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<?php
/*
* Site Logo.
* @see https://jetpack.com/support/site-logo/
*
* This feature will only be activated for themes that declare their support.
* This can be done by adding code similar to the following during the
* 'after_setup_theme' action:
*
* $args = array(
* 'header-text' => array(
* 'site-title',
* 'site-description',
* ),
* 'size' => 'medium',
* );
* add_theme_support( 'site-logo', $args );
*
*/
/**
* Activate the Site Logo plugin.
*
* @uses current_theme_supports()
* @since 3.2.0
* @since 9.9.0 Uses Core site_logo option format universally.
*/
function site_logo_init() {
// Only load our code if our theme declares support, and the standalone plugin is not activated.
if ( current_theme_supports( 'site-logo' ) && ! class_exists( 'Site_Logo', false ) ) {
// Load our class for namespacing.
require dirname( __FILE__ ) . '/site-logo/inc/class-site-logo.php';
// Load template tags.
require dirname( __FILE__ ) . '/site-logo/inc/functions.php';
// Load backwards-compatible template tags.
require dirname( __FILE__ ) . '/site-logo/inc/compat.php';
}
}
add_action( 'init', 'site_logo_init' );
/**
* When switching from a legacy theme that uses `site-logo` to a theme that uses `custom-logo`,
* update the theme's custom logo if it doesn't already have one.
*
* @return void
*/
function jetpack_update_custom_logo_from_site_logo() {
$site_logo = get_option( 'site_logo' );
if ( current_theme_supports( 'custom-logo' ) && ! get_theme_mod( 'custom_logo' ) && $site_logo ) {
set_theme_mod( 'custom_logo', $site_logo );
}
}
add_action( 'after_switch_theme', 'jetpack_update_custom_logo_from_site_logo', 10, 0 );
/**
* Transforms the legacy site_logo array, when present, into an attachment ID.
*
* The attachment ID is the format used for the site_logo option by the Site Logo block,
* and the updated Jetpack site-logo feature.
*
* @since 9.9.0
*
* @param int|array $site_logo Option.
* @return int
*/
function jetpack_site_logo_block_compat( $site_logo ) {
if ( isset( $site_logo['id'] ) ) {
remove_filter( 'option_site_logo', 'jetpack_site_logo_block_compat', 1 );
update_option( 'site_logo', $site_logo['id'] );
return $site_logo['id'];
}
return $site_logo;
}
add_filter( 'option_site_logo', 'jetpack_site_logo_block_compat', 1 );
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