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back-compat.php
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back-compat.php
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<?php /** * Theme back compatibility functionality * * Prevents Sinatra from running on WordPress versions prior to 4.7, * since this theme is not meant to be backward compatible beyond that and * relies on many newer functions and markup changes introduced in 4.7. * * @package Sinatra * @author Sinatra Team <hello@sinatrawp.com> * @since 1.0.0 */ /** * Do not allow direct script access. */ if ( ! defined( 'ABSPATH' ) ) { exit; } /** * Prevent switching to Highend X on old versions of WordPress. * * Switches to the default theme. * * @since 1.0.0 */ function sinatra_switch_theme() { switch_theme( WP_DEFAULT_THEME ); unset( $_GET['activated'] ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended add_action( 'admin_notices', 'sinatra_upgrade_notice' ); } add_action( 'after_switch_theme', 'sinatra_switch_theme' ); /** * Adds a message for unsuccessful theme switch. * * Prints an update nag after an unsuccessful attempt to switch to * Sinatra on WordPress versions prior to 4.7. * * @since 1.0.0 * @global string $wp_version WordPress version. */ function sinatra_upgrade_notice() { /* translators: %s WordPress version */ $message = sprintf( esc_html__( 'Sinatra theme requires at least WordPress version 4.7. You are running version %s. Please upgrade and try again.', 'sinatra' ), $GLOBALS['wp_version'] ); printf( '<div class="error"><p>%s</p></div>', esc_html( $message ) ); } /** * Prevents the Customizer from being loaded on WordPress versions prior to 4.7. * * @since 1.0.0 * @global string $wp_version WordPress version. */ function sinatra_customize_prevent() { /* translators: %s WordPress version */ $message = sprintf( esc_html__( 'Sinatra theme requires at least WordPress version 4.7. You are running version %s. Please upgrade your WordPress and try again.', 'sinatra' ), $GLOBALS['wp_version'] ); wp_die( esc_html( $message ), '', array( 'back_link' => true ) ); } add_action( 'load-customize.php', 'sinatra_customize_prevent' ); /** * Prevents the Theme Preview from being loaded on WordPress versions prior to 4.7. * * @since 1.0.0 * @global string $wp_version WordPress version. */ function sinatra_preview_prevent() { if ( isset( $_GET['preview'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended /* translators: %s WordPress version */ $message = sprintf( esc_html__( 'Sinatra theme requires at least WordPress version 4.7. You are running version %s. Please upgrade and try again.', 'sinatra' ), $GLOBALS['wp_version'] ); wp_die( esc_html( $message ) ); } } add_action( 'template_redirect', 'sinatra_preview_prevent' ); if ( ! function_exists( 'wp_body_open' ) ) { /** * Backward compatibility for wp_body_open hook. * * @since 1.0.0 */ function wp_body_open() { // phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedFunctionFound do_action( 'wp_body_open' ); // phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedHooknameFound } }