Method setHeadData

/**
 * Set the HTML document head data
 *
 * @param   array  $data  The document head data in array form
 *
 * @return  HtmlDocument|null instance of $this to allow chaining or null for empty input data
 *
 * @since   1.7.0
 */
public function setHeadData($data)
{
    if (empty($data) || !\is_array($data)) {
        return null;
    }
    $this->title = $data['title'] ?? $this->title;
    $this->description = $data['description'] ?? $this->description;
    $this->link = $data['link'] ?? $this->link;
    $this->_metaTags = $data['metaTags'] ?? $this->_metaTags;
    $this->_links = $data['links'] ?? $this->_links;
    $this->_styleSheets = $data['styleSheets'] ?? $this->_styleSheets;
    $this->_style = $data['style'] ?? $this->_style;
    $this->_scripts = $data['scripts'] ?? $this->_scripts;
    $this->_script = $data['script'] ?? $this->_script;
    $this->_custom = $data['custom'] ?? $this->_custom;
    $this->scriptOptions = isset($data['scriptOptions']) && !empty($data['scriptOptions']) ? $data['scriptOptions'] : $this->scriptOptions;
    // Restore asset manager state
    $wa = $this->getWebAssetManager();
    if (!empty($data['assetManager']['registryFiles'])) {
        $waRegistry = $wa->getRegistry();
        foreach ($data['assetManager']['registryFiles'] as $registryFile) {
            $waRegistry->addRegistryFile($registryFile);
        }
    }
    if (!empty($data['assetManager']['assets'])) {
        foreach ($data['assetManager']['assets'] as $assetType => $assets) {
            foreach ($assets as $asset) {
                $wa->registerAsset($assetType, $asset)->useAsset($assetType, $asset->getName());
            }
        }
    }
    return $this;
}