Add Accessories/Overflow

src/Blockkit/Blocks/Accessories/Overflow.php

@@ -0,0 +1,61 @@
+<?php
+
+namespace Slack\Blockkit\Blocks\Accessories;
+
+use \Exception;
+use Illuminate\Support\Arr;
+use Illuminate\Support\Collection;
+use Illuminate\Support\Facades\Log;
+use Slack\Blockkit\Blocks\Elements\Text;
+use Slack\Blockkit\Element;
+
+final class Overflow extends Element
+{
+	protected const LIMITS = [
+		'action_id' => 255,
+	];
+
+	private const MIN_OPTIONS = 1;
+	private const MAX_OPTIONS = 5;
+
+	/**
+	 * @param Text $placeholder
+	 * @param string $action_id
+	 * @param Collection $options
+	 * @throws Exception
+	 * @todo We dont handle option_groups yet.
+	 */
+	public function __construct(string $action_id,Collection $options)
+	{
+		parent::__construct();
+
+		// Defaults
+		$this->type = 'overflow';
+
+		$this->action_id = $this->validate('action_id',$action_id);
+
+		if (count($options) < self::MIN_OPTIONS)
+			throw new Exception(sprintf('Must have atleast %d options',self::MIN_OPTIONS));
+
+		if (count($options) > self::MAX_OPTIONS)
+			throw new Exception(sprintf('Can only have maximum %d options',self::MAX_OPTIONS));
+
+		$this->options = $options->transform(function($item) {
+			return ['text'=>Text::item(Arr::get($item,'name'),'plain_text'),'value'=>(string)Arr::get($item,'id')];
+		});
+	}
+
+	public static function item(string $action_id,Collection $options): self
+	{
+		return new self($action_id,$options);
+	}
+
+	/* OPTIONAL ITEMS */
+
+	public function confirm(Confirm $confirm): self
+	{
+		$this->confirm = $confirm;
+
+		return $this;
+	}
+}

src/Blockkit/Modal.php

@@ -92,6 +92,8 @@ final class Modal extends BlockKit
 			throw new Exception(sprintf('Unknown action %s',$string));
 
 		$this->action = $string;
+
+		return $this;
 	}
 
 	public function clear_on_close(bool $bool): self