150 lines
3.8 KiB
PHP
150 lines
3.8 KiB
PHP
|
<?php
|
||
|
|
/**
|
||
|
|
* Server-side rendering of the `core/legacy-widget` block.
|
||
|
|
*
|
||
|
|
* @package WordPress
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Renders the 'core/legacy-widget' block.
|
||
|
|
*
|
||
|
|
* @param array $attributes The block attributes.
|
||
|
|
*
|
||
|
|
* @return string Rendered block.
|
||
|
|
*/
|
||
|
|
function render_block_core_legacy_widget( $attributes ) {
|
||
|
|
global $wp_widget_factory;
|
||
|
|
|
||
|
|
if ( isset( $attributes['id'] ) ) {
|
||
|
|
$sidebar_id = wp_find_widgets_sidebar( $attributes['id'] );
|
||
|
|
return wp_render_widget( $attributes['id'], $sidebar_id );
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( ! isset( $attributes['idBase'] ) ) {
|
||
|
|
return '';
|
||
|
|
}
|
||
|
|
|
||
|
|
$id_base = $attributes['idBase'];
|
||
|
|
$widget_key = $wp_widget_factory->get_widget_key( $id_base );
|
||
|
|
$widget_object = $wp_widget_factory->get_widget_object( $id_base );
|
||
|
|
|
||
|
|
if ( ! $widget_key || ! $widget_object ) {
|
||
|
|
return '';
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( isset( $attributes['instance']['encoded'], $attributes['instance']['hash'] ) ) {
|
||
|
|
$serialized_instance = base64_decode( $attributes['instance']['encoded'] );
|
||
|
|
if ( ! hash_equals( wp_hash( $serialized_instance ), (string) $attributes['instance']['hash'] ) ) {
|
||
|
|
return '';
|
||
|
|
}
|
||
|
|
$instance = unserialize( $serialized_instance );
|
||
|
|
} else {
|
||
|
|
$instance = array();
|
||
|
|
}
|
||
|
|
|
||
|
|
$args = array(
|
||
|
|
'widget_id' => $widget_object->id,
|
||
|
|
'widget_name' => $widget_object->name,
|
||
|
|
);
|
||
|
|
|
||
|
|
ob_start();
|
||
|
|
the_widget( $widget_key, $instance, $args );
|
||
|
|
return ob_get_clean();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Registers the 'core/legacy-widget' block.
|
||
|
|
*/
|
||
|
|
function register_block_core_legacy_widget() {
|
||
|
|
register_block_type_from_metadata(
|
||
|
|
__DIR__ . '/legacy-widget',
|
||
|
|
array(
|
||
|
|
'render_callback' => 'render_block_core_legacy_widget',
|
||
|
|
)
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
add_action( 'init', 'register_block_core_legacy_widget' );
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Intercepts any request with legacy-widget-preview in the query param and, if
|
||
|
|
* set, renders a page containing a preview of the requested Legacy Widget
|
||
|
|
* block.
|
||
|
|
*/
|
||
|
|
function handle_legacy_widget_preview_iframe() {
|
||
|
|
if ( empty( $_GET['legacy-widget-preview'] ) ) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( ! current_user_can( 'edit_theme_options' ) ) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
define( 'IFRAME_REQUEST', true );
|
||
|
|
|
||
|
|
?>
|
||
|
|
<!doctype html>
|
||
|
|
<html <?php language_attributes(); ?>>
|
||
|
|
<head>
|
||
|
|
<meta charset="<?php bloginfo( 'charset' ); ?>" />
|
||
|
|
<meta name="viewport" content="width=device-width, initial-scale=1" />
|
||
|
|
<link rel="profile" href="https://gmpg.org/xfn/11" />
|
||
|
|
<?php wp_head(); ?>
|
||
|
|
<style>
|
||
|
|
/* Reset theme styles */
|
||
|
|
html, body, #page, #content {
|
||
|
|
padding: 0 !important;
|
||
|
|
margin: 0 !important;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Hide root level text nodes */
|
||
|
|
body {
|
||
|
|
font-size: 0 !important;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Hide non-widget elements */
|
||
|
|
body *:not(#page):not(#content):not(.widget):not(.widget *) {
|
||
|
|
display: none !important;
|
||
|
|
font-size: 0 !important;
|
||
|
|
height: 0 !important;
|
||
|
|
left: -9999px !important;
|
||
|
|
max-height: 0 !important;
|
||
|
|
max-width: 0 !important;
|
||
|
|
opacity: 0 !important;
|
||
|
|
pointer-events: none !important;
|
||
|
|
position: absolute !important;
|
||
|
|
top: -9999px !important;
|
||
|
|
transform: translate(-9999px, -9999px) !important;
|
||
|
|
visibility: hidden !important;
|
||
|
|
z-index: -999 !important;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Restore widget font-size */
|
||
|
|
.widget {
|
||
|
|
font-size: var(--global--font-size-base);
|
||
|
|
}
|
||
|
|
</style>
|
||
|
|
</head>
|
||
|
|
<body <?php body_class(); ?>>
|
||
|
|
<div id="page" class="site">
|
||
|
|
<div id="content" class="site-content">
|
||
|
|
<?php
|
||
|
|
$registry = WP_Block_Type_Registry::get_instance();
|
||
|
|
$block = $registry->get_registered( 'core/legacy-widget' );
|
||
|
|
echo $block->render( $_GET['legacy-widget-preview'] );
|
||
|
|
?>
|
||
|
|
</div><!-- #content -->
|
||
|
|
</div><!-- #page -->
|
||
|
|
<?php wp_footer(); ?>
|
||
|
|
</body>
|
||
|
|
</html>
|
||
|
|
<?php
|
||
|
|
|
||
|
|
exit;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Use admin_init instead of init to ensure get_current_screen function is already available.
|
||
|
|
// This isn't strictly required, but enables better compatibility with existing plugins.
|
||
|
|
// See: https://github.com/WordPress/gutenberg/issues/32624.
|
||
|
|
add_action( 'admin_init', 'handle_legacy_widget_preview_iframe', 20 );
|