mirror of
https://github.com/WordPress/WordPress.git
synced 2024-11-20 17:46:48 +01:00
3f2e7804c4
Backports functionality added in Gutenberg in the following PRs: - https://github.com/WordPress/gutenberg/pull/21467 - https://github.com/WordPress/gutenberg/pull/21925 It's a few ideas related to block rendering and the provided block value, which is particularly impactful for work around block context. Props aduth, TimothyBJacobs, noisysocks, epiqueras, youknowriad, talldanwp, zebulan. Fixes #49926. Built from https://develop.svn.wordpress.org/trunk@48159 git-svn-id: http://core.svn.wordpress.org/trunk@47928 1a063a9b-81f0-0310-95a4-ce76da25c4cd
204 lines
4.4 KiB
PHP
204 lines
4.4 KiB
PHP
<?php
|
|
/**
|
|
* Blocks API: WP_Block_List class
|
|
*
|
|
* @package WordPress
|
|
* @since 5.5.0
|
|
*/
|
|
|
|
/**
|
|
* Class representing a list of block instances.
|
|
*
|
|
* @since 5.5.0
|
|
*/
|
|
class WP_Block_List implements Iterator, ArrayAccess, Countable {
|
|
|
|
/**
|
|
* Original array of parsed block data, or block instances.
|
|
*
|
|
* @since 5.5.0
|
|
* @var array[]|WP_Block[]
|
|
* @access protected
|
|
*/
|
|
protected $blocks;
|
|
|
|
/**
|
|
* All available context of the current hierarchy.
|
|
*
|
|
* @since 5.5.0
|
|
* @var array
|
|
* @access protected
|
|
*/
|
|
protected $available_context;
|
|
|
|
/**
|
|
* Block type registry to use in constructing block instances.
|
|
*
|
|
* @since 5.5.0
|
|
* @var WP_Block_Type_Registry
|
|
* @access protected
|
|
*/
|
|
protected $registry;
|
|
|
|
/**
|
|
* Constructor.
|
|
*
|
|
* Populates object properties from the provided block instance argument.
|
|
*
|
|
* @since 5.5.0
|
|
*
|
|
* @param array[]|WP_Block[] $blocks Array of parsed block data, or block instances.
|
|
* @param array $available_context Optional array of ancestry context values.
|
|
* @param WP_Block_Type_Registry $registry Optional block type registry.
|
|
*/
|
|
public function __construct( $blocks, $available_context = array(), $registry = null ) {
|
|
if ( ! $registry instanceof WP_Block_Type_Registry ) {
|
|
$registry = WP_Block_Type_Registry::get_instance();
|
|
}
|
|
|
|
$this->blocks = $blocks;
|
|
$this->available_context = $available_context;
|
|
$this->registry = $registry;
|
|
}
|
|
|
|
/**
|
|
* Returns true if a block exists by the specified block index, or false
|
|
* otherwise.
|
|
*
|
|
* @since 5.5.0
|
|
*
|
|
* @link https://www.php.net/manual/en/arrayaccess.offsetexists.php
|
|
*
|
|
* @param string $index Index of block to check.
|
|
* @return bool Whether block exists.
|
|
*/
|
|
public function offsetExists( $index ) {
|
|
return isset( $this->blocks[ $index ] );
|
|
}
|
|
|
|
/**
|
|
* Returns the value by the specified block index.
|
|
*
|
|
* @since 5.5.0
|
|
*
|
|
* @link https://www.php.net/manual/en/arrayaccess.offsetget.php
|
|
*
|
|
* @param string $index Index of block value to retrieve.
|
|
* @return mixed|null Block value if exists, or null.
|
|
*/
|
|
public function offsetGet( $index ) {
|
|
$block = $this->blocks[ $index ];
|
|
|
|
if ( isset( $block ) && is_array( $block ) ) {
|
|
$block = new WP_Block( $block, $this->available_context, $this->registry );
|
|
$this->blocks[ $index ] = $block;
|
|
}
|
|
|
|
return $block;
|
|
}
|
|
|
|
/**
|
|
* Assign a block value by the specified block index.
|
|
*
|
|
* @since 5.5.0
|
|
*
|
|
* @link https://www.php.net/manual/en/arrayaccess.offsetset.php
|
|
*
|
|
* @param string $index Index of block value to set.
|
|
* @param mixed $value Block value.
|
|
*/
|
|
public function offsetSet( $index, $value ) {
|
|
if ( is_null( $index ) ) {
|
|
$this->blocks[] = $value;
|
|
} else {
|
|
$this->blocks[ $index ] = $value;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Unset a block.
|
|
*
|
|
* @since 5.5.0
|
|
*
|
|
* @link https://www.php.net/manual/en/arrayaccess.offsetunset.php
|
|
*
|
|
* @param string $index Index of block value to unset.
|
|
*/
|
|
public function offsetUnset( $index ) {
|
|
unset( $this->blocks[ $index ] );
|
|
}
|
|
|
|
/**
|
|
* Rewinds back to the first element of the Iterator.
|
|
*
|
|
* @since 5.5.0
|
|
*
|
|
* @link https://www.php.net/manual/en/iterator.rewind.php
|
|
*/
|
|
public function rewind() {
|
|
reset( $this->blocks );
|
|
}
|
|
|
|
/**
|
|
* Returns the current element of the block list.
|
|
*
|
|
* @since 5.5.0
|
|
*
|
|
* @link https://www.php.net/manual/en/iterator.current.php
|
|
*
|
|
* @return mixed Current element.
|
|
*/
|
|
public function current() {
|
|
return $this->offsetGet( $this->key() );
|
|
}
|
|
|
|
/**
|
|
* Returns the key of the current element of the block list.
|
|
*
|
|
* @since 5.5.0
|
|
*
|
|
* @link https://www.php.net/manual/en/iterator.key.php
|
|
*
|
|
* @return mixed Key of the current element.
|
|
*/
|
|
public function key() {
|
|
return key( $this->blocks );
|
|
}
|
|
|
|
/**
|
|
* Moves the current position of the block list to the next element.
|
|
*
|
|
* @since 5.5.0
|
|
*
|
|
* @link https://www.php.net/manual/en/iterator.next.php
|
|
*/
|
|
public function next() {
|
|
next( $this->blocks );
|
|
}
|
|
|
|
/**
|
|
* Checks if current position is valid.
|
|
*
|
|
* @since 5.5.0
|
|
*
|
|
* @link https://www.php.net/manual/en/iterator.valid.php
|
|
*/
|
|
public function valid() {
|
|
return null !== key( $this->blocks );
|
|
}
|
|
|
|
/**
|
|
* Returns the count of blocks in the list.
|
|
*
|
|
* @since 5.5.0
|
|
*
|
|
* @link https://www.php.net/manual/en/countable.count.php
|
|
*
|
|
* @return int Block count.
|
|
*/
|
|
public function count() {
|
|
return count( $this->blocks );
|
|
}
|
|
|
|
}
|