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<?php
/**
* 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\RecentChanges;
use InvalidArgumentException;
use MediaWiki\Html\FormOptions;
use MediaWiki\SpecialPage\ChangesListSpecialPage;
use Wikimedia\Rdbms\IReadableDatabase;
/**
* Represents a hide-based boolean filter (used on ChangesListSpecialPage and descendants)
*
* @since 1.29
* @ingroup RecentChanges
* @author Matthew Flaschen
*/
class ChangesListBooleanFilter extends ChangesListFilter {
/**
* Main unstructured UI i18n key
*
* @var string
*/
protected $showHide;
/**
* Whether there is a feature designed to replace this filter available on the
* structured UI
*
* @var bool
*/
protected $isReplacedInStructuredUi;
/**
* Default
*
* @var bool
*/
protected $defaultValue;
/**
* Callable used to do the actual query modification; see constructor
*
* @var callable
*/
protected $queryCallable;
/**
* Value that defined when this filter is considered active
*
* @var bool
*/
protected $activeValue;
/**
* Create a new filter with the specified configuration.
*
* It infers which UI (it can be either or both) to display the filter on based on
* which messages are provided.
*
* If 'label' is provided, it will be displayed on the structured UI. If
* 'showHide' is provided, it will be displayed on the unstructured UI. Thus,
* 'label', 'description', and 'showHide' are optional depending on which UI
* it's for.
*
* @param array $filterDefinition ChangesListFilter definition
* * $filterDefinition['name'] string Name. Used as URL parameter.
* * $filterDefinition['group'] ChangesListFilterGroup Group. Filter group this
* belongs to.
* * $filterDefinition['label'] string i18n key of label for structured UI.
* * $filterDefinition['description'] string i18n key of description for structured
* UI.
* * $filterDefinition['showHide'] string Main i18n key used for unstructured UI.
* * $filterDefinition['isReplacedInStructuredUi'] bool Whether there is an
* equivalent feature available in the structured UI; this is optional, defaulting
* to true. It does not need to be set if the exact same filter is simply visible
* on both.
* * $filterDefinition['default'] bool Default
* * $filterDefinition['activeValue'] bool This filter is considered active when
* its value is equal to its activeValue. Default is true.
* * $filterDefinition['priority'] int Priority integer. Higher value means higher
* up in the group's filter list.
* * $filterDefinition['queryCallable'] callable Callable accepting parameters, used
* to implement filter's DB query modification. Required, except for legacy
* filters that still use the query hooks directly. Callback parameters:
* * string $specialPageClassName Class name of current special page
* * IContextSource $context Context, for e.g. user
* * IDatabase $dbr Database, for addQuotes, makeList, and similar
* * array &$tables Array of tables; see IDatabase::select $table
* * array &$fields Array of fields; see IDatabase::select $vars
* * array &$conds Array of conditions; see IDatabase::select $conds
* * array &$query_options Array of query options; see IDatabase::select $options
* * array &$join_conds Array of join conditions; see IDatabase::select $join_conds
*/
public function __construct( $filterDefinition ) {
parent::__construct( $filterDefinition );
if ( isset( $filterDefinition['showHide'] ) ) {
$this->showHide = $filterDefinition['showHide'];
}
$this->isReplacedInStructuredUi = $filterDefinition['isReplacedInStructuredUi'] ?? false;
if ( isset( $filterDefinition['default'] ) ) {
$this->setDefault( $filterDefinition['default'] );
} else {
throw new InvalidArgumentException( 'You must set a default' );
}
if ( isset( $filterDefinition['queryCallable'] ) ) {
$this->queryCallable = $filterDefinition['queryCallable'];
}
$this->activeValue = $filterDefinition['activeValue'] ?? true;
}
/**
* Get the default value
*
* @param bool $structuredUI Are we currently showing the structured UI
* @return bool|null Default value
*/
public function getDefault( $structuredUI = false ) {
return $this->isReplacedInStructuredUi && $structuredUI ?
!$this->activeValue :
$this->defaultValue;
}
/**
* Sets default. It must be a boolean.
*
* It will be coerced to boolean.
*
* @param bool $defaultValue
*/
public function setDefault( $defaultValue ) {
$this->defaultValue = (bool)$defaultValue;
}
/**
* @return string Main i18n key for unstructured UI
*/
public function getShowHide() {
return $this->showHide;
}
/**
* @inheritDoc
*/
public function displaysOnUnstructuredUi() {
return (bool)$this->showHide;
}
/**
* @inheritDoc
*/
public function isFeatureAvailableOnStructuredUi() {
return $this->isReplacedInStructuredUi ||
parent::isFeatureAvailableOnStructuredUi();
}
/**
* Modifies the query to include the filter. This is only called if the filter is
* in effect (taking into account the default).
*
* @param IReadableDatabase $dbr Database, for addQuotes, makeList, and similar
* @param ChangesListSpecialPage $specialPage Current special page
* @param array &$tables Array of tables; see IDatabase::select $table
* @param array &$fields Array of fields; see IDatabase::select $vars
* @param array &$conds Array of conditions; see IDatabase::select $conds
* @param array &$query_options Array of query options; see IDatabase::select $options
* @param array &$join_conds Array of join conditions; see IDatabase::select $join_conds
*/
public function modifyQuery( IReadableDatabase $dbr, ChangesListSpecialPage $specialPage,
&$tables, &$fields, &$conds, &$query_options, &$join_conds
) {
if ( $this->queryCallable === null ) {
return;
}
( $this->queryCallable )(
get_class( $specialPage ),
$specialPage->getContext(),
$dbr,
$tables,
$fields,
$conds,
$query_options,
$join_conds
);
}
/**
* @inheritDoc
*/
public function getJsData() {
$output = parent::getJsData();
$output['default'] = $this->defaultValue;
return $output;
}
/**
* @inheritDoc
*/
public function isSelected( FormOptions $opts ) {
return !$opts[ $this->getName() ] &&
array_filter(
$this->getSiblings(),
static function ( ChangesListBooleanFilter $sibling ) use ( $opts ) {
return $opts[ $sibling->getName() ];
}
);
}
/**
* @param FormOptions $opts Query parameters merged with defaults
* @param bool $isStructuredUI Whether the structured UI is currently enabled
* @return bool Whether this filter should be considered active
*/
public function isActive( FormOptions $opts, $isStructuredUI ) {
if ( $this->isReplacedInStructuredUi && $isStructuredUI ) {
return false;
}
return $opts[ $this->getName() ] === $this->activeValue;
}
}
/** @deprecated class alias since 1.44 */
class_alias( ChangesListBooleanFilter::class, 'ChangesListBooleanFilter' );