Add basic Hotwire Spark support

Author: codergeek121

Diff for: lib/custom_elements/rails/railtie.rb

@@ -2,10 +2,23 @@ module CustomElements
   module Rails
     class Railtie < ::Rails::Engine
       initializer "custom_elements-rails.assets.precompile" do |app|
-        if app.config.respond_to? :assets
+        if app.config.respond_to?(:assets)
           app.config.assets.precompile += %w( custom_elements-rails.js )
         end
       end
+
+      initializer "custom_elements-rails.spark", after: "hotwire_spark.config" do |app|
+        spark_available = app.config.respond_to?(:hotwire) && app.config.hotwire.respond_to?(:spark)
+        if spark_available
+          puts "spark_available"
+          # Custom elements don't seem to work with morphing
+          Hotwire::Spark.html_reload_method = :replace
+
+            # Just force full reloads after custom element change for now
+          Hotwire::Spark.html_paths << ::Rails.root.join("app/javascript/custom_elements").to_s
+          Hotwire::Spark.html_extensions << "js"
+        end
+      end
     end
   end
 end