<?php
/**
 * Child Theme Library
 *
 * WARNING: This file is a part of the core Child Theme Library.
 * DO NOT edit this file under any circumstances. Please use
 * the functions.php file to make any theme modifications.
 *
 * @package   SEOThemes\ChildThemeLibrary\Functions
 * @link      https://github.com/seothemes/child-theme-library
 * @author    Thuan Bui
 * @copyright Copyright © 2018 Thuan Bui
 * @license   GPL-2.0+
 */

// If this file is called directly, abort.
if ( ! defined( 'ABSPATH' ) ) {

	die;

}

add_action( 'after_setup_theme', 'child_theme_add_layouts' );
/**
 * Add theme layouts.
 *
 * @since  1.0.0
 *
 * @return void
 */
function child_theme_add_layouts() {

	$config = child_theme_get_config( 'layouts' );

	$initial_layouts = array(
		'full-width-content',
		'content-sidebar',
		'sidebar-content',
		'content-sidebar-sidebar',
		'sidebar-sidebar-content',
		'sidebar-content-sidebar',
	);

	$layouts_to_remove = array_diff( $initial_layouts, $config );
	$custom_layouts    = array_diff( $config, $initial_layouts );

	foreach ( $layouts_to_remove as $layout_to_remove ) {

		genesis_unregister_layout( $layout_to_remove );

	}

	foreach ( $custom_layouts as $custom_layout ) {

		genesis_register_layout( $custom_layout, array(
			'label' => ucwords( str_replace( '-', ' ', $custom_layout ) ),
			'img'   => CHILD_THEME_ASSETS . '/images/' . $custom_layout . '.gif',
		) );

	}

}

add_filter( 'genesis_site_layout', 'child_theme_search_page_layout' );
/**
 * Gets a custom page layout for the search results page.
 *
 * @since  1.0.0
 *
 * @param  string $layout Layout to return.
 *
 * @return string
 */
function child_theme_search_page_layout( $layout ) {

	if ( is_search() ) {

		$page = get_page_by_path( 'search' );

		if ( $page ) {

			$field  = genesis_get_custom_field( '_genesis_layout', $page->ID );
			$layout = $field ? $field : genesis_get_option( 'site_layout' );

		}

	}

	return $layout;

}

add_filter( 'genesis_site_layout', 'child_theme_error_404_page_layout' );
/**
 * Gets a custom page layout for the error 404 page.
 *
 * @since  1.0.0
 *
 * @param  string $layout Layout to return.
 *
 * @return string
 */
function child_theme_error_404_page_layout( $layout ) {

	if ( is_404() ) {

		$page = get_page_by_path( 'error-404' );

		if ( $page ) {

			$field  = genesis_get_custom_field( '_genesis_layout', $page->ID );
			$layout = $field ? $field : genesis_get_option( 'site_layout' );

		}

	}

	return $layout;

}

add_action( 'genesis_before', 'child_theme_remove_narrow_sidebars' );
/**
 * Remove sidebars for narrow layout.
 *
 * @since  1.0.0
 *
 * @return void
 */
function child_theme_remove_narrow_sidebars() {

	$site_layout = genesis_site_layout();

	if ( 'center-content' !== $site_layout ) {

		return;

	}

	add_filter( 'genesis_site_layout', '__genesis_return_full_width_content' );

}