JNews || Custom Meta for Video Format Post

/**
 * JNEWS || START CUSTOMIZATION
 *
 * Add video icon to meta for video format
 * We use DOMDocument to safely manipulate the HTML output of the meta, and add a video icon if the post format is video.
 * This way we don't have to override the entire meta rendering function, and we can keep compatibility with future updates of the theme.
 * We hook into the filters for the meta output of the modules, and modify the output if
 * the post format is video.
 * The code will look for the element with class "jeg_post_meta" and append a new div with class "jeg_meta_video" and a video camera icon inside it.
 * You can customize the HTML inside the fragment to change the icon or add more information.
 * Note: This code assumes that the meta output contains an element with class "jeg_post_meta". If the theme changes the structure of the meta output, this code may need to be updated accordingly.
 */

add_filter( 'jnews_module_post_meta_1', 'custom_meta_for_video_format', 10, 3 );
add_filter( 'jnews_module_post_meta_2', 'custom_meta_for_video_format', 10, 3 );
add_filter( 'jnews_module_post_meta_3', 'custom_meta_for_video_format', 10, 3 );

/**
 * Add custom meta for video format
 *
 * @param $output
 * @param $post
 * @param $instance
 *
 * @return string
 */
function custom_meta_for_video_format( $output, $post, $instance ) {
    if ( has_post_format( 'video', $post->ID ) ) {
        libxml_use_internal_errors( true );
        $doc = new DOMDocument();

        // Load as HTML fragment without adding <html>/<body>
        $doc->loadHTML( '<?xml encoding="utf-8" ?>' . $output, LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD );

        $xpath = new DOMXPath( $doc );
        // find first element with class "jeg_post_meta"
        $nodes = $xpath->query( "//*[contains(concat(' ', normalize-space(@class), ' '), ' jeg_post_meta ')]" );

        if ( $nodes->length ) {
            $meta = $nodes->item( 0 );

            // create a fragment for arbitrary HTML (safe insertion)
            $fragment = $doc->createDocumentFragment();
            // change the HTML below to whatever element you want to insert
            $fragment->appendXML( '<div class="jeg_meta_video"><i class="fa fa-video-camera"></i></div>' );

            $meta->appendChild( $fragment );
        }

        // export modified HTML (will return the fragment/document)
        $output = $doc->saveHTML();
        libxml_clear_errors();
    }

    return $output;
}

/**
 * JNEWS || END CUSTOMIZATION
 */