| 1 |
<?php |
| 2 |
|
| 3 |
namespace Extendify\Agent\Controllers; |
| 4 |
|
| 5 |
defined('ABSPATH') || die('No direct access.'); |
| 6 |
|
| 7 |
use Extendify\Agent\PostBlockFinder; |
| 8 |
use Extendify\Agent\TemplatePartBlockFinder; |
| 9 |
|
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// Ops splice in request order against one stamped parse, so earlier ops never |
| 11 |
// invalidate later ids; untouched blocks round-trip byte-for-byte. |
| 12 |
class UpdateBlocksController |
| 13 |
{ |
| 14 |
// Labels match the words the apply helpers use for a missing id. |
| 15 |
// phpcs:ignore PSR12.Properties.ConstantVisibility.NotFound |
| 16 |
const ID_FIELDS = [ |
| 17 |
'blockId' => 'block id', |
| 18 |
'anchorId' => 'anchor block', |
| 19 |
'targetId' => 'target block', |
| 20 |
]; |
| 21 |
|
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// Keyed by the model-facing container word; the placeholder paragraph |
| 23 |
// marks the wrapped block's slot. |
| 24 |
// phpcs:ignore PSR12.Properties.ConstantVisibility.NotFound |
| 25 |
const WRAP_TEMPLATES = [ |
| 26 |
'core/column' => '<!-- wp:columns --><div class="wp-block-columns">' |
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. '<!-- wp:column --><div class="wp-block-column">' |
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. '<!-- wp:paragraph --><p></p><!-- /wp:paragraph -->' |
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. '</div><!-- /wp:column -->' |
| 30 |
. '</div><!-- /wp:columns -->', |
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'core/group' => '<!-- wp:group {"layout":{"type":"constrained"}} -->' |
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. '<div class="wp-block-group">' |
| 33 |
. '<!-- wp:paragraph --><p></p><!-- /wp:paragraph -->' |
| 34 |
. '</div><!-- /wp:group -->', |
| 35 |
]; |
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|
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/** |
| 38 |
* Apply a batch of block operations to a post. |
| 39 |
* |
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* @param \WP_REST_Request $request The REST API request object. |
| 41 |
* @return \WP_REST_Response |
| 42 |
*/ |
| 43 |
public static function updateBlocks(\WP_REST_Request $request) |
| 44 |
{ |
| 45 |
$params = $request->get_json_params(); |
| 46 |
$params = is_array($params) ? $params : []; |
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|
| 48 |
$partSlug = (string) ($params['partSlug'] ?? ''); |
| 49 |
$inTemplatePart = $partSlug !== ''; |
| 50 |
|
| 51 |
if ($inTemplatePart) { |
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$post = self::resolveTemplatePart($partSlug); |
| 53 |
if (\is_wp_error($post)) { |
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return new \WP_REST_Response(['error' => $post->get_error_message()], 404); |
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} |
| 56 |
if (!\current_user_can('edit_theme_options')) { |
| 57 |
return new \WP_REST_Response(['error' => 'Forbidden for this template part'], 403); |
| 58 |
} |
| 59 |
$blocks = TemplatePartBlockFinder::stamp(\parse_blocks($post->post_content)); |
| 60 |
} else { |
| 61 |
$postId = (int) ($params['postId'] ?? 0); |
| 62 |
$post = $postId ? \get_post($postId) : null; |
| 63 |
if (!$post) { |
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return new \WP_REST_Response(['error' => 'Post not found'], 404); |
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} |
| 66 |
if (!\current_user_can('edit_post', $post->ID)) { |
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return new \WP_REST_Response(['error' => 'Forbidden for this post'], 403); |
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} |
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$blocks = PostBlockFinder::stamp(\parse_blocks($post->post_content)); |
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} |
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|
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$operations = isset($params['operations']) && is_array($params['operations']) |
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? $params['operations'] |
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: []; |
| 75 |
if (!$operations) { |
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return new \WP_REST_Response(['error' => 'operations required'], 400); |
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} |
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|
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$trees = [$post->ID => self::newTree($post, $blocks)]; |
| 80 |
|
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$applied = []; |
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$refused = []; |
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foreach ($operations as $operation) { |
| 84 |
$operation = is_array($operation) ? $operation : []; |
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$op = (string) ($operation['op'] ?? ''); |
| 86 |
$reportKey = $op === 'add' ? 'anchorId' : 'blockId'; |
| 87 |
$reportId = $operation[$reportKey] ?? null; |
| 88 |
|
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$routed = self::route($operation, $trees, $post); |
| 90 |
if (\is_wp_error($routed)) { |
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$refused[] = [$reportKey => $reportId, 'reason' => $routed->get_error_message()]; |
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continue; |
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} |
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$owner = $routed['owner']; |
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$operation = $routed['operation']; |
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$blockId = (int) ($operation['blockId'] ?? 0); |
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|
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if ($op === 'add') { |
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$reason = self::applyAdd( |
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$trees[$owner]['blocks'], |
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(int) ($operation['anchorId'] ?? 0), |
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$operation, |
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$trees[$owner]['wrappers'] |
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); |
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} elseif ($op === 'wrap') { |
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$reason = self::applyWrap( |
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$trees[$owner]['blocks'], |
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$blockId, |
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$operation, |
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$trees[$owner]['wrappers'] |
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); |
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} elseif (in_array($op, ['edit', 'delete', 'move'], true)) { |
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$reason = self::applyOperation($trees[$owner]['blocks'], $op, $blockId, $operation); |
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} else { |
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$reason = 'unknown op'; |
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} |
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|
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if ($reason !== null) { |
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$refused[] = [$reportKey => $reportId, 'reason' => $reason]; |
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continue; |
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} |
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$trees[$owner]['dirty'] = true; |
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$applied[] = ['op' => $op, $reportKey => $reportId, 'owner' => $owner]; |
| 124 |
} |
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|
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$failed = []; |
| 127 |
foreach ($trees as $tree) { |
| 128 |
if (!$tree['dirty']) { |
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continue; |
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} |
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$update = \wp_update_post([ |
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'ID' => $tree['post']->ID, |
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'post_content' => \wp_slash(\serialize_blocks($tree['blocks'])), |
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], true); |
| 135 |
if (\is_wp_error($update)) { |
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$failed[$tree['post']->ID] = $update->get_error_message(); |
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} |
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} |
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|
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// An earlier post is already written, so a failed save reports itself. |
| 141 |
foreach ($applied as $index => $entry) { |
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if (!isset($failed[$entry['owner']])) { |
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continue; |
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} |
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$refused[] = [ |
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'blockId' => $entry['blockId'] ?? ($entry['anchorId'] ?? null), |
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'reason' => $failed[$entry['owner']], |
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]; |
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unset($applied[$index]); |
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} |
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|
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return new \WP_REST_Response([ |
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'applied' => array_values(array_map(function ($entry) { |
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unset($entry['owner']); |
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return $entry; |
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}, $applied)), |
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'refused' => $refused, |
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], 200); |
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} |
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|
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// A composite id names another post, and a splice can't reach across two of |
| 162 |
// them — so an operation whose ids disagree on the owner has nowhere to land. |
| 163 |
private static function route(array $operation, array &$trees, \WP_Post $container) |
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{ |
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$owner = null; |
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foreach (self::ID_FIELDS as $field => $label) { |
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if (!isset($operation[$field])) { |
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continue; |
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} |
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$resolved = TemplatePartBlockFinder::owningPost($operation[$field], $container); |
| 171 |
if ($resolved === null) { |
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return new \WP_Error('not_found', "{$label} not found in this post"); |
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} |
| 174 |
$postId = $resolved['post']->ID; |
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if ($owner !== null && $owner !== $postId) { |
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return new \WP_Error('spans_posts', 'one operation cannot span two posts'); |
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} |
| 178 |
if (!isset($trees[$postId])) { |
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if (!\current_user_can('edit_post', $postId)) { |
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return new \WP_Error('forbidden', 'Forbidden for the post that owns this block'); |
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} |
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$trees[$postId] = self::newTree( |
| 183 |
$resolved['post'], |
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TemplatePartBlockFinder::stamp(\parse_blocks($resolved['post']->post_content)) |
| 185 |
); |
| 186 |
} |
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$owner = $postId; |
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$operation[$field] = $resolved['blockId']; |
| 189 |
} |
| 190 |
|
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return ['owner' => $owner ?? $container->ID, 'operation' => $operation]; |
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} |
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|
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// `wrappers` is per-post: an add can only join a container this same batch |
| 195 |
// created in the same post. |
| 196 |
private static function newTree(\WP_Post $post, array $blocks): array |
| 197 |
{ |
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return ['post' => $post, 'blocks' => $blocks, 'wrappers' => [], 'dirty' => false]; |
| 199 |
} |
| 200 |
|
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// Resolve via WP's own resolver so the save lands on the post WP renders |
| 202 |
// from; no wp_id means an uncustomized theme-file part with nothing to |
| 203 |
// save to. Mirrors QuickEdit's SaveController::resolveSourcePost. |
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private static function resolveTemplatePart(string $slug) |
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{ |
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$stylesheet = \wp_get_theme()->get_stylesheet(); |
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$template = \get_block_template("{$stylesheet}//{$slug}", 'wp_template_part'); |
| 208 |
if (!$template) { |
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return new \WP_Error('not_found', 'Template part not found'); |
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} |
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$post = empty($template->wp_id) ? null : \get_post($template->wp_id); |
| 212 |
if ($post) { |
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return $post; |
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} |
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return self::forkThemeTemplatePart($template, $stylesheet, $slug); |
| 216 |
} |
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|
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// An untouched part has no post, so the first edit has to mint one. |
| 219 |
private static function forkThemeTemplatePart($template, string $stylesheet, string $slug) |
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{ |
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$postId = \wp_insert_post([ |
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'post_type' => 'wp_template_part', |
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'post_name' => $slug, |
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'post_title' => empty($template->title) ? $slug : $template->title, |
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'post_content' => $template->content, |
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'post_status' => 'publish', |
| 227 |
], true); |
| 228 |
if (\is_wp_error($postId)) { |
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return $postId; |
| 230 |
} |
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|
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// Absent the theme term, get_block_template never resolves the fork again. |
| 233 |
\wp_set_object_terms($postId, $stylesheet, 'wp_theme'); |
| 234 |
if (!empty($template->area)) { |
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\wp_set_object_terms($postId, $template->area, 'wp_template_part_area'); |
| 236 |
} |
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|
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$post = \get_post($postId); |
| 239 |
return $post ? $post : new \WP_Error('not_found', 'Template part not found'); |
| 240 |
} |
| 241 |
|
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// Returns null when the op spliced in, or the refusal reason. |
| 243 |
private static function applyOperation(array &$blocks, string $op, int $blockId, array $operation) |
| 244 |
{ |
| 245 |
if ($op === 'edit') { |
| 246 |
$newBlock = self::parseSingleBlock((string) ($operation['block'] ?? '')); |
| 247 |
if (!$newBlock) { |
| 248 |
return 'block must parse to exactly one block'; |
| 249 |
} |
| 250 |
$path = PostBlockFinder::pathByRef($blocks, $blockId); |
| 251 |
if ($path === null) { |
| 252 |
return 'block id not found in this post'; |
| 253 |
} |
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$newBlock = self::carryStamps(self::blockAtPath($blocks, $path), $newBlock); |
| 255 |
$blocks = self::spliceAtPath($blocks, $path, $newBlock); |
| 256 |
return null; |
| 257 |
} |
| 258 |
|
| 259 |
if ($op === 'delete') { |
| 260 |
$path = PostBlockFinder::pathByRef($blocks, $blockId); |
| 261 |
if ($path === null) { |
| 262 |
return 'block id not found in this post'; |
| 263 |
} |
| 264 |
$blocks = self::spliceAtPath($blocks, $path, null); |
| 265 |
return null; |
| 266 |
} |
| 267 |
|
| 268 |
$position = (string) ($operation['position'] ?? ''); |
| 269 |
if (!in_array($position, ['before', 'after'], true)) { |
| 270 |
return "position must be 'before' or 'after'"; |
| 271 |
} |
| 272 |
$targetId = (int) ($operation['targetId'] ?? 0); |
| 273 |
if ($targetId === $blockId) { |
| 274 |
return 'cannot move a block relative to itself'; |
| 275 |
} |
| 276 |
$sourcePath = PostBlockFinder::pathByRef($blocks, $blockId); |
| 277 |
if ($sourcePath === null) { |
| 278 |
return 'block id not found in this post'; |
| 279 |
} |
| 280 |
$targetPath = PostBlockFinder::pathByRef($blocks, $targetId); |
| 281 |
if ($targetPath === null) { |
| 282 |
return 'target block not found in this post'; |
| 283 |
} |
| 284 |
if (array_slice($targetPath, 0, count($sourcePath)) === $sourcePath) { |
| 285 |
return 'target is inside the moved block'; |
| 286 |
} |
| 287 |
|
| 288 |
$moved = self::blockAtPath($blocks, $sourcePath); |
| 289 |
$blocks = self::spliceAtPath($blocks, $sourcePath, null); |
| 290 |
// Extraction shifted indexes; the stamp still finds the target. |
| 291 |
$targetPath = PostBlockFinder::pathByRef($blocks, $targetId); |
| 292 |
$blocks = self::insertAtPath($blocks, $targetPath, $moved, $position); |
| 293 |
return null; |
| 294 |
} |
| 295 |
|
| 296 |
// Returns null when the block spliced in next to its anchor, or the refusal reason. |
| 297 |
private static function applyAdd(array &$blocks, int $anchorId, array $operation, array &$sharedWrappers) |
| 298 |
{ |
| 299 |
$position = (string) ($operation['position'] ?? ''); |
| 300 |
if (!in_array($position, ['before', 'after'], true)) { |
| 301 |
return "position must be 'before' or 'after'"; |
| 302 |
} |
| 303 |
$newBlock = self::parseSingleBlock((string) ($operation['block'] ?? '')); |
| 304 |
if (!$newBlock) { |
| 305 |
return 'block must parse to exactly one block'; |
| 306 |
} |
| 307 |
$anchorPath = PostBlockFinder::pathByRef($blocks, $anchorId); |
| 308 |
if ($anchorPath === null) { |
| 309 |
return 'anchor block not found in this post'; |
| 310 |
} |
| 311 |
// A bare column is only valid as a core/columns child, so its anchor |
| 312 |
// decides the splice here — the code owns the wrapper, never the model. |
| 313 |
if (($newBlock['blockName'] ?? '') === 'core/column') { |
| 314 |
return self::spliceColumn($blocks, $anchorPath, $newBlock, $position, $anchorId, $sharedWrappers); |
| 315 |
} |
| 316 |
$blocks = self::insertAtPath($blocks, $anchorPath, $newBlock, $position); |
| 317 |
return null; |
| 318 |
} |
| 319 |
|
| 320 |
// A pre-existing section never absorbs an add — the only wrapper an add |
| 321 |
// joins is one this same batch created. |
| 322 |
private static function spliceColumn( |
| 323 |
array &$blocks, |
| 324 |
array $anchorPath, |
| 325 |
array $newBlock, |
| 326 |
string $position, |
| 327 |
int $anchorId, |
| 328 |
array &$sharedWrappers |
| 329 |
) { |
| 330 |
if ((self::blockAtPath($blocks, $anchorPath)['blockName'] ?? '') === 'core/column') { |
| 331 |
$blocks = self::insertAtPath($blocks, $anchorPath, $newBlock, $position); |
| 332 |
return null; |
| 333 |
} |
| 334 |
|
| 335 |
$key = $anchorId . ':' . $position; |
| 336 |
if (isset($sharedWrappers[$key])) { |
| 337 |
$wrapperPath = PostBlockFinder::pathByRef($blocks, $sharedWrappers[$key]); |
| 338 |
$wrapper = self::blockAtPath($blocks, $wrapperPath); |
| 339 |
$lastChild = array_merge($wrapperPath, ['innerBlocks', count($wrapper['innerBlocks']) - 1]); |
| 340 |
$blocks = self::insertAtPath($blocks, $lastChild, $newBlock, 'after'); |
| 341 |
return null; |
| 342 |
} |
| 343 |
|
| 344 |
$wrapper = self::parseSingleBlock( |
| 345 |
'<!-- wp:columns --><div class="wp-block-columns">' |
| 346 |
. '<!-- wp:paragraph --><p></p><!-- /wp:paragraph -->' |
| 347 |
. '</div><!-- /wp:columns -->' |
| 348 |
); |
| 349 |
$wrapper['innerBlocks'][0] = $newBlock; |
| 350 |
// Render stamps are positive, so a negative ref can't collide. |
| 351 |
$wrapper[PostBlockFinder::REF_KEY] = -(count($sharedWrappers) + 1); |
| 352 |
$sharedWrappers[$key] = $wrapper[PostBlockFinder::REF_KEY]; |
| 353 |
$blocks = self::insertAtPath($blocks, $anchorPath, $wrapper, $position); |
| 354 |
return null; |
| 355 |
} |
| 356 |
|
| 357 |
// Returns null when the container spliced in around the block, or the |
| 358 |
// refusal reason. The wrapped subtree is reused verbatim — bytes and id |
| 359 |
// stamps survive, so later ops in the batch can still anchor to it. |
| 360 |
private static function applyWrap(array &$blocks, int $blockId, array $operation, array &$sharedWrappers) |
| 361 |
{ |
| 362 |
$container = (string) ($operation['container'] ?? ''); |
| 363 |
if (!isset(self::WRAP_TEMPLATES[$container])) { |
| 364 |
return 'unknown container'; |
| 365 |
} |
| 366 |
$path = PostBlockFinder::pathByRef($blocks, $blockId); |
| 367 |
if ($path === null) { |
| 368 |
return 'block id not found in this post'; |
| 369 |
} |
| 370 |
$block = self::blockAtPath($blocks, $path); |
| 371 |
// Pulling a column out of core/columns leaves the parent unserializable. |
| 372 |
if (($block['blockName'] ?? '') === 'core/column') { |
| 373 |
return 'a column cannot be wrapped'; |
| 374 |
} |
| 375 |
$isColumn = $container === 'core/column'; |
| 376 |
if ($isColumn && self::joinWrapShell($blocks, $path, $block, $blockId, $sharedWrappers)) { |
| 377 |
return null; |
| 378 |
} |
| 379 |
$wrapper = self::parseSingleBlock(self::WRAP_TEMPLATES[$container]); |
| 380 |
if ($container === 'core/column') { |
| 381 |
$wrapper['innerBlocks'][0]['innerBlocks'][0] = $block; |
| 382 |
// "Wrap this in a column and add another beside it": a later |
| 383 |
// column add anchored to the wrapped block joins this wrapper. |
| 384 |
$wrapper[PostBlockFinder::REF_KEY] = -(count($sharedWrappers) + 1); |
| 385 |
$sharedWrappers[$blockId . ':after'] = $wrapper[PostBlockFinder::REF_KEY]; |
| 386 |
$sharedWrappers[$blockId . ':before'] = $wrapper[PostBlockFinder::REF_KEY]; |
| 387 |
$sharedWrappers['wrap-shell'] = $wrapper[PostBlockFinder::REF_KEY]; |
| 388 |
} else { |
| 389 |
$wrapper['innerBlocks'][0] = $block; |
| 390 |
} |
| 391 |
$blocks = self::spliceAtPath($blocks, $path, $wrapper); |
| 392 |
return null; |
| 393 |
} |
| 394 |
|
| 395 |
// Two column wraps in one batch mean side by side — join the first shell. |
| 396 |
private static function joinWrapShell( |
| 397 |
array &$blocks, |
| 398 |
array $path, |
| 399 |
array $block, |
| 400 |
int $blockId, |
| 401 |
array &$sharedWrappers |
| 402 |
) { |
| 403 |
if (!isset($sharedWrappers['wrap-shell'])) { |
| 404 |
return false; |
| 405 |
} |
| 406 |
$shellRef = $sharedWrappers['wrap-shell']; |
| 407 |
$shellPath = PostBlockFinder::pathByRef($blocks, $shellRef); |
| 408 |
// A shell inside the wrapped block would leave with it — start fresh. |
| 409 |
if ($shellPath === null || array_slice($shellPath, 0, count($path)) === $path) { |
| 410 |
return false; |
| 411 |
} |
| 412 |
$blocks = self::spliceAtPath($blocks, $path, null); |
| 413 |
$shellPath = PostBlockFinder::pathByRef($blocks, $shellRef); |
| 414 |
$shell = self::blockAtPath($blocks, $shellPath); |
| 415 |
$column = self::parseSingleBlock( |
| 416 |
'<!-- wp:column --><div class="wp-block-column">' |
| 417 |
. '<!-- wp:paragraph --><p></p><!-- /wp:paragraph -->' |
| 418 |
. '</div><!-- /wp:column -->' |
| 419 |
); |
| 420 |
$column['innerBlocks'][0] = $block; |
| 421 |
$lastChild = array_merge($shellPath, ['innerBlocks', count($shell['innerBlocks']) - 1]); |
| 422 |
$blocks = self::insertAtPath($blocks, $lastChild, $column, 'after'); |
| 423 |
$sharedWrappers[$blockId . ':after'] = $shellRef; |
| 424 |
$sharedWrappers[$blockId . ':before'] = $shellRef; |
| 425 |
return true; |
| 426 |
} |
| 427 |
|
| 428 |
private static function blockAtPath(array $blocks, array $path) |
| 429 |
{ |
| 430 |
$node = $blocks; |
| 431 |
foreach ($path as $key) { |
| 432 |
$node = $node[$key]; |
| 433 |
} |
| 434 |
return $node; |
| 435 |
} |
| 436 |
|
| 437 |
// Position can't tell an untouched child from a swapped one. |
| 438 |
private static function carryStamps(array $old, array $new): array |
| 439 |
{ |
| 440 |
if (isset($old[PostBlockFinder::REF_KEY])) { |
| 441 |
$new[PostBlockFinder::REF_KEY] = $old[PostBlockFinder::REF_KEY]; |
| 442 |
} |
| 443 |
$oldInner = isset($old['innerBlocks']) && is_array($old['innerBlocks']) |
| 444 |
? $old['innerBlocks'] |
| 445 |
: []; |
| 446 |
$newInner = isset($new['innerBlocks']) && is_array($new['innerBlocks']) |
| 447 |
? $new['innerBlocks'] |
| 448 |
: []; |
| 449 |
foreach ($newInner as $i => $child) { |
| 450 |
if (!isset($oldInner[$i]) || !is_array($oldInner[$i]) || !is_array($child)) { |
| 451 |
continue; |
| 452 |
} |
| 453 |
if (\serialize_blocks([$oldInner[$i]]) !== \serialize_blocks([$child])) { |
| 454 |
continue; |
| 455 |
} |
| 456 |
$newInner[$i] = self::carryStamps($oldInner[$i], $child); |
| 457 |
} |
| 458 |
if ($newInner) { |
| 459 |
$new['innerBlocks'] = $newInner; |
| 460 |
} |
| 461 |
return $new; |
| 462 |
} |
| 463 |
|
| 464 |
private static function parseSingleBlock(string $markup) |
| 465 |
{ |
| 466 |
$parsed = array_values(array_filter( |
| 467 |
\parse_blocks($markup), |
| 468 |
static function ($block) { |
| 469 |
return is_array($block) && !empty($block['blockName']); |
| 470 |
} |
| 471 |
)); |
| 472 |
return count($parsed) === 1 ? $parsed[0] : null; |
| 473 |
} |
| 474 |
|
| 475 |
// Path elements alternate index / 'innerBlocks' / …; null deletes. |
| 476 |
private static function spliceAtPath(array $list, array $path, $newBlock): array |
| 477 |
{ |
| 478 |
$head = ($path[0] ?? null); |
| 479 |
if (!is_int($head) || !isset($list[$head])) { |
| 480 |
return $list; |
| 481 |
} |
| 482 |
|
| 483 |
$rest = array_slice($path, 1); |
| 484 |
if (!$rest) { |
| 485 |
if ($newBlock === null) { |
| 486 |
array_splice($list, $head, 1); |
| 487 |
} else { |
| 488 |
$list[$head] = $newBlock; |
| 489 |
} |
| 490 |
return $list; |
| 491 |
} |
| 492 |
|
| 493 |
if ($rest[0] !== 'innerBlocks') { |
| 494 |
return $list; |
| 495 |
} |
| 496 |
|
| 497 |
$childPath = array_slice($rest, 1); |
| 498 |
$inner = isset($list[$head]['innerBlocks']) && is_array($list[$head]['innerBlocks']) |
| 499 |
? $list[$head]['innerBlocks'] |
| 500 |
: []; |
| 501 |
|
| 502 |
// Drop the child's innerContent placeholder too, or serialize_blocks |
| 503 |
// misaligns the remaining children. |
| 504 |
if ($newBlock === null && count($childPath) === 1) { |
| 505 |
$innerContent = isset($list[$head]['innerContent']) && is_array($list[$head]['innerContent']) |
| 506 |
? $list[$head]['innerContent'] |
| 507 |
: []; |
| 508 |
$list[$head]['innerContent'] = self::withoutNthPlaceholder($innerContent, $childPath[0]); |
| 509 |
} |
| 510 |
|
| 511 |
$list[$head]['innerBlocks'] = self::spliceAtPath($inner, $childPath, $newBlock); |
| 512 |
return $list; |
| 513 |
} |
| 514 |
|
| 515 |
private static function withoutNthPlaceholder(array $innerContent, int $n): array |
| 516 |
{ |
| 517 |
$seen = -1; |
| 518 |
foreach ($innerContent as $i => $chunk) { |
| 519 |
if (is_string($chunk)) { |
| 520 |
continue; |
| 521 |
} |
| 522 |
$seen++; |
| 523 |
if ($seen === $n) { |
| 524 |
array_splice($innerContent, $i, 1); |
| 525 |
break; |
| 526 |
} |
| 527 |
} |
| 528 |
return $innerContent; |
| 529 |
} |
| 530 |
|
| 531 |
private static function insertAtPath(array $list, array $path, array $block, string $position): array |
| 532 |
{ |
| 533 |
$head = ($path[0] ?? null); |
| 534 |
if (!is_int($head) || !isset($list[$head])) { |
| 535 |
return $list; |
| 536 |
} |
| 537 |
|
| 538 |
$rest = array_slice($path, 1); |
| 539 |
if (!$rest) { |
| 540 |
array_splice($list, $head + ($position === 'after' ? 1 : 0), 0, [$block]); |
| 541 |
return $list; |
| 542 |
} |
| 543 |
|
| 544 |
if ($rest[0] !== 'innerBlocks') { |
| 545 |
return $list; |
| 546 |
} |
| 547 |
|
| 548 |
$childPath = array_slice($rest, 1); |
| 549 |
// Mirror the delete case: a new child needs its innerContent |
| 550 |
// placeholder too, or serialize_blocks misaligns the children. |
| 551 |
if (count($childPath) === 1) { |
| 552 |
$innerContent = isset($list[$head]['innerContent']) && is_array($list[$head]['innerContent']) |
| 553 |
? $list[$head]['innerContent'] |
| 554 |
: []; |
| 555 |
$list[$head]['innerContent'] = self::withPlaceholderAt( |
| 556 |
$innerContent, |
| 557 |
$childPath[0] + ($position === 'after' ? 1 : 0) |
| 558 |
); |
| 559 |
} |
| 560 |
|
| 561 |
$inner = isset($list[$head]['innerBlocks']) && is_array($list[$head]['innerBlocks']) |
| 562 |
? $list[$head]['innerBlocks'] |
| 563 |
: []; |
| 564 |
$list[$head]['innerBlocks'] = self::insertAtPath($inner, $childPath, $block, $position); |
| 565 |
return $list; |
| 566 |
} |
| 567 |
|
| 568 |
// Inserts a null so it becomes the nth placeholder; past the last one it |
| 569 |
// lands right after it, before any trailing closing markup. |
| 570 |
private static function withPlaceholderAt(array $innerContent, int $n): array |
| 571 |
{ |
| 572 |
$seen = -1; |
| 573 |
foreach ($innerContent as $i => $chunk) { |
| 574 |
if (is_string($chunk)) { |
| 575 |
continue; |
| 576 |
} |
| 577 |
$seen++; |
| 578 |
if ($seen === $n) { |
| 579 |
array_splice($innerContent, $i, 0, [null]); |
| 580 |
return $innerContent; |
| 581 |
} |
| 582 |
} |
| 583 |
for ($i = count($innerContent) - 1; $i >= 0; $i--) { |
| 584 |
if (!is_string($innerContent[$i])) { |
| 585 |
array_splice($innerContent, $i + 1, 0, [null]); |
| 586 |
return $innerContent; |
| 587 |
} |
| 588 |
} |
| 589 |
$innerContent[] = null; |
| 590 |
return $innerContent; |
| 591 |
} |
| 592 |
} |
| 593 |
|
