WordPress/wp-includes/blocks/categories.php
youknowriad a41c798835 Block Editor: Updated the WordPress packages to include Gutenberg 15.1.0 changes.
In addition to all the packages being updated to the latest versions, 
this commit also includes some mandatory changes to avoid editor breakage:

 - Update React to to 18.2.0.
 - Add the right stylesheets to support iframed block editors.

Props ntsekouras, mamaduka, flixos90, desrosj, peterwilsoncc.
See #57471.

Built from https://develop.svn.wordpress.org/trunk@55246


git-svn-id: http://core.svn.wordpress.org/trunk@54779 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2023-02-07 07:04:52 +00:00

102 lines
2.8 KiB
PHP

<?php
/**
* Server-side rendering of the `core/categories` block.
*
* @package WordPress
*/
/**
* Renders the `core/categories` block on server.
*
* @param array $attributes The block attributes.
*
* @return string Returns the categories list/dropdown markup.
*/
function render_block_core_categories( $attributes ) {
static $block_id = 0;
++$block_id;
$args = array(
'echo' => false,
'hierarchical' => ! empty( $attributes['showHierarchy'] ),
'orderby' => 'name',
'show_count' => ! empty( $attributes['showPostCounts'] ),
'title_li' => '',
'hide_empty' => empty( $attributes['showEmpty'] ),
);
if ( ! empty( $attributes['showOnlyTopLevel'] ) && $attributes['showOnlyTopLevel'] ) {
$args['parent'] = 0;
}
if ( ! empty( $attributes['displayAsDropdown'] ) ) {
$id = 'wp-block-categories-' . $block_id;
$args['id'] = $id;
$args['show_option_none'] = __( 'Select Category' );
$wrapper_markup = '<div %1$s><label class="screen-reader-text" for="' . esc_attr( $id ) . '">' . __( 'Categories' ) . '</label>%2$s</div>';
$items_markup = wp_dropdown_categories( $args );
$type = 'dropdown';
if ( ! is_admin() ) {
// Inject the dropdown script immediately after the select dropdown.
$items_markup = preg_replace(
'#(?<=</select>)#',
build_dropdown_script_block_core_categories( $id ),
$items_markup,
1
);
}
} else {
$wrapper_markup = '<ul %1$s>%2$s</ul>';
$items_markup = wp_list_categories( $args );
$type = 'list';
}
$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => "wp-block-categories-{$type}" ) );
return sprintf(
$wrapper_markup,
$wrapper_attributes,
$items_markup
);
}
/**
* Generates the inline script for a categories dropdown field.
*
* @param string $dropdown_id ID of the dropdown field.
*
* @return string Returns the dropdown onChange redirection script.
*/
function build_dropdown_script_block_core_categories( $dropdown_id ) {
ob_start();
?>
<script type='text/javascript'>
/* <![CDATA[ */
( function() {
var dropdown = document.getElementById( '<?php echo esc_js( $dropdown_id ); ?>' );
function onCatChange() {
if ( dropdown.options[ dropdown.selectedIndex ].value > 0 ) {
location.href = "<?php echo esc_url( home_url() ); ?>/?cat=" + dropdown.options[ dropdown.selectedIndex ].value;
}
}
dropdown.onchange = onCatChange;
})();
/* ]]> */
</script>
<?php
return ob_get_clean();
}
/**
* Registers the `core/categories` block on server.
*/
function register_block_core_categories() {
register_block_type_from_metadata(
__DIR__ . '/categories',
array(
'render_callback' => 'render_block_core_categories',
)
);
}
add_action( 'init', 'register_block_core_categories' );