Prepends a sub-selector to an existing one.

Description

Given the compounded $selector "h1, h2, h3" and the $to_prepend selector ".some-class " the result will be ".some-class h1, .some-class h2, .some-class h3".

Parameters

$selectorstringrequired

Original selector.

$to_prependstringrequired

Selector to prepend.

Return

Source

 * @return array Theme json data with shared variation definitions unwrapped under appropriate block types.
 */
private static function unwrap_shared_block_style_variations( $theme_json, $valid_variations ) {
	if ( empty( $theme_json['styles']['variations'] ) || empty( $valid_variations ) ) {
		return $theme_json;
	}

	$new_theme_json = $theme_json;
	$variations     = $new_theme_json['styles']['variations'];

	foreach ( $valid_variations as $block_type => $registered_variations ) {

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