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 ); } }