3 * Object handling generic submission, CSRF protection, layout and
4 * other logic for UI forms. in a reusable manner.
6 * In order to generate the form, the HTMLForm object takes an array
7 * structure detailing the form fields available. Each element of the
8 * array is a basic property-list, including the type of field, the
9 * label it is to be given in the form, callbacks for validation and
10 * 'filtering', and other pertinent information.
12 * Field types are implemented as subclasses of the generic HTMLFormField
13 * object, and typically implement at least getInputHTML, which generates
14 * the HTML for the input field to be placed in the table.
16 * The constructor input is an associative array of $fieldname => $info,
17 * where $info is an Associative Array with any of the following:
19 * 'class' -- the subclass of HTMLFormField that will be used
20 * to create the object. *NOT* the CSS class!
21 * 'type' -- roughly translates into the <select> type attribute.
22 * if 'class' is not specified, this is used as a map
23 * through HTMLForm::$typeMappings to get the class name.
24 * 'default' -- default value when the form is displayed
25 * 'id' -- HTML id attribute
26 * 'cssclass' -- CSS class
27 * 'options' -- varies according to the specific object.
28 * 'label-message' -- message key for a message to use as the label.
29 * can be an array of msg key and then parameters to
31 * 'label' -- alternatively, a raw text message. Overridden by
33 * 'help-message' -- message key for a message to use as a help text.
34 * can be an array of msg key and then parameters to
36 * Overwrites 'help-messages'.
37 * 'help-messages' -- array of message key. As above, each item can
38 * be an array of msg key and then parameters.
39 * Overwrites 'help-message'.
40 * 'required' -- passed through to the object, indicating that it
41 * is a required field.
42 * 'size' -- the length of text fields
43 * 'filter-callback -- a function name to give you the chance to
44 * massage the inputted value before it's processed.
45 * @see HTMLForm::filter()
46 * 'validation-callback' -- a function name to give you the chance
47 * to impose extra validation on the field input.
48 * @see HTMLForm::validate()
49 * 'name' -- By default, the 'name' attribute of the input field
50 * is "wp{$fieldname}". If you want a different name
51 * (eg one without the "wp" prefix), specify it here and
52 * it will be used without modification.
54 * TODO: Document 'section' / 'subsection' stuff
58 # A mapping of 'type' inputs onto standard HTMLFormField subclasses
59 static $typeMappings = array(
60 'text' => 'HTMLTextField',
61 'textarea' => 'HTMLTextAreaField',
62 'select' => 'HTMLSelectField',
63 'radio' => 'HTMLRadioField',
64 'multiselect' => 'HTMLMultiSelectField',
65 'check' => 'HTMLCheckField',
66 'toggle' => 'HTMLCheckField',
67 'int' => 'HTMLIntField',
68 'float' => 'HTMLFloatField',
69 'info' => 'HTMLInfoField',
70 'selectorother' => 'HTMLSelectOrOtherField',
71 'selectandother' => 'HTMLSelectAndOtherField',
72 'submit' => 'HTMLSubmitField',
73 'hidden' => 'HTMLHiddenField',
74 'edittools' => 'HTMLEditTools',
76 # HTMLTextField will output the correct type="" attribute automagically.
77 # There are about four zillion other HTML5 input types, like url, but
78 # we don't use those at the moment, so no point in adding all of them.
79 'email' => 'HTMLTextField',
80 'password' => 'HTMLTextField',
83 protected $mMessagePrefix;
84 protected $mFlatFields;
85 protected $mFieldTree;
86 protected $mShowReset = false;
89 protected $mSubmitCallback;
90 protected $mValidationErrorMessage;
93 protected $mHeader = '';
94 protected $mFooter = '';
95 protected $mSectionHeaders = array();
96 protected $mSectionFooters = array();
97 protected $mPost = '';
100 protected $mSubmitID;
101 protected $mSubmitName;
102 protected $mSubmitText;
103 protected $mSubmitTooltip;
105 protected $mContext; // <! RequestContext
107 protected $mMethod = 'post';
109 protected $mUseMultipart = false;
110 protected $mHiddenFields = array();
111 protected $mButtons = array();
113 protected $mWrapperLegend = false;
116 * Build a new HTMLForm from an array of field attributes
117 * @param $descriptor Array of Field constructs, as described above
118 * @param $context RequestContext available since 1.18, will become compulsory in 1.19.
119 * Obviates the need to call $form->setTitle()
120 * @param $messagePrefix String a prefix to go in front of default messages
122 public function __construct( $descriptor, /*RequestContext*/ $context = null, $messagePrefix = '' ) {
123 if( $context instanceof RequestContext
){
124 $this->mContext
= $context;
125 $this->mTitle
= false; // We don't need them to set a title
126 $this->mMessagePrefix
= $messagePrefix;
129 if( is_string( $context ) && $messagePrefix === '' ){
130 // it's actually $messagePrefix
131 $this->mMessagePrefix
= $context;
135 // Expand out into a tree.
136 $loadedDescriptor = array();
137 $this->mFlatFields
= array();
139 foreach ( $descriptor as $fieldname => $info ) {
140 $section = isset( $info['section'] )
144 if ( isset( $info['type'] ) && $info['type'] == 'file' ) {
145 $this->mUseMultipart
= true;
148 $field = self
::loadInputFromParameters( $fieldname, $info );
149 $field->mParent
= $this;
151 $setSection =& $loadedDescriptor;
153 $sectionParts = explode( '/', $section );
155 while ( count( $sectionParts ) ) {
156 $newName = array_shift( $sectionParts );
158 if ( !isset( $setSection[$newName] ) ) {
159 $setSection[$newName] = array();
162 $setSection =& $setSection[$newName];
166 $setSection[$fieldname] = $field;
167 $this->mFlatFields
[$fieldname] = $field;
170 $this->mFieldTree
= $loadedDescriptor;
174 * Add the HTMLForm-specific JavaScript, if it hasn't been
176 * @deprecated since 1.18 load modules with ResourceLoader instead
178 static function addJS() { }
181 * Initialise a new Object for the field
182 * @param $descriptor input Descriptor, as described above
183 * @return HTMLFormField subclass
185 static function loadInputFromParameters( $fieldname, $descriptor ) {
186 if ( isset( $descriptor['class'] ) ) {
187 $class = $descriptor['class'];
188 } elseif ( isset( $descriptor['type'] ) ) {
189 $class = self
::$typeMappings[$descriptor['type']];
190 $descriptor['class'] = $class;
196 throw new MWException( "Descriptor with no class: " . print_r( $descriptor, true ) );
199 $descriptor['fieldname'] = $fieldname;
201 $obj = new $class( $descriptor );
207 * Prepare form for submission
209 function prepareForm() {
210 # Check if we have the info we need
211 if ( !$this->mTitle
instanceof Title
&& $this->mTitle
!== false ) {
212 throw new MWException( "You must call setTitle() on an HTMLForm" );
215 # Load data from the request.
220 * Try submitting, with edit token check first
221 * @return Status|boolean
223 function tryAuthorizedSubmit() {
224 $editToken = $this->getRequest()->getVal( 'wpEditToken' );
227 if ( $this->getMethod() != 'post' ||
$this->getUser()->matchEditToken( $editToken ) ) {
228 $result = $this->trySubmit();
234 * The here's-one-I-made-earlier option: do the submission if
235 * posted, or display the form with or without funky valiation
237 * @return Bool or Status whether submission was successful.
240 $this->prepareForm();
242 $result = $this->tryAuthorizedSubmit();
243 if ( $result === true ||
( $result instanceof Status
&& $result->isGood() ) ){
247 $this->displayForm( $result );
252 * Validate all the fields, and call the submision callback
253 * function if everything is kosher.
254 * @return Mixed Bool true == Successful submission, Bool false
255 * == No submission attempted, anything else == Error to
258 function trySubmit() {
259 # Check for validation
260 foreach ( $this->mFlatFields
as $fieldname => $field ) {
261 if ( !empty( $field->mParams
['nodata'] ) ) {
264 if ( $field->validate(
265 $this->mFieldData
[$fieldname],
269 return isset( $this->mValidationErrorMessage
)
270 ?
$this->mValidationErrorMessage
271 : array( 'htmlform-invalid-input' );
275 $callback = $this->mSubmitCallback
;
277 $data = $this->filterDataForSubmit( $this->mFieldData
);
279 $res = call_user_func( $callback, $data );
285 * Set a callback to a function to do something with the form
286 * once it's been successfully validated.
287 * @param $cb String function name. The function will be passed
288 * the output from HTMLForm::filterDataForSubmit, and must
289 * return Bool true on success, Bool false if no submission
290 * was attempted, or String HTML output to display on error.
292 function setSubmitCallback( $cb ) {
293 $this->mSubmitCallback
= $cb;
297 * Set a message to display on a validation error.
298 * @param $msg Mixed String or Array of valid inputs to wfMsgExt()
299 * (so each entry can be either a String or Array)
301 function setValidationErrorMessage( $msg ) {
302 $this->mValidationErrorMessage
= $msg;
306 * Set the introductory message, overwriting any existing message.
307 * @param $msg String complete text of message to display
309 function setIntro( $msg ) { $this->mPre
= $msg; }
312 * Add introductory text.
313 * @param $msg String complete text of message to display
315 function addPreText( $msg ) { $this->mPre
.= $msg; }
318 * Add header text, inside the form.
319 * @param $msg String complete text of message to display
320 * @param $section The section to add the header to
322 function addHeaderText( $msg, $section = null ) {
323 if ( is_null( $section ) ) {
324 $this->mHeader
.= $msg;
326 if ( !isset( $this->mSectionHeaders
[$section] ) ) {
327 $this->mSectionHeaders
[$section] = '';
329 $this->mSectionHeaders
[$section] .= $msg;
334 * Add footer text, inside the form.
335 * @param $msg String complete text of message to display
336 * @param $section string The section to add the footer text to
338 function addFooterText( $msg, $section = null ) {
339 if ( is_null( $section ) ) {
340 $this->mFooter
.= $msg;
342 if ( !isset( $this->mSectionFooters
[$section] ) ) {
343 $this->mSectionFooters
[$section] = '';
345 $this->mSectionFooters
[$section] .= $msg;
350 * Add text to the end of the display.
351 * @param $msg String complete text of message to display
353 function addPostText( $msg ) { $this->mPost
.= $msg; }
356 * Add a hidden field to the output
357 * @param $name String field name. This will be used exactly as entered
358 * @param $value String field value
359 * @param $attribs Array
361 public function addHiddenField( $name, $value, $attribs = array() ) {
362 $attribs +
= array( 'name' => $name );
363 $this->mHiddenFields
[] = array( $value, $attribs );
366 public function addButton( $name, $value, $id = null, $attribs = null ) {
367 $this->mButtons
[] = compact( 'name', 'value', 'id', 'attribs' );
371 * Display the form (sending to wgOut), with an appropriate error
372 * message or stack of messages, and any validation errors, etc.
373 * @param $submitResult Mixed output from HTMLForm::trySubmit()
375 function displayForm( $submitResult ) {
376 # For good measure (it is the default)
377 $this->getOutput()->preventClickjacking();
378 $this->getOutput()->addModules( 'mediawiki.htmlform' );
381 . $this->getErrors( $submitResult )
384 . $this->getHiddenFields()
385 . $this->getButtons()
389 $html = $this->wrapForm( $html );
391 $this->getOutput()->addHTML( ''
399 * Wrap the form innards in an actual <form> element
400 * @param $html String HTML contents to wrap.
401 * @return String wrapped HTML.
403 function wrapForm( $html ) {
405 # Include a <fieldset> wrapper for style, if requested.
406 if ( $this->mWrapperLegend
!== false ) {
407 $html = Xml
::fieldset( $this->mWrapperLegend
, $html );
409 # Use multipart/form-data
410 $encType = $this->mUseMultipart
411 ?
'multipart/form-data'
412 : 'application/x-www-form-urlencoded';
415 'action' => $this->getTitle()->getFullURL(),
416 'method' => $this->mMethod
,
417 'class' => 'visualClear',
418 'enctype' => $encType,
420 if ( !empty( $this->mId
) ) {
421 $attribs['id'] = $this->mId
;
424 return Html
::rawElement( 'form', $attribs, $html );
428 * Get the hidden fields that should go inside the form.
429 * @return String HTML.
431 function getHiddenFields() {
433 if( $this->getMethod() == 'post' ){
434 $html .= Html
::hidden( 'wpEditToken', $this->getUser()->editToken(), array( 'id' => 'wpEditToken' ) ) . "\n";
435 $html .= Html
::hidden( 'title', $this->getTitle()->getPrefixedText() ) . "\n";
438 foreach ( $this->mHiddenFields
as $data ) {
439 list( $value, $attribs ) = $data;
440 $html .= Html
::hidden( $attribs['name'], $value, $attribs ) . "\n";
447 * Get the submit and (potentially) reset buttons.
448 * @return String HTML.
450 function getButtons() {
454 if ( isset( $this->mSubmitID
) ) {
455 $attribs['id'] = $this->mSubmitID
;
458 if ( isset( $this->mSubmitName
) ) {
459 $attribs['name'] = $this->mSubmitName
;
462 if ( isset( $this->mSubmitTooltip
) ) {
463 $attribs +
= Linker
::tooltipAndAccesskeyAttribs( $this->mSubmitTooltip
);
466 $attribs['class'] = 'mw-htmlform-submit';
468 $html .= Xml
::submitButton( $this->getSubmitText(), $attribs ) . "\n";
470 if ( $this->mShowReset
) {
471 $html .= Html
::element(
475 'value' => wfMsg( 'htmlform-reset' )
480 foreach ( $this->mButtons
as $button ) {
483 'name' => $button['name'],
484 'value' => $button['value']
487 if ( $button['attribs'] ) {
488 $attrs +
= $button['attribs'];
491 if ( isset( $button['id'] ) ) {
492 $attrs['id'] = $button['id'];
495 $html .= Html
::element( 'input', $attrs );
502 * Get the whole body of the form.
505 return $this->displaySection( $this->mFieldTree
);
509 * Format and display an error message stack.
510 * @param $errors String|Array|Status
513 function getErrors( $errors ) {
514 if ( $errors instanceof Status
) {
515 if ( $errors->isOK() ) {
518 $errorstr = $this->getOutput()->parse( $errors->getWikiText() );
520 } elseif ( is_array( $errors ) ) {
521 $errorstr = $this->formatErrors( $errors );
527 ? Html
::rawElement( 'div', array( 'class' => 'error' ), $errorstr )
532 * Format a stack of error messages into a single HTML string
533 * @param $errors Array of message keys/values
534 * @return String HTML, a <ul> list of errors
536 public static function formatErrors( $errors ) {
539 foreach ( $errors as $error ) {
540 if ( is_array( $error ) ) {
541 $msg = array_shift( $error );
547 $errorstr .= Html
::rawElement(
550 wfMsgExt( $msg, array( 'parseinline' ), $error )
554 $errorstr = Html
::rawElement( 'ul', array(), $errorstr );
560 * Set the text for the submit button
561 * @param $t String plaintext.
563 function setSubmitText( $t ) {
564 $this->mSubmitText
= $t;
568 * Get the text for the submit button, either customised or a default.
569 * @return unknown_type
571 function getSubmitText() {
572 return $this->mSubmitText
574 : wfMsg( 'htmlform-submit' );
577 public function setSubmitName( $name ) {
578 $this->mSubmitName
= $name;
581 public function setSubmitTooltip( $name ) {
582 $this->mSubmitTooltip
= $name;
586 * Set the id for the submit button.
588 * @todo FIXME: Integrity of $t is *not* validated
590 function setSubmitID( $t ) {
591 $this->mSubmitID
= $t;
594 public function setId( $id ) {
598 * Prompt the whole form to be wrapped in a <fieldset>, with
599 * this text as its <legend> element.
600 * @param $legend String HTML to go inside the <legend> element.
603 public function setWrapperLegend( $legend ) { $this->mWrapperLegend
= $legend; }
606 * Set the prefix for various default messages
607 * TODO: currently only used for the <fieldset> legend on forms
608 * with multiple sections; should be used elsewhre?
611 function setMessagePrefix( $p ) {
612 $this->mMessagePrefix
= $p;
616 * Set the title for form submission
617 * @param $t Title of page the form is on/should be posted to
619 function setTitle( $t ) {
627 function getTitle() {
628 return $this->mTitle
=== false
629 ?
$this->getContext()->getTitle()
634 * @return RequestContext
636 public function getContext(){
637 return $this->mContext
instanceof RequestContext
639 : RequestContext
::getMain();
645 public function getOutput(){
646 return $this->getContext()->getOutput();
652 public function getRequest(){
653 return $this->getContext()->getRequest();
659 public function getUser(){
660 return $this->getContext()->getUser();
664 * Set the method used to submit the form
665 * @param $method String
667 public function setMethod( $method='post' ){
668 $this->mMethod
= $method;
671 public function getMethod(){
672 return $this->mMethod
;
679 function displaySection( $fields, $sectionName = '' ) {
681 $subsectionHtml = '';
682 $hasLeftColumn = false;
684 foreach ( $fields as $key => $value ) {
685 if ( is_object( $value ) ) {
686 $v = empty( $value->mParams
['nodata'] )
687 ?
$this->mFieldData
[$key]
688 : $value->getDefault();
689 $tableHtml .= $value->getTableRow( $v );
691 if ( $value->getLabel() != ' ' )
692 $hasLeftColumn = true;
693 } elseif ( is_array( $value ) ) {
694 $section = $this->displaySection( $value, $key );
695 $legend = $this->getLegend( $key );
696 if ( isset( $this->mSectionHeaders
[$key] ) ) {
697 $section = $this->mSectionHeaders
[$key] . $section;
699 if ( isset( $this->mSectionFooters
[$key] ) ) {
700 $section .= $this->mSectionFooters
[$key];
702 $subsectionHtml .= Xml
::fieldset( $legend, $section ) . "\n";
708 if ( !$hasLeftColumn ) { // Avoid strange spacing when no labels exist
709 $classes[] = 'mw-htmlform-nolabel';
713 'class' => implode( ' ', $classes ),
716 if ( $sectionName ) {
717 $attribs['id'] = Sanitizer
::escapeId( "mw-htmlform-$sectionName" );
720 $tableHtml = Html
::rawElement( 'table', $attribs,
721 Html
::rawElement( 'tbody', array(), "\n$tableHtml\n" ) ) . "\n";
723 return $subsectionHtml . "\n" . $tableHtml;
727 * Construct the form fields from the Descriptor array
729 function loadData() {
730 $fieldData = array();
732 foreach ( $this->mFlatFields
as $fieldname => $field ) {
733 if ( !empty( $field->mParams
['nodata'] ) ) {
735 } elseif ( !empty( $field->mParams
['disabled'] ) ) {
736 $fieldData[$fieldname] = $field->getDefault();
738 $fieldData[$fieldname] = $field->loadDataFromRequest( $this->getRequest() );
743 foreach ( $fieldData as $name => &$value ) {
744 $field = $this->mFlatFields
[$name];
745 $value = $field->filter( $value, $this->mFlatFields
);
748 $this->mFieldData
= $fieldData;
752 * Stop a reset button being shown for this form
753 * @param $suppressReset Bool set to false to re-enable the
756 function suppressReset( $suppressReset = true ) {
757 $this->mShowReset
= !$suppressReset;
761 * Overload this if you want to apply special filtration routines
762 * to the form as a whole, after it's submitted but before it's
765 * @return unknown_type
767 function filterDataForSubmit( $data ) {
772 * Get a string to go in the <legend> of a section fieldset. Override this if you
773 * want something more complicated
777 public function getLegend( $key ) {
778 return wfMsg( "{$this->mMessagePrefix}-$key" );
783 * The parent class to generate form fields. Any field type should
784 * be a subclass of this.
786 abstract class HTMLFormField
{
788 protected $mValidationCallback;
789 protected $mFilterCallback;
792 protected $mLabel; # String label. Set on construction
794 protected $mClass = '';
803 * This function must be implemented to return the HTML to generate
804 * the input object itself. It should not implement the surrounding
805 * table cells/rows, or labels/help messages.
806 * @param $value String the value to set the input to; eg a default
807 * text for a text input.
808 * @return String valid HTML.
810 abstract function getInputHTML( $value );
813 * Override this function to add specific validation checks on the
814 * field input. Don't forget to call parent::validate() to ensure
815 * that the user-defined callback mValidationCallback is still run
816 * @param $value String the value the field was submitted with
817 * @param $alldata Array the data collected from the form
818 * @return Mixed Bool true on success, or String error to display.
820 function validate( $value, $alldata ) {
821 if ( isset( $this->mValidationCallback
) ) {
822 return call_user_func( $this->mValidationCallback
, $value, $alldata );
825 if ( isset( $this->mParams
['required'] ) && $value === '' ) {
826 return wfMsgExt( 'htmlform-required', 'parseinline' );
832 function filter( $value, $alldata ) {
833 if ( isset( $this->mFilterCallback
) ) {
834 $value = call_user_func( $this->mFilterCallback
, $value, $alldata );
841 * Should this field have a label, or is there no input element with the
842 * appropriate id for the label to point to?
844 * @return bool True to output a label, false to suppress
846 protected function needsLabel() {
851 * Get the value that this input has been set to from a posted form,
852 * or the input's default value if it has not been set.
853 * @param $request WebRequest
854 * @return String the value
856 function loadDataFromRequest( $request ) {
857 if ( $request->getCheck( $this->mName
) ) {
858 return $request->getText( $this->mName
);
860 return $this->getDefault();
865 * Initialise the object
866 * @param $params array Associative Array. See HTMLForm doc for syntax.
868 function __construct( $params ) {
869 $this->mParams
= $params;
871 # Generate the label from a message, if possible
872 if ( isset( $params['label-message'] ) ) {
873 $msgInfo = $params['label-message'];
875 if ( is_array( $msgInfo ) ) {
876 $msg = array_shift( $msgInfo );
882 $this->mLabel
= wfMsgExt( $msg, 'parseinline', $msgInfo );
883 } elseif ( isset( $params['label'] ) ) {
884 $this->mLabel
= $params['label'];
887 $this->mName
= "wp{$params['fieldname']}";
888 if ( isset( $params['name'] ) ) {
889 $this->mName
= $params['name'];
892 $validName = Sanitizer
::escapeId( $this->mName
);
893 if ( $this->mName
!= $validName && !isset( $params['nodata'] ) ) {
894 throw new MWException( "Invalid name '{$this->mName}' passed to " . __METHOD__
);
897 $this->mID
= "mw-input-{$this->mName}";
899 if ( isset( $params['default'] ) ) {
900 $this->mDefault
= $params['default'];
903 if ( isset( $params['id'] ) ) {
905 $validId = Sanitizer
::escapeId( $id );
907 if ( $id != $validId ) {
908 throw new MWException( "Invalid id '$id' passed to " . __METHOD__
);
914 if ( isset( $params['cssclass'] ) ) {
915 $this->mClass
= $params['cssclass'];
918 if ( isset( $params['validation-callback'] ) ) {
919 $this->mValidationCallback
= $params['validation-callback'];
922 if ( isset( $params['filter-callback'] ) ) {
923 $this->mFilterCallback
= $params['filter-callback'];
928 * Get the complete table row for the input, including help text,
929 * labels, and whatever.
930 * @param $value String the value to set the input to.
931 * @return String complete HTML table row.
933 function getTableRow( $value ) {
934 # Check for invalid data.
936 $errors = $this->validate( $value, $this->mParent
->mFieldData
);
938 $cellAttributes = array();
939 $verticalLabel = false;
941 if ( !empty($this->mParams
['vertical-label']) ) {
942 $cellAttributes['colspan'] = 2;
943 $verticalLabel = true;
946 if ( $errors === true ||
( !$this->mParent
->getRequest()->wasPosted() && ( $this->mParent
->getMethod() == 'post' ) ) ) {
950 $errors = self
::formatErrors( $errors );
951 $errorClass = 'mw-htmlform-invalid-input';
954 $label = $this->getLabelHtml( $cellAttributes );
955 $field = Html
::rawElement(
957 array( 'class' => 'mw-input' ) +
$cellAttributes,
958 $this->getInputHTML( $value ) . "\n$errors"
961 $fieldType = get_class( $this );
963 if ( $verticalLabel ) {
964 $html = Html
::rawElement( 'tr',
965 array( 'class' => 'mw-htmlform-vertical-label' ), $label );
966 $html .= Html
::rawElement( 'tr',
967 array( 'class' => "mw-htmlform-field-$fieldType {$this->mClass} $errorClass" ),
970 $html = Html
::rawElement( 'tr',
971 array( 'class' => "mw-htmlform-field-$fieldType {$this->mClass} $errorClass" ),
977 if ( isset( $this->mParams
['help-message'] ) ) {
978 $msg = wfMessage( $this->mParams
['help-message'] );
979 if ( $msg->exists() ) {
980 $helptext = $msg->parse();
982 } elseif ( isset( $this->mParams
['help-messages'] ) ) {
983 # help-message can be passed a message key (string) or an array containing
984 # a message key and additional parameters. This makes it impossible to pass
985 # an array of message key
986 foreach( $this->mParams
['help-messages'] as $name ) {
987 $msg = wfMessage( $name );
988 if( $msg->exists() ) {
989 $helptext .= $msg->parse(); // append message
992 } elseif ( isset( $this->mParams
['help'] ) ) {
993 $helptext = $this->mParams
['help'];
996 if ( !is_null( $helptext ) ) {
997 $row = Html
::rawElement( 'td', array( 'colspan' => 2, 'class' => 'htmlform-tip' ),
999 $row = Html
::rawElement( 'tr', array(), $row );
1006 function getLabel() {
1007 return $this->mLabel
;
1009 function getLabelHtml( $cellAttributes = array() ) {
1010 # Don't output a for= attribute for labels with no associated input.
1011 # Kind of hacky here, possibly we don't want these to be <label>s at all.
1014 if ( $this->needsLabel() ) {
1015 $for['for'] = $this->mID
;
1018 return Html
::rawElement( 'td', array( 'class' => 'mw-label' ) +
$cellAttributes,
1019 Html
::rawElement( 'label', $for, $this->getLabel() )
1023 function getDefault() {
1024 if ( isset( $this->mDefault
) ) {
1025 return $this->mDefault
;
1032 * Returns the attributes required for the tooltip and accesskey.
1034 * @return array Attributes
1036 public function getTooltipAndAccessKey() {
1037 if ( empty( $this->mParams
['tooltip'] ) ) {
1040 return Linker
::tooltipAndAccesskeyAttribs( $this->mParams
['tooltip'] );
1044 * flatten an array of options to a single array, for instance,
1045 * a set of <options> inside <optgroups>.
1046 * @param $options Associative Array with values either Strings
1048 * @return Array flattened input
1050 public static function flattenOptions( $options ) {
1051 $flatOpts = array();
1053 foreach ( $options as $value ) {
1054 if ( is_array( $value ) ) {
1055 $flatOpts = array_merge( $flatOpts, self
::flattenOptions( $value ) );
1057 $flatOpts[] = $value;
1065 * Formats one or more errors as accepted by field validation-callback.
1066 * @param $errors String|Message|Array of strings or Message instances
1067 * @return String html
1070 protected static function formatErrors( $errors ) {
1071 if ( is_array( $errors ) && count( $errors ) === 1 ) {
1072 $errors = array_shift( $errors );
1075 if ( is_array( $errors ) ) {
1077 foreach ( $errors as $error ) {
1078 if ( $error instanceof Message
) {
1079 $lines[] = Html
::rawElement( 'li', array(), $error->parse() );
1081 $lines[] = Html
::rawElement( 'li', array(), $error );
1084 return Html
::rawElement( 'ul', array( 'class' => 'error' ), implode( "\n", $lines ) );
1086 if ( $errors instanceof Message
) {
1087 $errors = $errors->parse();
1089 return Html
::rawElement( 'span', array( 'class' => 'error' ), $errors );
1094 class HTMLTextField
extends HTMLFormField
{
1095 function getSize() {
1096 return isset( $this->mParams
['size'] )
1097 ?
$this->mParams
['size']
1101 function getInputHTML( $value ) {
1104 'name' => $this->mName
,
1105 'size' => $this->getSize(),
1107 ) +
$this->getTooltipAndAccessKey();
1109 if ( isset( $this->mParams
['maxlength'] ) ) {
1110 $attribs['maxlength'] = $this->mParams
['maxlength'];
1113 if ( !empty( $this->mParams
['disabled'] ) ) {
1114 $attribs['disabled'] = 'disabled';
1117 # TODO: Enforce pattern, step, required, readonly on the server side as
1119 foreach ( array( 'min', 'max', 'pattern', 'title', 'step',
1120 'placeholder' ) as $param ) {
1121 if ( isset( $this->mParams
[$param] ) ) {
1122 $attribs[$param] = $this->mParams
[$param];
1126 foreach ( array( 'required', 'autofocus', 'multiple', 'readonly' ) as $param ) {
1127 if ( isset( $this->mParams
[$param] ) ) {
1128 $attribs[$param] = '';
1132 # Implement tiny differences between some field variants
1133 # here, rather than creating a new class for each one which
1134 # is essentially just a clone of this one.
1135 if ( isset( $this->mParams
['type'] ) ) {
1136 switch ( $this->mParams
['type'] ) {
1138 $attribs['type'] = 'email';
1141 $attribs['type'] = 'number';
1144 $attribs['type'] = 'number';
1145 $attribs['step'] = 'any';
1150 $attribs['type'] = $this->mParams
['type'];
1155 return Html
::element( 'input', $attribs );
1158 class HTMLTextAreaField
extends HTMLFormField
{
1159 function getCols() {
1160 return isset( $this->mParams
['cols'] )
1161 ?
$this->mParams
['cols']
1165 function getRows() {
1166 return isset( $this->mParams
['rows'] )
1167 ?
$this->mParams
['rows']
1171 function getInputHTML( $value ) {
1174 'name' => $this->mName
,
1175 'cols' => $this->getCols(),
1176 'rows' => $this->getRows(),
1177 ) +
$this->getTooltipAndAccessKey();
1180 if ( !empty( $this->mParams
['disabled'] ) ) {
1181 $attribs['disabled'] = 'disabled';
1184 if ( !empty( $this->mParams
['readonly'] ) ) {
1185 $attribs['readonly'] = 'readonly';
1188 foreach ( array( 'required', 'autofocus' ) as $param ) {
1189 if ( isset( $this->mParams
[$param] ) ) {
1190 $attribs[$param] = '';
1194 return Html
::element( 'textarea', $attribs, $value );
1199 * A field that will contain a numeric value
1201 class HTMLFloatField
extends HTMLTextField
{
1202 function getSize() {
1203 return isset( $this->mParams
['size'] )
1204 ?
$this->mParams
['size']
1208 function validate( $value, $alldata ) {
1209 $p = parent
::validate( $value, $alldata );
1211 if ( $p !== true ) {
1215 $value = trim( $value );
1217 # http://dev.w3.org/html5/spec/common-microsyntaxes.html#real-numbers
1218 # with the addition that a leading '+' sign is ok.
1219 if ( !preg_match( '/^((\+|\-)?\d+(\.\d+)?(E(\+|\-)?\d+)?)?$/i', $value ) ) {
1220 return wfMsgExt( 'htmlform-float-invalid', 'parse' );
1223 # The "int" part of these message names is rather confusing.
1224 # They make equal sense for all numbers.
1225 if ( isset( $this->mParams
['min'] ) ) {
1226 $min = $this->mParams
['min'];
1228 if ( $min > $value ) {
1229 return wfMsgExt( 'htmlform-int-toolow', 'parse', array( $min ) );
1233 if ( isset( $this->mParams
['max'] ) ) {
1234 $max = $this->mParams
['max'];
1236 if ( $max < $value ) {
1237 return wfMsgExt( 'htmlform-int-toohigh', 'parse', array( $max ) );
1246 * A field that must contain a number
1248 class HTMLIntField
extends HTMLFloatField
{
1249 function validate( $value, $alldata ) {
1250 $p = parent
::validate( $value, $alldata );
1252 if ( $p !== true ) {
1256 # http://dev.w3.org/html5/spec/common-microsyntaxes.html#signed-integers
1257 # with the addition that a leading '+' sign is ok. Note that leading zeros
1258 # are fine, and will be left in the input, which is useful for things like
1259 # phone numbers when you know that they are integers (the HTML5 type=tel
1260 # input does not require its value to be numeric). If you want a tidier
1261 # value to, eg, save in the DB, clean it up with intval().
1262 if ( !preg_match( '/^((\+|\-)?\d+)?$/', trim( $value ) )
1264 return wfMsgExt( 'htmlform-int-invalid', 'parse' );
1274 class HTMLCheckField
extends HTMLFormField
{
1275 function getInputHTML( $value ) {
1276 if ( !empty( $this->mParams
['invert'] ) ) {
1280 $attr = $this->getTooltipAndAccessKey();
1281 $attr['id'] = $this->mID
;
1283 if ( !empty( $this->mParams
['disabled'] ) ) {
1284 $attr['disabled'] = 'disabled';
1287 return Xml
::check( $this->mName
, $value, $attr ) . ' ' .
1288 Html
::rawElement( 'label', array( 'for' => $this->mID
), $this->mLabel
);
1292 * For a checkbox, the label goes on the right hand side, and is
1293 * added in getInputHTML(), rather than HTMLFormField::getRow()
1295 function getLabel() {
1300 * @param $request WebRequest
1303 function loadDataFromRequest( $request ) {
1305 if ( isset( $this->mParams
['invert'] ) && $this->mParams
['invert'] ) {
1309 // GetCheck won't work like we want for checks.
1310 if ( $request->getCheck( 'wpEditToken' ) ||
$this->mParent
->getMethod() != 'post' ) {
1311 // XOR has the following truth table, which is what we want
1312 // INVERT VALUE | OUTPUT
1313 // true true | false
1314 // false true | true
1315 // false false | false
1316 // true false | true
1317 return $request->getBool( $this->mName
) xor $invert;
1319 return $this->getDefault();
1325 * A select dropdown field. Basically a wrapper for Xmlselect class
1327 class HTMLSelectField
extends HTMLFormField
{
1328 function validate( $value, $alldata ) {
1329 $p = parent
::validate( $value, $alldata );
1331 if ( $p !== true ) {
1335 $validOptions = HTMLFormField
::flattenOptions( $this->mParams
['options'] );
1337 if ( in_array( $value, $validOptions ) )
1340 return wfMsgExt( 'htmlform-select-badoption', 'parseinline' );
1343 function getInputHTML( $value ) {
1344 $select = new XmlSelect( $this->mName
, $this->mID
, strval( $value ) );
1346 # If one of the options' 'name' is int(0), it is automatically selected.
1347 # because PHP sucks and thinks int(0) == 'some string'.
1348 # Working around this by forcing all of them to strings.
1349 foreach( $this->mParams
['options'] as &$opt ){
1350 if( is_int( $opt ) ){
1351 $opt = strval( $opt );
1354 unset( $opt ); # PHP keeps $opt around as a reference, which is a bit scary
1356 if ( !empty( $this->mParams
['disabled'] ) ) {
1357 $select->setAttribute( 'disabled', 'disabled' );
1360 $select->addOptions( $this->mParams
['options'] );
1362 return $select->getHTML();
1367 * Select dropdown field, with an additional "other" textbox.
1369 class HTMLSelectOrOtherField
extends HTMLTextField
{
1370 static $jsAdded = false;
1372 function __construct( $params ) {
1373 if ( !in_array( 'other', $params['options'], true ) ) {
1374 $params['options'][wfMsg( 'htmlform-selectorother-other' )] = 'other';
1377 parent
::__construct( $params );
1380 static function forceToStringRecursive( $array ) {
1381 if ( is_array( $array ) ) {
1382 return array_map( array( __CLASS__
, 'forceToStringRecursive' ), $array );
1384 return strval( $array );
1388 function getInputHTML( $value ) {
1389 $valInSelect = false;
1391 if ( $value !== false ) {
1392 $valInSelect = in_array(
1394 HTMLFormField
::flattenOptions( $this->mParams
['options'] )
1398 $selected = $valInSelect ?
$value : 'other';
1400 $opts = self
::forceToStringRecursive( $this->mParams
['options'] );
1402 $select = new XmlSelect( $this->mName
, $this->mID
, $selected );
1403 $select->addOptions( $opts );
1405 $select->setAttribute( 'class', 'mw-htmlform-select-or-other' );
1407 $tbAttribs = array( 'id' => $this->mID
. '-other', 'size' => $this->getSize() );
1409 if ( !empty( $this->mParams
['disabled'] ) ) {
1410 $select->setAttribute( 'disabled', 'disabled' );
1411 $tbAttribs['disabled'] = 'disabled';
1414 $select = $select->getHTML();
1416 if ( isset( $this->mParams
['maxlength'] ) ) {
1417 $tbAttribs['maxlength'] = $this->mParams
['maxlength'];
1420 $textbox = Html
::input(
1421 $this->mName
. '-other',
1422 $valInSelect ?
'' : $value,
1427 return "$select<br />\n$textbox";
1431 * @param $request WebRequest
1434 function loadDataFromRequest( $request ) {
1435 if ( $request->getCheck( $this->mName
) ) {
1436 $val = $request->getText( $this->mName
);
1438 if ( $val == 'other' ) {
1439 $val = $request->getText( $this->mName
. '-other' );
1444 return $this->getDefault();
1450 * Multi-select field
1452 class HTMLMultiSelectField
extends HTMLFormField
{
1454 public function __construct( $params ){
1455 parent
::__construct( $params );
1456 if( isset( $params['flatlist'] ) ){
1457 $this->mClass
.= ' mw-htmlform-multiselect-flatlist';
1461 function validate( $value, $alldata ) {
1462 $p = parent
::validate( $value, $alldata );
1464 if ( $p !== true ) {
1468 if ( !is_array( $value ) ) {
1472 # If all options are valid, array_intersect of the valid options
1473 # and the provided options will return the provided options.
1474 $validOptions = HTMLFormField
::flattenOptions( $this->mParams
['options'] );
1476 $validValues = array_intersect( $value, $validOptions );
1477 if ( count( $validValues ) == count( $value ) ) {
1480 return wfMsgExt( 'htmlform-select-badoption', 'parseinline' );
1484 function getInputHTML( $value ) {
1485 $html = $this->formatOptions( $this->mParams
['options'], $value );
1490 function formatOptions( $options, $value ) {
1495 if ( !empty( $this->mParams
['disabled'] ) ) {
1496 $attribs['disabled'] = 'disabled';
1499 foreach ( $options as $label => $info ) {
1500 if ( is_array( $info ) ) {
1501 $html .= Html
::rawElement( 'h1', array(), $label ) . "\n";
1502 $html .= $this->formatOptions( $info, $value );
1504 $thisAttribs = array( 'id' => "{$this->mID}-$info", 'value' => $info );
1506 $checkbox = Xml
::check(
1507 $this->mName
. '[]',
1508 in_array( $info, $value, true ),
1509 $attribs +
$thisAttribs );
1510 $checkbox .= ' ' . Html
::rawElement( 'label', array( 'for' => "{$this->mID}-$info" ), $label );
1512 $html .= ' ' . Html
::rawElement( 'div', array( 'class' => 'mw-htmlform-multiselect-item' ), $checkbox );
1520 * @param $request WebRequest
1523 function loadDataFromRequest( $request ) {
1524 if ( $this->mParent
->getMethod() == 'post' ) {
1525 if( $request->wasPosted() ){
1526 # Checkboxes are just not added to the request arrays if they're not checked,
1527 # so it's perfectly possible for there not to be an entry at all
1528 return $request->getArray( $this->mName
, array() );
1530 # That's ok, the user has not yet submitted the form, so show the defaults
1531 return $this->getDefault();
1534 # This is the impossible case: if we look at $_GET and see no data for our
1535 # field, is it because the user has not yet submitted the form, or that they
1536 # have submitted it with all the options unchecked? We will have to assume the
1537 # latter, which basically means that you can't specify 'positive' defaults
1540 return $request->getArray( $this->mName
, array() );
1544 function getDefault() {
1545 if ( isset( $this->mDefault
) ) {
1546 return $this->mDefault
;
1552 protected function needsLabel() {
1558 * Double field with a dropdown list constructed from a system message in the format
1560 * ** <option value>|<option name>
1561 * ** <option value == option name>
1562 * * New Optgroup header
1563 * Plus a text field underneath for an additional reason. The 'value' of the field is
1564 * ""<select>: <extra reason>"", or "<extra reason>" if nothing has been selected in the
1566 * @todo FIXME: If made 'required', only the text field should be compulsory.
1568 class HTMLSelectAndOtherField
extends HTMLSelectField
{
1570 function __construct( $params ) {
1571 if ( array_key_exists( 'other', $params ) ) {
1572 } elseif( array_key_exists( 'other-message', $params ) ){
1573 $params['other'] = wfMessage( $params['other-message'] )->escaped();
1575 $params['other'] = null;
1578 if ( array_key_exists( 'options', $params ) ) {
1579 # Options array already specified
1580 } elseif( array_key_exists( 'options-message', $params ) ){
1581 # Generate options array from a system message
1582 $params['options'] = self
::parseMessage(
1583 wfMessage( $params['options-message'] )->inContentLanguage()->escaped(),
1588 throw new MWException( 'HTMLSelectAndOtherField called without any options' );
1590 $this->mFlatOptions
= self
::flattenOptions( $params['options'] );
1592 parent
::__construct( $params );
1596 * Build a drop-down box from a textual list.
1597 * @param $string String message text
1598 * @param $otherName String name of "other reason" option
1600 * TODO: this is copied from Xml::listDropDown(), deprecate/avoid duplication?
1602 public static function parseMessage( $string, $otherName=null ) {
1603 if( $otherName === null ){
1604 $otherName = wfMessage( 'htmlform-selectorother-other' )->escaped();
1608 $options = array( $otherName => 'other' );
1610 foreach ( explode( "\n", $string ) as $option ) {
1611 $value = trim( $option );
1612 if ( $value == '' ) {
1614 } elseif ( substr( $value, 0, 1) == '*' && substr( $value, 1, 1) != '*' ) {
1615 # A new group is starting...
1616 $value = trim( substr( $value, 1 ) );
1618 } elseif ( substr( $value, 0, 2) == '**' ) {
1620 $opt = trim( substr( $value, 2 ) );
1621 $parts = array_map( 'trim', explode( '|', $opt, 2 ) );
1622 if( count( $parts ) === 1 ){
1623 $parts[1] = $parts[0];
1625 if( $optgroup === false ){
1626 $options[$parts[1]] = $parts[0];
1628 $options[$optgroup][$parts[1]] = $parts[0];
1631 # groupless reason list
1633 $parts = array_map( 'trim', explode( '|', $option, 2 ) );
1634 if( count( $parts ) === 1 ){
1635 $parts[1] = $parts[0];
1637 $options[$parts[1]] = $parts[0];
1644 function getInputHTML( $value ) {
1645 $select = parent
::getInputHTML( $value[1] );
1647 $textAttribs = array(
1648 'id' => $this->mID
. '-other',
1649 'size' => $this->getSize(),
1652 foreach ( array( 'required', 'autofocus', 'multiple', 'disabled' ) as $param ) {
1653 if ( isset( $this->mParams
[$param] ) ) {
1654 $textAttribs[$param] = '';
1658 $textbox = Html
::input(
1659 $this->mName
. '-other',
1665 return "$select<br />\n$textbox";
1669 * @param $request WebRequest
1670 * @return Array( <overall message>, <select value>, <text field value> )
1672 function loadDataFromRequest( $request ) {
1673 if ( $request->getCheck( $this->mName
) ) {
1675 $list = $request->getText( $this->mName
);
1676 $text = $request->getText( $this->mName
. '-other' );
1678 if ( $list == 'other' ) {
1680 } elseif( !in_array( $list, $this->mFlatOptions
) ){
1681 # User has spoofed the select form to give an option which wasn't
1682 # in the original offer. Sulk...
1684 } elseif( $text == '' ) {
1687 $final = $list . wfMsgForContent( 'colon-separator' ) . $text;
1691 $final = $this->getDefault();
1694 return array( $final, $list, $text );
1697 function getSize() {
1698 return isset( $this->mParams
['size'] )
1699 ?
$this->mParams
['size']
1703 function validate( $value, $alldata ) {
1704 # HTMLSelectField forces $value to be one of the options in the select
1705 # field, which is not useful here. But we do want the validation further up
1707 $p = parent
::validate( $value[1], $alldata );
1709 if ( $p !== true ) {
1713 if( isset( $this->mParams
['required'] ) && $value[1] === '' ){
1714 return wfMsgExt( 'htmlform-required', 'parseinline' );
1722 * Radio checkbox fields.
1724 class HTMLRadioField
extends HTMLFormField
{
1725 function validate( $value, $alldata ) {
1726 $p = parent
::validate( $value, $alldata );
1728 if ( $p !== true ) {
1732 if ( !is_string( $value ) && !is_int( $value ) ) {
1736 $validOptions = HTMLFormField
::flattenOptions( $this->mParams
['options'] );
1738 if ( in_array( $value, $validOptions ) ) {
1741 return wfMsgExt( 'htmlform-select-badoption', 'parseinline' );
1746 * This returns a block of all the radio options, in one cell.
1747 * @see includes/HTMLFormField#getInputHTML()
1749 function getInputHTML( $value ) {
1750 $html = $this->formatOptions( $this->mParams
['options'], $value );
1755 function formatOptions( $options, $value ) {
1759 if ( !empty( $this->mParams
['disabled'] ) ) {
1760 $attribs['disabled'] = 'disabled';
1763 # TODO: should this produce an unordered list perhaps?
1764 foreach ( $options as $label => $info ) {
1765 if ( is_array( $info ) ) {
1766 $html .= Html
::rawElement( 'h1', array(), $label ) . "\n";
1767 $html .= $this->formatOptions( $info, $value );
1769 $id = Sanitizer
::escapeId( $this->mID
. "-$info" );
1770 $html .= Xml
::radio(
1774 $attribs +
array( 'id' => $id )
1777 Html
::rawElement( 'label', array( 'for' => $id ), $label );
1779 $html .= "<br />\n";
1786 protected function needsLabel() {
1792 * An information field (text blob), not a proper input.
1794 class HTMLInfoField
extends HTMLFormField
{
1795 function __construct( $info ) {
1796 $info['nodata'] = true;
1798 parent
::__construct( $info );
1801 function getInputHTML( $value ) {
1802 return !empty( $this->mParams
['raw'] ) ?
$value : htmlspecialchars( $value );
1805 function getTableRow( $value ) {
1806 if ( !empty( $this->mParams
['rawrow'] ) ) {
1810 return parent
::getTableRow( $value );
1813 protected function needsLabel() {
1818 class HTMLHiddenField
extends HTMLFormField
{
1819 public function __construct( $params ) {
1820 parent
::__construct( $params );
1822 # Per HTML5 spec, hidden fields cannot be 'required'
1823 # http://dev.w3.org/html5/spec/states-of-the-type-attribute.html#hidden-state
1824 unset( $this->mParams
['required'] );
1827 public function getTableRow( $value ) {
1830 $params['id'] = $this->mID
;
1833 $this->mParent
->addHiddenField(
1842 public function getInputHTML( $value ) { return ''; }
1846 * Add a submit button inline in the form (as opposed to
1847 * HTMLForm::addButton(), which will add it at the end).
1849 class HTMLSubmitField
extends HTMLFormField
{
1851 function __construct( $info ) {
1852 $info['nodata'] = true;
1853 parent
::__construct( $info );
1856 function getInputHTML( $value ) {
1857 return Xml
::submitButton(
1860 'class' => 'mw-htmlform-submit',
1861 'name' => $this->mName
,
1867 protected function needsLabel() {
1872 * Button cannot be invalid
1874 public function validate( $value, $alldata ){
1879 class HTMLEditTools
extends HTMLFormField
{
1880 public function getInputHTML( $value ) {
1884 public function getTableRow( $value ) {
1885 if ( empty( $this->mParams
['message'] ) ) {
1886 $msg = wfMessage( 'edittools' );
1888 $msg = wfMessage( $this->mParams
['message'] );
1889 if ( $msg->isDisabled() ) {
1890 $msg = wfMessage( 'edittools' );
1893 $msg->inContentLanguage();
1896 return '<tr><td></td><td class="mw-input">'
1897 . '<div class="mw-editTools">'
1898 . $msg->parseAsBlock()
1899 . "</div></td></tr>\n";