Exposed richtext embeds

```
{
  content {
    blogPost(id: 240) {
      body {
        html5
        embeds {
          _info { id }
          ... on PlaceContent {
            name
            location { address }
          }
        }
      }
    }
  }
}
```

Author: Bertrand Dunogier

GraphQL/Resolver/RichTextResolver.php

@@ -6,7 +6,10 @@
 namespace BD\EzPlatformGraphQLBundle\GraphQL\Resolver;
 
 use DOMDocument;
+use eZ\Publish\API\Repository\ContentService;
+use eZ\Publish\API\Repository\Values\Content\Relation;
 use eZ\Publish\Core\FieldType\RichText\Converter as RichTextConverterInterface;
+use eZ\Publish\Core\FieldType\RichText;
 
 class RichTextResolver
 {
@@ -19,10 +22,26 @@ class RichTextResolver
      */
     private $richTextEditConverter;
 
-    public function __construct(RichTextConverterInterface $richTextConverter, RichTextConverterInterface $richTextEditConverter)
+    /**
+     * @var RichText\Type
+     */
+    private $fieldType;
+    /**
+     * @var ContentService
+     */
+    private $contentService;
+
+    public function __construct(
+        RichTextConverterInterface $richTextConverter,
+        RichTextConverterInterface $richTextEditConverter,
+        ContentService $contentService,
+        RichText\Type $fieldType
+    )
     {
         $this->richTextConverter = $richTextConverter;
         $this->richTextEditConverter = $richTextEditConverter;
+        $this->fieldType = $fieldType;
+        $this->contentService = $contentService;
     }
 
     public function xmlToHtml5(DOMDocument $document)
@@ -34,4 +53,12 @@ public function xmlToHtml5Edit(DOMDocument $document)
     {
         return $this->richTextEditConverter->convert($document)->saveHTML();
     }
+
+    public function resolveEmbeds(RichText\Value $value)
+    {
+        foreach ($this->fieldType->getRelations($value)[Relation::EMBED]['contentIds'] as $embeddedContentId) {
+            // @todo Handle locationIds as well
+            yield $this->contentService->loadContentInfo($embeddedContentId);
+        }
+    }
 }

Resources/config/graphql/Field.types.yml

@@ -390,6 +390,11 @@ RichTextFieldValue:
                 type: "String"
                 description: "Editable HTML5 representation."
                 resolve: "@=resolver('RichTextXmlToHtml5Edit', [value.xml])"
+                deprecationReason: "Use 'rendered' with the html5_edit format argument"
+            embeds:
+                type: "[DomainContent]"
+                description: "Content items embedded in this field"
+                resolve: "@=resolver('RichTextEmbeds', [value.value])"
     inherits: [HTMLFieldValue]
 
 SelectionFieldValue:

Resources/config/graphql/Url.types.yml

@@ -0,0 +1,18 @@
+Url:
+    type: object
+    config:
+        fields:
+            id:
+                type: ID
+                builder: Relay::GlobalId
+            href:
+                type: String
+                resolve: "@=value.url"
+            isValid:
+                type: Boolean
+            lastChecked:
+                type: DateTime
+            created:
+                type: DateTime
+            modified:
+                type: DateTime

Resources/config/resolvers.yml

@@ -100,9 +100,12 @@ services:
         arguments:
             - "@ezpublish.fieldType.ezrichtext.converter.output.xhtml5"
             - "@ezpublish.fieldType.ezrichtext.converter.edit.xhtml5"
+            - '@ezpublish.siteaccessaware.service.content'
+            - '@ezpublish.fieldType.ezrichtext'
         tags:
             - { name: overblog_graphql.resolver, alias: "RichTextXmlToHtml5", method: "xmlToHtml5" }
             - { name: overblog_graphql.resolver, alias: "RichTextXmlToHtml5Edit", method: "xmlToHtml5Edit" }
+            - { name: overblog_graphql.resolver, alias: "RichTextEmbeds", method: "resolveEmbeds" }
 
     BD\EzPlatformGraphQLBundle\GraphQL\Resolver\ImageFieldResolver:
         arguments: