3
* Twenty Thirteen back compat functionality
5
* Prevents Twenty Thirteen from running on WordPress versions prior to 3.6,
6
* since this theme is not meant to be backward compatible and relies on
7
* many new functions and markup changes introduced in 3.6.
10
* @subpackage Twenty_Thirteen
11
* @since Twenty Thirteen 1.0
15
* Prevent switching to Twenty Thirteen on old versions of WordPress.
17
* Switches to the default theme.
19
* @since Twenty Thirteen 1.0
21
function twentythirteen_switch_theme() {
22
switch_theme( WP_DEFAULT_THEME, WP_DEFAULT_THEME );
23
unset( $_GET['activated'] );
24
add_action( 'admin_notices', 'twentythirteen_upgrade_notice' );
26
add_action( 'after_switch_theme', 'twentythirteen_switch_theme' );
29
* Add message for unsuccessful theme switch.
31
* Prints an update nag after an unsuccessful attempt to switch to
32
* Twenty Thirteen on WordPress versions prior to 3.6.
34
* @since Twenty Thirteen 1.0
36
function twentythirteen_upgrade_notice() {
37
$message = sprintf( __( 'Twenty Thirteen requires at least WordPress version 3.6. You are running version %s. Please upgrade and try again.', 'twentythirteen' ), $GLOBALS['wp_version'] );
38
printf( '<div class="error"><p>%s</p></div>', $message );
42
* Prevent the Theme Customizer from being loaded on WordPress versions prior to 3.6.
44
* @since Twenty Thirteen 1.0
46
function twentythirteen_customize() {
47
wp_die( sprintf( __( 'Twenty Thirteen requires at least WordPress version 3.6. You are running version %s. Please upgrade and try again.', 'twentythirteen' ), $GLOBALS['wp_version'] ), '', array(
51
add_action( 'load-customize.php', 'twentythirteen_customize' );
54
* Prevent the Theme Preview from being loaded on WordPress versions prior to 3.4.
56
* @since Twenty Thirteen 1.0
58
function twentythirteen_preview() {
59
if ( isset( $_GET['preview'] ) ) {
60
wp_die( sprintf( __( 'Twenty Thirteen requires at least WordPress version 3.6. You are running version %s. Please upgrade and try again.', 'twentythirteen' ), $GLOBALS['wp_version'] ) );
63
add_action( 'template_redirect', 'twentythirteen_preview' );