Dropdown Component with ViewComponents, TailwindCSS and Stimulus

component.html.erb

<!-- app/components/dropdown/component.html.erb -->
<div class="relative inline-block text-left" data-controller="dropdown--component">
  <div>
    <button type="button"
            class="inline-flex justify-center w-full rounded-md border border-gray-300 shadow-sm px-4 py-2 bg-white text-sm font-medium text-gray-700 hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-offset-gray-100 focus:ring-indigo-500"
            data-action="click->dropdown--component#toggleMenu"
            aria-haspopup="true"
            aria-expanded="true">
      <%= @title %>
      <!-- Heroicon name: solid/chevron-down -->
      <svg class="-mr-1 ml-2 h-5 w-5" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20" fill="currentColor" aria-hidden="true">
        <path fill-rule="evenodd" d="M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z" clip-rule="evenodd" />
      </svg>
    </button>
  </div>
  <div class="hidden origin-top-right absolute right-0 mt-2 w-56 rounded-md shadow-lg bg-white ring-1 ring-black ring-opacity-5 z-50"
       data-dropdown--component-target="menu">
    <div class="py-1" role="menu" aria-orientation="vertical" aria-labelledby="options-menu">
      <% @items.each do |item| %>
        <%= link_to item.title,
                    item.url,
                    role: "menuitem",
                    method: item.method,
                    class: "block px-4 py-2 text-sm text-gray-700 hover:bg-gray-100 hover:text-gray-900 #{item.selected ? 'font-semibold' : ''}" %>
      <% end %>
    </div>
  </div>
</div>

component.rb

# app/components/dropdown/component.rb 
module Dropdown
  class Component < ViewComponent::Base
    def initialize(items:)
      @items = items
      title_item = items.find { |x| x.selected }
      if title_item.nil?
        title_item = items.first
        items.first.selected = true
      end

      @title = title_item.title
    end
  end
  
  class Item
    attr_accessor :title
    attr_accessor :selected
    attr_accessor :url
    attr_accessor :method

    def initialize(title:, selected:, url:, method: :get)
      @title = title
      @selected = selected
      @url = url
      @method = method
    end
  end
end

component_controller.js

// app/components/dropdown/component_controller.js
import {Controller} from 'stimulus';

export default class extends Controller {
    static targets = ["menu"]

    toggleMenu() {
        this.menuTarget.classList.toggle('hidden');
    }
}