72 lines
2.3 KiB
PHP
72 lines
2.3 KiB
PHP
|
<?php
|
||
|
|
/**
|
||
|
|
* Twenty Sixteen back compat functionality
|
||
|
|
*
|
||
|
|
* Prevents Twenty Sixteen from running on WordPress versions prior to 4.4,
|
||
|
|
* since this theme is not meant to be backward compatible beyond that and
|
||
|
|
* relies on many newer functions and markup changes introduced in 4.4.
|
||
|
|
*
|
||
|
|
* @package WordPress
|
||
|
|
* @subpackage Twenty_Sixteen
|
||
|
|
* @since Twenty Sixteen 1.0
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Prevent switching to Twenty Sixteen on old versions of WordPress.
|
||
|
|
*
|
||
|
|
* Switches to the default theme.
|
||
|
|
*
|
||
|
|
* @since Twenty Sixteen 1.0
|
||
|
|
*/
|
||
|
|
function twentysixteen_switch_theme() {
|
||
|
|
switch_theme( WP_DEFAULT_THEME, WP_DEFAULT_THEME );
|
||
|
|
|
||
|
|
unset( $_GET['activated'] );
|
||
|
|
|
||
|
|
add_action( 'admin_notices', 'twentysixteen_upgrade_notice' );
|
||
|
|
}
|
||
|
|
add_action( 'after_switch_theme', 'twentysixteen_switch_theme' );
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Adds a message for unsuccessful theme switch.
|
||
|
|
*
|
||
|
|
* Prints an update nag after an unsuccessful attempt to switch to
|
||
|
|
* Twenty Sixteen on WordPress versions prior to 4.4.
|
||
|
|
*
|
||
|
|
* @since Twenty Sixteen 1.0
|
||
|
|
*
|
||
|
|
* @global string $wp_version WordPress version.
|
||
|
|
*/
|
||
|
|
function twentysixteen_upgrade_notice() {
|
||
|
|
$message = sprintf( __( 'Twenty Sixteen requires at least WordPress version 4.4. You are running version %s. Please upgrade and try again.', 'twentysixteen' ), $GLOBALS['wp_version'] );
|
||
|
|
printf( '<div class="error"><p>%s</p></div>', $message );
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Prevents the Customizer from being loaded on WordPress versions prior to 4.4.
|
||
|
|
*
|
||
|
|
* @since Twenty Sixteen 1.0
|
||
|
|
*
|
||
|
|
* @global string $wp_version WordPress version.
|
||
|
|
*/
|
||
|
|
function twentysixteen_customize() {
|
||
|
|
wp_die( sprintf( __( 'Twenty Sixteen requires at least WordPress version 4.4. You are running version %s. Please upgrade and try again.', 'twentysixteen' ), $GLOBALS['wp_version'] ), '', array(
|
||
|
|
'back_link' => true,
|
||
|
|
) );
|
||
|
|
}
|
||
|
|
add_action( 'load-customize.php', 'twentysixteen_customize' );
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Prevents the Theme Preview from being loaded on WordPress versions prior to 4.4.
|
||
|
|
*
|
||
|
|
* @since Twenty Sixteen 1.0
|
||
|
|
*
|
||
|
|
* @global string $wp_version WordPress version.
|
||
|
|
*/
|
||
|
|
function twentysixteen_preview() {
|
||
|
|
if ( isset( $_GET['preview'] ) ) {
|
||
|
|
wp_die( sprintf( __( 'Twenty Sixteen requires at least WordPress version 4.4. You are running version %s. Please upgrade and try again.', 'twentysixteen' ), $GLOBALS['wp_version'] ) );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
add_action( 'template_redirect', 'twentysixteen_preview' );
|