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