->mClass,
-			'id' => $this->mID,
-		);
-
-		if ( !empty( $this->mParams['disabled'] ) ) {
-			$attr['disabled'] = 'disabled';
-		}
-
-		return Html::input(
-			$this->mName,
-			$value,
-			$this->buttonType,
-			$attr
-		);
-	}
-
-	protected function needsLabel() {
-		return false;
-	}
-
-	/**
-	 * Button cannot be invalid
-	 * @param $value String
-	 * @param $alldata Array
-	 * @return Bool
-	 */
-	public function validate( $value, $alldata ) {
-		return true;
-	}
-}
-
-class HTMLEditTools extends HTMLFormField {
-	public function getInputHTML( $value ) {
-		return '';
-	}
-
-	public function getTableRow( $value ) {
-		$msg = $this->formatMsg();
-
-		return '<tr><td></td><td class="mw-input">'
-			. '<div class="mw-editTools">'
-			. $msg->parseAsBlock()
-			. "</div></td></tr>\n";
-	}
-
-	/**
-	 * @since 1.20
-	 */
-	public function getDiv( $value ) {
-		$msg = $this->formatMsg();
-		return '<div class="mw-editTools">' . $msg->parseAsBlock() . '</div>';
-	}
-
-	/**
-	 * @since 1.20
-	 */
-	public function getRaw( $value ) {
-		return $this->getDiv( $value );
-	}
-
-	protected function formatMsg() {
-		if ( empty( $this->mParams['message'] ) ) {
-			$msg = $this->msg( 'edittools' );
-		} else {
-			$msg = $this->msg( $this->mParams['message'] );
-			if ( $msg->isDisabled() ) {
-				$msg = $this->msg( 'edittools' );
-			}
-		}
-		$msg->inContentLanguage();
-		return $msg;
-	}
-}
-
-class HTMLApiField extends HTMLFormField {
-	public function getTableRow( $value ) {
-		return '';
-	}
-
-	public function getDiv( $value ) {
-		return $this->getTableRow( $value );
-	}
-
-	public function getRaw( $value ) {
-		return $this->getTableRow( $value );
-	}
-
-	public function getInputHTML( $value ) {
-		return '';
-	}
-}
-
-interface HTMLNestedFilterable {
-	/**
-	 * Support for seperating multi-option preferences into multiple preferences
-	 * Due to lack of array support.
-	 * @param $data array
-	 */
-	function filterDataForSubmit( $data );
-}
-
-class HTMLFormFieldRequiredOptionsException extends MWException {
-	public function __construct( HTMLFormField $field, array $missing ) {
-		parent::__construct( sprintf(
-			"Form type `%s` expected the following parameters to be set: %s",
-			get_class( $field ),
-			implode( ', ', $missing )
-		) );
-	}
-}
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