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<?php
/**
* Text field for selecting a value from a large list of possible values, with
* auto-completion and optionally with a select dropdown for selecting common
* options.
*
* If one of 'options-messages', 'options', or 'options-message' is provided
* and non-empty, the select dropdown will be shown. An 'other' key will be
* appended using message 'htmlform-selectorother-other' if not already
* present.
*
* Besides the parameters recognized by HTMLTextField, the following are
* recognized:
* options-messages - As for HTMLSelectField
* options - As for HTMLSelectField
* options-message - As for HTMLSelectField
* autocomplete - Associative array mapping display text to values.
* autocomplete-messages - Like autocomplete, but keys are message names.
* require-match - Boolean, if true the value must be in the options or the
* autocomplete.
* other-message - Message to use instead of htmlform-selectorother-other for
* the 'other' message.
* other - Raw text to use for the 'other' message
*
*/
class HTMLAutoCompleteSelectField extends HTMLTextField {
protected $autocomplete = array();
function __construct( $params ) {
$params += array(
'require-match' => false,
);
parent::__construct( $params );
if ( array_key_exists( 'autocomplete-messages', $this->mParams ) ) {
foreach ( $this->mParams['autocomplete-messages'] as $key => $value ) {
$key = $this->msg( $key )->plain();
$this->autocomplete[$key] = strval( $value );
}
} elseif ( array_key_exists( 'autocomplete', $this->mParams ) ) {
foreach ( $this->mParams['autocomplete'] as $key => $value ) {
$this->autocomplete[$key] = strval( $value );
}
}
if ( !is_array( $this->autocomplete ) || !$this->autocomplete ) {
throw new MWException( 'HTMLAutoCompleteSelectField called without any autocompletions' );
}
$this->getOptions();
if ( $this->mOptions && !in_array( 'other', $this->mOptions, true ) ) {
if ( isset( $params['other-message'] ) ) {
$msg = wfMessage( $params['other-message'] )->text();
} elseif ( isset( $params['other'] ) ) {
$msg = $params['other'];
} else {
$msg = wfMessage( 'htmlform-selectorother-other' )->text();
}
$this->mOptions[$msg] = 'other';
}
}
function loadDataFromRequest( $request ) {
if ( $request->getCheck( $this->mName ) ) {
$val = $request->getText( $this->mName . '-select', 'other' );
if ( $val === 'other' ) {
$val = $request->getText( $this->mName );
if ( isset( $this->autocomplete[$val] ) ) {
$val = $this->autocomplete[$val];
}
}
return $val;
} else {
return $this->getDefault();
}
}
function validate( $value, $alldata ) {
$p = parent::validate( $value, $alldata );
if ( $p !== true ) {
return $p;
}
$validOptions = HTMLFormField::flattenOptions( $this->getOptions() );
if ( in_array( strval( $value ), $validOptions, true ) ) {
return true;
} elseif ( in_array( strval( $value ), $this->autocomplete, true ) ) {
return true;
} elseif ( $this->mParams['require-match'] ) {
return $this->msg( 'htmlform-select-badoption' )->parse();
}
return true;
}
function getAttributes( array $list ) {
$attribs = array(
'type' => 'text',
'data-autocomplete' => FormatJson::encode( array_keys( $this->autocomplete ) ),
) + parent::getAttributes( $list );
if ( $this->getOptions() ) {
$attribs['data-hide-if'] = FormatJson::encode(
array( '!==', $this->mName . '-select', 'other' )
);
}
return $attribs;
}
function getInputHTML( $value ) {
$oldClass = $this->mClass;
$this->mClass = (array)$this->mClass;
$valInSelect = false;
$ret = '';
if ( $this->getOptions() ) {
if ( $value !== false ) {
$value = strval( $value );
$valInSelect = in_array(
$value, HTMLFormField::flattenOptions( $this->getOptions() ), true
);
}
$selected = $valInSelect ? $value : 'other';
$select = new XmlSelect( $this->mName . '-select', $this->mID . '-select', $selected );
$select->addOptions( $this->getOptions() );
$select->setAttribute( 'class', 'mw-htmlform-select-or-other' );
if ( !empty( $this->mParams['disabled'] ) ) {
$select->setAttribute( 'disabled', 'disabled' );
}
if ( isset( $this->mParams['tabindex'] ) ) {
$select->setAttribute( 'tabindex', $this->mParams['tabindex'] );
}
$ret = $select->getHTML() . "<br />\n";
$this->mClass[] = 'mw-htmlform-hide-if';
}
if ( $valInSelect ) {
$value = '';
} else {
$key = array_search( strval( $value ), $this->autocomplete, true );
if ( $key !== false ) {
$value = $key;
}
}
$this->mClass[] = 'mw-htmlform-autocomplete';
$ret .= parent::getInputHTML( $valInSelect ? '' : $value );
$this->mClass = $oldClass;
return $ret;
}
}
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