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Edit File: content-options.php

<?php
/**
 * Jetpack Compatibility File
 * See: https://jetpack.com/
 *
 * @package automattic/jetpack
 */

if ( ! class_exists( '\Automattic\Jetpack\Classic_Theme_Helper\Main' ) ) {

/**
	 * Content Options.
	 *
	 * This feature will only be activated for themes that declare their support.
	 * This can be done by adding code similar to the following during the
	 * 'after_setup_theme' action:
	 *
		add_theme_support( 'jetpack-content-options', array(
			'blog-display'       => 'content', // the default setting of the theme: 'content', 'excerpt' or array( 'content', 'excerpt' ) for themes mixing both display.
			'author-bio'         => true, // display or not the author bio: true or false.
			'author-bio-default' => false, // the default setting of the author bio, if it's being displayed or not: true or false (only required if false).
			'avatar-default'     => true, // display or not the default avatar for the author bio: true or false.
			'masonry'            => '.site-main', // a CSS selector matching the elements that triggers a masonry refresh if the theme is using a masonry layout.
			'post-details'       => array(
				'stylesheet'        => 'themeslug-style', // name of the theme's stylesheet.
				'date'              => '.posted-on', // a CSS selector matching the elements that display the post date.
				'categories'        => '.cat-links', // a CSS selector matching the elements that display the post categories.
				'tags'              => '.tags-links', // a CSS selector matching the elements that display the post tags.
				'author'            => '.byline', // a CSS selector matching the elements that display the post author.
				'comment'           => '.comments-link', // a CSS selector matching the elements that display the comment link.
			),
			'featured-images'    => array(
				'archive'           => true, // enable or not the featured image check for archive pages: true or false.
				'archive-default'   => false, // the default setting of the featured image on archive pages, if it's being displayed or not: true or false (only required if false).
				'post'              => true, // enable or not the featured image check for single posts: true or false.
				'post-default'      => false, // the default setting of the featured image on single posts, if it's being displayed or not: true or false (only required if false).
				'page'              => true, // enable or not the featured image check for single pages: true or false.
				'page-default'      => false, // the default setting of the featured image on single pages, if it's being displayed or not: true or false (only required if false).
				'portfolio'         => true, // enable or not the featured image check for single projects: true or false.
				'portfolio-default' => false, // the default setting of the featured image on single projects, if it's being displayed or not: true or false (only required if false).
				'fallback'          => true, // enable or not the featured image fallback: true or false.
				'fallback-default'  => true, // the default setting for featured image fallbacks: true or false (only required if false)
			),
		) );
	 */

if ( ! function_exists( 'jetpack_content_options_init' ) ) {

/**
		 * Activate the Content Options plugin.
		 *
		 * @deprecated 13.9 Moved to Classic Theme Helper package.
		 * @uses current_theme_supports()
		 */
		function jetpack_content_options_init() {
			_deprecated_function( __FUNCTION__, 'jetpack-13.9' );
			// If the theme doesn't support 'jetpack-content-options', don't continue.
			if ( ! current_theme_supports( 'jetpack-content-options' ) ) {
				return;
			}

// Load the Customizer options.
			require __DIR__ . '/content-options/customizer.php';

// Load Blog Display function.
			require __DIR__ . '/content-options/blog-display.php';

// Load Author Bio function.
			require __DIR__ . '/content-options/author-bio.php';

// Load Post Details function.
			require __DIR__ . '/content-options/post-details.php';

// Load Featured Images function.
			if ( jetpack_featured_images_should_load() ) {
				require __DIR__ . '/content-options/featured-images.php';
			}

// Load Featured Images Fallback function.
			if ( jetpack_featured_images_fallback_should_load() ) {
				require __DIR__ . '/content-options/featured-images-fallback.php';
			}
		}
		add_action( 'init', 'jetpack_content_options_init' );

}

if ( ! function_exists( 'jetpack_featured_images_get_settings' ) ) {

/**
		 * Get featured images settings using the jetpack-content-options theme support.
		 *
		 * @deprecated 13.9 Moved to Classic Theme Helper package.
		 */
		function jetpack_featured_images_get_settings() {
			_deprecated_function( __FUNCTION__, 'jetpack-13.9' );
			$options = get_theme_support( 'jetpack-content-options' );

$featured_images = ( ! empty( $options[0]['featured-images'] ) ) ? $options[0]['featured-images'] : null;

$settings = array(
				'archive'           => ( ! empty( $featured_images['archive'] ) ) ? $featured_images['archive'] : null,
				'post'              => ( ! empty( $featured_images['post'] ) ) ? $featured_images['post'] : null,
				'page'              => ( ! empty( $featured_images['page'] ) ) ? $featured_images['page'] : null,
				'portfolio'         => ( ! empty( $featured_images['portfolio'] ) ) ? $featured_images['portfolio'] : null,
				'archive-default'   => ( isset( $featured_images['archive-default'] ) && false === $featured_images['archive-default'] ) ? '' : 1,
				'post-default'      => ( isset( $featured_images['post-default'] ) && false === $featured_images['post-default'] ) ? '' : 1,
				'page-default'      => ( isset( $featured_images['page-default'] ) && false === $featured_images['page-default'] ) ? '' : 1,
				'portfolio-default' => ( isset( $featured_images['portfolio-default'] ) && false === $featured_images['portfolio-default'] ) ? '' : 1,
				'fallback'          => ( ! empty( $featured_images['fallback'] ) ) ? $featured_images['fallback'] : null,
				'fallback-default'  => ( isset( $featured_images['fallback-default'] ) && false === $featured_images['fallback-default'] ) ? '' : 1,
			);

$settings = array_merge(
				$settings,
				array(
					'archive-option'   => get_option( 'jetpack_content_featured_images_archive', $settings['archive-default'] ),
					'post-option'      => get_option( 'jetpack_content_featured_images_post', $settings['post-default'] ),
					'page-option'      => get_option( 'jetpack_content_featured_images_page', $settings['page-default'] ),
					'portfolio-option' => get_option( 'jetpack_content_featured_images_portfolio', $settings['portfolio-default'] ),
					'fallback-option'  => get_option( 'jetpack_content_featured_images_fallback', $settings['fallback-default'] ),
				)
			);

return $settings;
		}

}

if ( ! function_exists( 'jetpack_featured_images_should_load' ) ) {

/**
		 * Determine if the Jetpack Featured Images should be load.
		 *
		 * @deprecated 13.9 Moved to Classic Theme Helper package.
		 */
		function jetpack_featured_images_should_load() {
			_deprecated_function( __FUNCTION__, 'jetpack-13.9' );
			// If the theme doesn't support post thumbnails, don't continue.
			if ( ! current_theme_supports( 'post-thumbnails' ) ) {
				return false;
			}

$opts = jetpack_featured_images_get_settings();

// If the theme doesn't support archive, post and page or if all the options are ticked and we aren't in the customizer, don't continue.
			if (
			( true !== $opts['archive'] && true !== $opts['post'] && true !== $opts['page'] )
			|| ( 1 === $opts['archive-option'] && 1 === $opts['post-option'] && 1 === $opts['page-option'] && ! is_customize_preview() )
			) {
				return false;
			}

return true;
		}

}

if ( ! function_exists( 'jetpack_featured_images_fallback_should_load' ) ) {

/**
		 * Determine if the Jetpack Featured Images fallback should load.
		 *
		 * @deprecated 13.9 Moved to Classic Theme Helper package.
		 */
		function jetpack_featured_images_fallback_should_load() {
			_deprecated_function( __FUNCTION__, 'jetpack-13.9' );
			// If the theme doesn't support post thumbnails, don't continue.
			if ( ! current_theme_supports( 'post-thumbnails' ) ) {
				return false;
			}