291 lines
9.8 KiB
PHP
291 lines
9.8 KiB
PHP
<?php
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/**
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* Blocks API: WP_Block_Patterns_Registry class
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*
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* @package WordPress
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* @subpackage Blocks
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* @since 5.5.0
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*/
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/**
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* Class used for interacting with block patterns.
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*
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* @since 5.5.0
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*/
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#[AllowDynamicProperties]
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final class WP_Block_Patterns_Registry {
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/**
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* Registered block patterns array.
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*
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* @since 5.5.0
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* @var array[]
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*/
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private $registered_patterns = array();
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/**
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* Patterns registered outside the `init` action.
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*
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* @since 6.0.0
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* @var array[]
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*/
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private $registered_patterns_outside_init = array();
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/**
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* Container for the main instance of the class.
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*
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* @since 5.5.0
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* @var WP_Block_Patterns_Registry|null
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*/
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private static $instance = null;
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/**
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* Registers a block pattern.
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*
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* @since 5.5.0
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* @since 5.8.0 Added support for the `blockTypes` property.
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* @since 6.1.0 Added support for the `postTypes` property.
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* @since 6.2.0 Added support for the `templateTypes` property.
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*
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* @param string $pattern_name Block pattern name including namespace.
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* @param array $pattern_properties {
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* List of properties for the block pattern.
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*
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* @type string $title Required. A human-readable title for the pattern.
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* @type string $content Required. Block HTML markup for the pattern.
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* @type string $description Optional. Visually hidden text used to describe the pattern
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* in the inserter. A description is optional, but is strongly
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* encouraged when the title does not fully describe what the
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* pattern does. The description will help users discover the
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* pattern while searching.
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* @type int $viewportWidth Optional. The intended width of the pattern to allow for a scaled
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* preview within the pattern inserter.
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* @type bool $inserter Optional. Determines whether the pattern is visible in inserter.
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* To hide a pattern so that it can only be inserted programmatically,
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* set this to false. Default true.
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* @type string[] $categories Optional. A list of registered pattern categories used to group
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* block patterns. Block patterns can be shown on multiple categories.
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* A category must be registered separately in order to be used here.
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* @type string[] $keywords Optional. A list of aliases or keywords that help users discover
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* the pattern while searching.
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* @type string[] $blockTypes Optional. A list of block names including namespace that could use
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* the block pattern in certain contexts (placeholder, transforms).
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* The block pattern is available in the block editor inserter
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* regardless of this list of block names.
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* Certain blocks support further specificity besides the block name
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* (e.g. for `core/template-part` you can specify areas
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* like `core/template-part/header` or `core/template-part/footer`).
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* @type string[] $postTypes Optional. An array of post types that the pattern is restricted
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* to be used with. The pattern will only be available when editing one
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* of the post types passed on the array. For all the other post types
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* not part of the array the pattern is not available at all.
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* @type string[] $templateTypes Optional. An array of template types where the pattern fits.
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* }
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* @return bool True if the pattern was registered with success and false otherwise.
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*/
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public function register( $pattern_name, $pattern_properties ) {
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if ( ! isset( $pattern_name ) || ! is_string( $pattern_name ) ) {
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_doing_it_wrong(
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__METHOD__,
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__( 'Pattern name must be a string.' ),
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'5.5.0'
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);
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return false;
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}
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if ( ! isset( $pattern_properties['title'] ) || ! is_string( $pattern_properties['title'] ) ) {
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_doing_it_wrong(
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__METHOD__,
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__( 'Pattern title must be a string.' ),
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'5.5.0'
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);
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return false;
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}
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if ( ! isset( $pattern_properties['content'] ) || ! is_string( $pattern_properties['content'] ) ) {
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_doing_it_wrong(
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__METHOD__,
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__( 'Pattern content must be a string.' ),
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'5.5.0'
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);
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return false;
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}
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$pattern = array_merge(
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$pattern_properties,
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array( 'name' => $pattern_name )
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);
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$this->registered_patterns[ $pattern_name ] = $pattern;
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// If the pattern is registered inside an action other than `init`, store it
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// also to a dedicated array. Used to detect deprecated registrations inside
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// `admin_init` or `current_screen`.
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if ( current_action() && 'init' !== current_action() ) {
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$this->registered_patterns_outside_init[ $pattern_name ] = $pattern;
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}
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return true;
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}
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/**
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* Unregisters a block pattern.
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*
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* @since 5.5.0
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*
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* @param string $pattern_name Block pattern name including namespace.
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* @return bool True if the pattern was unregistered with success and false otherwise.
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*/
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public function unregister( $pattern_name ) {
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if ( ! $this->is_registered( $pattern_name ) ) {
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_doing_it_wrong(
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__METHOD__,
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/* translators: %s: Pattern name. */
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sprintf( __( 'Pattern "%s" not found.' ), $pattern_name ),
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'5.5.0'
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);
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return false;
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}
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unset( $this->registered_patterns[ $pattern_name ] );
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unset( $this->registered_patterns_outside_init[ $pattern_name ] );
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return true;
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}
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/**
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* Prepares the content of a block pattern. If hooked blocks are registered, they get injected into the pattern,
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* when they met the defined criteria.
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*
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* @since 6.4.0
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*
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* @param array $pattern Registered pattern properties.
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* @param array $hooked_blocks The list of hooked blocks.
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* @return string The content of the block pattern.
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*/
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private function prepare_content( $pattern, $hooked_blocks ) {
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$content = $pattern['content'];
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$before_block_visitor = '_inject_theme_attribute_in_template_part_block';
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$after_block_visitor = null;
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if ( ! empty( $hooked_blocks ) || has_filter( 'hooked_block_types' ) ) {
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$before_block_visitor = make_before_block_visitor( $hooked_blocks, $pattern );
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$after_block_visitor = make_after_block_visitor( $hooked_blocks, $pattern );
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}
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$blocks = parse_blocks( $content );
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$content = traverse_and_serialize_blocks( $blocks, $before_block_visitor, $after_block_visitor );
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return $content;
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}
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/**
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* Retrieves an array containing the properties of a registered block pattern.
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*
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* @since 5.5.0
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*
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* @param string $pattern_name Block pattern name including namespace.
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* @return array Registered pattern properties.
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*/
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public function get_registered( $pattern_name ) {
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if ( ! $this->is_registered( $pattern_name ) ) {
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return null;
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}
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$pattern = $this->registered_patterns[ $pattern_name ];
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$pattern['content'] = $this->prepare_content( $pattern, get_hooked_blocks() );
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return $pattern;
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}
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/**
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* Retrieves all registered block patterns.
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*
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* @since 5.5.0
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*
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* @param bool $outside_init_only Return only patterns registered outside the `init` action.
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* @return array[] Array of arrays containing the registered block patterns properties,
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* and per style.
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*/
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public function get_all_registered( $outside_init_only = false ) {
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$patterns = array_values(
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$outside_init_only
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? $this->registered_patterns_outside_init
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: $this->registered_patterns
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);
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$hooked_blocks = get_hooked_blocks();
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foreach ( $patterns as $index => $pattern ) {
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$patterns[ $index ]['content'] = $this->prepare_content( $pattern, $hooked_blocks );
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}
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return $patterns;
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}
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/**
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* Checks if a block pattern is registered.
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*
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* @since 5.5.0
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*
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* @param string $pattern_name Block pattern name including namespace.
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* @return bool True if the pattern is registered, false otherwise.
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*/
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public function is_registered( $pattern_name ) {
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return isset( $this->registered_patterns[ $pattern_name ] );
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}
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public function __wakeup() {
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if ( ! $this->registered_patterns ) {
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return;
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}
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if ( ! is_array( $this->registered_patterns ) ) {
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throw new UnexpectedValueException();
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}
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foreach ( $this->registered_patterns as $value ) {
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if ( ! is_array( $value ) ) {
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throw new UnexpectedValueException();
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}
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}
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$this->registered_patterns_outside_init = array();
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}
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/**
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* Utility method to retrieve the main instance of the class.
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*
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* The instance will be created if it does not exist yet.
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*
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* @since 5.5.0
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*
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* @return WP_Block_Patterns_Registry The main instance.
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*/
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public static function get_instance() {
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if ( null === self::$instance ) {
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self::$instance = new self();
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}
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return self::$instance;
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}
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}
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/**
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* Registers a new block pattern.
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*
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* @since 5.5.0
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*
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* @param string $pattern_name Block pattern name including namespace.
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* @param array $pattern_properties List of properties for the block pattern.
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* See WP_Block_Patterns_Registry::register() for accepted arguments.
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* @return bool True if the pattern was registered with success and false otherwise.
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*/
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function register_block_pattern( $pattern_name, $pattern_properties ) {
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return WP_Block_Patterns_Registry::get_instance()->register( $pattern_name, $pattern_properties );
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}
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/**
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* Unregisters a block pattern.
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*
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* @since 5.5.0
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*
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* @param string $pattern_name Block pattern name including namespace.
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* @return bool True if the pattern was unregistered with success and false otherwise.
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*/
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function unregister_block_pattern( $pattern_name ) {
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return WP_Block_Patterns_Registry::get_instance()->unregister( $pattern_name );
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}
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