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<?php
/**
* Configuration handling class for SearchEngine.
* Provides added service over plain configuration.
*
* @since 1.27
*/
class SearchEngineConfig {
/**
* Config object from which the settings will be derived.
* @var Config
*/
private $config;
/**
* Current language
* @var Language
*/
private $language;
public function __construct( Config $config, Language $lang ) {
$this->config = $config;
$this->language = $lang;
}
/**
* Retrieve original config.
* @return Config
*/
public function getConfig() {
return $this->config;
}
/**
* Make a list of searchable namespaces and their canonical names.
* @return array Namespace ID => name
*/
public function searchableNamespaces() {
$arr = [];
foreach ( $this->language->getNamespaces() as $ns => $name ) {
if ( $ns >= NS_MAIN ) {
$arr[$ns] = $name;
}
}
Hooks::run( 'SearchableNamespaces', [ &$arr ] );
return $arr;
}
/**
* Extract default namespaces to search from the given user's
* settings, returning a list of index numbers.
*
* @param user $user
* @return int[]
*/
public function userNamespaces( $user ) {
$arr = [];
foreach ( $this->searchableNamespaces() as $ns => $name ) {
if ( $user->getOption( 'searchNs' . $ns ) ) {
$arr[] = $ns;
}
}
return $arr;
}
/**
* An array of namespaces indexes to be searched by default
*
* @return int[] Namespace IDs
*/
public function defaultNamespaces() {
return array_keys( $this->config->get( 'NamespacesToBeSearchedDefault' ), true );
}
/**
* Return the search engines we support. If only $wgSearchType
* is set, it'll be an array of just that one item.
*
* @return array
*/
public function getSearchTypes() {
$alternatives = $this->config->get( 'SearchTypeAlternatives' ) ?: [];
array_unshift( $alternatives, $this->config->get( 'SearchType' ) );
return $alternatives;
}
/**
* Return the search engine configured in $wgSearchType, etc.
*
* @return string|null
*/
public function getSearchType() {
return $this->config->get( 'SearchType' );
}
/**
* Get a list of namespace names useful for showing in tooltips
* and preferences.
*
* @param int[] $namespaces
* @return string[] List of names
*/
public function namespacesAsText( $namespaces ) {
$formatted = array_map( [ $this->language, 'getFormattedNsText' ], $namespaces );
foreach ( $formatted as $key => $ns ) {
if ( empty( $ns ) ) {
$formatted[$key] = wfMessage( 'blanknamespace' )->text();
}
}
return $formatted;
}
}
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