First commit.

src/MapField.php

@@ -0,0 +1,109 @@
+<?php
+
+namespace Lassehaslev\NovaMapFields;
+
+use Laravel\Nova\Fields\Field;
+use Illuminate\Support\Str;
+
+abstract class MapField extends Field
+{
+    /**
+     * The field's component.
+     *
+     * @var string
+     */
+    public $component = 'nova-map-fields';
+
+    /**
+     * Hide from index field.
+     *
+     * @var bool
+     */
+    public $showOnIndex = false;
+
+    /**
+     * Create a new field.
+     * And set default properties.
+     *
+     * @param string      $name
+     * @param string|null $attribute
+     * @param mixed|null  $resolveCallback
+     */
+    public function __construct($name, $attribute = null, $resolveCallback = null)
+    {
+        $this->setHeight('250px');
+        $this->setCenter(0, 0);
+        $this->setZoom(13);
+
+        $this->withMapMeta('type', $this->getMapFieldType());
+
+        parent::__construct($name, $attribute = null, $resolveCallback);
+    }
+
+    /**
+     * Set the height for the map.
+     *
+     * @param mixed $height
+     *
+     * @return $this
+     */
+    public function setHeight($height)
+    {
+        return $this->withMapMeta('height', $height);
+    }
+
+    /**
+     * Set the zoom for the map.
+     *
+     * @param mixed $level
+     *
+     * @return $this
+     */
+    public function setZoom($level)
+    {
+        return $this->withMapMeta('zoom', $level);
+    }
+
+    /**
+     * Set the position for the map.
+     *
+     * @param mixed $latitude
+     * @param mixed $longitude
+     *
+     * @return $this
+     */
+    public function setCenter($latitude, $longitude)
+    {
+        return $this->withMapMeta('center', [
+            'latitude' => $latitude,
+            'longitude' => $longitude,
+        ]);
+    }
+
+    /**
+     * Add meta data for the map.
+     *
+     * @param mixed $key
+     * @param mixed $value
+     */
+    protected function withMapMeta($key, $value)
+    {
+        $existingMapMeta = $this->meta['map'] ?? [];
+
+        return $this->withMeta([
+            'map' => array_merge($existingMapMeta, [
+                $key => $value,
+            ]),
+        ]);
+    }
+
+    /**
+     * Get component name.
+     *
+     * @return string
+     */
+    public function getMapFieldType()
+    {
+        return Str::kebab(class_basename($this));
+    }
+}