register_block_style_handle()
最后更新于:2021-11-27 21:29:33
register_block_style_handle( array$metadata, string$field_name)Finds a style handle for the block metadata field. It detects when a path to file was provided and registers the style under automatically generated handle name. It returns unprocessed style handle otherwise.
参数
- $metadata
-
(array) (Required) Block metadata.
- $field_name
-
(string) (Required) Field name to pick from metadata.
响应
(string|false) Style handle provided directly or created through style’s registration, or false on failure.
源文件
文件: gc-includes/blocks.php
function register_block_style_handle( $metadata, $field_name ) {
if ( empty( $metadata[ $field_name ] ) ) {
return false;
}
$is_core_block = isset( $metadata['file'] ) && 0 === strpos( $metadata['file'], ABSPATH . GCINC );
if ( $is_core_block && ! gc_should_load_separate_core_block_assets() ) {
return false;
}
// Check whether styles should have a ".min" suffix or not.
$suffix = SCRIPT_DEBUG ? '' : '.min';
$style_handle = $metadata[ $field_name ];
$style_path = remove_block_asset_path_prefix( $metadata[ $field_name ] );
if ( $style_handle === $style_path && ! $is_core_block ) {
return $style_handle;
}
$style_uri = plugins_url( $style_path, $metadata['file'] );
if ( $is_core_block ) {
$style_path = "style$suffix.css";
$style_uri = includes_url( 'blocks/' . str_replace( 'core/', '', $metadata['name'] ) . "/style$suffix.css" );
}
$style_handle = generate_block_asset_handle( $metadata['name'], $field_name );
$block_dir = dirname( $metadata['file'] );
$style_file = realpath( "$block_dir/$style_path" );
$has_style_file = false !== $style_file;
$version = ! $is_core_block && isset( $metadata['version'] ) ? $metadata['version'] : false;
$style_uri = $has_style_file ? $style_uri : false;
$result = gc_register_style(
$style_handle,
$style_uri,
array(),
$version
);
if ( file_exists( str_replace( '.css', '-rtl.css', $style_file ) ) ) {
gc_style_add_data( $style_handle, 'rtl', 'replace' );
}
if ( $has_style_file ) {
gc_style_add_data( $style_handle, 'path', $style_file );
}
$rtl_file = str_replace( "$suffix.css", "-rtl$suffix.css", $style_file );
if ( is_rtl() && file_exists( $rtl_file ) ) {
gc_style_add_data( $style_handle, 'path', $rtl_file );
}
return $result ? $style_handle : false;
}