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<?php |
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|
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namespace Extendify\Agent; |
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|
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defined('ABSPATH') || die('No direct access.'); |
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|
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// Shared by the read and write halves so they can never resolve a |
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// different block for the same TagBlocks id. |
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class PostBlockFinder |
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{ |
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// phpcs:ignore PSR12.Properties.ConstantVisibility.NotFound |
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const REF_KEY = 'extendifyBlockRef'; |
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|
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// Stamps survive splices and reorders, so ids stay resolvable while a |
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// batch reshapes the tree. serialize_blocks ignores the extra key. |
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public static function stamp(array $blocks): array |
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{ |
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$seq = 0; |
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$walk = function (array $list) use (&$walk, &$seq) { |
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foreach ($list as $i => $block) { |
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if (empty($block['blockName'])) { |
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continue; |
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} |
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|
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// Untagged at render time — skip whole, uncounted, to match. |
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if (in_array($block['blockName'], TagBlocks::$ignored, true)) { |
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continue; |
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} |
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|
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$seq++; |
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$list[$i][self::REF_KEY] = $seq; |
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if (!empty($block['innerBlocks'])) { |
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$list[$i]['innerBlocks'] = $walk($block['innerBlocks']); |
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} |
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} |
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return $list; |
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}; |
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return $walk($blocks); |
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} |
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|
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// Path elements alternate index / 'innerBlocks' / index … |
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public static function pathByRef(array $blocks, int $ref) |
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{ |
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foreach ($blocks as $i => $block) { |
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if (($block[self::REF_KEY] ?? null) === $ref) { |
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return [$i]; |
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} |
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if (!empty($block['innerBlocks']) && is_array($block['innerBlocks'])) { |
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$childPath = self::pathByRef($block['innerBlocks'], $ref); |
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if ($childPath !== null) { |
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return array_merge([$i, 'innerBlocks'], $childPath); |
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} |
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} |
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} |
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return null; |
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} |
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|
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public static function find(array $blocks, int $targetId) |
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{ |
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$path = self::pathByRef(self::stamp($blocks), $targetId); |
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if ($path === null) { |
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return null; |
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} |
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|
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$node = $blocks; |
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foreach ($path as $key) { |
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$node = $node[$key]; |
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} |
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return ['block' => $node, 'path' => $path]; |
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} |
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} |
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|
