As the sun rises and the forest mist clears, and the clouds return and the caves darken, these changes of light and shadow are the morning and evening in the mountains. Wildflowers bloom with their subtle fragrance, fine trees flourish with their dense shade, the wind and frost are pure and clean, and the water recedes to reveal the rocks—these are the four seasons in the mountains. Going out in the morning and returning in the evening, the scenery of the four seasons is different, and the joy is endless.至于负者歌于途,行者休于树,前者呼,后者应,伛偻提携,往来而不绝者,滁人游也。临溪而渔,溪深而鱼肥,酿泉为酒,泉香而酒洌,山肴野蔌,杂然而前陈者,太守宴也。宴酣之乐,非丝非竹,射者中,弈者胜,觥筹交错,起坐而喧哗者,众宾欢也。苍颜白发,颓然乎其间者,太守醉也。
<?php
/**
* Blocks API: WP_Block_Patterns_Registry class
*
* @package WordPress
* @subpackage Blocks
* @since 5.5.0
*/
/**
* Class used for interacting with block patterns.
*
* @since 5.5.0
*/
#[AllowDynamicProperties]
final class WP_Block_Patterns_Registry {
/**
* Registered block patterns array.
*
* @since 5.5.0
* @var array[]
*/
private $registered_patterns = array();
/**
* Patterns registered outside the `init` action.
*
* @since 6.0.0
* @var array[]
*/
private $registered_patterns_outside_init = array();
/**
* Container for the main instance of the class.
*
* @since 5.5.0
* @var WP_Block_Patterns_Registry|null
*/
private static $instance = null;
/**
* Registers a block pattern.
*
* @since 5.5.0
* @since 5.8.0 Added support for the `blockTypes` property.
* @since 6.1.0 Added support for the `postTypes` property.
* @since 6.2.0 Added support for the `templateTypes` property.
* @since 6.5.0 Added support for the `filePath` property.
*
* @param string $pattern_name Block pattern name including namespace.
* @param array $pattern_properties {
* List of properties for the block pattern.
*
* @type string $title Required. A human-readable title for the pattern.
* @type string $content Optional. Block HTML markup for the pattern.
* If not provided, the content will be retrieved from the `filePath` if set.
* If both `content` and `filePath` are not set, the pattern will not be registered.
* @type string $description Optional. Visually hidden text used to describe the pattern
* in the inserter. A description is optional, but is strongly
* encouraged when the title does not fully describe what the
* pattern does. The description will help users discover the
* pattern while searching.
* @type int $viewportWidth Optional. The intended width of the pattern to allow for a scaled
* preview within the pattern inserter.
* @type bool $inserter Optional. Determines whether the pattern is visible in inserter.
* To hide a pattern so that it can only be inserted programmatically,
* set this to false. Default true.
* @type string[] $categories Optional. A list of registered pattern categories used to group
* block patterns. Block patterns can be shown on multiple categories.
* A category must be registered separately in order to be used here.
* @type string[] $keywords Optional. A list of aliases or keywords that help users discover
* the pattern while searching.
* @type string[] $blockTypes Optional. A list of block names including namespace that could use
* the block pattern in certain contexts (placeholder, transforms).
* The block pattern is available in the block editor inserter
* regardless of this list of block names.
* Certain blocks support further specificity besides the block name
* (e.g. for `core/template-part` you can specify areas
* like `core/template-part/header` or `core/template-part/footer`).
* @type string[] $postTypes Optional. An array of post types that the pattern is restricted
* to be used with. The pattern will only be available when editing one
* of the post types passed on the array. For all the other post types
* not part of the array the pattern is not available at all.
* @type string[] $templateTypes Optional. An array of template types where the pattern fits.
* @type string $filePath Optional. The full path to the file containing the block pattern content.
* }
* @return bool True if the pattern was registered with success and false otherwise.
*/
public function register( $pattern_name, $pattern_properties ) {
if ( ! isset( $pattern_name ) || ! is_string( $pattern_name ) ) {
_doing_it_wrong(
__METHOD__,
__( 'Pattern name must be a string.' ),
'5.5.0'
);
return false;
}
if ( ! isset( $pattern_properties['title'] ) || ! is_string( $pattern_properties['title'] ) ) {
_doing_it_wrong(
__METHOD__,
__( 'Pattern title must be a string.' ),
'5.5.0'
);
return false;
}
if ( ! isset( $pattern_properties['filePath'] ) ) {
if ( ! isset( $pattern_properties['content'] ) || ! is_string( $pattern_properties['content'] ) ) {
_doing_it_wrong(
__METHOD__,
__( 'Pattern content must be a string.' ),
'5.5.0'
);
return false;
}
}
$pattern = array_merge(
$pattern_properties,
array( 'name' => $pattern_name )
);
$this->registered_patterns[ $pattern_name ] = $pattern;
// If the pattern is registered inside an action other than `init`, store it
// also to a dedicated array. Used to detect deprecated registrations inside
// `admin_init` or `current_screen`.
if ( current_action() && 'init' !== current_action() ) {
$this->registered_patterns_outside_init[ $pattern_name ] = $pattern;
}
return true;
}
/**
* Unregisters a block pattern.
*
* @since 5.5.0
*
* @param string $pattern_name Block pattern name including namespace.
* @return bool True if the pattern was unregistered with success and false otherwise.
*/
public function unregister( $pattern_name ) {
if ( ! $this->is_registered( $pattern_name ) ) {
_doing_it_wrong(
__METHOD__,
/* translators: %s: Pattern name. */
sprintf( __( 'Pattern "%s" not found.' ), $pattern_name ),
'5.5.0'
);
return false;
}
unset( $this->registered_patterns[ $pattern_name ] );
unset( $this->registered_patterns_outside_init[ $pattern_name ] );
return true;
}
/**
* Retrieves the content of a registered block pattern.
*
* @since 6.5.0
*
* @param string $pattern_name Block pattern name including namespace.
* @param bool $outside_init_only Optional. Return only patterns registered outside the `init` action. Default false.
* @return string The content of the block pattern.
*/
private function get_content( $pattern_name, $outside_init_only = false ) {
if ( $outside_init_only ) {
$patterns = &$this->registered_patterns_outside_init;
} else {
$patterns = &$this->registered_patterns;
}
$file_path = $patterns[ $pattern_name ]['filePath'] ?? '';
$is_stringy = is_string( $file_path ) || ( is_object( $file_path ) && method_exists( $file_path, '__toString' ) );
$pattern_path = $is_stringy ? realpath( (string) $file_path ) : null;
if (
! isset( $patterns[ $pattern_name ]['content'] ) &&
is_string( $pattern_path ) &&
( str_ends_with( $pattern_path, '.php' ) || str_ends_with( $pattern_path, '.html' ) ) &&
is_file( $pattern_path ) &&
is_readable( $pattern_path )
) {
ob_start();
include $patterns[ $pattern_name ]['filePath'];
$patterns[ $pattern_name ]['content'] = ob_get_clean();
unset( $patterns[ $pattern_name ]['filePath'] );
}
return $patterns[ $pattern_name ]['content'];
}
/**
* Retrieves an array containing the properties of a registered block pattern.
*
* @since 5.5.0
*
* @param string $pattern_name Block pattern name including namespace.
* @return array|null Registered pattern properties or `null` if the pattern is not registered.
*/
public function get_registered( $pattern_name ) {
if ( ! $this->is_registered( $pattern_name ) ) {
return null;
}
$pattern = $this->registered_patterns[ $pattern_name ];
$content = $this->get_content( $pattern_name );
$pattern['content'] = apply_block_hooks_to_content(
$content,
$pattern,
'insert_hooked_blocks_and_set_ignored_hooked_blocks_metadata'
);
return $pattern;
}
/**
* Retrieves all registered block patterns.
*
* @since 5.5.0
*
* @param bool $outside_init_only Return only patterns registered outside the `init` action.
* @return array[] Array of arrays containing the registered block patterns properties,
* and per style.
*/
public function get_all_registered( $outside_init_only = false ) {
$patterns = $outside_init_only
? $this->registered_patterns_outside_init
: $this->registered_patterns;
$hooked_blocks = get_hooked_blocks();
foreach ( $patterns as $index => $pattern ) {
$content = $this->get_content( $pattern['name'], $outside_init_only );
$patterns[ $index ]['content'] = apply_block_hooks_to_content(
$content,
$pattern,
'insert_hooked_blocks_and_set_ignored_hooked_blocks_metadata'
);
}
return array_values( $patterns );
}
/**
* Checks if a block pattern is registered.
*
* @since 5.5.0
*
* @param string|null $pattern_name Block pattern name including namespace.
* @return bool True if the pattern is registered, false otherwise.
*/
public function is_registered( $pattern_name ) {
return isset( $pattern_name, $this->registered_patterns[ $pattern_name ] );
}
public function __wakeup() {
if ( ! $this->registered_patterns ) {
return;
}
if ( ! is_array( $this->registered_patterns ) ) {
throw new UnexpectedValueException();
}
foreach ( $this->registered_patterns as $value ) {
if ( ! is_array( $value ) ) {
throw new UnexpectedValueException();
}
}
$this->registered_patterns_outside_init = array();
}
/**
* Utility method to retrieve the main instance of the class.
*
* The instance will be created if it does not exist yet.
*
* @since 5.5.0
*
* @return WP_Block_Patterns_Registry The main instance.
*/
public static function get_instance() {
if ( null === self::$instance ) {
self::$instance = new self();
}
return self::$instance;
}
}