Slide support in content collection

ContentCollectionImplementation.php

<?php
namespace TYPO3\NeosDemoTypo3Org\TypoScript;

use TYPO3\Flow\Annotations as Flow;
use TYPO3\TYPO3CR\Domain\Model\NodeInterface;

/**
 * Extended TypoScript implementation to render ContentCollections. Will render needed
 * metadata for removed nodes and has support for slide.
 */
class ContentCollectionImplementation extends \TYPO3\Neos\TypoScript\ContentCollectionImplementation {

	/**
	 * Internal cache for the nodePath property.
	 *
	 * @var string
	 */
	protected $nodePath;

	/**
	 * Internal cache for the contentCollectionNode property.
	 *
	 * @var NodeInterface
	 */
	protected $contentCollectionNode;

	/**
	 * Internal cache for the slide property.
	 *
	 * @var boolean
	 */
	protected $slide;

	/**
	 * Returns the identifier of the content collection node which shall be rendered
	 *
	 * @return string
	 */
	public function getNodePath() {
		if ($this->nodePath === NULL) {
			$this->nodePath = (string)$this->tsValue('nodePath');
		}

		return $this->nodePath;
	}

	/**
	 * @return boolean
	 */
	public function getSlide() {
		if ($this->slide === NULL) {
			$this->slide = (boolean)$this->tsValue('slide');
		}

		return $this->slide;
	}

	/**
	 * @return NodeInterface
	 */
	public function getContentCollectionNode() {
		if ($this->contentCollectionNode === NULL) {
			$currentContext = $this->tsRuntime->getCurrentContext();
			$this->contentCollectionNode = $currentContext['contentCollectionNode'];
		}

		return $this->contentCollectionNode;
	}

	/**
	 * @return array
	 */
	public function getCollection() {
		$contentCollectionNode = $this->getContentCollectionNode();
		if ($contentCollectionNode === NULL) {
			return array();
		}

		$collection = $contentCollectionNode->getChildNodes();
		if ($contentCollectionNode->getContext()->getWorkspaceName() !== 'live') {
			$collection = array_merge($contentCollectionNode->getChildNodes(), $this->getRemovedChildNodes());
		}

		if (count($collection) === 0 && $this->getSlide() === TRUE) {
			$parentsQuery = new \TYPO3\Eel\FlowQuery\FlowQuery(array($contentCollectionNode));
			$this->contentCollectionNode = $parentsQuery->parents('[instanceof TYPO3.Neos:Document]')->first()->parent()->children($this->getNodePath())->get(0);
			if ($this->contentCollectionNode !== NULL) {
				$collection = $this->getCollection();
			}
		}

		return $collection;
	}

}

Root.ts2

prototype(TYPO3.Neos:ContentCollection).@class = 'TYPO3\\NeosDemoTypo3Org\\TypoScript\\ContentCollectionImplementation'

page.body.content.aside = ContentCollection {
	nodePath = 'aside'
	slide = ${node.context.workspaceName == 'live' ? true : false}
}

I figured out how to do it with the latest refactorings: https://gist.github.com/hhoechtl/c5e5b84261f75a8feac5