Implement size fields for PageImageType.

Author: dadish

src/Field/PageImage/PageImageSizeField.php

@@ -0,0 +1,46 @@
+<?php
+
+namespace ProcessWire\GraphQL\Field\PageImage;
+
+use Youshido\GraphQL\Field\AbstractField;
+use Youshido\GraphQL\Config\Field\FieldConfig;
+use Youshido\GraphQL\Type\Scalar\IntType;
+use ProcessWire\GraphQL\Type\Object\PageImageType;
+use Youshido\GraphQL\Execution\ResolveInfo;
+
+class PageImageSizeField extends AbstractField{
+
+  public function getType()
+  {
+    return new PageImageType();
+  }
+
+  public function getName()
+  {
+    return 'size';
+  }
+
+  public function getDescription()
+  {
+    return 'Create a thumbnail of the PageImage with the desired size.';
+  }
+
+  public function build(FieldConfig $config)
+  {
+    $config->addArgument('width', [
+      'type' => new IntType(),
+      'description' => 'Target width of the new image',
+    ]);
+    $config->addArgument('height', [
+      'type' => new IntType(),
+      'description' => 'Target height of the new image',
+    ]);
+  }
+
+  public function resolve($value, array $args, ResolveInfo $info)
+  {
+    $width = isset($args['width']) ? $args['width'] : null;
+    $height = isset($args['height']) ? $args['height'] : null;
+    return $value->size($width, $height);
+  }
+}

src/Type/Object/PageImageType.php

@@ -7,6 +7,7 @@
 use Youshido\GraphQL\Type\Scalar\IntType;
 use Youshido\GraphQL\Type\ListType\ListType;
 use ProcessWire\GraphQL\Type\InterfaceType\PageFileInterfaceType;
+use ProcessWire\GraphQL\Field\PageImage\PageImageSizeField;
 
 class PageImageType extends AbstractObjectType {
 
@@ -48,6 +49,8 @@ public function build($config)
         return $value->getVariations();
       }
     ]);
+
+    $config->addField(new PageImageSizeField());
   }
 
   public function getInterfaces()