feat: Divi composer – short/full form to blocks with structure rules, presets and labels
Labels, background_color and preset ids go through the choke point (S13); ambiguous preset names fail with their ids (S13a); fullwidth + rows is an error. Carry-ins: control characters stripped before the marker check (S32), kind override may only tighten, reference alt texts dropped, color check via VariableRef::typeOf (S33). 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:
Claude Opus 5.5
@@ -0,0 +1,548 @@
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<?php
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declare(strict_types=1);
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namespace LIT\MCP\Integrations\Divi\Compose;
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use InvalidArgumentException;
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use LIT\MCP\Integrations\Divi\BlockTree\AttrMap;
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use LIT\MCP\Integrations\Divi\BlockTree\Block;
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use LIT\MCP\Integrations\Divi\Design\DesignSystem;
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use LIT\MCP\Integrations\Divi\Schema\ModuleCatalog;
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use LIT\MCP\Integrations\Divi\Schema\ShortformMap;
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/**
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* Builds new Divi blocks from node descriptions (spec §5.4): short form, full form ("attrs")
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* or both; sections with rows ("columns": "1_3,2_3") and modules; parent modules with
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* "items"; presets by name; automatic admin labels "<Abschnitt> – <Modul>" (spec §5.5).
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* Every error is collected with its input path; blocks are only usable when there are none.
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* Pure PHP.
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*
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* Divi saves bypass kses (D7): every client string reaches the attributes only through
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* ShortformWriter / AttrWriter::cleanValue() (the single choke point) – short-form fields,
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* full-form attrs, admin labels, background_color (ShortformWriter::color(), ruling S13) and
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* preset ids. A value that fails there is an error, never stored raw (S13). What Composer
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* writes itself is not client text: the builder version (checked in the constructor), block
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* names (catalog + StructureRules + Block::create), "fullwidth" and column flexTypes built
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* from digits. Design-system names that match several entries are errors listing the ids
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* (ruling S13a: colors/variables in Placeholders, presets here).
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*/
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final class Composer
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{
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private const COMMON = ['type', 'label', 'preset', 'attrs'];
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private const SECTION = ['section_type', 'background_color', 'rows', 'modules'];
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private const ROW = ['columns', 'modules'];
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/** Keys of one lit-divi-update change ("id" names the node, read by the ability). */
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private const UPDATE = ['id', 'set', 'attrs', 'preset', 'label'];
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/** Column fractions Divi's flex layout knows besides multiples of 1/24. */
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private const SPECIAL_WIDTHS = ['1_5', '2_5', '3_5', '4_5', '1_7', '1_9', '1_10', '1_11'];
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/** ET_BUILDER_PRODUCT_VERSION, e.g. "5.2.1" – written into every new block. */
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private const VERSION = '/^[0-9][0-9A-Za-z.+-]*$/D';
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private const LABEL_PATH = 'module.meta.adminLabel';
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/** @var array<string, string> */
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private array $errors = [];
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/** @var list<string> */
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private array $invalidPaths = [];
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/** @throws InvalidArgumentException When $builderVersion is no version number. */
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public function __construct(
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private ModuleCatalog $catalog,
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private StructureRules $rules,
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private ShortformWriter $shortform,
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private AttrWriter $attrWriter,
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private DesignSystem $design,
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private string $builderVersion
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) {
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if (preg_match(self::VERSION, $builderVersion) !== 1) {
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throw new InvalidArgumentException(sprintf('"%s" is not a Divi builder version.', $builderVersion));
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}
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}
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/**
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* @param array<array-key, mixed> $specs Node descriptions.
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* @param Block|null $parent Block the nodes go into (null = top level of the page).
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* @param string $field Input path of $specs for error keys, e.g. "nodes".
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* @param string $context Admin label of the surrounding section ("" if none).
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* @return array{blocks: list<Block>, errors: array<string, string>, invalid_paths: list<string>}
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*/
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public function compose(array $specs, ?Block $parent, string $field, string $context = ''): array
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{
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$this->errors = [];
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$this->invalidPaths = [];
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$blocks = [];
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foreach (array_values($specs) as $position => $spec) {
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$block = $this->node($spec, $parent, sprintf('%s[%d]', $field, $position), $context);
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if ($block !== null) {
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$blocks[] = $block;
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}
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}
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return ['blocks' => $blocks, 'errors' => $this->errors, 'invalid_paths' => $this->invalidPaths];
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}
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/**
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* Applies short-form fields ("set"), full-form attrs, preset and label to an existing block
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* (lit-divi-update); errors like compose(). The block itself is not changed – the caller
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* sets the returned attrs. "preset": null and "label": null remove them.
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*
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* @param array<array-key, mixed> $change id, set, attrs, preset, label
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* @return array{attrs: array<string, mixed>, errors: array<string, string>, invalid_paths: list<string>}
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*/
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public function update(Block $block, array $change, string $field): array
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{
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$this->errors = [];
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$this->invalidPaths = [];
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$attrs = $block->attrs();
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if (! $block->isDivi() || $block->isOpaque()) {
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$this->errors[$field . '.id'] = 'nur lesbar (globales Modul oder fremder Block)';
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return ['attrs' => $attrs, 'errors' => $this->errors, 'invalid_paths' => []];
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}
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$this->unknownKeys($change, self::UPDATE, $field);
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if (array_key_exists('set', $change)) {
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if (! is_array($change['set']) || $change['set'] === [] || array_is_list($change['set'])) {
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$this->errors[$field . '.set'] = 'Objekt mit Kurzform-Feldern erwartet';
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} else {
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$result = $this->shortform->apply($block->shortName(), $attrs, $change['set'], $field . '.set');
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$attrs = $result['attrs'];
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$this->errors += $result['errors'];
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}
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}
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$attrs = $this->presetAndAttrs($block->name(), $attrs, $change, $field);
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if (array_key_exists('label', $change)) {
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$attrs = $change['label'] === null || $change['label'] === ''
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? AttrMap::remove($attrs, self::LABEL_PATH)
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: $this->label($block->name(), $attrs, $change['label'], $field . '.label');
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}
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return ['attrs' => $attrs, 'errors' => $this->errors, 'invalid_paths' => $this->invalidPaths];
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}
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/** Admin label for a new module: "<Abschnitt> – <Modultitel>" or the title alone. */
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public function autoLabel(string $name, string $context): string
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{
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$title = $this->catalog->title($name);
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return $context === '' ? $title : $context . ' – ' . $title;
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}
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private function node(mixed $spec, ?Block $parent, string $path, string $context): ?Block
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{
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if (! is_array($spec) || array_is_list($spec)) {
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$this->errors[$path] = 'Objekt mit "type" erwartet';
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return null;
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}
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$type = $this->typeOf($spec, $parent);
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if ($type === null) {
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$this->errors[$path . '.type'] = 'type fehlt';
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return null;
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}
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$violation = $this->rules->violation($parent, $type);
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if ($violation !== null) {
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$this->errors[$path . '.type'] = $violation;
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return null;
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}
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return match ($type) {
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'divi/section' => $this->section($spec, $path),
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'divi/row' => $this->row($spec, $path, $context),
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default => $this->module($type, $spec, $path, $context),
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};
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}
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/** @param array<array-key, mixed> $spec */
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private function typeOf(array $spec, ?Block $parent): ?string
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{
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if (is_string($spec['type'] ?? null) && trim($spec['type']) !== '') {
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return ModuleCatalog::normalize($spec['type']);
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}
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if (array_key_exists('type', $spec)) {
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return null;
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}
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$children = $parent === null ? [] : $this->catalog->childrenOf($parent->name());
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return count($children) === 1 ? $children[0] : null;
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}
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/** @param array<array-key, mixed> $spec */
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private function section(array $spec, string $path): Block
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{
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$this->unknownKeys($spec, array_merge(self::COMMON, self::SECTION), $path);
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$type = $spec['section_type'] ?? 'regular';
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$attrs = ['builderVersion' => $this->builderVersion];
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if ($type === 'fullwidth') {
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$attrs = AttrMap::set($attrs, 'module.advanced.type', ['desktop' => ['value' => 'fullwidth']]);
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} elseif ($type !== 'regular') {
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$this->errors[$path . '.section_type'] = 'regular oder fullwidth erwartet (specialty nur im Divi-Builder)';
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}
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if (array_key_exists('background_color', $spec)) {
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$attrs = $this->backgroundColor($attrs, $spec['background_color'], $path . '.background_color');
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}
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$attrs = $this->common('divi/section', $attrs, $spec, $path, null);
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$label = AttrMap::desktop($attrs, self::LABEL_PATH);
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$context = is_string($label) ? $label : '';
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$section = Block::create('divi/section', $attrs);
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$hasRows = array_key_exists('rows', $spec);
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$hasModules = array_key_exists('modules', $spec);
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if ($type === 'fullwidth') {
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if ($hasRows) {
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$this->errors[$path . '.rows'] = 'ein Vollbreite-Abschnitt (section_type fullwidth) hat keine Zeilen; '
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. 'fullwidth-Module unter "modules" angeben';
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}
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$this->children($section, $spec['modules'] ?? [], $path . '.modules', $context);
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} elseif ($hasRows && $hasModules) {
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$this->errors[$path] = 'entweder rows oder modules angeben';
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} elseif ($hasModules) {
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$this->children($section, [['type' => 'row', 'modules' => $spec['modules']]], $path . '.modules', $context);
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} else {
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$this->children($section, $spec['rows'] ?? [], $path . '.rows', $context);
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}
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return $section;
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}
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/** @param array<array-key, mixed> $spec */
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private function row(array $spec, string $path, string $context): Block
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{
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$this->unknownKeys($spec, array_merge(self::COMMON, self::ROW), $path);
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$widths = $this->widths($spec['columns'] ?? '4_4', $path . '.columns');
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$label = $context === '' ? null : $context . ' – Zeile';
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$attrs = $this->common('divi/row', ['builderVersion' => $this->builderVersion], $spec, $path, $label);
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$row = Block::create('divi/row', $attrs);
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$modules = $spec['modules'] ?? [];
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if (! is_array($modules) || ! array_is_list($modules)) {
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$this->errors[$path . '.modules'] = 'Liste erwartet (je Spalte eine Liste von Modulen)';
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$modules = [];
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}
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// One column: a flat list of modules is accepted.
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$first = $modules[0] ?? null;
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if (count($widths) === 1 && is_array($first) && ! array_is_list($first)) {
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$modules = [$modules];
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}
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if (count($modules) > count($widths)) {
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$this->errors[$path . '.modules'] = sprintf(
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'%d Spalten, aber %d Modul-Listen',
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count($widths),
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count($modules)
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);
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}
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foreach ($widths as $position => $width) {
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$column = Block::create('divi/column', AttrMap::set(
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['builderVersion' => $this->builderVersion],
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'module.decoration.sizing',
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['desktop' => ['value' => ['flexType' => $width]]]
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));
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$row->insertChild($position, $column);
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$this->children($column, $modules[$position] ?? [], sprintf('%s.modules[%d]', $path, $position), $context);
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}
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return $row;
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}
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/** @param array<array-key, mixed> $spec */
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private function module(string $name, array $spec, string $path, string $context): Block
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{
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$short = ModuleCatalog::shortName($name);
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$fields = array_keys(ShortformMap::fields($short));
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$hasItems = $this->catalog->childrenOf($name) !== [];
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$allowed = array_merge(
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self::COMMON,
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$fields,
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$hasItems ? ['items'] : [],
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$name === 'divi/group' ? ['modules'] : []
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);
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$this->unknownKeys($spec, $allowed, $path);
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// "type" and "label" of a node are its module type and admin label; the short-form fields
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// of the same name (contact-field type, social network label) go through lit-divi-update "set".
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$values = array_intersect_key($spec, array_flip(array_diff($fields, self::COMMON)));
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if ($name === 'divi/heading' && ! array_key_exists('level', $values)) {
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$values['level'] = 'h2';
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}
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$attrs = ['builderVersion' => $this->builderVersion];
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if ($values !== []) {
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$result = $this->shortform->apply($short, $attrs, $values, $path);
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$attrs = $result['attrs'];
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$this->errors += $result['errors'];
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}
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$block = Block::create($name, $this->common($name, $attrs, $spec, $path, $this->autoLabel($name, $context)));
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if ($hasItems) {
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$this->children($block, $spec['items'] ?? [], $path . '.items', $context);
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} elseif ($name === 'divi/group') {
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$this->children($block, $spec['modules'] ?? [], $path . '.modules', $context);
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}
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return $block;
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}
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/**
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* Preset, full-form attrs and admin label of a new block. The label is $spec's "label"
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* when given ("" = none), else $autoLabel.
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*
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* @param array<string, mixed> $attrs
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* @param array<array-key, mixed> $spec
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* @return array<string, mixed>
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*/
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private function common(string $name, array $attrs, array $spec, string $path, ?string $autoLabel): array
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{
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$attrs = $this->presetAndAttrs($name, $attrs, $spec, $path);
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$label = array_key_exists('label', $spec) && $spec['label'] !== null ? $spec['label'] : $autoLabel;
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if ($label === null || $label === '') {
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return $attrs;
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}
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return $this->label($name, $attrs, $label, $path . '.label');
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}
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/**
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* @param array<string, mixed> $attrs
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* @param array<array-key, mixed> $spec
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* @return array<string, mixed>
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*/
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private function presetAndAttrs(string $name, array $attrs, array $spec, string $path): array
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{
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if (array_key_exists('preset', $spec)) {
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$attrs = $this->preset($name, $attrs, $spec['preset'], $path . '.preset');
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}
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if (! array_key_exists('attrs', $spec)) {
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return $attrs;
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}
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if (! is_array($spec['attrs']) || array_is_list($spec['attrs'])) {
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$this->errors[$path . '.attrs'] = 'Objekt "Attributpfad": {Breakpoint: Wert} erwartet';
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return $attrs;
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}
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$result = $this->attrWriter->apply($name, $attrs, $spec['attrs'], $path . '.attrs');
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$this->errors += $result['errors'];
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array_push($this->invalidPaths, ...$result['invalid_paths']);
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return $result['attrs'];
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}
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/**
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* The admin label, cleaned as text at the choke point (ruling S13): a label that fails there,
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* or that still carries a reference, is an error and nothing is written.
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*
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* @param array<string, mixed> $attrs
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* @return array<string, mixed>
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*/
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private function label(string $name, array $attrs, mixed $label, string $path): array
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{
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if (! is_string($label)) {
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$this->errors[$path] = 'Text erwartet';
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return $attrs;
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}
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try {
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$clean = $this->attrWriter->cleanValue($name, self::LABEL_PATH, $label, null, 'text');
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} catch (InvalidArgumentException $e) {
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$this->errors[$path] = $e->getMessage();
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return $attrs;
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}
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if (! is_string($clean) || VariableRef::contains($clean)) {
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$this->errors[$path] = 'Beschriftung: nur Text, keine Divi-Verweise oder Platzhalter';
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return $attrs;
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}
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return $clean === '' ? $attrs : AttrMap::set($attrs, self::LABEL_PATH, ['desktop' => ['value' => $clean]]);
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}
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/**
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* @param array<string, mixed> $attrs
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* @return array<string, mixed>
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*/
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private function preset(string $name, array $attrs, mixed $preset, string $path): array
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{
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if ($preset === null || $preset === '') {
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unset($attrs['modulePreset']);
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return $attrs;
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}
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$id = is_string($preset) ? $this->presetId($name, $preset, $path) : null;
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if ($id === null) {
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if (! isset($this->errors[$path])) {
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$names = $this->design->modulePresetNames($name);
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$this->errors[$path] = sprintf(
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'unbekanntes Preset; vorhanden für %s: %s',
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$name,
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$names === [] ? '(keine)' : implode(', ', $names)
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);
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}
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return $attrs;
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}
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// Design-system data, but still through the choke point: an id text() would change is refused.
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try {
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$clean = $this->attrWriter->cleanValue($name, 'modulePreset', $id, null, 'text');
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} catch (InvalidArgumentException $e) {
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$clean = null;
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}
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if ($clean !== $id) {
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$this->errors[$path] = sprintf('Preset-ID "%s" ist ungültig', $id);
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return $attrs;
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}
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$attrs['modulePreset'] = [$id];
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return $attrs;
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}
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/**
|
||||
* Module preset id by id, else by name (case-insensitive); a name several presets of the
|
||||
* module share is an error listing their ids (ruling S13a). Null when unknown or ambiguous.
|
||||
*/
|
||||
private function presetId(string $name, string $preset, string $path): ?string
|
||||
{
|
||||
$wanted = trim($preset);
|
||||
$key = mb_strtolower($wanted);
|
||||
$ids = [];
|
||||
foreach ($this->design->presets() as $entry) {
|
||||
if ($entry['kind'] !== 'module' || $entry['module'] !== $name) {
|
||||
continue;
|
||||
}
|
||||
|
||||
if ($entry['id'] === $wanted) {
|
||||
return $entry['id'];
|
||||
}
|
||||
|
||||
if (mb_strtolower($entry['name']) === $key) {
|
||||
$ids[] = $entry['id'];
|
||||
}
|
||||
}
|
||||
|
||||
if (count($ids) > 1) {
|
||||
$this->errors[$path] = sprintf(
|
||||
'Preset-Name "%s" ist mehrdeutig; bitte die ID angeben: %s.',
|
||||
$wanted,
|
||||
implode(', ', $ids)
|
||||
);
|
||||
|
||||
return null;
|
||||
}
|
||||
|
||||
return $ids[0] ?? null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Ruling S13: the short-form color check (ShortformWriter::color()), never text().
|
||||
*
|
||||
* @param array<string, mixed> $attrs
|
||||
* @return array<string, mixed>
|
||||
*/
|
||||
private function backgroundColor(array $attrs, mixed $color, string $path): array
|
||||
{
|
||||
try {
|
||||
$clean = $this->shortform->color('divi/section', 'module.decoration.background', $color, 'color');
|
||||
} catch (InvalidArgumentException $e) {
|
||||
$this->errors[$path] = $e->getMessage();
|
||||
|
||||
return $attrs;
|
||||
}
|
||||
|
||||
return AttrMap::set($attrs, 'module.decoration.background', ['desktop' => ['value' => ['color' => $clean]]]);
|
||||
}
|
||||
|
||||
private function children(Block $parent, mixed $specs, string $path, string $context): void
|
||||
{
|
||||
if (! is_array($specs) || ($specs !== [] && ! array_is_list($specs))) {
|
||||
$this->errors[$path] = 'Liste erwartet';
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
foreach ($specs as $position => $spec) {
|
||||
$child = $this->node($spec, $parent, sprintf('%s[%d]', $path, $position), $context);
|
||||
if ($child !== null) {
|
||||
$parent->insertChild(PHP_INT_MAX, $child);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* "1_3,2_3" → flexTypes ["8_24", "16_24"]; the fractions must add up to one row.
|
||||
*
|
||||
* @return list<string>
|
||||
*/
|
||||
private function widths(mixed $columns, string $path): array
|
||||
{
|
||||
$parts = is_string($columns) ? array_map('trim', explode(',', $columns)) : [];
|
||||
$widths = [];
|
||||
$sum = 0.0;
|
||||
foreach ($parts as $part) {
|
||||
$valid = preg_match('/^(\d{1,2})_(\d{1,2})$/D', $part, $match) === 1
|
||||
&& (int) $match[1] >= 1
|
||||
&& (int) $match[1] <= (int) $match[2];
|
||||
if (! $valid) {
|
||||
$this->errors[$path] = 'Spaltenaufteilung wie "1_2,1_2" oder "1_3,2_3" erwartet';
|
||||
|
||||
return ['24_24'];
|
||||
}
|
||||
|
||||
[$numerator, $denominator] = [(int) $match[1], (int) $match[2]];
|
||||
if (24 % $denominator === 0) {
|
||||
$widths[] = ($numerator * 24 / $denominator) . '_24';
|
||||
} elseif (in_array($part, self::SPECIAL_WIDTHS, true)) {
|
||||
$widths[] = $part;
|
||||
} else {
|
||||
$this->errors[$path] = sprintf('Spaltenbreite %s gibt es in Divi nicht', $part);
|
||||
|
||||
return ['24_24'];
|
||||
}
|
||||
$sum += $numerator / $denominator;
|
||||
}
|
||||
|
||||
if ($widths === [] || abs($sum - 1.0) > 0.01) {
|
||||
$this->errors[$path] = 'die Spaltenbreiten müssen zusammen eine volle Zeile ergeben (z. B. "1_3,2_3")';
|
||||
|
||||
return ['24_24'];
|
||||
}
|
||||
|
||||
return $widths;
|
||||
}
|
||||
|
||||
/**
|
||||
* @param array<array-key, mixed> $spec
|
||||
* @param list<string> $allowed
|
||||
*/
|
||||
private function unknownKeys(array $spec, array $allowed, string $path): void
|
||||
{
|
||||
foreach (array_diff(array_map('strval', array_keys($spec)), $allowed) as $key) {
|
||||
$this->errors[$path . '.' . $key] = 'unbekanntes Feld; erlaubt: ' . implode(', ', $allowed);
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user