WordPress/wp-content/themes/twentythirteen/inc/back-compat.php

84 lines
2.3 KiB
PHP

<?php
/**
* Twenty Thirteen back compat functionality
*
* Prevents Twenty Thirteen from running on WordPress versions prior to 3.6,
* since this theme is not meant to be backward compatible and relies on
* many new functions and markup changes introduced in 3.6.
*
* @package WordPress
* @subpackage Twenty_Thirteen
* @since Twenty Thirteen 1.0
*/
/**
* Prevent switching to Twenty Thirteen on old versions of WordPress.
*
* Switches to the default theme.
*
* @since Twenty Thirteen 1.0
*/
function twentythirteen_switch_theme() {
switch_theme( WP_DEFAULT_THEME, WP_DEFAULT_THEME );
unset( $_GET['activated'] );
add_action( 'admin_notices', 'twentythirteen_upgrade_notice' );
}
add_action( 'after_switch_theme', 'twentythirteen_switch_theme' );
/**
* Add message for unsuccessful theme switch.
*
* Prints an update nag after an unsuccessful attempt to switch to
* Twenty Thirteen on WordPress versions prior to 3.6.
*
* @since Twenty Thirteen 1.0
*/
function twentythirteen_upgrade_notice() {
printf(
'<div class="error"><p>%s</p></div>',
sprintf(
/* translators: %s: WordPress version. */
__( 'Twenty Thirteen requires at least WordPress version 3.6. You are running version %s. Please upgrade and try again.', 'twentythirteen' ),
$GLOBALS['wp_version']
)
);
}
/**
* Prevent the Customizer from being loaded on WordPress versions prior to 3.6.
*
* @since Twenty Thirteen 1.0
*/
function twentythirteen_customize() {
wp_die(
sprintf(
/* translators: %s: WordPress version. */
__( 'Twenty Thirteen requires at least WordPress version 3.6. You are running version %s. Please upgrade and try again.', 'twentythirteen' ),
$GLOBALS['wp_version']
),
'',
array(
'back_link' => true,
)
);
}
add_action( 'load-customize.php', 'twentythirteen_customize' );
/**
* Prevent the Theme Preview from being loaded on WordPress versions prior to 3.4.
*
* @since Twenty Thirteen 1.0
*/
function twentythirteen_preview() {
if ( isset( $_GET['preview'] ) ) {
wp_die(
sprintf(
/* translators: %s: WordPress version. */
__( 'Twenty Thirteen requires at least WordPress version 3.6. You are running version %s. Please upgrade and try again.', 'twentythirteen' ),
$GLOBALS['wp_version']
)
);
}
}
add_action( 'template_redirect', 'twentythirteen_preview' );