feat: add new-tab links and removable media previews (1.7.3)

src/Content/DocumentValidator.php

@@ -42,7 +42,7 @@ final class DocumentValidator
     public function validate(array $document, bool $requireHeading = true): void
     {
         $schemaVersion = $document['schemaVersion'] ?? null;
-        $this->require(in_array($schemaVersion, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19], true), 'Unsupported document schema.');
+        $this->require(in_array($schemaVersion, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20], true), 'Unsupported document schema.');
         $this->text($document['title'] ?? null, 160);
         $this->text($document['description'] ?? null, 320);
         $this->require(is_array($document['blocks'] ?? null) && array_is_list($document['blocks']), 'Blocks must be a list.');
@@ -124,6 +124,15 @@ final class DocumentValidator
             $limit = 'text' === $type ? (RichText::supports($schemaVersion) ? RichText::MAX_LENGTH : 10000) : ('heading' === $type && RichText::headings($schemaVersion) ? 2000 : 300);
             $this->text($props['text'] ?? null, $limit);
         }
+        if (!$plugin && array_key_exists('newTab', $props)) {
+            $this->require($schemaVersion >= 20 && in_array($type, ['button', 'image', 'iconcard', 'cta', 'icon'], true), 'Neue Link-Tabs brauchen Schema v20 und einen verlinkbaren Block.');
+            $this->require(is_bool($props['newTab']), 'In neuem Tab öffnen ist an oder aus.');
+        }
+        foreach (($block['style'] ?? []) as $values) {
+            if ('none' === ($values['backgroundImage'] ?? null)) {
+                $this->require($schemaVersion >= 20, 'Ein entferntes Hintergrundbild braucht Schema v20.');
+            }
+        }
         if ('heading' === $type) {
             $this->require(is_int($props['level'] ?? null) && $props['level'] >= 1 && $props['level'] <= 6, 'Invalid heading level.');
             $headings += 1 === $props['level'] ? 1 : 0;