feat: Divi tree editor and quality warnings

TreeEditor (position/insert/move/remove/duplicate on the BlockTree) and
Warnings (post-write quality checks), plus S18's outline breadth limit
on the 2a Outline/DiviOutlineAbility.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01At3V6SjwbMe6eMzVGW3Hs7
This commit is contained in:
2026-09-26 14:42:26 +02:00
co-authored by Claude Opus 5.5
parent 8688a02402
commit ea1fd607b2
8 changed files with 791 additions and 7 deletions
@@ -0,0 +1,165 @@
<?php
declare(strict_types=1);
namespace LIT\MCP\Integrations\Divi\Compose;
use LIT\MCP\Integrations\Divi\BlockTree\Block;
use LIT\MCP\Integrations\Divi\BlockTree\Container;
use LIT\MCP\Integrations\Divi\BlockTree\Document;
use LIT\MCP\Integrations\Divi\BlockTree\NodeIndex;
/**
* Structural changes on a parsed page (spec §5.7): where to insert (parent / before / after,
* optional index), move, remove, duplicate – always checked against StructureRules. Works on
* the tree only; saving is DiviWriter's job. Pure PHP.
*/
final class TreeEditor
{
public function __construct(private StructureRules $rules)
{
}
/**
* Resolves a target position: exactly one of parent, before, after; index only with parent.
* No position at all means "end of the page".
*
* @param array<string, mixed> $input
* @return array{container: Container, parent: ?Block, index: int}|string Position or German error.
*/
public function position(NodeIndex $index, array $input): array|string
{
$given = array_filter(
[
'parent' => $input['parent'] ?? null,
'before' => $input['before'] ?? null,
'after' => $input['after'] ?? null,
],
static fn (mixed $value): bool => is_string($value) && $value !== ''
);
if (count($given) > 1) {
return 'nur eines von parent, before oder after angeben';
}
$at = isset($input['index']) && is_int($input['index']) ? max(0, $input['index']) : PHP_INT_MAX;
if ($given === []) {
return ['container' => $index->root(), 'parent' => null, 'index' => $at];
}
$key = (string) array_key_first($given);
$node = $index->find((string) $given[$key]);
if ($node === null) {
return sprintf('Knoten "%s" gibt es nicht', (string) $given[$key]);
}
if ($key === 'parent') {
return ['container' => $node, 'parent' => $node, 'index' => $at];
}
$container = $index->parentOf($node);
if ($container === null) {
return sprintf('Knoten "%s" hat keinen Elternknoten', (string) $given[$key]);
}
$sibling = (int) $container->indexOf($node);
return [
'container' => $container,
'parent' => $container instanceof Block && $container->name() !== 'divi/placeholder' ? $container : null,
'index' => $key === 'before' ? $sibling : $sibling + 1,
];
}
/**
* @param array{container: Container, parent: ?Block, index: int} $position
* @param list<Block> $blocks
*/
public function insert(array $position, array $blocks): ?string
{
foreach ($blocks as $block) {
$violation = $this->rules->violation($position['parent'], $block->name());
if ($violation !== null) {
return $violation;
}
}
$container = $this->targetContainer($position['container']);
$start = $position['index'];
foreach (array_values($blocks) as $offset => $block) {
$at = $start === PHP_INT_MAX ? PHP_INT_MAX : $start + $offset;
$container->insertChild($at, $block);
}
return null;
}
/** @param array{container: Container, parent: ?Block, index: int} $position */
public function move(NodeIndex $index, Block $node, array $position): ?string
{
for ($ancestor = $position['parent']; $ancestor !== null; $ancestor = $this->parentBlock($index, $ancestor)) {
if ($ancestor === $node) {
return 'ein Knoten kann nicht in sich selbst verschoben werden';
}
}
$violation = $this->rules->violation($position['parent'], $node->name());
if ($violation !== null) {
return $violation;
}
$from = $index->parentOf($node);
if ($from === null) {
return 'der Knoten hat keinen Elternknoten';
}
$old = $from->removeChild($node);
$target = $position['index'];
if ($from === $position['container'] && $target !== PHP_INT_MAX && $old < $target) {
--$target;
}
$position['container']->insertChild($target, $node);
return null;
}
public function remove(NodeIndex $index, Block $node): void
{
$index->parentOf($node)?->removeChild($node);
}
/** Inserts a copy right after $node and returns it. Never touches $node or the copy afterwards. */
public function duplicate(NodeIndex $index, Block $node): Block
{
$copy = $node->copy();
$container = $index->parentOf($node);
if ($container !== null) {
$container->insertChild((int) $container->indexOf($node) + 1, $copy);
}
return $copy;
}
private function parentBlock(NodeIndex $index, Block $block): ?Block
{
$parent = $index->parentOf($block);
return $parent instanceof Block && $parent->name() !== 'divi/placeholder' ? $parent : null;
}
/**
* Ruling S9: inserting at the document root of an empty page (no divi/placeholder yet)
* first wraps it in one, the same way DiviContentComposer (Task 9) writes new content –
* so a first-section page gets the structure the Visual Builder itself writes.
*/
private function targetContainer(Container $container): Container
{
if (! $container instanceof Document || $container->children() !== []) {
return $container;
}
$placeholder = Block::create('divi/placeholder');
$container->insertChild(0, $placeholder);
return $placeholder;
}
}
+269
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@@ -0,0 +1,269 @@
<?php
declare(strict_types=1);
namespace LIT\MCP\Integrations\Divi\Compose;
use LIT\MCP\Integrations\Divi\BlockTree\AttrMap;
use LIT\MCP\Integrations\Divi\BlockTree\Block;
use LIT\MCP\Integrations\Divi\BlockTree\NodeIndex;
use LIT\MCP\Integrations\Divi\BlockTree\NodeSummary;
use LIT\MCP\Integrations\Divi\Design\DesignSystem;
use LIT\MCP\Integrations\Divi\Schema\ShortformMap;
/**
* Quality warnings of a Divi write (spec §5.5) – only about the nodes this call created or
* changed (and their children): fixed colors/fonts where a global one fits, images without
* alt text, empty modules, heading jumps, the code module. Similar existing sections
* (lit/library-find-similar) follow with the Library in Etappe 3. Pure PHP.
*/
final class Warnings
{
/** RGB distance up to which a fixed color counts as "the same" as a global color. */
private const SIMILAR = 24.0;
/** Default heading level per module (Divi's default render attributes). */
private const HEADING_DEFAULTS = ['divi/heading' => 1, 'divi/blurb' => 4, 'divi/cta' => 2];
private const IMAGE_SOURCES = [
'divi/image' => ['image.innerContent', 'src', 'alt'],
'divi/blurb' => ['imageIcon.innerContent', 'src', 'alt'],
'divi/slide' => ['image.innerContent', 'src', 'alt'],
];
public function __construct(private DesignSystem $design)
{
}
/**
* @param list<Block> $touched Created or changed blocks (their descendants count too).
* @return list<string>
*/
public function collect(NodeIndex $index, array $touched): array
{
$blocks = [];
foreach ($touched as $block) {
foreach ($this->withDescendants($block) as $node) {
$blocks[spl_object_id($node)] = $node;
}
}
$warnings = [];
foreach ($blocks as $block) {
$id = $index->idOf($block) ?? '?';
array_push(
$warnings,
...$this->code($block, $id),
...$this->image($block, $id),
...$this->empty($block, $id),
...$this->fixedValues($block, $id)
);
}
return array_values(array_unique(array_merge($warnings, $this->headings($index, $blocks))));
}
/**
* Opaque blocks (global modules) are never descended into – their content is edited only in
* the Divi Builder (Etappe 3), so no warning ever looks inside one.
*
* @return list<Block>
*/
private function withDescendants(Block $block): array
{
$all = [$block];
if (! $block->isOpaque()) {
foreach ($block->children() as $child) {
array_push($all, ...$this->withDescendants($child));
}
}
return $all;
}
/** @return list<string> */
private function code(Block $block, string $id): array
{
return in_array($block->name(), ['divi/code', 'divi/fullwidth-code'], true)
? [sprintf('%s: Code-Modul verwendet – im Divi-Builder nicht visuell bearbeitbar; nur nutzen, wenn kein '
. 'natives Modul passt.', $id)]
: [];
}
/** @return list<string> */
private function image(Block $block, string $id): array
{
$spec = self::IMAGE_SOURCES[$block->name()] ?? null;
if ($spec === null) {
return [];
}
$value = AttrMap::desktop($block->attrs(), $spec[0]);
$src = is_array($value) ? ($value[$spec[1]] ?? '') : '';
$alt = is_array($value) ? ($value[$spec[2]] ?? '') : '';
return is_string($src) && $src !== '' && (! is_string($alt) || trim($alt) === '')
? [sprintf('%s: Bild ohne Alt-Text.', $id)]
: [];
}
/** @return list<string> */
private function empty(Block $block, string $id): array
{
$name = $block->name();
if (in_array($name, ['divi/section', 'divi/row', 'divi/column', 'divi/group'], true)) {
return $block->children() === [] ? [sprintf('%s: leer (%s ohne Inhalt).', $id, $block->shortName())] : [];
}
$type = $block->shortName();
if (ShortformMap::childType($type) !== null && $block->children() === []) {
return [sprintf('%s: %s ohne Einträge.', $id, $type)];
}
$primary = ShortformMap::primary($type);
if ($primary === null || ShortformMap::childType($type) !== null) {
return [];
}
$values = ShortformMap::values($type, $block->attrs());
$value = $values[$primary] ?? '';
return NodeSummary::textOf($value) === '' ? [sprintf('%s: %s ist leer (%s fehlt).', $id, $type, $primary)] : [];
}
/** @return list<string> */
private function fixedValues(Block $block, string $id): array
{
$warnings = [];
$fonts = array_filter($this->design->fonts());
foreach ($this->leaves($block->attrs()) as [$key, $value]) {
if (preg_match('/^#([0-9a-f]{3}|[0-9a-f]{6})$/i', trim($value)) === 1) {
$match = $this->similarColor($value);
if ($match !== null) {
$warnings[] = sprintf(
'%s: feste Farbe %s – globale Farbe "%s" (%s) passt.',
$id,
$value,
$match['label'],
DesignSystem::colorPlaceholder($match['id'], $match['label'])
);
}
} elseif ($key === 'family') {
$font = array_search(mb_strtolower(trim($value)), array_map('mb_strtolower', $fonts), true);
if ($font !== false) {
$warnings[] = sprintf('%s: feste Schrift %s – {{font:%s}} verwenden.', $id, $value, $font);
}
}
}
return $warnings;
}
/**
* Heading jumps (h2 → h4) in page order where the later heading belongs to a touched block.
*
* @param array<int, Block> $touched
* @return list<string>
*/
private function headings(NodeIndex $index, array $touched): array
{
$warnings = [];
$previous = null;
foreach ($index->entries() as $entry) {
$block = $entry['block'];
foreach ($this->levels($block) as $level) {
if ($previous !== null && $level > $previous + 1 && isset($touched[spl_object_id($block)])) {
$warnings[] = sprintf(
'%s: Sprung in der Überschriftenhierarchie (h%d nach h%d).',
$entry['id'],
$level,
$previous
);
}
$previous = $level;
}
}
return $warnings;
}
/** @return list<int> Heading levels a block renders, in order. */
private function levels(Block $block): array
{
$default = self::HEADING_DEFAULTS[$block->name()] ?? null;
if ($default !== null) {
$font = AttrMap::desktop($block->attrs(), 'title.decoration.font.font');
$level = is_array($font) && is_string($font['headingLevel'] ?? null)
? $font['headingLevel']
: 'h' . $default;
return [(int) substr($level, 1)];
}
if ($block->name() === 'divi/text') {
$html = AttrMap::desktop($block->attrs(), 'content.innerContent');
preg_match_all('/<h([1-6])\b/i', is_string($html) ? $html : '', $matches);
return array_map('intval', $matches[1]);
}
return [];
}
/** @return array{id: string, label: string, value: string}|null */
private function similarColor(string $hex): ?array
{
$rgb = self::rgb($hex);
foreach ($this->design->colors() as $color) {
$other = self::rgb($color['value']);
if ($rgb !== null && $other !== null && self::distance($rgb, $other) <= self::SIMILAR) {
return $color;
}
}
return null;
}
/**
* @param array<array-key, mixed> $values
* @return list<array{0: string, 1: string}> [last key, value] of every string leaf (Divi
* references excluded – a fixed value that references a global one is not "fixed").
*/
private function leaves(array $values): array
{
$leaves = [];
foreach ($values as $name => $value) {
if (is_array($value)) {
array_push($leaves, ...$this->leaves($value));
} elseif (is_string($value) && ! VariableRef::contains($value)) {
$leaves[] = [(string) $name, $value];
}
}
return $leaves;
}
/** @return array{int, int, int}|null */
private static function rgb(string $hex): ?array
{
$hex = ltrim(trim($hex), '#');
if (preg_match('/^([0-9a-f]{3}|[0-9a-f]{6})$/i', $hex) !== 1) {
return null;
}
if (strlen($hex) === 3) {
$hex = $hex[0] . $hex[0] . $hex[1] . $hex[1] . $hex[2] . $hex[2];
}
return [(int) hexdec(substr($hex, 0, 2)), (int) hexdec(substr($hex, 2, 2)), (int) hexdec(substr($hex, 4, 2))];
}
/**
* @param array{int, int, int} $a
* @param array{int, int, int} $b
*/
private static function distance(array $a, array $b): float
{
return sqrt(($a[0] - $b[0]) ** 2 + ($a[1] - $b[1]) ** 2 + ($a[2] - $b[2]) ** 2);
}
}