MutableRevisionSlots.php

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<?php
namespace MediaWiki\Revision;
 
use MediaWiki\Content\Content;
 
class MutableRevisionSlots extends RevisionSlots {
    private $resetCallback;
 
    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 );
    }
 
    public function __construct( array $slots = [], ?callable $resetCallback = null ) {
        // @phan-suppress-next-line PhanTypeInvalidCallableArraySize
        parent::__construct( $slots );
        $this->resetCallback = $resetCallback;
    }
 
    public function setSlot( SlotRecord $slot ) {
        if ( !is_array( $this->slots ) ) {
            $this->getSlots(); // initialize $this->slots
        }
 
        $role = $slot->getRole();
        $this->slots[$role] = $slot;
        $this->triggerResetCallback();
    }
 
    public function inheritSlot( SlotRecord $slot ) {
        $this->setSlot( SlotRecord::newInherited( $slot ) );
    }
 
    public function setContent( $role, Content $content ) {
        $slot = SlotRecord::newUnsaved( $role, $content );
        $this->setSlot( $slot );
    }
 
    public function removeSlot( $role ) {
        if ( !is_array( $this->slots ) ) {
            $this->getSlots();  // initialize $this->slots
        }
 
        unset( $this->slots[$role] );
        $this->triggerResetCallback();
    }
 
    private function triggerResetCallback() {
        if ( $this->resetCallback ) {
            ( $this->resetCallback )( $this );
        }
    }
 
}