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<?php
/**
* Mutable version of RevisionSlots, for constructing a new revision.
*
* 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\Revision;
use MediaWiki\Content\Content;
/**
* Mutable version of RevisionSlots, for constructing a new revision.
*
* @since 1.31
* @since 1.32 Renamed from MediaWiki\Storage\MutableRevisionSlots
*/
class MutableRevisionSlots extends RevisionSlots {
/**
* @var callable|null
*/
private $resetCallback;
/**
* Constructs a MutableRevisionSlots that inherits from the given
* list of slots.
*
* @param SlotRecord[] $slots
* @param callable|null $resetCallback Callback to be triggered whenever slots change.
* Signature: function ( MutableRevisionSlots ): void.
*
* @return MutableRevisionSlots
*/
public static function newFromParentRevisionSlots(
array $slots,
?callable $resetCallback = null
) {
$inherited = [];
foreach ( $slots as $slot ) {
$role = $slot->getRole();
$inherited[$role] = SlotRecord::newInherited( $slot );
}
return new MutableRevisionSlots( $inherited, $resetCallback );
}
/**
* @param SlotRecord[] $slots An array of SlotRecords.
* @param callable|null $resetCallback Callback to be triggered whenever slots change.
* Signature: function ( MutableRevisionSlots ): void.
*/
public function __construct( array $slots = [], ?callable $resetCallback = null ) {
// @phan-suppress-next-line PhanTypeInvalidCallableArraySize
parent::__construct( $slots );
$this->resetCallback = $resetCallback;
}
/**
* Sets the given slot.
* If a slot with the same role is already present, it is replaced.
*/
public function setSlot( SlotRecord $slot ) {
if ( !is_array( $this->slots ) ) {
$this->getSlots(); // initialize $this->slots
}
$role = $slot->getRole();
$this->slots[$role] = $slot;
$this->triggerResetCallback();
}
/**
* Sets the given slot to an inherited version of $slot.
* If a slot with the same role is already present, it is replaced.
*/
public function inheritSlot( SlotRecord $slot ) {
$this->setSlot( SlotRecord::newInherited( $slot ) );
}
/**
* Sets the content for the slot with the given role.
* If a slot with the same role is already present, it is replaced.
*
* @param string $role
* @param Content $content
*/
public function setContent( $role, Content $content ) {
$slot = SlotRecord::newUnsaved( $role, $content );
$this->setSlot( $slot );
}
/**
* Remove the slot for the given role, discontinue the corresponding stream.
*
* @param string $role
*/
public function removeSlot( $role ) {
if ( !is_array( $this->slots ) ) {
$this->getSlots(); // initialize $this->slots
}
unset( $this->slots[$role] );
$this->triggerResetCallback();
}
/**
* Trigger the reset callback supplied to the constructor, if any.
*/
private function triggerResetCallback() {
if ( $this->resetCallback ) {
( $this->resetCallback )( $this );
}
}
}