Method enableDependencies

/**
 * Update Dependencies state for all active Assets or only for given
 *
 * @param   string        $type   The asset type, script or style
 * @param   WebAssetItem  $asset  The asset instance to which need to enable dependencies
 *
 * @return  self
 *
 * @since  4.0.0
 */
protected function enableDependencies(string $type = null, WebAssetItem $asset = null) : self
{
    if ($type === 'preset') {
        // Preset items already was enabled by usePresetItems()
        return $this;
    }
    if ($asset) {
        // Get all dependencies of given asset recursively
        $allDependencies = $this->getDependenciesForAsset($type, $asset, true);
        foreach ($allDependencies as $depType => $depItems) {
            foreach ($depItems as $depItem) {
                // Set dependency state only when it is inactive, to keep a manually activated Asset in their original state
                if (empty($this->activeAssets[$depType][$depItem->getName()])) {
                    // Add the dependency at the top of the list of active assets
                    $this->activeAssets[$depType] = [$depItem->getName() => static::ASSET_STATE_DEPENDENCY] + $this->activeAssets[$depType];
                }
            }
        }
    } else {
        // Re-Check for dependencies for all active assets
        // Firstly, filter out only active assets
        foreach ($this->activeAssets as $type => $activeAsset) {
            $this->activeAssets[$type] = array_filter($activeAsset, function ($state) {
                return $state === WebAssetManager::ASSET_STATE_ACTIVE;
            });
        }
        // Secondary, check for dependencies of each active asset
        // This need to be separated from previous step because we may have "cross type" dependency
        foreach ($this->activeAssets as $type => $activeAsset) {
            foreach (array_keys($activeAsset) as $name) {
                $asset = $this->registry->get($type, $name);
                $this->enableDependencies($type, $asset);
            }
        }
        $this->dependenciesIsActual = true;
    }
    return $this;
}