MviewState.php

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<?php
namespace Magento\Catalog\Model\Indexer\Category\Product\Plugin;

class MviewState
{
    protected $state;

    protected $changelog;

    protected $viewIds = [
        \Magento\Catalog\Model\Indexer\Category\Product::INDEXER_ID,
        \Magento\Catalog\Model\Indexer\Product\Category::INDEXER_ID,
    ];

    public function __construct(
        \Magento\Framework\Mview\View\StateInterface $state,
        \Magento\Framework\Mview\View\ChangelogInterface $changelog
    ) {
        $this->state = $state;
        $this->changelog = $changelog;
    }

    public function afterSetStatus(\Magento\Framework\Mview\View\StateInterface $state)
    {
        if (in_array($state->getViewId(), $this->viewIds)) {
            $viewId = $state->getViewId() ==
                \Magento\Catalog\Model\Indexer\Category\Product::INDEXER_ID
                ? \Magento\Catalog\Model\Indexer\Product\Category::INDEXER_ID
                : \Magento\Catalog\Model\Indexer\Category\Product::INDEXER_ID;

            $relatedViewState = $this->state->loadByView($viewId);

            // if equals nothing to change
            if ($relatedViewState->getMode() == \Magento\Framework\Mview\View\StateInterface::MODE_DISABLED ||
                $state->getStatus() == $relatedViewState->getStatus()
            ) {
                return $state;
            }

            // suspend
            if ($state->getStatus() == \Magento\Framework\Mview\View\StateInterface::STATUS_SUSPENDED) {
                $relatedViewState->setStatus(\Magento\Framework\Mview\View\StateInterface::STATUS_SUSPENDED);
                $relatedViewState->setVersionId($this->changelog->setViewId($viewId)->getVersion());
                $relatedViewState->save();
            } else {
                if ($relatedViewState->getStatus() == \Magento\Framework\Mview\View\StateInterface::STATUS_SUSPENDED) {
                    $relatedViewState->setStatus(\Magento\Framework\Mview\View\StateInterface::STATUS_IDLE);
                    $relatedViewState->save();
                }
            }
        }

        return $state;
    }
}