WP_Interactivity_API::get_router_animation_styles(): string

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/**
 * Processes the `data-wp-context` directive.
 *
 * It adds the context defined in the directive value to the stack so that
 * it's available for the nested interactivity elements.
 *
 * @since 6.5.0
 *
 * @param WP_Interactivity_API_Directives_Processor $p               The directives processor instance.
 * @param string                                    $mode            Whether the processing is entering or exiting the tag.
 */
private function data_wp_context_processor( WP_Interactivity_API_Directives_Processor $p, string $mode ) {
	// When exiting tags, it removes the last context from the stack.
	if ( 'exit' === $mode ) {
		array_pop( $this->context_stack );
		return;
	}

	$attribute_value = $p->get_attribute( 'data-wp-context' );
	$namespace_value = end( $this->namespace_stack );

	// Separates the namespace from the context JSON object.
	list( $namespace_value, $decoded_json ) = is_string( $attribute_value ) && ! empty( $attribute_value )
		? $this->extract_directive_value( $attribute_value, $namespace_value )
		: array( $namespace_value, null );

	/*
	 * If there is a namespace, it adds a new context to the stack merging the
	 * previous context with the new one.
	 */

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