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<?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 */ namespace MediaWiki\HTMLForm; use DomainException; use InvalidArgumentException; use LogicException; use MediaWiki\Context\ContextSource; use MediaWiki\Context\IContextSource; use MediaWiki\Debug\MWDebug; use MediaWiki\HookContainer\ProtectedHookAccessorTrait; use MediaWiki\Html\Html; use MediaWiki\HTMLForm\Field\HTMLApiField; use MediaWiki\HTMLForm\Field\HTMLAutoCompleteSelectField; use MediaWiki\HTMLForm\Field\HTMLCheckField; use MediaWiki\HTMLForm\Field\HTMLCheckMatrix; use MediaWiki\HTMLForm\Field\HTMLComboboxField; use MediaWiki\HTMLForm\Field\HTMLDateTimeField; use MediaWiki\HTMLForm\Field\HTMLEditTools; use MediaWiki\HTMLForm\Field\HTMLExpiryField; use MediaWiki\HTMLForm\Field\HTMLFileField; use MediaWiki\HTMLForm\Field\HTMLFloatField; use MediaWiki\HTMLForm\Field\HTMLFormFieldCloner; use MediaWiki\HTMLForm\Field\HTMLHiddenField; use MediaWiki\HTMLForm\Field\HTMLInfoField; use MediaWiki\HTMLForm\Field\HTMLIntField; use MediaWiki\HTMLForm\Field\HTMLMultiSelectField; use MediaWiki\HTMLForm\Field\HTMLNamespacesMultiselectField; use MediaWiki\HTMLForm\Field\HTMLRadioField; use MediaWiki\HTMLForm\Field\HTMLSelectAndOtherField; use MediaWiki\HTMLForm\Field\HTMLSelectField; use MediaWiki\HTMLForm\Field\HTMLSelectLanguageField; use MediaWiki\HTMLForm\Field\HTMLSelectLimitField; use MediaWiki\HTMLForm\Field\HTMLSelectNamespace; use MediaWiki\HTMLForm\Field\HTMLSelectNamespaceWithButton; use MediaWiki\HTMLForm\Field\HTMLSelectOrOtherField; use MediaWiki\HTMLForm\Field\HTMLSizeFilterField; use MediaWiki\HTMLForm\Field\HTMLSubmitField; use MediaWiki\HTMLForm\Field\HTMLTagFilter; use MediaWiki\HTMLForm\Field\HTMLTagMultiselectField; use MediaWiki\HTMLForm\Field\HTMLTextAreaField; use MediaWiki\HTMLForm\Field\HTMLTextField; use MediaWiki\HTMLForm\Field\HTMLTextFieldWithButton; use MediaWiki\HTMLForm\Field\HTMLTimezoneField; use MediaWiki\HTMLForm\Field\HTMLTitlesMultiselectField; use MediaWiki\HTMLForm\Field\HTMLTitleTextField; use MediaWiki\HTMLForm\Field\HTMLUsersMultiselectField; use MediaWiki\HTMLForm\Field\HTMLUserTextField; use MediaWiki\Linker\Linker; use MediaWiki\Linker\LinkTarget; use MediaWiki\MainConfigNames; use MediaWiki\Message\Message; use MediaWiki\Page\PageReference; use MediaWiki\Parser\Sanitizer; use MediaWiki\Status\Status; use MediaWiki\Title\Title; use MediaWiki\Title\TitleValue; use MediaWiki\Xml\Xml; use StatusValue; use Stringable; use Wikimedia\Message\MessageParam; use Wikimedia\Message\MessageSpecifier; /** * 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: * - https://www.mediawiki.org/wiki/HTMLForm * - https://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 * 'nodata' -- if set (to any value, which casts to true), the data * for this field will not be loaded from the actual request. Instead, * always the default data is set as the value of this field. * 'id' -- HTML id attribute * 'cssclass' -- CSS class * 'csshelpclass' -- CSS class used to style help text * 'dir' -- Direction of the element. * 'options' -- associative array mapping raw HTML labels to values. * Some field types support multi-level arrays. * Overwrites 'options-message'. * 'options-messages' -- associative array mapping message keys to values. * Some field types support multi-level arrays. * Overwrites 'options' and 'options-message'. * 'options-messages-parse' -- Flag to parse the messages in 'options-messages'. * 'options-message' -- message key or object to be parsed to extract the list of * options (like 'ipbreason-dropdown'). * 'label-message' -- message key or object 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-raw' -- message text for a message to use as a help text. * 'help-message' -- message key or object 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-raw'. * 'help-messages' -- array of message keys/objects. As above, each item can * be an array of msg key and then parameters. * Overwrites 'help-raw'. * 'help-inline' -- Whether help text (defined using options above) will be shown * inline after the input field, rather than in a popup. * Defaults to true. Only used by OOUI form fields. * 'notices' -- Array of plain text notices to display below the input field. * Only used by OOUI form fields. * '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 HTMLFormField::filter() * 'validation-callback' -- a function name to give you the chance * to impose extra validation on the field input. The signature should be * as documented in {@see HTMLFormField::$mValidationCallback}. * @see HTMLFormField::validate() * 'name' -- By default, the 'name' attribute of the input field * is "wp{$fieldname}". If you want a different name * (eg one without the "wp" prefix), specify it here and * it will be used without modification. * 'hide-if' -- expression given as an array stating when the field * should be hidden. The first array value has to be the * expression's logic operator. Supported expressions: * 'NOT' * [ 'NOT', array $expression ] * To hide a field if a given expression is not true. * '===' * [ '===', string $fieldName, string $value ] * To hide a field if another field identified by * $field has the value $value. * '!==' * [ '!==', string $fieldName, string $value ] * Same as [ 'NOT', [ '===', $fieldName, $value ] * 'OR', 'AND', 'NOR', 'NAND' * [ 'XXX', array $expression1, ..., array $expressionN ] * To hide a field if one or more (OR), all (AND), * neither (NOR) or not all (NAND) given expressions * are evaluated as true. * The expressions will be given to a JavaScript frontend * module which will continually update the field's * visibility. * 'disable-if' -- expression given as an array stating when the field * should be disabled. See 'hide-if' for supported expressions. * The 'hide-if' logic would also disable fields, you don't need * to set this attribute with the same condition manually. * You can pass both 'disabled' and this attribute to omit extra * check, but this would function only for not 'disabled' fields. * 'section' -- A string name for the section of the form to which the field * belongs. Subsections may be added using the separator '/', e.g.: * 'section' => 'section1/subsection1' * More levels may be added, e.g.: * 'section' => 'section1/subsection2/subsubsection1' * The message key for a section or subsection header is built from * its name and the form's message prefix (if present). * * Since 1.20, you can chain mutators to ease the form generation: * @par Example: * @code * $form = new HTMLForm( $someFields, $this->getContext() ); * $form->setMethod( 'get' ) * ->setWrapperLegendMsg( 'message-key' ) * ->prepareForm() * ->displayForm( '' ); * @endcode * Note that you will have prepareForm and displayForm at the end. Other * method calls done after that would simply not be part of the form :( * * @stable to extend */ class HTMLForm extends ContextSource { use ProtectedHookAccessorTrait; /** @var string[] A mapping of 'type' inputs onto standard HTMLFormField subclasses */ public static $typeMappings = [ 'api' => HTMLApiField::class, 'text' => HTMLTextField::class, 'textwithbutton' => HTMLTextFieldWithButton::class, 'textarea' => HTMLTextAreaField::class, 'select' => HTMLSelectField::class, 'combobox' => HTMLComboboxField::class, 'radio' => HTMLRadioField::class, 'multiselect' => HTMLMultiSelectField::class, 'limitselect' => HTMLSelectLimitField::class, 'check' => HTMLCheckField::class, 'toggle' => HTMLCheckField::class, 'int' => HTMLIntField::class, 'file' => HTMLFileField::class, 'float' => HTMLFloatField::class, 'info' => HTMLInfoField::class, 'selectorother' => HTMLSelectOrOtherField::class, 'selectandother' => HTMLSelectAndOtherField::class, 'namespaceselect' => HTMLSelectNamespace::class, 'namespaceselectwithbutton' => HTMLSelectNamespaceWithButton::class, 'tagfilter' => HTMLTagFilter::class, 'sizefilter' => HTMLSizeFilterField::class, 'submit' => HTMLSubmitField::class, 'hidden' => HTMLHiddenField::class, 'edittools' => HTMLEditTools::class, 'checkmatrix' => HTMLCheckMatrix::class, 'cloner' => HTMLFormFieldCloner::class, 'autocompleteselect' => HTMLAutoCompleteSelectField::class, 'language' => HTMLSelectLanguageField::class, 'date' => HTMLDateTimeField::class, 'time' => HTMLDateTimeField::class, 'datetime' => HTMLDateTimeField::class, 'expiry' => HTMLExpiryField::class, 'timezone' => HTMLTimezoneField::class, // HTMLTextField will output the correct type="" attribute automagically. // There are about four zillion other HTML5 input types, like range, but // we don't use those at the moment, so no point in adding all of them. 'email' => HTMLTextField::class, 'password' => HTMLTextField::class, 'url' => HTMLTextField::class, 'title' => HTMLTitleTextField::class, 'user' => HTMLUserTextField::class, 'tagmultiselect' => HTMLTagMultiselectField::class, 'usersmultiselect' => HTMLUsersMultiselectField::class, 'titlesmultiselect' => HTMLTitlesMultiselectField::class, 'namespacesmultiselect' => HTMLNamespacesMultiselectField::class, ]; /** @var array */ public $mFieldData; /** @var string */ protected $mMessagePrefix; /** @var HTMLFormField[] */ protected $mFlatFields = []; /** @var array */ protected $mFieldTree = []; /** @var bool */ protected $mShowSubmit = true; /** @var string[] */ protected $mSubmitFlags = [ 'primary', 'progressive' ]; /** @var bool */ protected $mShowCancel = false; /** @var LinkTarget|string|null */ protected $mCancelTarget; /** @var callable|null */ protected $mSubmitCallback; /** * @var array[] * @phan-var non-empty-array[] */ protected $mValidationErrorMessage; /** @var string */ protected $mPre = ''; /** @var string */ protected $mHeader = ''; /** @var string */ protected $mFooter = ''; /** @var string[] */ protected $mSectionHeaders = []; /** @var string[] */ protected $mSectionFooters = []; /** @var string */ protected $mPost = ''; /** @var string|null */ protected $mId; /** @var string|null */ protected $mName; /** @var string */ protected $mTableId = ''; /** @var string|null */ protected $mSubmitID; /** @var string|null */ protected $mSubmitName; /** @var string|null */ protected $mSubmitText; /** @var string|null */ protected $mSubmitTooltip; /** @var string|null */ protected $mFormIdentifier; /** @var bool */ protected $mSingleForm = false; /** @var Title|null */ protected $mTitle; /** @var string */ protected $mMethod = 'post'; /** @var bool */ protected $mWasSubmitted = false; /** * Form action URL. false means we will use the URL to set Title * @since 1.19 * @var string|false */ protected $mAction = false; /** * Whether the form can be collapsed * @since 1.34 * @var bool */ protected $mCollapsible = false; /** * Whether the form is collapsed by default * @since 1.34 * @var bool */ protected $mCollapsed = false; /** * Form attribute autocomplete. A typical value is "off". null does not set the attribute * @since 1.27 * @var string|null */ protected $mAutocomplete = null; /** @var bool */ protected $mUseMultipart = false; /** * @var array[] * @phan-var array<int,array{0:string,1:array}> */ protected $mHiddenFields = []; /** * @var array[] * @phan-var array<array{name:string,value:string,label-message?:string|array<string|MessageParam>|MessageSpecifier,label?:string,label-raw?:string,id?:string,attribs?:array,flags?:string|string[],framed?:bool}> */ protected $mButtons = []; /** @var string|false */ protected $mWrapperLegend = false; /** @var array */ protected $mWrapperAttributes = []; /** * Salt for the edit token. * @var string|array */ protected $mTokenSalt = ''; /** * Additional information about form sections. Only supported by CodexHTMLForm. * * Array is keyed on section name. Options per section include: * 'description' -- Description text placed below the section label. * 'description-message' -- The same, but a message key. * 'description-message-parse' -- Whether to parse the 'description-message' * 'optional' -- Whether the section should be marked as optional. * * @since 1.42 * @var array[] */ protected $mSections = []; /** * 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. * @var bool */ 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 = [ 'table', 'div', 'raw', 'inline', ]; /** * Available formats in which to display the form * @var array */ protected $availableSubclassDisplayFormats = [ 'vform', 'codex', 'ooui', ]; /** * Whether a hidden title field has been added to the form * @var bool */ private $hiddenTitleAddedToForm = false; /** * Construct a HTMLForm object for given display type. May return a HTMLForm subclass. * * @stable to call * * @param string $displayFormat * @param array $descriptor Array of Field constructs, as described * in the class documentation * @param IContextSource $context Context used to fetch submitted form fields and * generate localisation messages * @param string $messagePrefix A prefix to go in front of default messages * @return HTMLForm */ public static function factory( $displayFormat, $descriptor, IContextSource $context, $messagePrefix = '' ) { switch ( $displayFormat ) { case 'codex': return new CodexHTMLForm( $descriptor, $context, $messagePrefix ); case 'vform': return new VFormHTMLForm( $descriptor, $context, $messagePrefix ); case 'ooui': return new OOUIHTMLForm( $descriptor, $context, $messagePrefix ); default: $form = new self( $descriptor, $context, $messagePrefix ); $form->setDisplayFormat( $displayFormat ); return $form; } } /** * Build a new HTMLForm from an array of field attributes * * @stable to call * * @param array $descriptor Array of Field constructs, as described * in the class documentation * @param IContextSource $context Context used to fetch submitted form fields and * generate localisation messages * @param string $messagePrefix A prefix to go in front of default messages */ public function __construct( $descriptor, IContextSource $context, $messagePrefix = '' ) { $this->setContext( $context ); $this->mMessagePrefix = $messagePrefix; $this->addFields( $descriptor ); } /** * Add fields to the form * * @since 1.34 * * @param array $descriptor Array of Field constructs, as described * in the class documentation * @return HTMLForm */ public function addFields( $descriptor ) { $loadedDescriptor = []; foreach ( $descriptor as $fieldname => $info ) { $section = $info['section'] ?? ''; if ( isset( $info['type'] ) && $info['type'] === 'file' ) { $this->mUseMultipart = true; } $field = static::loadInputFromParameters( $fieldname, $info, $this ); $setSection =& $loadedDescriptor; if ( $section ) { foreach ( explode( '/', $section ) as $newName ) { $setSection[$newName] ??= []; $setSection =& $setSection[$newName]; } } $setSection[$fieldname] = $field; $this->mFlatFields[$fieldname] = $field; } $this->mFieldTree = array_merge_recursive( $this->mFieldTree, $loadedDescriptor ); return $this; } /** * @param string $fieldname * @return bool */ public function hasField( $fieldname ) { return isset( $this->mFlatFields[$fieldname] ); } /** * @param string $fieldname * @return HTMLFormField * @throws DomainException on invalid field name */ public function getField( $fieldname ) { if ( !$this->hasField( $fieldname ) ) { throw new DomainException( __METHOD__ . ': no field named ' . $fieldname ); } return $this->mFlatFields[$fieldname]; } /** * Set format in which to display the form * * @param string $format The name of the format to use, must be one of * $this->availableDisplayFormats * * @since 1.20 * @return HTMLForm $this for chaining calls (since 1.20) */ public function setDisplayFormat( $format ) { if ( in_array( $format, $this->availableSubclassDisplayFormats, true ) || in_array( $this->displayFormat, $this->availableSubclassDisplayFormats, true ) ) { throw new LogicException( 'Cannot change display format after creation, ' . 'use HTMLForm::factory() instead' ); } if ( !in_array( $format, $this->availableDisplayFormats, true ) ) { throw new InvalidArgumentException( 'Display format must be one of ' . print_r( array_merge( $this->availableDisplayFormats, $this->availableSubclassDisplayFormats ), true ) ); } $this->displayFormat = $format; return $this; } /** * Getter for displayFormat * @since 1.20 * @return string */ public function getDisplayFormat() { return $this->displayFormat; } /** * Get the HTMLFormField subclass for this descriptor. * * The descriptor can be passed either 'class' which is the name of * a HTMLFormField subclass, or a shorter 'type' which is an alias. * This makes sure the 'class' is always set, and also is returned by * this function for ease. * * @since 1.23 * * @param string $fieldname Name of the field * @param array &$descriptor Input Descriptor, as described * in the class documentation * * @return string Name of a HTMLFormField subclass */ public static function getClassFromDescriptor( $fieldname, &$descriptor ) { if ( isset( $descriptor['class'] ) ) { $class = $descriptor['class']; } elseif ( isset( $descriptor['type'] ) ) { $class = static::$typeMappings[$descriptor['type']]; $descriptor['class'] = $class; } else { $class = null; } if ( !$class ) { throw new InvalidArgumentException( "Descriptor with no class for $fieldname: " . print_r( $descriptor, true ) ); } return $class; } /** * Initialise a new Object for the field * @stable to override * * @param string $fieldname Name of the field * @param array $descriptor Input Descriptor, as described * in the class documentation * @param HTMLForm|null $parent Parent instance of HTMLForm * * @warning Not passing (or passing null) for $parent is deprecated as of 1.40 * @return HTMLFormField Instance of a subclass of HTMLFormField */ public static function loadInputFromParameters( $fieldname, $descriptor, ?HTMLForm $parent = null ) { $class = static::getClassFromDescriptor( $fieldname, $descriptor ); $descriptor['fieldname'] = $fieldname; if ( $parent ) { $descriptor['parent'] = $parent; } # @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. return new $class( $descriptor ); } /** * Prepare form for submission. * * @warning When doing method chaining, that should be the very last * method call before displayForm(). * * @return HTMLForm $this for chaining calls (since 1.20) */ public function prepareForm() { # Load data from the request. if ( $this->mFormIdentifier === null || $this->getRequest()->getVal( 'wpFormIdentifier' ) === $this->mFormIdentifier || ( $this->mSingleForm && $this->getMethod() === 'get' ) ) { $this->loadFieldData(); } else { $this->mFieldData = []; } return $this; } /** * Try submitting, with edit token check first * @return bool|string|array|Status As documented for HTMLForm::trySubmit */ public function tryAuthorizedSubmit() { $result = false; if ( $this->mFormIdentifier === null ) { $identOkay = true; } else { $identOkay = $this->getRequest()->getVal( 'wpFormIdentifier' ) === $this->mFormIdentifier; } $tokenOkay = false; if ( $this->getMethod() !== 'post' ) { $tokenOkay = true; // no session check needed } elseif ( $this->getRequest()->wasPosted() ) { $editToken = $this->getRequest()->getVal( 'wpEditToken' ); if ( $this->getUser()->isRegistered() || $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. $tokenOkay = $this->getUser()->matchEditToken( $editToken, $this->mTokenSalt ); } else { $tokenOkay = true; } } if ( $tokenOkay && $identOkay ) { $this->mWasSubmitted = true; $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 * @stable to override * @return bool|Status Whether submission was successful. */ public function show() { $this->prepareForm(); $result = $this->tryAuthorizedSubmit(); if ( $result === true || ( $result instanceof Status && $result->isGood() ) ) { return $result; } $this->displayForm( $result ); return false; } /** * Same as self::show with the difference, that the form will be * added to the output, no matter, if the validation was good or not. * @return bool|Status Whether submission was successful. */ public function showAlways() { $this->prepareForm(); $result = $this->tryAuthorizedSubmit(); $this->displayForm( $result ); return $result; } /** * Validate all the fields, and call the submission callback * function if everything is kosher. * @stable to override * @return bool|string|array|Status * - Bool true or a good Status object indicates success, * - Bool false indicates no submission was attempted, * - Anything else indicates failure. The value may be a fatal Status * object, an HTML string, or an array of arrays (message keys and * params) or strings (message keys) */ public function trySubmit() { $valid = true; $hoistedErrors = Status::newGood(); if ( $this->mValidationErrorMessage ) { foreach ( $this->mValidationErrorMessage as $error ) { $hoistedErrors->fatal( ...$error ); } } else { $hoistedErrors->fatal( 'htmlform-invalid-input' ); } $this->mWasSubmitted = true; # Check for cancelled submission foreach ( $this->mFlatFields as $fieldname => $field ) { if ( !array_key_exists( $fieldname, $this->mFieldData ) ) { continue; } if ( $field->cancelSubmit( $this->mFieldData[$fieldname], $this->mFieldData ) ) { $this->mWasSubmitted = false; return false; } } # Check for validation $hasNonDefault = false; foreach ( $this->mFlatFields as $fieldname => $field ) { if ( !array_key_exists( $fieldname, $this->mFieldData ) ) { continue; } $hasNonDefault = $hasNonDefault || $this->mFieldData[$fieldname] !== $field->getDefault(); if ( $field->isDisabled( $this->mFieldData ) ) { continue; } $res = $field->validate( $this->mFieldData[$fieldname], $this->mFieldData ); if ( $res !== true ) { $valid = false; if ( $res !== false && !$field->canDisplayErrors() ) { if ( is_string( $res ) ) { $hoistedErrors->fatal( 'rawmessage', $res ); } else { $hoistedErrors->fatal( $res ); } } } } if ( !$valid ) { // Treat as not submitted if got nothing from the user on GET forms. if ( !$hasNonDefault && $this->getMethod() === 'get' && ( $this->mFormIdentifier === null || $this->getRequest()->getCheck( 'wpFormIdentifier' ) ) ) { $this->mWasSubmitted = false; return false; } return $hoistedErrors; } $callback = $this->mSubmitCallback; if ( !is_callable( $callback ) ) { throw new LogicException( 'HTMLForm: no submit callback provided. Use ' . 'setSubmitCallback() to set one.' ); } $data = $this->filterDataForSubmit( $this->mFieldData ); $res = call_user_func( $callback, $data, $this ); if ( $res === false ) { $this->mWasSubmitted = false; } elseif ( $res instanceof StatusValue ) { // DWIM - callbacks are not supposed to return a StatusValue but it's easy to mix up. $res = Status::wrap( $res ); } return $res; } /** * Test whether the form was considered to have been submitted or not, i.e. * whether the last call to tryAuthorizedSubmit or trySubmit returned * non-false. * * This will return false until HTMLForm::tryAuthorizedSubmit or * HTMLForm::trySubmit is called. * * @since 1.23 * @return bool */ public function wasSubmitted() { return $this->mWasSubmitted; } /** * Set a callback to a function to do something with the form * once it's been successfully validated. * * @param callable $cb The function will be passed the output from * HTMLForm::filterDataForSubmit and this HTMLForm object, and must * return as documented for HTMLForm::trySubmit * * @return HTMLForm $this for chaining calls (since 1.20) */ public function setSubmitCallback( $cb ) { $this->mSubmitCallback = $cb; return $this; } /** * Set a message to display on a validation error. * * @param array[] $msg Array of valid inputs to wfMessage() * (so each entry must itself be an array of arguments) * @phan-param non-empty-array[] $msg * * @return HTMLForm $this for chaining calls (since 1.20) */ public 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) * @deprecated since 1.38, use setPreHtml() instead, hard-deprecated since 1.43 */ public function setIntro( $msg ) { wfDeprecated( __METHOD__, '1.38' ); return $this->setPreHtml( $msg ); } /** * Set the introductory message HTML, overwriting any existing message. * * @param string $html Complete HTML of message to display * * @since 1.38 * @return $this for chaining calls */ public function setPreHtml( $html ) { $this->mPre = $html; return $this; } /** * Add HTML to introductory message. * * @param string $html Complete HTML of message to display * * @since 1.38 * @return $this for chaining calls */ public function addPreHtml( $html ) { $this->mPre .= $html; return $this; } /** * Get the introductory message HTML. * * @since 1.38 * @return string */ public function getPreHtml() { return $this->mPre; } /** * Set the introductory message HTML, overwriting any existing message. * * @param string $msg Complete HTML of message to display * * @return HTMLForm $this for chaining calls (since 1.20) * @deprecated since 1.38, use setPreHtml() instead, hard-deprecated since 1.43 */ public function setPreText( $msg ) { wfDeprecated( __METHOD__, '1.38' ); return $this->setPreHtml( $msg ); } /** * Add HTML to introductory message. * * @param string $msg Complete HTML of message to display * * @return HTMLForm $this for chaining calls (since 1.20) * @deprecated since 1.38, use addPreHtml() instead, hard-deprecated since 1.43 */ public function addPreText( $msg ) { wfDeprecated( __METHOD__, '1.38' ); return $this->addPreHtml( $msg ); } /** * Get the introductory message HTML. * * @since 1.32 * @return string * @deprecated since 1.38, use getPreHtml() instead, hard-deprecated since 1.43 */ public function getPreText() { wfDeprecated( __METHOD__, '1.38' ); return $this->getPreHtml(); } /** * Add HTML to the header, inside the form. * * @param string $html Additional HTML to display in header * @param string|null $section The section to add the header to * * @since 1.38 * @return $this for chaining calls */ public function addHeaderHtml( $html, $section = null ) { if ( $section === null ) { $this->mHeader .= $html; } else { $this->mSectionHeaders[$section] ??= ''; $this->mSectionHeaders[$section] .= $html; } return $this; } /** * Set header HTML, inside the form. * * @param string $html Complete HTML of header to display * @param string|null $section The section to add the header to * * @since 1.38 * @return $this for chaining calls */ public function setHeaderHtml( $html, $section = null ) { if ( $section === null ) { $this->mHeader = $html; } else { $this->mSectionHeaders[$section] = $html; } return $this; } /** * Get header HTML. * @stable to override * * @param string|null $section The section to get the header text for * @since 1.38 * @return string HTML */ public function getHeaderHtml( $section = null ) { return $section ? $this->mSectionHeaders[$section] ?? '' : $this->mHeader; } /** * Add HTML to the header, inside the form. * * @param string $msg Additional HTML to display in header * @param string|null $section The section to add the header to * * @return HTMLForm $this for chaining calls (since 1.20) * @deprecated since 1.38, use addHeaderHtml() instead, hard-deprecated since 1.43 */ public function addHeaderText( $msg, $section = null ) { wfDeprecated( __METHOD__, '1.38' ); return $this->addHeaderHtml( $msg, $section ); } /** * Set header text, inside the form. * * @param string $msg Complete HTML of header to display * @param string|null $section The section to add the header to * * @since 1.19 * @return HTMLForm $this for chaining calls (since 1.20) * @deprecated since 1.38, use setHeaderHtml() instead, hard-deprecated since 1.43 */ public function setHeaderText( $msg, $section = null ) { wfDeprecated( __METHOD__, '1.38' ); return $this->setHeaderHtml( $msg, $section ); } /** * Get header text. * @stable to override * * @param string|null $section The section to get the header text for * @since 1.26 * @return string HTML * @deprecated since 1.38, use getHeaderHtml() instead, hard-deprecated since 1.43 */ public function getHeaderText( $section = null ) { wfDeprecated( __METHOD__, '1.38' ); return $this->getHeaderHtml( $section ); } /** * Add footer HTML, inside the form. * * @param string $html Complete text of message to display * @param string|null $section The section to add the footer text to * * @since 1.38 * @return $this for chaining calls */ public function addFooterHtml( $html, $section = null ) { if ( $section === null ) { $this->mFooter .= $html; } else { $this->mSectionFooters[$section] ??= ''; $this->mSectionFooters[$section] .= $html; } return $this; } /** * Set footer HTML, inside the form. * * @param string $html Complete text of message to display * @param string|null $section The section to add the footer text to * * @since 1.38 * @return $this for chaining calls */ public function setFooterHtml( $html, $section = null ) { if ( $section === null ) { $this->mFooter = $html; } else { $this->mSectionFooters[$section] = $html; } return $this; } /** * Get footer HTML. * * @param string|null $section The section to get the footer text for * @since 1.38 * @return string */ public function getFooterHtml( $section = null ) { return $section ? $this->mSectionFooters[$section] ?? '' : $this->mFooter; } /** * Add footer text, inside the form. * * @param string $msg Complete text of message to display * @param string|null $section The section to add the footer text to * * @return HTMLForm $this for chaining calls (since 1.20) * @deprecated since 1.38, use addFooterHtml() instead, hard-deprecated since 1.43 */ public function addFooterText( $msg, $section = null ) { wfDeprecated( __METHOD__, '1.38' ); return $this->addFooterHtml( $msg, $section ); } /** * Set footer text, inside the form. * @since 1.19 * * @param string $msg Complete text of message to display * @param string|null $section The section to add the footer text to * * @return HTMLForm $this for chaining calls (since 1.20) * @deprecated since 1.38, use setFooterHtml() instead, hard-deprecated since 1.43 */ public function setFooterText( $msg, $section = null ) { wfDeprecated( __METHOD__, '1.38' ); return $this->setFooterHtml( $msg, $section ); } /** * Get footer text. * * @param string|null $section The section to get the footer text for * @since 1.26 * @return string * @deprecated since 1.38, use getFooterHtml() instead, hard-deprecated since 1.43 */ public function getFooterText( $section = null ) { wfDeprecated( __METHOD__, '1.38' ); return $this->getFooterHtml( $section ); } /** * Add HTML to the end of the display. * * @param string $html Complete text of message to display * * @since 1.38 * @return $this for chaining calls */ public function addPostHtml( $html ) { $this->mPost .= $html; return $this; } /** * Set HTML at the end of the display. * * @param string $html Complete text of message to display * * @since 1.38 * @return $this for chaining calls */ public function setPostHtml( $html ) { $this->mPost = $html; return $this; } /** * Get HTML at the end of the display. * * @since 1.38 * @return string HTML */ public function getPostHtml() { return $this->mPost; } /** * 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) * @deprecated since 1.38, use addPostHtml() instead, hard-deprecated since 1.43 */ public function addPostText( $msg ) { wfDeprecated( __METHOD__, '1.38' ); return $this->addPostHtml( $msg ); } /** * 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) * @deprecated since 1.38, use setPostHtml() instead, hard-deprecated since 1.43 */ public function setPostText( $msg ) { wfDeprecated( __METHOD__, '1.38' ); return $this->setPostHtml( $msg ); } /** * Set an array of information about sections. * * @since 1.42 * * @param array[] $sections Array of section information, keyed on section name. * * @return HTMLForm $this for chaining calls */ public function setSections( $sections ) { if ( $this->getDisplayFormat() !== 'codex' ) { throw new \InvalidArgumentException( "Non-Codex HTMLForms do not support additional section information." ); } $this->mSections = $sections; return $this; } /** * Add a hidden field to the output * Array values are discarded for security reasons (per WebRequest::getVal) * * @param string $name Field name. This will be used exactly as entered * @param mixed $value Field value * @param array $attribs * * @return HTMLForm $this for chaining calls (since 1.20) */ public function addHiddenField( $name, $value, array $attribs = [] ) { if ( !is_array( $value ) ) { // Per WebRequest::getVal: Array values are discarded for security reasons. $attribs += [ 'name' => $name ]; $this->mHiddenFields[] = [ $value, $attribs ]; } return $this; } /** * Add an array of hidden fields to the output * Array values are discarded for security reasons (per WebRequest::getVal) * * @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 ) { if ( is_array( $value ) ) { // Per WebRequest::getVal: Array values are discarded for security reasons. continue; } $this->mHiddenFields[] = [ $value, [ 'name' => $name ] ]; } return $this; } /** * Add a button to the form * * @since 1.27 takes an array as shown. Earlier versions accepted * 'name', 'value', 'id', and 'attribs' as separate parameters in that * order. * @param array $data Data to define the button: * - name: (string) Button name. * - value: (string) Button value. * - label-message: (string|array<string|array>|MessageSpecifier, optional) Button label * message key to use instead of 'value'. Overrides 'label' and 'label-raw'. * - label: (string, optional) Button label text to use instead of * 'value'. Overrides 'label-raw'. * - label-raw: (string, optional) Button label HTML to use instead of * 'value'. * - id: (string, optional) DOM id for the button. * - attribs: (array, optional) Additional HTML attributes. * - flags: (string|string[], optional) OOUI flags. * - framed: (boolean=true, optional) OOUI framed attribute. * @phpcs:ignore Generic.Files.LineLength * @phan-param array{name:string,value:string,label-message?:string|array<string|MessageParam>|MessageSpecifier,label?:string,label-raw?:string,id?:string,attribs?:array,flags?:string|string[],framed?:bool} $data * @return HTMLForm $this for chaining calls (since 1.20) */ public function addButton( $data ) { if ( !is_array( $data ) ) { $args = func_get_args(); if ( count( $args ) < 2 || count( $args ) > 4 ) { throw new InvalidArgumentException( 'Incorrect number of arguments for deprecated calling style' ); } $data = [ 'name' => $args[0], 'value' => $args[1], 'id' => $args[2] ?? null, 'attribs' => $args[3] ?? null, ]; } else { if ( !isset( $data['name'] ) ) { throw new InvalidArgumentException( 'A name is required' ); } if ( !isset( $data['value'] ) ) { throw new InvalidArgumentException( 'A value is required' ); } } $this->mButtons[] = $data + [ 'id' => null, 'attribs' => null, 'flags' => null, 'framed' => true, ]; return $this; } /** * Set the salt for the edit token. * * Only useful when the method is "post". * * @since 1.24 * @param string|array $salt Salt to use * @return HTMLForm $this For chaining calls */ public function setTokenSalt( $salt ) { $this->mTokenSalt = $salt; 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. * * @warning You should call prepareForm() before calling this function. * Moreover, when doing method chaining this should be the very last method * call just after prepareForm(). * * @stable to override * * @param bool|string|array|Status $submitResult Output from HTMLForm::trySubmit() * * @return void Nothing, should be last call */ public function displayForm( $submitResult ) { $this->getOutput()->addHTML( $this->getHTML( $submitResult ) ); } /** * Get a hidden field for the title of the page if necessary (empty string otherwise) * @return string */ private function getHiddenTitle(): string { if ( $this->hiddenTitleAddedToForm ) { return ''; } $html = ''; if ( $this->getMethod() === 'post' || $this->getAction() === $this->getConfig()->get( MainConfigNames::Script ) ) { $html .= Html::hidden( 'title', $this->getTitle()->getPrefixedText() ) . "\n"; } $this->hiddenTitleAddedToForm = true; return $html; } /** * Returns the raw HTML generated by the form * * @stable to override * * @param bool|string|array|Status $submitResult Output from HTMLForm::trySubmit() * * @return string HTML * @return-taint escaped */ public function getHTML( $submitResult ) { # For good measure (it is the default) $this->getOutput()->getMetadata()->setPreventClickjacking( true ); $this->getOutput()->addModules( 'mediawiki.htmlform' ); $this->getOutput()->addModuleStyles( 'mediawiki.htmlform.styles' ); if ( $this->mCollapsible ) { // Preload jquery.makeCollapsible for mediawiki.htmlform $this->getOutput()->addModules( 'jquery.makeCollapsible' ); } $headerHtml = MWDebug::detectDeprecatedOverride( $this, __CLASS__, 'getHeaderText', '1.38' ) ? $this->getHeaderText() : $this->getHeaderHtml(); $footerHtml = MWDebug::detectDeprecatedOverride( $this, __CLASS__, 'getFooterText', '1.38' ) ? $this->getFooterText() : $this->getFooterHtml(); $html = $this->getErrorsOrWarnings( $submitResult, 'error' ) . $this->getErrorsOrWarnings( $submitResult, 'warning' ) . $headerHtml . $this->getHiddenTitle() . $this->getBody() . $this->getHiddenFields() . $this->getButtons() . $footerHtml; return $this->mPre . $this->wrapForm( $html ) . $this->mPost; } /** * Enable collapsible mode, and set whether the form is collapsed by default. * * @since 1.34 * @param bool $collapsedByDefault Whether the form is collapsed by default (optional). * @return HTMLForm $this for chaining calls */ public function setCollapsibleOptions( $collapsedByDefault = false ) { $this->mCollapsible = true; $this->mCollapsed = $collapsedByDefault; return $this; } /** * Get HTML attributes for the `<form>` tag. * @stable to override * @return array */ protected function getFormAttributes() { # Use multipart/form-data $encType = $this->mUseMultipart ? 'multipart/form-data' : 'application/x-www-form-urlencoded'; # Attributes $attribs = [ 'class' => 'mw-htmlform', 'action' => $this->getAction(), 'method' => $this->getMethod(), 'enctype' => $encType, ]; if ( $this->mId ) { $attribs['id'] = $this->mId; } if ( is_string( $this->mAutocomplete ) ) { $attribs['autocomplete'] = $this->mAutocomplete; } if ( $this->mName ) { $attribs['name'] = $this->mName; } if ( $this->needsJSForHtml5FormValidation() ) { $attribs['novalidate'] = true; } return $attribs; } /** * Wrap the form innards in an actual "<form>" element * * @stable to override * @param string $html HTML contents to wrap. * @return string|\OOUI\Tag Wrapped HTML. */ public function wrapForm( $html ) { # Include a <fieldset> wrapper for style, if requested. if ( $this->mWrapperLegend !== false ) { $legend = is_string( $this->mWrapperLegend ) ? $this->mWrapperLegend : false; $html = Xml::fieldset( $legend, $html, $this->mWrapperAttributes ); } return Html::rawElement( 'form', $this->getFormAttributes(), $html ); } /** * Get the hidden fields that should go inside the form. * @return string HTML. */ public function getHiddenFields() { $html = ''; // add the title as a hidden file if it hasn't been added yet and if it is necessary // added for backward compatibility with the previous version of this public method $html .= $this->getHiddenTitle(); if ( $this->mFormIdentifier !== null ) { $html .= Html::hidden( 'wpFormIdentifier', $this->mFormIdentifier ) . "\n"; } if ( $this->getMethod() === 'post' ) { $html .= Html::hidden( 'wpEditToken', $this->getUser()->getEditToken( $this->mTokenSalt ), [ 'id' => 'wpEditToken' ] ) . "\n"; } foreach ( $this->mHiddenFields as [ $value, $attribs ] ) { $html .= Html::hidden( $attribs['name'], $value, $attribs ) . "\n"; } return $html; } /** * Get the submit and (potentially) reset buttons. * @stable to override * @return string HTML. */ public function getButtons() { $buttons = ''; if ( $this->mShowSubmit ) { $attribs = []; 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'] = [ 'mw-htmlform-submit' ]; $buttons .= Xml::submitButton( $this->getSubmitText(), $attribs ) . "\n"; } if ( $this->mShowCancel ) { $target = $this->getCancelTargetURL(); $buttons .= Html::element( 'a', [ 'href' => $target, ], $this->msg( 'cancel' )->text() ) . "\n"; } foreach ( $this->mButtons as $button ) { $attrs = [ 'type' => 'submit', 'name' => $button['name'], 'value' => $button['value'] ]; if ( isset( $button['label-message'] ) ) { $label = $this->getMessage( $button['label-message'] )->parse(); } elseif ( isset( $button['label'] ) ) { $label = htmlspecialchars( $button['label'] ); } elseif ( isset( $button['label-raw'] ) ) { $label = $button['label-raw']; } else { $label = htmlspecialchars( $button['value'] ); } // @phan-suppress-next-line PhanTypePossiblyInvalidDimOffset Always set in self::addButton if ( $button['attribs'] ) { // @phan-suppress-next-line PhanTypePossiblyInvalidDimOffset Always set in self::addButton $attrs += $button['attribs']; } if ( isset( $button['id'] ) ) { $attrs['id'] = $button['id']; } $buttons .= Html::rawElement( 'button', $attrs, $label ) . "\n"; } if ( !$buttons ) { return ''; } return Html::rawElement( 'span', [ 'class' => 'mw-htmlform-submit-buttons' ], "\n$buttons" ) . "\n"; } /** * Get the whole body of the form. * @stable to override * @return string */ public function getBody() { return $this->displaySection( $this->mFieldTree, $this->mTableId ); } /** * Returns a formatted list of errors or warnings from the given elements. * @stable to override * * @param string|array|Status $elements The set of errors/warnings to process. * @param string $elementsType Should warnings or errors be returned. This is meant * for Status objects, all other valid types are always considered as errors. * @return string */ public function getErrorsOrWarnings( $elements, $elementsType ) { if ( !in_array( $elementsType, [ 'error', 'warning' ], true ) ) { throw new DomainException( $elementsType . ' is not a valid type.' ); } $elementstr = false; if ( $elements instanceof Status ) { [ $errorStatus, $warningStatus ] = $elements->splitByErrorType(); $status = $elementsType === 'error' ? $errorStatus : $warningStatus; if ( $status->isGood() ) { $elementstr = ''; } else { $elementstr = $status ->getMessage() ->setContext( $this ) ->setInterfaceMessageFlag( true ) ->parse(); } } elseif ( $elementsType === 'error' ) { if ( is_array( $elements ) ) { $elementstr = $this->formatErrors( $elements ); } elseif ( $elements && $elements !== true ) { $elementstr = (string)$elements; } } if ( !$elementstr ) { return ''; } elseif ( $elementsType === 'error' ) { return Html::errorBox( $elementstr ); } else { // $elementsType can only be 'warning' return Html::warningBox( $elementstr ); } } /** * Format a stack of error messages into a single HTML string * * @param array $errors Array of message keys/values * * @return string HTML, a "<ul>" list of errors */ public function formatErrors( $errors ) { $errorstr = ''; foreach ( $errors as $error ) { $errorstr .= Html::rawElement( 'li', [], $this->getMessage( $error )->parse() ); } return Html::rawElement( 'ul', [], $errorstr ); } /** * Set the text for the submit button * * @param string $t Plaintext * * @return HTMLForm $this for chaining calls (since 1.20) */ public function setSubmitText( $t ) { $this->mSubmitText = $t; return $this; } /** * Identify that the submit button in the form has a destructive action * @since 1.24 * * @return HTMLForm $this for chaining calls (since 1.28) */ public function setSubmitDestructive() { $this->mSubmitFlags = [ 'destructive', 'primary' ]; return $this; } /** * Set the text for the submit button to a message * @since 1.19 * * @param string|Message $msg Message key or Message object * * @return HTMLForm $this for chaining calls (since 1.20) */ public function setSubmitTextMsg( $msg ) { if ( !$msg instanceof Message ) { $msg = $this->msg( $msg ); } $this->setSubmitText( $msg->text() ); return $this; } /** * Get the text for the submit button, either customised or a default. * @return string */ public function getSubmitText() { return $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 string $t * * @todo FIXME: Integrity of $t is *not* validated * @return HTMLForm $this for chaining calls (since 1.20) */ public function setSubmitID( $t ) { $this->mSubmitID = $t; return $this; } /** * Set an internal identifier for this form. It will be submitted as a hidden form field, allowing * HTMLForm to determine whether the form was submitted (or merely viewed). Setting this serves * two purposes: * * - If you use two or more forms on one page with the same submit target, it allows HTMLForm * to identify which of the forms was submitted, and not attempt to validate the other ones. * - If you use checkbox or multiselect fields inside a form using the GET method, it allows * HTMLForm to distinguish between the initial page view and a form submission with all * checkboxes or select options unchecked. Set the second parameter to true if you are sure * this is the only form on the page, which allows form fields to be prefilled with query * params. * * @since 1.28 * @param string $ident * @param bool $single Only work with GET form, see above. (since 1.41) * @return $this */ public function setFormIdentifier( string $ident, bool $single = false ) { $this->mFormIdentifier = $ident; $this->mSingleForm = $single; 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 */ public function suppressDefaultSubmit( $suppressSubmit = true ) { $this->mShowSubmit = !$suppressSubmit; return $this; } /** * Show a cancel button (or prevent it). The button is not shown by default. * @param bool $show * @return HTMLForm $this for chaining calls * @since 1.27 */ public function showCancel( $show = true ) { $this->mShowCancel = $show; return $this; } /** * Sets the target where the user is redirected to after clicking cancel. * @param LinkTarget|PageReference|string $target Target as an object or an URL * @return HTMLForm $this for chaining calls * @since 1.27 */ public function setCancelTarget( $target ) { if ( $target instanceof PageReference ) { $target = TitleValue::castPageToLinkTarget( $target ); } $this->mCancelTarget = $target; return $this; } /** * @since 1.37 * @return string */ protected function getCancelTargetURL() { if ( is_string( $this->mCancelTarget ) ) { return $this->mCancelTarget; } else { // TODO: use a service to get the local URL for a LinkTarget, see T282283 $target = Title::castFromLinkTarget( $this->mCancelTarget ) ?: Title::newMainPage(); return $target->getLocalURL(); } } /** * 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; } /** * @param string $name 'name' attribute for the form * @return HTMLForm $this for chaining calls */ public function setName( $name ) { $this->mName = $name; return $this; } /** * Prompt the whole form to be wrapped in a "<fieldset>", with * this text as its "<legend>" element. * * @param string|bool $legend If false, no wrapper or legend will be displayed. * If true, a wrapper will be displayed, but no legend. * If a string, a wrapper will be displayed with that string as a legend. * The string will be escaped before being output (this doesn't support HTML). * * @return HTMLForm $this for chaining calls (since 1.20) */ public function setWrapperLegend( $legend ) { $this->mWrapperLegend = $legend; return $this; } /** * For internal use only. Use is discouraged, and should only be used where * support for gadgets/user scripts is warranted. * @param array $attributes * @internal * @return HTMLForm $this for chaining calls */ public function setWrapperAttributes( $attributes ) { $this->mWrapperAttributes = $attributes; return $this; } /** * Prompt the whole form to be wrapped in a "<fieldset>", with * this message as its "<legend>" element. * @since 1.19 * * @param string|Message $msg Message key or Message object * * @return HTMLForm $this for chaining calls (since 1.20) */ public function setWrapperLegendMsg( $msg ) { if ( !$msg instanceof Message ) { $msg = $this->msg( $msg ); } $this->setWrapperLegend( $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 string $p * * @return HTMLForm $this for chaining calls (since 1.20) */ public function setMessagePrefix( $p ) { $this->mMessagePrefix = $p; return $this; } /** * Set the title for form submission * * @param PageReference $t The page the form is on/should be posted to * * @return HTMLForm $this for chaining calls (since 1.20) */ public function setTitle( $t ) { // TODO: make mTitle a PageReference when we have a better way to get URLs, see T282283. $this->mTitle = Title::castFromPageReference( $t ); return $this; } /** * @return Title */ public function getTitle() { return $this->mTitle ?: $this->getContext()->getTitle(); } /** * Set the method used to submit the form * * @param string $method * * @return HTMLForm $this for chaining calls (since 1.20) */ public function setMethod( $method = 'post' ) { $this->mMethod = strtolower( $method ); return $this; } /** * @return string Always lowercase */ public function getMethod() { return $this->mMethod; } /** * Wraps the given $section into a user-visible fieldset. * @stable to override * * @param string $legend Legend text for the fieldset * @param string $section The section content in plain Html * @param array $attributes Additional attributes for the fieldset * @param bool $isRoot Section is at the root of the tree * @return string The fieldset's Html */ protected function wrapFieldSetSection( $legend, $section, $attributes, $isRoot ) { return Xml::fieldset( $legend, $section, $attributes ) . "\n"; } /** * @todo Document * @stable to override * * Throws an exception when called on uninitialized field data, e.g. when * HTMLForm::displayForm was called without calling HTMLForm::prepareForm * first. * * @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 $fieldsetIDPrefix ID prefix for the "<fieldset>" tag of * each subsection, ignored if empty. * @param bool &$hasUserVisibleFields Whether the section had user-visible fields. * * @return string */ public function displaySection( $fields, $sectionName = '', $fieldsetIDPrefix = '', &$hasUserVisibleFields = false ) { if ( $this->mFieldData === null ) { throw new LogicException( 'HTMLForm::displaySection() called on uninitialized field data. ' . 'You probably called displayForm() without calling prepareForm() first.' ); } $html = []; $subsectionHtml = ''; $hasLabel = false; foreach ( $fields as $key => $value ) { if ( $value instanceof HTMLFormField ) { $v = array_key_exists( $key, $this->mFieldData ) ? $this->mFieldData[$key] : $value->getDefault(); $retval = $this->formatField( $value, $v ?? '' ); // check, if the form field should be added to // the output. if ( $value->hasVisibleOutput() ) { $html[] = $retval; $labelValue = trim( $value->getLabel() ); if ( $labelValue !== "\u{00A0}" && $labelValue !== ' ' && $labelValue !== '' ) { $hasLabel = true; } $hasUserVisibleFields = true; } } elseif ( is_array( $value ) ) { $subsectionHasVisibleFields = false; $section = $this->displaySection( $value, "mw-htmlform-$key", "$fieldsetIDPrefix$key-", $subsectionHasVisibleFields ); if ( $subsectionHasVisibleFields === true ) { // Display the section with various niceties. $hasUserVisibleFields = true; $legend = $this->getLegend( $key ); $headerHtml = MWDebug::detectDeprecatedOverride( $this, __CLASS__, 'getHeaderText', '1.38' ) ? $this->getHeaderText( $key ) : $this->getHeaderHtml( $key ); $footerHtml = MWDebug::detectDeprecatedOverride( $this, __CLASS__, 'getFooterText', '1.38' ) ? $this->getFooterText( $key ) : $this->getFooterHtml( $key ); $section = $headerHtml . $section . $footerHtml; $attributes = []; if ( $fieldsetIDPrefix ) { $attributes['id'] = Sanitizer::escapeIdForAttribute( "$fieldsetIDPrefix$key" ); } $subsectionHtml .= $this->wrapFieldSetSection( $legend, $section, $attributes, $fields === $this->mFieldTree ); } else { // Just return the inputs, nothing fancy. $subsectionHtml .= $section; } } } $html = $this->formatSection( $html, $sectionName, $hasLabel ); if ( $subsectionHtml ) { if ( $this->mSubSectionBeforeFields ) { return $subsectionHtml . "\n" . $html; } else { return $html . "\n" . $subsectionHtml; } } else { return $html; } } /** * Generate the HTML for an individual field in the current display format. * @since 1.41 * @stable to override * @param HTMLFormField $field * @param mixed $value * @return string|Stringable HTML */ protected function formatField( HTMLFormField $field, $value ) { $displayFormat = $this->getDisplayFormat(); switch ( $displayFormat ) { case 'table': return $field->getTableRow( $value ); case 'div': return $field->getDiv( $value ); case 'raw': return $field->getRaw( $value ); case 'inline': return $field->getInline( $value ); default: throw new LogicException( 'Not implemented' ); } } /** * Put a form section together from the individual fields' HTML, merging it and wrapping. * @stable to override * @param array $fieldsHtml Array of outputs from formatField() * @param string $sectionName * @param bool $anyFieldHasLabel * @return string HTML */ protected function formatSection( array $fieldsHtml, $sectionName, $anyFieldHasLabel ) { if ( !$fieldsHtml ) { // Do not generate any wrappers for empty sections. Sections may be empty if they only have // subsections, but no fields. A legend will still be added in wrapFieldSetSection(). return ''; } $displayFormat = $this->getDisplayFormat(); $html = implode( '', $fieldsHtml ); if ( $displayFormat === 'raw' ) { return $html; } // Avoid strange spacing when no labels exist $attribs = $anyFieldHasLabel ? [] : [ 'class' => 'mw-htmlform-nolabel' ]; if ( $sectionName ) { $attribs['id'] = Sanitizer::escapeIdForAttribute( $sectionName ); } if ( $displayFormat === 'table' ) { return Html::rawElement( 'table', $attribs, Html::rawElement( 'tbody', [], "\n$html\n" ) ) . "\n"; } elseif ( $displayFormat === 'inline' ) { return Html::rawElement( 'span', $attribs, "\n$html\n" ); } else { return Html::rawElement( 'div', $attribs, "\n$html\n" ); } } /** * @deprecated since 1.39, Use prepareForm() instead. */ public function loadData() { $this->prepareForm(); } /** * Load data of form fields from the request */ protected function loadFieldData() { $fieldData = []; $request = $this->getRequest(); foreach ( $this->mFlatFields as $fieldname => $field ) { if ( $field->skipLoadData( $request ) ) { continue; } if ( $field->mParams['disabled'] ?? false ) { $fieldData[$fieldname] = $field->getDefault(); } else { $fieldData[$fieldname] = $field->loadDataFromRequest( $request ); } } // Reset to default for fields that are supposed to be disabled. // FIXME: Handle dependency chains, fields that a field checks on may need a reset too. foreach ( $fieldData as $name => &$value ) { $field = $this->mFlatFields[$name]; if ( $field->isDisabled( $fieldData ) ) { $value = $field->getDefault(); } } # Filter data. foreach ( $fieldData as $name => &$value ) { $field = $this->mFlatFields[$name]; $value = $field->filter( $value, $fieldData ); } $this->mFieldData = $fieldData; } /** * 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. * @stable to override * * @param array $data * * @return array */ public 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. * @stable to override * * @param string $key * * @return string Plain text (not HTML-escaped) */ public function getLegend( $key ) { return $this->msg( $this->mMessagePrefix ? "{$this->mMessagePrefix}-$key" : $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() { // If an action is already provided, return it if ( $this->mAction !== false ) { return $this->mAction; } $articlePath = $this->getConfig()->get( MainConfigNames::ArticlePath ); // Check whether we are in GET mode and the ArticlePath 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 script path instead // and put title in a hidden field (see getHiddenFields()). if ( str_contains( $articlePath, '?' ) && $this->getMethod() === 'get' ) { return $this->getConfig()->get( MainConfigNames::Script ); } return $this->getTitle()->getLocalURL(); } /** * Set the value for the autocomplete attribute of the form. A typical value is "off". * When set to null (which is the default state), the attribute get not set. * * @since 1.27 * * @param string|null $autocomplete * * @return HTMLForm $this for chaining calls */ public function setAutocomplete( $autocomplete ) { $this->mAutocomplete = $autocomplete; return $this; } /** * Turns a *-message parameter (which could be a MessageSpecifier, or a message name, or a * name + parameters array) into a Message. * @param mixed $value * @return Message */ protected function getMessage( $value ) { return Message::newFromSpecifier( $value )->setContext( $this ); } /** * Whether this form, with its current fields, requires the user agent to have JavaScript enabled * for the client-side HTML5 form validation to work correctly. If this function returns true, a * 'novalidate' attribute will be added on the `<form>` element. It will be removed if the user * agent has JavaScript support, in htmlform.js. * * @return bool * @since 1.29 */ public function needsJSForHtml5FormValidation() { foreach ( $this->mFlatFields as $field ) { if ( $field->needsJSForHtml5FormValidation() ) { return true; } } return false; } } /** @deprecated class alias since 1.42 */ class_alias( HTMLForm::class, 'HTMLForm' );
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